Mladenović, Goran

Link to this page

Authority KeyName Variants
orcid::0000-0003-1706-7503
  • Mladenović, Goran (145)
  • Mladenović, Goran (2)
Projects
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200105 (University of Belgrade, Faculty of Mechanical Engineering) The development of a new generation of domestic machining systems
Razvoj tehnologija višeosne obrade složenih alata za potrebe domaće industrije Developed new methods for diagnosis and examination mechanical structures
Sustainability and improvement of mechanical systems in energetic, material handling and conveying by using forensic engineering, environmental and robust design Studying climate change and its influence on environment: impacts, adaptation and mitigation
"info:eu-repo/grantAgreement/MESTD/inst-2020/200105/RS//" Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200213 (Innovation Center of the Faculty of Mechanical Engineering)
Research and development of equipment and systems for industrial production, storage and processing vegetables and fruits SIRAMM - Eastern European twinning on Structural Integrity and Reliability of Advanced Materials obtained through additive Manufacturing
NATO SPS Project [EAP.SFPP 984738] BMA Trading Company
eu-repo/grantAgreement/MESTD/inst-2020/200105/RS// European Union’s Horizon 2020 Research and Innovation Program (H2020-WIDESPREAD2018, SIRAMM) under grant agreement No. 857124
H2020-WIDESPREAD-2018, SIRAMM Directed synthesis, structure and properties of multifunctional materials
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200066 (Lola Institute, Belgrade) Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200135 (University of Belgrade, Faculty of Technology and Metallurgy)
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200169 (University of Belgrade, Faculty of Forestry) Predefined functional properties polymer composite materials processes and equipment development
Innovative synergy of by-products, waste minimization and clean technologies in metallurgy Research of opportunities to improve welding technology for micro-alloyed steels
Ministry of Education, Science and Technological Development of the Republic of Serbia (contract: 451-03- 47/2023-01/200213) Ministry of Science and Technological Development of Serbia
NATO Science for Peace Project [EAP.SFPP 984738] NATO SPS Project EAP.SFPP 984738
Slovenian Research Agency [P2-0152] Transfer of Technology grant of the Innovation Fund of the Republic of Serbia, project no. TT1129

Author's Bibliography

New Trends in Engineering Research: Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023

Mitrović, Nenad; Mladenović, Goran; Mitrović, Aleksandra

(Springer, 2024)


                                            

                                            
Mitrović, N., Mladenović, G.,& Mitrović, A.. (2024). New Trends in Engineering Research: Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023. 
Springer..
https://doi.org/10.1007/978-3-031-46432-4
Mitrović N, Mladenović G, Mitrović A. New Trends in Engineering Research: Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023. 2024;.
doi:10.1007/978-3-031-46432-4 .
Mitrović, Nenad, Mladenović, Goran, Mitrović, Aleksandra, "New Trends in Engineering Research: Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023" (2024),
https://doi.org/10.1007/978-3-031-46432-4 . .
1

Determination of Compression Response for Various Dried Vegetables

Milošević, Miloš; Jevtić, Ivana; Trajković, Isaak; Zlatanović, Ivan; Mladenović, Goran; Korolija, Nenad

(Springer, 2024)

TY  - JOUR
AU  - Milošević, Miloš
AU  - Jevtić, Ivana
AU  - Trajković, Isaak
AU  - Zlatanović, Ivan
AU  - Mladenović, Goran
AU  - Korolija, Nenad
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7766
AB  - The texture of food plays a vital role in its overall quality, affecting both sensory experience and functional aspects, such as processing and preservation. To study texture in the field of food science and technology, various analytical methods are used tomeasure mechanical properties such as hardness, cohesiveness, and viscosity. One widely utilized technique for evaluating the texture of solid foods, particularly those with high firmness or brittleness such as dried vegetables, is compression testing. Here, a force is applied to a food sample until it deforms or fractures. In this particular study, dried onions, carrots, and peppers were chosen as test samples to investigate their texture and compression properties. To perform the tests, the researchers employed a Shimadzu AGS-X universal testing machine equipped with a 1 kN load cell capacity. This machine allowed them to compress the samples and measure the force required to achieve a specific deformation. The obtained results revealed that the texture and compression properties of the
dried vegetables were significantly influenced by the specific part of the vegetable being tested. For instance, when examining the dried onions, a notable disparity was observed between the inner and outer parts. The basal plate of the onion, in particular, exhibited much greater hardness compared to the middle portion of the dried onion. Consequently, breaking the sample required a higher compression force. This discovery implies that the texture and compression properties of dried vegetables are closely tied to their inherent characteristics, internal structure, and
composition.
PB  - Springer
T2  - New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023
T1  - Determination of Compression Response for Various Dried Vegetables
EP  - 104
SP  - 96
VL  - 792
DO  - 10.1007/978-3-031-46432-4_8
ER  - 
@article{
author = "Milošević, Miloš and Jevtić, Ivana and Trajković, Isaak and Zlatanović, Ivan and Mladenović, Goran and Korolija, Nenad",
year = "2024",
abstract = "The texture of food plays a vital role in its overall quality, affecting both sensory experience and functional aspects, such as processing and preservation. To study texture in the field of food science and technology, various analytical methods are used tomeasure mechanical properties such as hardness, cohesiveness, and viscosity. One widely utilized technique for evaluating the texture of solid foods, particularly those with high firmness or brittleness such as dried vegetables, is compression testing. Here, a force is applied to a food sample until it deforms or fractures. In this particular study, dried onions, carrots, and peppers were chosen as test samples to investigate their texture and compression properties. To perform the tests, the researchers employed a Shimadzu AGS-X universal testing machine equipped with a 1 kN load cell capacity. This machine allowed them to compress the samples and measure the force required to achieve a specific deformation. The obtained results revealed that the texture and compression properties of the
dried vegetables were significantly influenced by the specific part of the vegetable being tested. For instance, when examining the dried onions, a notable disparity was observed between the inner and outer parts. The basal plate of the onion, in particular, exhibited much greater hardness compared to the middle portion of the dried onion. Consequently, breaking the sample required a higher compression force. This discovery implies that the texture and compression properties of dried vegetables are closely tied to their inherent characteristics, internal structure, and
composition.",
publisher = "Springer",
journal = "New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023",
title = "Determination of Compression Response for Various Dried Vegetables",
pages = "104-96",
volume = "792",
doi = "10.1007/978-3-031-46432-4_8"
}
Milošević, M., Jevtić, I., Trajković, I., Zlatanović, I., Mladenović, G.,& Korolija, N.. (2024). Determination of Compression Response for Various Dried Vegetables. in New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023
Springer., 792, 96-104.
https://doi.org/10.1007/978-3-031-46432-4_8
Milošević M, Jevtić I, Trajković I, Zlatanović I, Mladenović G, Korolija N. Determination of Compression Response for Various Dried Vegetables. in New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023. 2024;792:96-104.
doi:10.1007/978-3-031-46432-4_8 .
Milošević, Miloš, Jevtić, Ivana, Trajković, Isaak, Zlatanović, Ivan, Mladenović, Goran, Korolija, Nenad, "Determination of Compression Response for Various Dried Vegetables" in New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023, 792 (2024):96-104,
https://doi.org/10.1007/978-3-031-46432-4_8 . .

Dimensional Accuracy of Compressive Specimens Obtained by SLS Technology

Jevtić, Ivana; Mladenović, Goran; Milošević, Miloš; Milovanović, Aleksa; Travica, Milan; Trajković, Isaak

(Springer, 2024)

TY  - JOUR
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milošević, Miloš
AU  - Milovanović, Aleksa
AU  - Travica, Milan
AU  - Trajković, Isaak
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7764
AB  - The objective of this study is to examine the accuracy of dimensional measurements for parts produced using Additive Manufacturing (AM) technology. The specific 3D printer employed in this research is Fuse 1 (FormLabs, Summerville, MA). The printer operates on the Selective Laser Sintering (SLS) method, enabling the simultaneous creation of objects with diverse shapes and sizes, as long as they are printed at a minimum separation distance of 5 mm. The printing process involved a layer thickness of 110 microns. To assess the dimensional accuracy, a particular type of specimen adhering to the ISO 604 standard for compressive specimens was analyzed. These compressive specimens possess dimensions of Ø10 × 20 mm. Four sets of specimens were fabricated, differing in their printing orientation (horizontal or vertical) and printing location (edge or middle of the powder bed). Polyamide (PA 12) was the chosen material for printing the specimens, known to exhibit compressive strength values of 13/24/55 MPa at 1%/2%/5% strain, respectively. After printing, the specimens were subjected to a 3D scanner Atos Core 200. The most significant deviations observed across all four series of specimens were primarily in terms of height, ranging from 0.1 to 0.15 mm. In the case of vertically printed specimens positioned in the middle of the powder bed, variations in the width of the specimens were also noted.
PB  - Springer
T2  - New Trends in Engineering Research, Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023
T1  - Dimensional Accuracy of Compressive Specimens Obtained by SLS Technology
EP  - 213
SP  - 206
VL  - 792
DO  - 10.1007/978-3-031-46432-4_16
ER  - 
@article{
author = "Jevtić, Ivana and Mladenović, Goran and Milošević, Miloš and Milovanović, Aleksa and Travica, Milan and Trajković, Isaak",
year = "2024",
abstract = "The objective of this study is to examine the accuracy of dimensional measurements for parts produced using Additive Manufacturing (AM) technology. The specific 3D printer employed in this research is Fuse 1 (FormLabs, Summerville, MA). The printer operates on the Selective Laser Sintering (SLS) method, enabling the simultaneous creation of objects with diverse shapes and sizes, as long as they are printed at a minimum separation distance of 5 mm. The printing process involved a layer thickness of 110 microns. To assess the dimensional accuracy, a particular type of specimen adhering to the ISO 604 standard for compressive specimens was analyzed. These compressive specimens possess dimensions of Ø10 × 20 mm. Four sets of specimens were fabricated, differing in their printing orientation (horizontal or vertical) and printing location (edge or middle of the powder bed). Polyamide (PA 12) was the chosen material for printing the specimens, known to exhibit compressive strength values of 13/24/55 MPa at 1%/2%/5% strain, respectively. After printing, the specimens were subjected to a 3D scanner Atos Core 200. The most significant deviations observed across all four series of specimens were primarily in terms of height, ranging from 0.1 to 0.15 mm. In the case of vertically printed specimens positioned in the middle of the powder bed, variations in the width of the specimens were also noted.",
publisher = "Springer",
journal = "New Trends in Engineering Research, Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023",
title = "Dimensional Accuracy of Compressive Specimens Obtained by SLS Technology",
pages = "213-206",
volume = "792",
doi = "10.1007/978-3-031-46432-4_16"
}
Jevtić, I., Mladenović, G., Milošević, M., Milovanović, A., Travica, M.,& Trajković, I.. (2024). Dimensional Accuracy of Compressive Specimens Obtained by SLS Technology. in New Trends in Engineering Research, Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023
Springer., 792, 206-213.
https://doi.org/10.1007/978-3-031-46432-4_16
Jevtić I, Mladenović G, Milošević M, Milovanović A, Travica M, Trajković I. Dimensional Accuracy of Compressive Specimens Obtained by SLS Technology. in New Trends in Engineering Research, Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023. 2024;792:206-213.
doi:10.1007/978-3-031-46432-4_16 .
Jevtić, Ivana, Mladenović, Goran, Milošević, Miloš, Milovanović, Aleksa, Travica, Milan, Trajković, Isaak, "Dimensional Accuracy of Compressive Specimens Obtained by SLS Technology" in New Trends in Engineering Research, Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023, 792 (2024):206-213,
https://doi.org/10.1007/978-3-031-46432-4_16 . .

The Possibility of Applying a Universal Testing Machine for Evaluating Food Textures

Jevtić, Ivana; Trajković, Isaak; Zlatanović, Ivan; Mladenović, Goran; Korolija, Nenad; Milošević, Miloš

(Springer, 2024)

TY  - JOUR
AU  - Jevtić, Ivana
AU  - Trajković, Isaak
AU  - Zlatanović, Ivan
AU  - Mladenović, Goran
AU  - Korolija, Nenad
AU  - Milošević, Miloš
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7765
AB  - The evaluation of food texture is an essential aspect of food quality control, directly influencing consumer acceptance and preference. Various methods have been developed to assess food texture, including sensory evaluation, rheological measurements, and instrumental analysis. Among the versatile instruments used for measuring the mechanical properties of food, the universal testing machine (UTM) stands out. Traditionally used in the field of materials science
and engineering, the possibility of applying UTM for evaluating food textures has gained significant attention in recent years. The UTM can perform compression, tension, bending, and shear tests on food samples, providing objective and quantifiable data on their mechanical properties. Compression testing involves measuring the force required to compress a food sample between two plates, shear testing measures the force required to cut through a food sample, while puncture testing measures the force required to puncture a food sample with a probe. This paper reviews the current state-of-the-art of UTM in the evaluation of food textures, including the types of tests that can be performed, the parameters that can be measured, and the challenges and limitations associated with the technique. The potential of utilizing UTMs in the food industry for quality control
and product development, instead of traditional sensory evaluation methods, is discussed, along with its advantages and disadvantages. Overall, UTM represents a promising tool for the objective evaluation of food textures, and further research is needed to optimize its application in this field.
PB  - Springer
T2  - New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023
T1  - The Possibility of Applying a Universal Testing Machine for Evaluating Food Textures
EP  - 229
SP  - 222
VL  - 792
DO  - 10.1007/978-3-031-46432-4_18
ER  - 
@article{
author = "Jevtić, Ivana and Trajković, Isaak and Zlatanović, Ivan and Mladenović, Goran and Korolija, Nenad and Milošević, Miloš",
year = "2024",
abstract = "The evaluation of food texture is an essential aspect of food quality control, directly influencing consumer acceptance and preference. Various methods have been developed to assess food texture, including sensory evaluation, rheological measurements, and instrumental analysis. Among the versatile instruments used for measuring the mechanical properties of food, the universal testing machine (UTM) stands out. Traditionally used in the field of materials science
and engineering, the possibility of applying UTM for evaluating food textures has gained significant attention in recent years. The UTM can perform compression, tension, bending, and shear tests on food samples, providing objective and quantifiable data on their mechanical properties. Compression testing involves measuring the force required to compress a food sample between two plates, shear testing measures the force required to cut through a food sample, while puncture testing measures the force required to puncture a food sample with a probe. This paper reviews the current state-of-the-art of UTM in the evaluation of food textures, including the types of tests that can be performed, the parameters that can be measured, and the challenges and limitations associated with the technique. The potential of utilizing UTMs in the food industry for quality control
and product development, instead of traditional sensory evaluation methods, is discussed, along with its advantages and disadvantages. Overall, UTM represents a promising tool for the objective evaluation of food textures, and further research is needed to optimize its application in this field.",
publisher = "Springer",
journal = "New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023",
title = "The Possibility of Applying a Universal Testing Machine for Evaluating Food Textures",
pages = "229-222",
volume = "792",
doi = "10.1007/978-3-031-46432-4_18"
}
Jevtić, I., Trajković, I., Zlatanović, I., Mladenović, G., Korolija, N.,& Milošević, M.. (2024). The Possibility of Applying a Universal Testing Machine for Evaluating Food Textures. in New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023
Springer., 792, 222-229.
https://doi.org/10.1007/978-3-031-46432-4_18
Jevtić I, Trajković I, Zlatanović I, Mladenović G, Korolija N, Milošević M. The Possibility of Applying a Universal Testing Machine for Evaluating Food Textures. in New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023. 2024;792:222-229.
doi:10.1007/978-3-031-46432-4_18 .
Jevtić, Ivana, Trajković, Isaak, Zlatanović, Ivan, Mladenović, Goran, Korolija, Nenad, Milošević, Miloš, "The Possibility of Applying a Universal Testing Machine for Evaluating Food Textures" in New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023, 792 (2024):222-229,
https://doi.org/10.1007/978-3-031-46432-4_18 . .

PRINTING ORIENTATION AND PLACE INFLUENCING THE COMPRESSIVE STRENGTH OF POLYAMID 12 SPECIMENS OBTAINED BY SLS TECHNOLOGY

Jevtić, Ivana; Stojanović, Jagoš; Milovanović, Aleksa; Trajković, Isaak; Milošević, Miloš; Mladenović, Goran

(2024)

TY  - JOUR
AU  - Jevtić, Ivana
AU  - Stojanović, Jagoš
AU  - Milovanović, Aleksa
AU  - Trajković, Isaak
AU  - Milošević, Miloš
AU  - Mladenović, Goran
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7750
AB  - This research aims to determine how the orientation and placement of printing impacts the compressive strength of specimens manufactured by Selective Laser Sintering (SLS).
The research includes compressive specimens in which the CAD model dimensions are selected according to the ISO 604 standard, and specimen geometry Ø10x20 mm in bulk. All specimen configurations are additively manufactured in two different printing orientations, horizontal and vertical, and printed in the middle and on the edge of the powder bed. All specimens are additively manufactured using Polyamide 12 (PA 12) material on a Fuse 1 device (FormLabs, located in Summerville, MA). Compressive strength testing was carried out using a Shimadzu AGS-X universal testing machine (Shimadzu Corp., Kyoto, Japan).
T2  - STRUCTURAL INTEGRITY AND LIFE
T1  - PRINTING ORIENTATION AND PLACE INFLUENCING THE COMPRESSIVE STRENGTH OF POLYAMID 12 SPECIMENS OBTAINED BY SLS TECHNOLOGY
EP  - 7
IS  - 1
SP  - 3
VL  - 24
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7750
ER  - 
@article{
author = "Jevtić, Ivana and Stojanović, Jagoš and Milovanović, Aleksa and Trajković, Isaak and Milošević, Miloš and Mladenović, Goran",
year = "2024",
abstract = "This research aims to determine how the orientation and placement of printing impacts the compressive strength of specimens manufactured by Selective Laser Sintering (SLS).
The research includes compressive specimens in which the CAD model dimensions are selected according to the ISO 604 standard, and specimen geometry Ø10x20 mm in bulk. All specimen configurations are additively manufactured in two different printing orientations, horizontal and vertical, and printed in the middle and on the edge of the powder bed. All specimens are additively manufactured using Polyamide 12 (PA 12) material on a Fuse 1 device (FormLabs, located in Summerville, MA). Compressive strength testing was carried out using a Shimadzu AGS-X universal testing machine (Shimadzu Corp., Kyoto, Japan).",
journal = "STRUCTURAL INTEGRITY AND LIFE",
title = "PRINTING ORIENTATION AND PLACE INFLUENCING THE COMPRESSIVE STRENGTH OF POLYAMID 12 SPECIMENS OBTAINED BY SLS TECHNOLOGY",
pages = "7-3",
number = "1",
volume = "24",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7750"
}
Jevtić, I., Stojanović, J., Milovanović, A., Trajković, I., Milošević, M.,& Mladenović, G.. (2024). PRINTING ORIENTATION AND PLACE INFLUENCING THE COMPRESSIVE STRENGTH OF POLYAMID 12 SPECIMENS OBTAINED BY SLS TECHNOLOGY. in STRUCTURAL INTEGRITY AND LIFE, 24(1), 3-7.
https://hdl.handle.net/21.15107/rcub_machinery_7750
Jevtić I, Stojanović J, Milovanović A, Trajković I, Milošević M, Mladenović G. PRINTING ORIENTATION AND PLACE INFLUENCING THE COMPRESSIVE STRENGTH OF POLYAMID 12 SPECIMENS OBTAINED BY SLS TECHNOLOGY. in STRUCTURAL INTEGRITY AND LIFE. 2024;24(1):3-7.
https://hdl.handle.net/21.15107/rcub_machinery_7750 .
Jevtić, Ivana, Stojanović, Jagoš, Milovanović, Aleksa, Trajković, Isaak, Milošević, Miloš, Mladenović, Goran, "PRINTING ORIENTATION AND PLACE INFLUENCING THE COMPRESSIVE STRENGTH OF POLYAMID 12 SPECIMENS OBTAINED BY SLS TECHNOLOGY" in STRUCTURAL INTEGRITY AND LIFE, 24, no. 1 (2024):3-7,
https://hdl.handle.net/21.15107/rcub_machinery_7750 .

Deviations measurements of SLS PA material at compressive specimens

Jevtić, Ivana; Mladenović, Goran; Milošević, Miloš; Trajković, Isaak; Milovanović, Aleksa

(Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia, 2023)

TY  - CONF
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milošević, Miloš
AU  - Trajković, Isaak
AU  - Milovanović, Aleksa
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7372
AB  - SLS technology is a popular choice in various industries worldwide because of its ability to produce complex geometry components with less effort when compared to conventional methods. The technology involves using materials in powder forms, such as polyamides (PA), polystyrenes, thermoplastic elastomers, and polyaryletherketones. In this study, the research focuses on compressive PA12 specimens with CAD model dimensions selected according to the ISO 604 standard, with bulk dimensions of Ø10x20 [mm]. The study utilizes a Fuse 1 (FormLabs, Summerville, MA) 3D printer that employs the SLS technology. This printer is capable of producing objects with different shapes and dimensions simultaneously, provided that they are printed at a minimum distance of 5 [mm] apart. The research involves producing four batches of specimens, each differing in printing orientation (i.e., horizontal and vertical) and printing location (i.e., printed on the edge and in the middle of the powder bed). The printed specimens are scanned, and the obtained scans are compared with the original CAD model in the GOM Inspect program. The highest deviations in all four specimen series are in height, ranging from 0.1 up to 0.15 mm. In the case of vertical specimens printed in the middle of the powder bed, there are also deviations in the width of the specimen.
PB  - Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia
C3  - International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor)
T1  - Deviations measurements of SLS PA material at compressive specimens
SP  - 8
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7372
ER  - 
@conference{
author = "Jevtić, Ivana and Mladenović, Goran and Milošević, Miloš and Trajković, Isaak and Milovanović, Aleksa",
year = "2023",
abstract = "SLS technology is a popular choice in various industries worldwide because of its ability to produce complex geometry components with less effort when compared to conventional methods. The technology involves using materials in powder forms, such as polyamides (PA), polystyrenes, thermoplastic elastomers, and polyaryletherketones. In this study, the research focuses on compressive PA12 specimens with CAD model dimensions selected according to the ISO 604 standard, with bulk dimensions of Ø10x20 [mm]. The study utilizes a Fuse 1 (FormLabs, Summerville, MA) 3D printer that employs the SLS technology. This printer is capable of producing objects with different shapes and dimensions simultaneously, provided that they are printed at a minimum distance of 5 [mm] apart. The research involves producing four batches of specimens, each differing in printing orientation (i.e., horizontal and vertical) and printing location (i.e., printed on the edge and in the middle of the powder bed). The printed specimens are scanned, and the obtained scans are compared with the original CAD model in the GOM Inspect program. The highest deviations in all four specimen series are in height, ranging from 0.1 up to 0.15 mm. In the case of vertical specimens printed in the middle of the powder bed, there are also deviations in the width of the specimen.",
publisher = "Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia",
journal = "International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor)",
title = "Deviations measurements of SLS PA material at compressive specimens",
pages = "8",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7372"
}
Jevtić, I., Mladenović, G., Milošević, M., Trajković, I.,& Milovanović, A.. (2023). Deviations measurements of SLS PA material at compressive specimens. in International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor)
Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia., 8.
https://hdl.handle.net/21.15107/rcub_machinery_7372
Jevtić I, Mladenović G, Milošević M, Trajković I, Milovanović A. Deviations measurements of SLS PA material at compressive specimens. in International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor). 2023;:8.
https://hdl.handle.net/21.15107/rcub_machinery_7372 .
Jevtić, Ivana, Mladenović, Goran, Milošević, Miloš, Trajković, Isaak, Milovanović, Aleksa, "Deviations measurements of SLS PA material at compressive specimens" in International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor) (2023):8,
https://hdl.handle.net/21.15107/rcub_machinery_7372 .

Types of bee drinkers

Jevtić, Ivana; Drakulović, Obrad; Mladenović, Goran; Milošević, Miloš

(The Academy of Applied Technical Studies Belgrade, 2023)

TY  - CONF
AU  - Jevtić, Ivana
AU  - Drakulović, Obrad
AU  - Mladenović, Goran
AU  - Milošević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7641
AB  - A continuous and sufficient supply of top-quality water is imperative for the proper development and survival of bees. Beekeepers often rely on a variety of water containers, each afflicted with numerous shortcomings such as limited capacity, irregular water availability, and subpar sanitation. This analysis aims to investigate the different categories of bee drinkers essential for meeting the water needs of bees. Additionally, we will conduct an in-depth examination of the pros and cons associated with each type of waterer to gain insights into their effectiveness and their impact on bee colonies. Ultimately, we will determine the most suitable waterer for the unique conditions and demands of beekeeping operations.
PB  - The Academy of Applied Technical Studies Belgrade
C3  - International Scientific and Professional Conference Politehnika 2023
T1  - Types of bee drinkers
EP  - 1164
SP  - 1161
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7641
ER  - 
@conference{
author = "Jevtić, Ivana and Drakulović, Obrad and Mladenović, Goran and Milošević, Miloš",
year = "2023",
abstract = "A continuous and sufficient supply of top-quality water is imperative for the proper development and survival of bees. Beekeepers often rely on a variety of water containers, each afflicted with numerous shortcomings such as limited capacity, irregular water availability, and subpar sanitation. This analysis aims to investigate the different categories of bee drinkers essential for meeting the water needs of bees. Additionally, we will conduct an in-depth examination of the pros and cons associated with each type of waterer to gain insights into their effectiveness and their impact on bee colonies. Ultimately, we will determine the most suitable waterer for the unique conditions and demands of beekeeping operations.",
publisher = "The Academy of Applied Technical Studies Belgrade",
journal = "International Scientific and Professional Conference Politehnika 2023",
title = "Types of bee drinkers",
pages = "1164-1161",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7641"
}
Jevtić, I., Drakulović, O., Mladenović, G.,& Milošević, M.. (2023). Types of bee drinkers. in International Scientific and Professional Conference Politehnika 2023
The Academy of Applied Technical Studies Belgrade., 1161-1164.
https://hdl.handle.net/21.15107/rcub_machinery_7641
Jevtić I, Drakulović O, Mladenović G, Milošević M. Types of bee drinkers. in International Scientific and Professional Conference Politehnika 2023. 2023;:1161-1164.
https://hdl.handle.net/21.15107/rcub_machinery_7641 .
Jevtić, Ivana, Drakulović, Obrad, Mladenović, Goran, Milošević, Miloš, "Types of bee drinkers" in International Scientific and Professional Conference Politehnika 2023 (2023):1161-1164,
https://hdl.handle.net/21.15107/rcub_machinery_7641 .

Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity

Popović, Mihajlo; Pjević, Miloš; Milovanović, Aleksa; Mladenović, Goran; Milošević, Miloš

(Springer Nature, 2023)

TY  - JOUR
AU  - Popović, Mihajlo
AU  - Pjević, Miloš
AU  - Milovanović, Aleksa
AU  - Mladenović, Goran
AU  - Milošević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7198
AB  - High demand for part customization shifts industries toward AM technologies. Part customization in high-volume manufacturing is developed to its limits, whereas low-volume production using AM is still economically unjustified. FDM technology is quite common in low-volume AM production, but the main issue is poor printing parameter optimization which may result in insufficient final part quality. The subject of this paper is the experimental determination of the optimal parameters for the PLA polymer FDM parts, focusing on nozzle temperature and printing speed. Part geometry and mechanical properties are evaluated for the temperature range of 170–210 °C and speeds of 40, 80, and 120 mm/min. Roughness measurements for part geometrical accuracy assessment and tensile tests for mechanical property estimation have shown the clear advantage of 190 °C and 40 mm/min over the other parameter combinations. However, for higher FDM process productivity 80 mm/min speed may also be considered with 190 °C.
PB  - Springer Nature
T2  - Journal of Mechanical Science and Technology
T1  - Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity
EP  - 706
IS  - 2
SP  - 697
VL  - 37
DO  - 10.1007/s12206-023-0113-6
ER  - 
@article{
author = "Popović, Mihajlo and Pjević, Miloš and Milovanović, Aleksa and Mladenović, Goran and Milošević, Miloš",
year = "2023",
abstract = "High demand for part customization shifts industries toward AM technologies. Part customization in high-volume manufacturing is developed to its limits, whereas low-volume production using AM is still economically unjustified. FDM technology is quite common in low-volume AM production, but the main issue is poor printing parameter optimization which may result in insufficient final part quality. The subject of this paper is the experimental determination of the optimal parameters for the PLA polymer FDM parts, focusing on nozzle temperature and printing speed. Part geometry and mechanical properties are evaluated for the temperature range of 170–210 °C and speeds of 40, 80, and 120 mm/min. Roughness measurements for part geometrical accuracy assessment and tensile tests for mechanical property estimation have shown the clear advantage of 190 °C and 40 mm/min over the other parameter combinations. However, for higher FDM process productivity 80 mm/min speed may also be considered with 190 °C.",
publisher = "Springer Nature",
journal = "Journal of Mechanical Science and Technology",
title = "Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity",
pages = "706-697",
number = "2",
volume = "37",
doi = "10.1007/s12206-023-0113-6"
}
Popović, M., Pjević, M., Milovanović, A., Mladenović, G.,& Milošević, M.. (2023). Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity. in Journal of Mechanical Science and Technology
Springer Nature., 37(2), 697-706.
https://doi.org/10.1007/s12206-023-0113-6
Popović M, Pjević M, Milovanović A, Mladenović G, Milošević M. Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity. in Journal of Mechanical Science and Technology. 2023;37(2):697-706.
doi:10.1007/s12206-023-0113-6 .
Popović, Mihajlo, Pjević, Miloš, Milovanović, Aleksa, Mladenović, Goran, Milošević, Miloš, "Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity" in Journal of Mechanical Science and Technology, 37, no. 2 (2023):697-706,
https://doi.org/10.1007/s12206-023-0113-6 . .
7

The influence of printing orientation on the flexural strength of PA 12 specimens produced by SLS

Jevtić, Ivana; Mladenović, Goran; Milovanović, Aleksa; Trajković, Isaak; Đurković, Marija; Korolija, Nenad; Milošević, Miloš

(2023)

TY  - JOUR
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milovanović, Aleksa
AU  - Trajković, Isaak
AU  - Đurković, Marija
AU  - Korolija, Nenad
AU  - Milošević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7423
AB  - This article aims to investigate the mechanical characteristics of specimens fabricated using Selective Laser Sintering technology. The research covers flexural specimens, produced by PA12 materials. CAD model dimensions were selected according to the ISO 178 standard, and the chosen specimen geometry is 96 x 8 x 4 [mm] in bulk. All specimens were produced using a specialized machine Fuse 1 (FormLabs, Summerville, MA). Four specimen batches were produced, each with a different printing orientation (i.e. vertical and horizontal) and location on the printing plate (i.e. in the middle and on the edge of the powder bed). The specimens are tested using a Shimadzu universal machine for testing the mechanical characteristics of materials, AGS-X 100 kN, with a unique additional tool for testing 3-point bending specimens.
T2  - Science of Sintering
T1  - The influence of printing orientation on the flexural strength of PA 12 specimens produced by SLS
DO  - 10.2298/SOS230508031J
ER  - 
@article{
author = "Jevtić, Ivana and Mladenović, Goran and Milovanović, Aleksa and Trajković, Isaak and Đurković, Marija and Korolija, Nenad and Milošević, Miloš",
year = "2023",
abstract = "This article aims to investigate the mechanical characteristics of specimens fabricated using Selective Laser Sintering technology. The research covers flexural specimens, produced by PA12 materials. CAD model dimensions were selected according to the ISO 178 standard, and the chosen specimen geometry is 96 x 8 x 4 [mm] in bulk. All specimens were produced using a specialized machine Fuse 1 (FormLabs, Summerville, MA). Four specimen batches were produced, each with a different printing orientation (i.e. vertical and horizontal) and location on the printing plate (i.e. in the middle and on the edge of the powder bed). The specimens are tested using a Shimadzu universal machine for testing the mechanical characteristics of materials, AGS-X 100 kN, with a unique additional tool for testing 3-point bending specimens.",
journal = "Science of Sintering",
title = "The influence of printing orientation on the flexural strength of PA 12 specimens produced by SLS",
doi = "10.2298/SOS230508031J"
}
Jevtić, I., Mladenović, G., Milovanović, A., Trajković, I., Đurković, M., Korolija, N.,& Milošević, M.. (2023). The influence of printing orientation on the flexural strength of PA 12 specimens produced by SLS. in Science of Sintering.
https://doi.org/10.2298/SOS230508031J
Jevtić I, Mladenović G, Milovanović A, Trajković I, Đurković M, Korolija N, Milošević M. The influence of printing orientation on the flexural strength of PA 12 specimens produced by SLS. in Science of Sintering. 2023;.
doi:10.2298/SOS230508031J .
Jevtić, Ivana, Mladenović, Goran, Milovanović, Aleksa, Trajković, Isaak, Đurković, Marija, Korolija, Nenad, Milošević, Miloš, "The influence of printing orientation on the flexural strength of PA 12 specimens produced by SLS" in Science of Sintering (2023),
https://doi.org/10.2298/SOS230508031J . .

Force prediction models in ball end milling of freeform surfaces

Stojanović, Jagoš; Mladenović, Goran; Tanasković, Jovan; Pjević, Miloš

(University of Belgrade – Faculty of Mechanical Engineering, 2023)

TY  - CONF
AU  - Stojanović, Jagoš
AU  - Mladenović, Goran
AU  - Tanasković, Jovan
AU  - Pjević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6904
AB  - Simulating the process of NC milling of freeform surfaces is of fundamental importance in computer aided manufacturing (CAM). In order to accurately predict cutting force in sculptured surface machining with ball end mill, tool posture, cutting edge, contact state between cutter, and workpiece are studied. Cutting force prediction is very important to optimize machining parameters, monitor the machining state and to reduce the possibility of tool breakage. In order to predict the cutting force of surface machining with a ball end mill, different materials and geometry of the tool/workpiece are studied. In this paper, the state of the art is presented in the field of force prediction in ball end milling and the advantages of different methods for determining the cutter-workpiece engagement. The research for cutter-workpiece engagement (CWE) under different cutting conditions is mainly divided into three types: solid modeling, discrete representation, and analytical methods. The resulting surface quality after machining with a ball end cutter is of great importance because finished milling is often the last process step determining the functional performance of a component.
PB  - University of Belgrade – Faculty of Mechanical Engineering
C3  - 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07
T1  - Force prediction models in ball end milling of freeform surfaces
EP  - 64
SP  - 64
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6904
ER  - 
@conference{
author = "Stojanović, Jagoš and Mladenović, Goran and Tanasković, Jovan and Pjević, Miloš",
year = "2023",
abstract = "Simulating the process of NC milling of freeform surfaces is of fundamental importance in computer aided manufacturing (CAM). In order to accurately predict cutting force in sculptured surface machining with ball end mill, tool posture, cutting edge, contact state between cutter, and workpiece are studied. Cutting force prediction is very important to optimize machining parameters, monitor the machining state and to reduce the possibility of tool breakage. In order to predict the cutting force of surface machining with a ball end mill, different materials and geometry of the tool/workpiece are studied. In this paper, the state of the art is presented in the field of force prediction in ball end milling and the advantages of different methods for determining the cutter-workpiece engagement. The research for cutter-workpiece engagement (CWE) under different cutting conditions is mainly divided into three types: solid modeling, discrete representation, and analytical methods. The resulting surface quality after machining with a ball end cutter is of great importance because finished milling is often the last process step determining the functional performance of a component.",
publisher = "University of Belgrade – Faculty of Mechanical Engineering",
journal = "7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07",
title = "Force prediction models in ball end milling of freeform surfaces",
pages = "64-64",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6904"
}
Stojanović, J., Mladenović, G., Tanasković, J.,& Pjević, M.. (2023). Force prediction models in ball end milling of freeform surfaces. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07
University of Belgrade – Faculty of Mechanical Engineering., 64-64.
https://hdl.handle.net/21.15107/rcub_machinery_6904
Stojanović J, Mladenović G, Tanasković J, Pjević M. Force prediction models in ball end milling of freeform surfaces. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07. 2023;:64-64.
https://hdl.handle.net/21.15107/rcub_machinery_6904 .
Stojanović, Jagoš, Mladenović, Goran, Tanasković, Jovan, Pjević, Miloš, "Force prediction models in ball end milling of freeform surfaces" in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07 (2023):64-64,
https://hdl.handle.net/21.15107/rcub_machinery_6904 .

Aplication of rough machining with ball end mill cutter in 3 axis free form surface manufacturing

Mladenović, Goran; Stojanović, Jagoš; Puzović, Radovan; Popović, Mihajlo; Pjević, Miloš

(University of Belgrade – Faculty of Mechanical Engineering, 2023)

TY  - CONF
AU  - Mladenović, Goran
AU  - Stojanović, Jagoš
AU  - Puzović, Radovan
AU  - Popović, Mihajlo
AU  - Pjević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6903
AB  - The ball end cutter is a commonly used tool for rough machining free-form surfaces. This paper presents a procedure for rough machining parts with free-form surfaces on 3-axis machines. To achieve this, a model for predicting cutting forces is developed and implemented in a software solution for automatic technology design. This software solution has been previously tested and described. The procedure enables the optimal utilization of the tool while considering the maximum allowed cutting force for the selected tool diameter. The tool diameter is automatically determined based on the analysis of the surface geometry and is chosen to be smaller or equal to the minimum surface radius. The software solution includes an input of the part CAD model in STL file format and a tool database specific to the machine used. After upgrading the software with new strategies for rough machining, the generated NC code was tested on a CNC machine, and manufacturing was performed within the specified tolerances and surface roughness. The research was conducted at the Department of Production Engineering at the Faculty of Mechanical Engineering in Belgrade, where this topic has been actively studied for many years and is still under development. The described software solution is beneficial as it allows users to operate with minimal knowledge of CAM systems.
PB  - University of Belgrade – Faculty of Mechanical Engineering
C3  - 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07
T1  - Aplication of rough machining with ball end mill cutter in 3 axis free form surface manufacturing
EP  - 61
SP  - 61
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6903
ER  - 
@conference{
author = "Mladenović, Goran and Stojanović, Jagoš and Puzović, Radovan and Popović, Mihajlo and Pjević, Miloš",
year = "2023",
abstract = "The ball end cutter is a commonly used tool for rough machining free-form surfaces. This paper presents a procedure for rough machining parts with free-form surfaces on 3-axis machines. To achieve this, a model for predicting cutting forces is developed and implemented in a software solution for automatic technology design. This software solution has been previously tested and described. The procedure enables the optimal utilization of the tool while considering the maximum allowed cutting force for the selected tool diameter. The tool diameter is automatically determined based on the analysis of the surface geometry and is chosen to be smaller or equal to the minimum surface radius. The software solution includes an input of the part CAD model in STL file format and a tool database specific to the machine used. After upgrading the software with new strategies for rough machining, the generated NC code was tested on a CNC machine, and manufacturing was performed within the specified tolerances and surface roughness. The research was conducted at the Department of Production Engineering at the Faculty of Mechanical Engineering in Belgrade, where this topic has been actively studied for many years and is still under development. The described software solution is beneficial as it allows users to operate with minimal knowledge of CAM systems.",
publisher = "University of Belgrade – Faculty of Mechanical Engineering",
journal = "7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07",
title = "Aplication of rough machining with ball end mill cutter in 3 axis free form surface manufacturing",
pages = "61-61",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6903"
}
Mladenović, G., Stojanović, J., Puzović, R., Popović, M.,& Pjević, M.. (2023). Aplication of rough machining with ball end mill cutter in 3 axis free form surface manufacturing. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07
University of Belgrade – Faculty of Mechanical Engineering., 61-61.
https://hdl.handle.net/21.15107/rcub_machinery_6903
Mladenović G, Stojanović J, Puzović R, Popović M, Pjević M. Aplication of rough machining with ball end mill cutter in 3 axis free form surface manufacturing. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07. 2023;:61-61.
https://hdl.handle.net/21.15107/rcub_machinery_6903 .
Mladenović, Goran, Stojanović, Jagoš, Puzović, Radovan, Popović, Mihajlo, Pjević, Miloš, "Aplication of rough machining with ball end mill cutter in 3 axis free form surface manufacturing" in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07 (2023):61-61,
https://hdl.handle.net/21.15107/rcub_machinery_6903 .

The influence of print orientation and print location on the mechanical characteristics of specimens obtained by SLS technology

Jevtić, Ivana; Mladenović, Goran; Milošević, Miloš; Milovanović, Aleksa; Trajković, Isaak

(Serbian Ceramic Society, 2023)

TY  - CONF
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milošević, Miloš
AU  - Milovanović, Aleksa
AU  - Trajković, Isaak
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7012
AB  - SLS technology has become popular in various industries due to its ability to produce
complex components with less effort than traditional methods. The study used PA 12, a
commonly used material in SLS printing, to create three types of specimens that were tested
for their mechanical characteristics. The specimens were designed based on ISO standards
(i.e. ISO 178, ISO 527-2, ISO 604) and printed on the Fuse 1 (FormLabs, Summerville, MA)
3D printer in four batches. These batches differed according to the printing orientation (i.e.
horizontal and vertical) and the printing location (i.e. in the middle and on the edge of the
powder bed). The printed specimens were then tested on subjected to a standard tensile
testing machine (SHIMADZU AGS-X 100kN).
The study found that the specimens printed according to ISO 178 standard vertically in the
middle of the powder bed had the smallest deviations in mechanical characteristics. On the
other hand, the specimens printed based on ISO 604 standard had the biggest deviations.
These findings suggest that the printing orientation and location on the powder bed can affect
the mechanical properties of SLS-printed components
PB  - Serbian Ceramic Society
C3  - Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI
T1  - The influence of print orientation and print location on the mechanical characteristics of specimens obtained by SLS technology
EP  - 82
SP  - 82
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7012
ER  - 
@conference{
author = "Jevtić, Ivana and Mladenović, Goran and Milošević, Miloš and Milovanović, Aleksa and Trajković, Isaak",
year = "2023",
abstract = "SLS technology has become popular in various industries due to its ability to produce
complex components with less effort than traditional methods. The study used PA 12, a
commonly used material in SLS printing, to create three types of specimens that were tested
for their mechanical characteristics. The specimens were designed based on ISO standards
(i.e. ISO 178, ISO 527-2, ISO 604) and printed on the Fuse 1 (FormLabs, Summerville, MA)
3D printer in four batches. These batches differed according to the printing orientation (i.e.
horizontal and vertical) and the printing location (i.e. in the middle and on the edge of the
powder bed). The printed specimens were then tested on subjected to a standard tensile
testing machine (SHIMADZU AGS-X 100kN).
The study found that the specimens printed according to ISO 178 standard vertically in the
middle of the powder bed had the smallest deviations in mechanical characteristics. On the
other hand, the specimens printed based on ISO 604 standard had the biggest deviations.
These findings suggest that the printing orientation and location on the powder bed can affect
the mechanical properties of SLS-printed components",
publisher = "Serbian Ceramic Society",
journal = "Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI",
title = "The influence of print orientation and print location on the mechanical characteristics of specimens obtained by SLS technology",
pages = "82-82",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7012"
}
Jevtić, I., Mladenović, G., Milošević, M., Milovanović, A.,& Trajković, I.. (2023). The influence of print orientation and print location on the mechanical characteristics of specimens obtained by SLS technology. in Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI
Serbian Ceramic Society., 82-82.
https://hdl.handle.net/21.15107/rcub_machinery_7012
Jevtić I, Mladenović G, Milošević M, Milovanović A, Trajković I. The influence of print orientation and print location on the mechanical characteristics of specimens obtained by SLS technology. in Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI. 2023;:82-82.
https://hdl.handle.net/21.15107/rcub_machinery_7012 .
Jevtić, Ivana, Mladenović, Goran, Milošević, Miloš, Milovanović, Aleksa, Trajković, Isaak, "The influence of print orientation and print location on the mechanical characteristics of specimens obtained by SLS technology" in Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI (2023):82-82,
https://hdl.handle.net/21.15107/rcub_machinery_7012 .

Printing orientation influence on tensile strength of PA12 specimens obtained by SLS

Jevtić, Ivana; Golubović, Zorana; Mladenović, Goran; Berto, Filippo; Sedmak, Aleksandar; Milovanović, Aleksa; Milošević, Miloš

(Springer, 2023)

TY  - JOUR
AU  - Jevtić, Ivana
AU  - Golubović, Zorana
AU  - Mladenović, Goran
AU  - Berto, Filippo
AU  - Sedmak, Aleksandar
AU  - Milovanović, Aleksa
AU  - Milošević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7011
AB  - Selective laser sintering (SLS) is one of the additive manufacturing technologies dedicated to the production of high-quality parts with complex geometries. Here, polyamide 12 (PA12) is a commonly used material, for manufacturing parts with sufficient mechanical and thermal properties. In SLS, many manufacturing parameters have an effect on the mechanical properties of final parts. Even the decision regarding the orientation of a part in a powder bed may have a significant effect on the mechanical properties. In this research, the influence of horizontal (H) and vertical (V) printing orientations on the ultimate tensile strength (UTS) of fabricated PA12 specimens are examined. Our research findings show that H specimens exhibit larger deformations and smaller UTS value scatter in comparison with V specimens. Also, worth pointing out is the fact that V-oriented specimens have a higher elastic modulus. One can assume that the sintering process is more effective in V specimens, due to a more uniform laser beam trajectory than in the H specimens' case.
PB  - Springer
T2  - Journal of Mechanical and Technology
T1  - Printing orientation influence on tensile strength of PA12 specimens obtained by SLS
EP  - 6
IS  - 11
SP  - 1
VL  - 37
DO  - 10.1007/s12206-023-2306-4
ER  - 
@article{
author = "Jevtić, Ivana and Golubović, Zorana and Mladenović, Goran and Berto, Filippo and Sedmak, Aleksandar and Milovanović, Aleksa and Milošević, Miloš",
year = "2023",
abstract = "Selective laser sintering (SLS) is one of the additive manufacturing technologies dedicated to the production of high-quality parts with complex geometries. Here, polyamide 12 (PA12) is a commonly used material, for manufacturing parts with sufficient mechanical and thermal properties. In SLS, many manufacturing parameters have an effect on the mechanical properties of final parts. Even the decision regarding the orientation of a part in a powder bed may have a significant effect on the mechanical properties. In this research, the influence of horizontal (H) and vertical (V) printing orientations on the ultimate tensile strength (UTS) of fabricated PA12 specimens are examined. Our research findings show that H specimens exhibit larger deformations and smaller UTS value scatter in comparison with V specimens. Also, worth pointing out is the fact that V-oriented specimens have a higher elastic modulus. One can assume that the sintering process is more effective in V specimens, due to a more uniform laser beam trajectory than in the H specimens' case.",
publisher = "Springer",
journal = "Journal of Mechanical and Technology",
title = "Printing orientation influence on tensile strength of PA12 specimens obtained by SLS",
pages = "6-1",
number = "11",
volume = "37",
doi = "10.1007/s12206-023-2306-4"
}
Jevtić, I., Golubović, Z., Mladenović, G., Berto, F., Sedmak, A., Milovanović, A.,& Milošević, M.. (2023). Printing orientation influence on tensile strength of PA12 specimens obtained by SLS. in Journal of Mechanical and Technology
Springer., 37(11), 1-6.
https://doi.org/10.1007/s12206-023-2306-4
Jevtić I, Golubović Z, Mladenović G, Berto F, Sedmak A, Milovanović A, Milošević M. Printing orientation influence on tensile strength of PA12 specimens obtained by SLS. in Journal of Mechanical and Technology. 2023;37(11):1-6.
doi:10.1007/s12206-023-2306-4 .
Jevtić, Ivana, Golubović, Zorana, Mladenović, Goran, Berto, Filippo, Sedmak, Aleksandar, Milovanović, Aleksa, Milošević, Miloš, "Printing orientation influence on tensile strength of PA12 specimens obtained by SLS" in Journal of Mechanical and Technology, 37, no. 11 (2023):1-6,
https://doi.org/10.1007/s12206-023-2306-4 . .
2

SIMULATION, ANALYSIS AND OPTIMIZATION OF FORGING PROCESS FOR AXISYMMETRIC PART

Popović, Mihajlo; Furtula, Marko; Pjević, Miloš; Mladenović, Goran

(UNIVERSITY OF NOVI SAD, FACULTY OF TECHNICAL SCIENCES DEPARTMENT OF PRODUCTION ENGINEERING DEPARTMENT OF INDUSTRIAL ENGINEERING AND ENGINEERING MANAGEMENT, 2023)

TY  - CONF
AU  - Popović, Mihajlo
AU  - Furtula, Marko
AU  - Pjević, Miloš
AU  - Mladenović, Goran
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7255
AB  - Forging, as a type of technological process based on metal forming, is widely used in the modern
manufacturing industry. This paper is focused on the utilization of CAE software tools for simulating the forging process of an aluminium piston. The starting point for designing the technological process was a technical drawing of the machined piston. After determining forging tolerances, parting lines, forging angles, radii, and flash land, the forging part and forging dies were designed. The forging process in this particular case encompasses three metal-forming operations: upsetting, final forging, and trimming of the flash. The proposed technological solution was verified using the CAE software tool - QForm through various simulations of material behaviour during the forging process. The analysis included material flow, potential defects, as well as temperature and stress within the workpiece. After making a few adjustments to the forging design and parameters, the optimal solution was presented. Temperature and stress distributions in the best-case scenario were within an acceptable range, while the risk of surface defects and material flow abnormalities was very low. This paper demonstrates that the use of software tools for numerical simulations during the design of the forging technological process provides significant benefits, such as reducing production costs, improving product quality, minimizing scrap, saving time in product development, and reducing the number of required test samples.
PB  - UNIVERSITY OF NOVI SAD, FACULTY OF TECHNICAL SCIENCES DEPARTMENT OF PRODUCTION ENGINEERING DEPARTMENT OF INDUSTRIAL ENGINEERING AND ENGINEERING MANAGEMENT
C3  - Proceedings - 39th International Conference on production Engineering of Serbia – ICPES 2023
T1  - SIMULATION, ANALYSIS AND OPTIMIZATION OF FORGING PROCESS FOR AXISYMMETRIC PART
EP  - 258
SP  - 252
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7255
ER  - 
@conference{
author = "Popović, Mihajlo and Furtula, Marko and Pjević, Miloš and Mladenović, Goran",
year = "2023",
abstract = "Forging, as a type of technological process based on metal forming, is widely used in the modern
manufacturing industry. This paper is focused on the utilization of CAE software tools for simulating the forging process of an aluminium piston. The starting point for designing the technological process was a technical drawing of the machined piston. After determining forging tolerances, parting lines, forging angles, radii, and flash land, the forging part and forging dies were designed. The forging process in this particular case encompasses three metal-forming operations: upsetting, final forging, and trimming of the flash. The proposed technological solution was verified using the CAE software tool - QForm through various simulations of material behaviour during the forging process. The analysis included material flow, potential defects, as well as temperature and stress within the workpiece. After making a few adjustments to the forging design and parameters, the optimal solution was presented. Temperature and stress distributions in the best-case scenario were within an acceptable range, while the risk of surface defects and material flow abnormalities was very low. This paper demonstrates that the use of software tools for numerical simulations during the design of the forging technological process provides significant benefits, such as reducing production costs, improving product quality, minimizing scrap, saving time in product development, and reducing the number of required test samples.",
publisher = "UNIVERSITY OF NOVI SAD, FACULTY OF TECHNICAL SCIENCES DEPARTMENT OF PRODUCTION ENGINEERING DEPARTMENT OF INDUSTRIAL ENGINEERING AND ENGINEERING MANAGEMENT",
journal = "Proceedings - 39th International Conference on production Engineering of Serbia – ICPES 2023",
title = "SIMULATION, ANALYSIS AND OPTIMIZATION OF FORGING PROCESS FOR AXISYMMETRIC PART",
pages = "258-252",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7255"
}
Popović, M., Furtula, M., Pjević, M.,& Mladenović, G.. (2023). SIMULATION, ANALYSIS AND OPTIMIZATION OF FORGING PROCESS FOR AXISYMMETRIC PART. in Proceedings - 39th International Conference on production Engineering of Serbia – ICPES 2023
UNIVERSITY OF NOVI SAD, FACULTY OF TECHNICAL SCIENCES DEPARTMENT OF PRODUCTION ENGINEERING DEPARTMENT OF INDUSTRIAL ENGINEERING AND ENGINEERING MANAGEMENT., 252-258.
https://hdl.handle.net/21.15107/rcub_machinery_7255
Popović M, Furtula M, Pjević M, Mladenović G. SIMULATION, ANALYSIS AND OPTIMIZATION OF FORGING PROCESS FOR AXISYMMETRIC PART. in Proceedings - 39th International Conference on production Engineering of Serbia – ICPES 2023. 2023;:252-258.
https://hdl.handle.net/21.15107/rcub_machinery_7255 .
Popović, Mihajlo, Furtula, Marko, Pjević, Miloš, Mladenović, Goran, "SIMULATION, ANALYSIS AND OPTIMIZATION OF FORGING PROCESS FOR AXISYMMETRIC PART" in Proceedings - 39th International Conference on production Engineering of Serbia – ICPES 2023 (2023):252-258,
https://hdl.handle.net/21.15107/rcub_machinery_7255 .

Design of MULTIPRODESK: Multifunctional rapid prototyping desktop machine

Živanović, Saša; Vorkapić, Nikola; Slavković, Nikola; Dimić, Zoran; Vidaković, Jelena

(University of Belgrade - Faculty of Mechanical Engineering, 2023)

TY  - CONF
AU  - Živanović, Saša
AU  - Vorkapić, Nikola
AU  - Slavković, Nikola
AU  - Dimić, Zoran
AU  - Vidaković, Jelena
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7135
AB  - Rapid prototyping technology has emerged as one of the most significant technologies that enable the reduction of the product development and production times. The novel low-cost desktop multifunctional machine tool, able to support additive and subtractive manufacturing of symmetrical and asymmetrical cylindrical parts, is presented. The core of the invention is the new concept of the machine tool with a horizontal rotating device chuck (3-axis rotary CNC) as a multifunctional rapid prototyping machine. The specific concept of the machine’s geometry enabled reconfigurability, i.e., the simple change of tools for the unique combination of three production technologies on one desktop machine: milling, laser engraving, and rotary 3D printing. Open-source control infrastructure enables end-user customization and machine upgradeability and achieves cost-effectiveness. Innovative design enables additional technological advantages in the desktop rapid prototyping machine tools domain, such as: 1) the possibility of the production of a single cylindrical part completely in one clamping by using a combination of additive and subtractive manufacturing (which achieves effective use of material, energy, and reduced time consumption, increased productivity, increased accuracy); 2) modularity and the open architecture control structure which allows for upgradeability and further development of the machine according to end-user needs (possibility to add supplementary axes per users’ demands; 3) digital twin technology. MultiProDesk is a valuable production tool for SMEs in various production technologies where it allows users to adopt mass customization concepts and to reach mass personalization production (as a step to Industry 4.0).
PB  - University of Belgrade - Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies, CNN TECH 2023 - The Book of Abstracts, Zlatibor, Serbia, 04-07 July.
T1  - Design of MULTIPRODESK: Multifunctional rapid prototyping desktop machine
SP  - 12
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7135
ER  - 
@conference{
author = "Živanović, Saša and Vorkapić, Nikola and Slavković, Nikola and Dimić, Zoran and Vidaković, Jelena",
year = "2023",
abstract = "Rapid prototyping technology has emerged as one of the most significant technologies that enable the reduction of the product development and production times. The novel low-cost desktop multifunctional machine tool, able to support additive and subtractive manufacturing of symmetrical and asymmetrical cylindrical parts, is presented. The core of the invention is the new concept of the machine tool with a horizontal rotating device chuck (3-axis rotary CNC) as a multifunctional rapid prototyping machine. The specific concept of the machine’s geometry enabled reconfigurability, i.e., the simple change of tools for the unique combination of three production technologies on one desktop machine: milling, laser engraving, and rotary 3D printing. Open-source control infrastructure enables end-user customization and machine upgradeability and achieves cost-effectiveness. Innovative design enables additional technological advantages in the desktop rapid prototyping machine tools domain, such as: 1) the possibility of the production of a single cylindrical part completely in one clamping by using a combination of additive and subtractive manufacturing (which achieves effective use of material, energy, and reduced time consumption, increased productivity, increased accuracy); 2) modularity and the open architecture control structure which allows for upgradeability and further development of the machine according to end-user needs (possibility to add supplementary axes per users’ demands; 3) digital twin technology. MultiProDesk is a valuable production tool for SMEs in various production technologies where it allows users to adopt mass customization concepts and to reach mass personalization production (as a step to Industry 4.0).",
publisher = "University of Belgrade - Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies, CNN TECH 2023 - The Book of Abstracts, Zlatibor, Serbia, 04-07 July.",
title = "Design of MULTIPRODESK: Multifunctional rapid prototyping desktop machine",
pages = "12",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7135"
}
Živanović, S., Vorkapić, N., Slavković, N., Dimić, Z.,& Vidaković, J.. (2023). Design of MULTIPRODESK: Multifunctional rapid prototyping desktop machine. in International Conference of Experimental and Numerical Investigations and New Technologies, CNN TECH 2023 - The Book of Abstracts, Zlatibor, Serbia, 04-07 July.
University of Belgrade - Faculty of Mechanical Engineering., 12.
https://hdl.handle.net/21.15107/rcub_machinery_7135
Živanović S, Vorkapić N, Slavković N, Dimić Z, Vidaković J. Design of MULTIPRODESK: Multifunctional rapid prototyping desktop machine. in International Conference of Experimental and Numerical Investigations and New Technologies, CNN TECH 2023 - The Book of Abstracts, Zlatibor, Serbia, 04-07 July.. 2023;:12.
https://hdl.handle.net/21.15107/rcub_machinery_7135 .
Živanović, Saša, Vorkapić, Nikola, Slavković, Nikola, Dimić, Zoran, Vidaković, Jelena, "Design of MULTIPRODESK: Multifunctional rapid prototyping desktop machine" in International Conference of Experimental and Numerical Investigations and New Technologies, CNN TECH 2023 - The Book of Abstracts, Zlatibor, Serbia, 04-07 July. (2023):12,
https://hdl.handle.net/21.15107/rcub_machinery_7135 .

An approach for automatic free form surface milling machining technology design

Mladenović, Goran; Puzović, Radovan; Stojanović, Jagoš; Jevtić, Ivana; Popović, Mihajlo; Pjević, Miloš

(UNIVERSITY OF NOVI SAD, FACULTY OF TECHNICAL SCIENCES, 2023)

TY  - CONF
AU  - Mladenović, Goran
AU  - Puzović, Radovan
AU  - Stojanović, Jagoš
AU  - Jevtić, Ivana
AU  - Popović, Mihajlo
AU  - Pjević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7113
AB  - Parts with free form surfaces are commonly used in wide area of engineering, not only in mechanical
engineering. When it comes to the area of mechanical engineering, the main problem is how to produce such
parts. One of the commonly used methods is milling with ball end mill cutter on 3, 4 or 5 axis mill machines.
A usual approach for production of such parts is to generate NC code in some of commercial CAM software
and afterwards load it on CNC machine. In this paper is presented the software for automatic technology
design which is developed at the department of production engineering of the Faculty of Mechanical
engineering in Belgrade, Serbia. Based on loaded CAD models of the final product and workpiece which will
be used for production software automatically gives the NC code for machining according to implemented
machining strategies. The core of software is a module for machining simulation process which allow
multicriteria optimization method for machining. Verification of the generated NC code was done on
horizontal machining center and after that measurement of machined part where was verified quality of
machined part in predefined tolerances
PB  - UNIVERSITY OF NOVI SAD, FACULTY OF TECHNICAL SCIENCES
C3  - 39th INTERNATIONAL CONFERENCE ON PRODUCTION ENGINEERING OF SERBIA - ICPES 2023
T1  - An approach for automatic free form surface milling machining technology design
EP  - 230
SP  - 227
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7113
ER  - 
@conference{
author = "Mladenović, Goran and Puzović, Radovan and Stojanović, Jagoš and Jevtić, Ivana and Popović, Mihajlo and Pjević, Miloš",
year = "2023",
abstract = "Parts with free form surfaces are commonly used in wide area of engineering, not only in mechanical
engineering. When it comes to the area of mechanical engineering, the main problem is how to produce such
parts. One of the commonly used methods is milling with ball end mill cutter on 3, 4 or 5 axis mill machines.
A usual approach for production of such parts is to generate NC code in some of commercial CAM software
and afterwards load it on CNC machine. In this paper is presented the software for automatic technology
design which is developed at the department of production engineering of the Faculty of Mechanical
engineering in Belgrade, Serbia. Based on loaded CAD models of the final product and workpiece which will
be used for production software automatically gives the NC code for machining according to implemented
machining strategies. The core of software is a module for machining simulation process which allow
multicriteria optimization method for machining. Verification of the generated NC code was done on
horizontal machining center and after that measurement of machined part where was verified quality of
machined part in predefined tolerances",
publisher = "UNIVERSITY OF NOVI SAD, FACULTY OF TECHNICAL SCIENCES",
journal = "39th INTERNATIONAL CONFERENCE ON PRODUCTION ENGINEERING OF SERBIA - ICPES 2023",
title = "An approach for automatic free form surface milling machining technology design",
pages = "230-227",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7113"
}
Mladenović, G., Puzović, R., Stojanović, J., Jevtić, I., Popović, M.,& Pjević, M.. (2023). An approach for automatic free form surface milling machining technology design. in 39th INTERNATIONAL CONFERENCE ON PRODUCTION ENGINEERING OF SERBIA - ICPES 2023
UNIVERSITY OF NOVI SAD, FACULTY OF TECHNICAL SCIENCES., 227-230.
https://hdl.handle.net/21.15107/rcub_machinery_7113
Mladenović G, Puzović R, Stojanović J, Jevtić I, Popović M, Pjević M. An approach for automatic free form surface milling machining technology design. in 39th INTERNATIONAL CONFERENCE ON PRODUCTION ENGINEERING OF SERBIA - ICPES 2023. 2023;:227-230.
https://hdl.handle.net/21.15107/rcub_machinery_7113 .
Mladenović, Goran, Puzović, Radovan, Stojanović, Jagoš, Jevtić, Ivana, Popović, Mihajlo, Pjević, Miloš, "An approach for automatic free form surface milling machining technology design" in 39th INTERNATIONAL CONFERENCE ON PRODUCTION ENGINEERING OF SERBIA - ICPES 2023 (2023):227-230,
https://hdl.handle.net/21.15107/rcub_machinery_7113 .

Upgraded cherenkov time-of-flight detector for the afp project

Nozga, Libor; Avoni, Giulio; Banas, Elzbieta; Brandt, Andrew; Cerny, Karel; Davis, Paul; Pinto, Serge Duarte; Georgiev, Vjaceslav; Hrabovsky, Miroslav; Komarek, Tomas; Korcyl, Krzysztof; Lopez-Paz, Ivan; Milovanovic, Marko; Mladenović, Goran; Orlov, Dmitry; Rijssenbeek, Michael; Schovanek, Petr; Sykora, Tomas; Trzebinski, Maciej; Urbasek, Vladimir; Zich, Jan

(Optica Publishing Group, 2023)

TY  - JOUR
AU  - Nozga, Libor
AU  - Avoni, Giulio
AU  - Banas, Elzbieta
AU  - Brandt, Andrew
AU  - Cerny, Karel
AU  - Davis, Paul
AU  - Pinto, Serge Duarte
AU  - Georgiev, Vjaceslav
AU  - Hrabovsky, Miroslav
AU  - Komarek, Tomas
AU  - Korcyl, Krzysztof
AU  - Lopez-Paz, Ivan
AU  - Milovanovic, Marko
AU  - Mladenović, Goran
AU  - Orlov, Dmitry
AU  - Rijssenbeek, Michael
AU  - Schovanek, Petr
AU  - Sykora, Tomas
AU  - Trzebinski, Maciej
AU  - Urbasek, Vladimir
AU  - Zich, Jan
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6907
AB  - We present the results of our performance studies of the upgraded Cherenkov time-of-flight (ToF) detector for the AFP (ATLAS Forward Proton) project. The latest version consists of solid L-shaped fused silica bars, new customized ALD-coated micro-channel plate photomultipliers (MCP-PMTs) miniPlanacon XPM85112-S-R2D2 with an extended lifetime which operate at low gains (order of 103), and an updated construction. The improvements were aimed to increase the efficiency, the lifetime as well as the radiation hardness of the detector which has been designed to operate in high radiation areas (above 400 kGy/year). The detector was finally tested at the CERN-SPS test-beam facility (120 GeV π+ particles) in August 2021 prior to its installation at the Large Hadron Collider (LHC) at CERN. Measurements proved the detector kept its inner timing resolution of 20 ps despite the rather low gain of its photodetector and reduced optical throughput caused by inevitable changes in the detector geometry.
PB  - Optica Publishing Group
T2  - Optics Express
T1  - Upgraded cherenkov time-of-flight detector for the afp project
EP  - 4014
IS  - 3
SP  - 3998
VL  - 31
DO  - 10.1364/OE.480624
ER  - 
@article{
author = "Nozga, Libor and Avoni, Giulio and Banas, Elzbieta and Brandt, Andrew and Cerny, Karel and Davis, Paul and Pinto, Serge Duarte and Georgiev, Vjaceslav and Hrabovsky, Miroslav and Komarek, Tomas and Korcyl, Krzysztof and Lopez-Paz, Ivan and Milovanovic, Marko and Mladenović, Goran and Orlov, Dmitry and Rijssenbeek, Michael and Schovanek, Petr and Sykora, Tomas and Trzebinski, Maciej and Urbasek, Vladimir and Zich, Jan",
year = "2023",
abstract = "We present the results of our performance studies of the upgraded Cherenkov time-of-flight (ToF) detector for the AFP (ATLAS Forward Proton) project. The latest version consists of solid L-shaped fused silica bars, new customized ALD-coated micro-channel plate photomultipliers (MCP-PMTs) miniPlanacon XPM85112-S-R2D2 with an extended lifetime which operate at low gains (order of 103), and an updated construction. The improvements were aimed to increase the efficiency, the lifetime as well as the radiation hardness of the detector which has been designed to operate in high radiation areas (above 400 kGy/year). The detector was finally tested at the CERN-SPS test-beam facility (120 GeV π+ particles) in August 2021 prior to its installation at the Large Hadron Collider (LHC) at CERN. Measurements proved the detector kept its inner timing resolution of 20 ps despite the rather low gain of its photodetector and reduced optical throughput caused by inevitable changes in the detector geometry.",
publisher = "Optica Publishing Group",
journal = "Optics Express",
title = "Upgraded cherenkov time-of-flight detector for the afp project",
pages = "4014-3998",
number = "3",
volume = "31",
doi = "10.1364/OE.480624"
}
Nozga, L., Avoni, G., Banas, E., Brandt, A., Cerny, K., Davis, P., Pinto, S. D., Georgiev, V., Hrabovsky, M., Komarek, T., Korcyl, K., Lopez-Paz, I., Milovanovic, M., Mladenović, G., Orlov, D., Rijssenbeek, M., Schovanek, P., Sykora, T., Trzebinski, M., Urbasek, V.,& Zich, J.. (2023). Upgraded cherenkov time-of-flight detector for the afp project. in Optics Express
Optica Publishing Group., 31(3), 3998-4014.
https://doi.org/10.1364/OE.480624
Nozga L, Avoni G, Banas E, Brandt A, Cerny K, Davis P, Pinto SD, Georgiev V, Hrabovsky M, Komarek T, Korcyl K, Lopez-Paz I, Milovanovic M, Mladenović G, Orlov D, Rijssenbeek M, Schovanek P, Sykora T, Trzebinski M, Urbasek V, Zich J. Upgraded cherenkov time-of-flight detector for the afp project. in Optics Express. 2023;31(3):3998-4014.
doi:10.1364/OE.480624 .
Nozga, Libor, Avoni, Giulio, Banas, Elzbieta, Brandt, Andrew, Cerny, Karel, Davis, Paul, Pinto, Serge Duarte, Georgiev, Vjaceslav, Hrabovsky, Miroslav, Komarek, Tomas, Korcyl, Krzysztof, Lopez-Paz, Ivan, Milovanovic, Marko, Mladenović, Goran, Orlov, Dmitry, Rijssenbeek, Michael, Schovanek, Petr, Sykora, Tomas, Trzebinski, Maciej, Urbasek, Vladimir, Zich, Jan, "Upgraded cherenkov time-of-flight detector for the afp project" in Optics Express, 31, no. 3 (2023):3998-4014,
https://doi.org/10.1364/OE.480624 . .

Mechanical characteristics of compressive specimens obtained by SLS technology

Jevtić, Ivana; Mladenović, Goran; Milošević, Miloš; Milovanović, Aleksa

(2023)

TY  - CONF
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milošević, Miloš
AU  - Milovanović, Aleksa
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7086
AB  - The purpose of this research is to investigate the mechanical properties of Additive Manufacturing(AM)parts. The 3D printer used in this study is Fuse 1 (FormLabs, Summerville, MA), which utilizes theSLS(Selective Laser Sintering) technology. This technology allows the production of objects with different shapesand dimensions simultaneously, provided that they are printed at a minimum distance of 5 [mm] apart. Thepowder layer thickness during printing was 110 microns. The mechanical characteristics of a specifictypeofspecimen, which conforms to the ISO 604 standard for compressive specimens, were examined. Thecompressive specimens have dimensions of Ø10x20 [mm]. Four batches of specimens were produced, eachdiffering in printing orientation (i.e. horizontal and vertical) and printing location (i.e. printed on the edgeandin the middle of the powder bed). The material used for printing the specimens is polyamide (PA12), whichhas a compressive strength is 13/24/55 MPa at 1%/2%/5%. The specimens were subjected to a standardtensiletesting machine (SHIMADZU AGS-X 100kN) after printing. Furthermore, the results of the testing also showed significant variations in the compressive strengthofthe specimens at different levels of elongation. At 1% and 2% elongation, the compressive strengthvaluesdisplayed large deviations, which suggests that the parts may not be able to withstand highlevelsofdeformation at these points. However, at 5% elongation, the values were much closer to the expectedvaluesfound in the literature
C3  - 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023)
T1  - Mechanical characteristics of compressive specimens obtained by SLS technology
EP  - 104
SP  - 104
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7086
ER  - 
@conference{
author = "Jevtić, Ivana and Mladenović, Goran and Milošević, Miloš and Milovanović, Aleksa",
year = "2023",
abstract = "The purpose of this research is to investigate the mechanical properties of Additive Manufacturing(AM)parts. The 3D printer used in this study is Fuse 1 (FormLabs, Summerville, MA), which utilizes theSLS(Selective Laser Sintering) technology. This technology allows the production of objects with different shapesand dimensions simultaneously, provided that they are printed at a minimum distance of 5 [mm] apart. Thepowder layer thickness during printing was 110 microns. The mechanical characteristics of a specifictypeofspecimen, which conforms to the ISO 604 standard for compressive specimens, were examined. Thecompressive specimens have dimensions of Ø10x20 [mm]. Four batches of specimens were produced, eachdiffering in printing orientation (i.e. horizontal and vertical) and printing location (i.e. printed on the edgeandin the middle of the powder bed). The material used for printing the specimens is polyamide (PA12), whichhas a compressive strength is 13/24/55 MPa at 1%/2%/5%. The specimens were subjected to a standardtensiletesting machine (SHIMADZU AGS-X 100kN) after printing. Furthermore, the results of the testing also showed significant variations in the compressive strengthofthe specimens at different levels of elongation. At 1% and 2% elongation, the compressive strengthvaluesdisplayed large deviations, which suggests that the parts may not be able to withstand highlevelsofdeformation at these points. However, at 5% elongation, the values were much closer to the expectedvaluesfound in the literature",
journal = "2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023)",
title = "Mechanical characteristics of compressive specimens obtained by SLS technology",
pages = "104-104",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7086"
}
Jevtić, I., Mladenović, G., Milošević, M.,& Milovanović, A.. (2023). Mechanical characteristics of compressive specimens obtained by SLS technology. in 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023), 104-104.
https://hdl.handle.net/21.15107/rcub_machinery_7086
Jevtić I, Mladenović G, Milošević M, Milovanović A. Mechanical characteristics of compressive specimens obtained by SLS technology. in 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023). 2023;:104-104.
https://hdl.handle.net/21.15107/rcub_machinery_7086 .
Jevtić, Ivana, Mladenović, Goran, Milošević, Miloš, Milovanović, Aleksa, "Mechanical characteristics of compressive specimens obtained by SLS technology" in 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023) (2023):104-104,
https://hdl.handle.net/21.15107/rcub_machinery_7086 .

Revitalization of horizontal boring mill machine using plc controller and dc converter

Kocić, Igor; Mladenović, Goran; Nikolić, Saša; Mitić, Darko; Danković, Nikola; Đekić, Petar

(University of Belgrade – Faculty of Mechanical Engineering, 2023)

TY  - CONF
AU  - Kocić, Igor
AU  - Mladenović, Goran
AU  - Nikolić, Saša
AU  - Mitić, Darko
AU  - Danković, Nikola
AU  - Đekić, Petar
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6900
AB  - In this paper is presented revitalization of the horizontal boring mill machine Stankoimport 2620B using a PLC controller manufactured by Schneider Electric and a DC converter manufactured by SSD Parker. As the machine is of an earlier production date, this method of feederate regulation in today's time is a problem because it is difficult to get the components in order to perform the maintenance or repair of the machine. The old control system was based on the use of electron tubes and an electromechanical amplifier. For this reason, a reconstruction was made using modern components for the control and regulation of the speed of the DC motor for feedrate moving. During the reconstruction, all AC motors and a DC motor with a tachogenerator were retained. All motors are tested and the brush holders was replaced on the DC motor and new brushes were installed. For the new part of the control system, which was built into the old control system, PLC software was developed and written, and new DC motor control hardware was installed. After revitalization, the machine was successfully tested in metal machining and the functionality of the installed components was proven. This revitalization was useful because the control panel on the machine remained the same as original state and it was not needed additional training of machine operator and also the electricity consumption and noise was reduced.
PB  - University of Belgrade – Faculty of Mechanical Engineering
C3  - 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07, 2023
T1  - Revitalization of horizontal boring mill machine using plc controller and dc converter
EP  - 13
SP  - 13
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6900
ER  - 
@conference{
author = "Kocić, Igor and Mladenović, Goran and Nikolić, Saša and Mitić, Darko and Danković, Nikola and Đekić, Petar",
year = "2023",
abstract = "In this paper is presented revitalization of the horizontal boring mill machine Stankoimport 2620B using a PLC controller manufactured by Schneider Electric and a DC converter manufactured by SSD Parker. As the machine is of an earlier production date, this method of feederate regulation in today's time is a problem because it is difficult to get the components in order to perform the maintenance or repair of the machine. The old control system was based on the use of electron tubes and an electromechanical amplifier. For this reason, a reconstruction was made using modern components for the control and regulation of the speed of the DC motor for feedrate moving. During the reconstruction, all AC motors and a DC motor with a tachogenerator were retained. All motors are tested and the brush holders was replaced on the DC motor and new brushes were installed. For the new part of the control system, which was built into the old control system, PLC software was developed and written, and new DC motor control hardware was installed. After revitalization, the machine was successfully tested in metal machining and the functionality of the installed components was proven. This revitalization was useful because the control panel on the machine remained the same as original state and it was not needed additional training of machine operator and also the electricity consumption and noise was reduced.",
publisher = "University of Belgrade – Faculty of Mechanical Engineering",
journal = "7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07, 2023",
title = "Revitalization of horizontal boring mill machine using plc controller and dc converter",
pages = "13-13",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6900"
}
Kocić, I., Mladenović, G., Nikolić, S., Mitić, D., Danković, N.,& Đekić, P.. (2023). Revitalization of horizontal boring mill machine using plc controller and dc converter. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07, 2023
University of Belgrade – Faculty of Mechanical Engineering., 13-13.
https://hdl.handle.net/21.15107/rcub_machinery_6900
Kocić I, Mladenović G, Nikolić S, Mitić D, Danković N, Đekić P. Revitalization of horizontal boring mill machine using plc controller and dc converter. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07, 2023. 2023;:13-13.
https://hdl.handle.net/21.15107/rcub_machinery_6900 .
Kocić, Igor, Mladenović, Goran, Nikolić, Saša, Mitić, Darko, Danković, Nikola, Đekić, Petar, "Revitalization of horizontal boring mill machine using plc controller and dc converter" in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07, 2023 (2023):13-13,
https://hdl.handle.net/21.15107/rcub_machinery_6900 .

Deviations Measurements of SLS PA Material at Compressive Specimens

Jevtić, Ivana; Mladenović, Goran; Milošević, Miloš; Trajković, Isaak; Milovanović, Aleksa

(University of Belgrade – Faculty of Mechanical Engineering, 2023)

TY  - CONF
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milošević, Miloš
AU  - Trajković, Isaak
AU  - Milovanović, Aleksa
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6899
AB  - SLS technology is a popular choice in various industries worldwide because of its ability to produce complex geometry components with less effort when compared to conventional methods. The technology involves using materials in powder forms, such as polyamides (PA), polystyrenes, thermoplastic elastomers, and polyaryletherketones. In this study, the research focuses on compressive PA12 specimens with CAD model dimensions selected according to the ISO 604 standard, with bulk dimensions of Ø10x20 [mm]. The study utilizes a Fuse 1 (FormLabs, Summerville, MA) 3D printer that employs the SLS technology. This printer is capable of producing objects with different shapes and dimensions simultaneously, provided that they are printed at a minimum distance of 5 [mm] apart. The research involves producing four batches of specimens, each differing in printing orientation (i.e., horizontal and vertical) and printing location (i.e., printed on the edge and in the middle of the powder bed). The printed specimens are scanned, and the obtained scans are compared with the original CAD model in the GOM Inspect program. The highest deviations in all four specimen series are in height, ranging from 0.1 up to 0.15 mm. In the case of vertical specimens printed in the middle of the powder bed, there are also deviations in the width of the specimen.
PB  - University of Belgrade – Faculty of Mechanical Engineering
C3  - 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07, 2023
T1  - Deviations Measurements of SLS PA Material at Compressive Specimens
EP  - 8
SP  - 8
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6899
ER  - 
@conference{
author = "Jevtić, Ivana and Mladenović, Goran and Milošević, Miloš and Trajković, Isaak and Milovanović, Aleksa",
year = "2023",
abstract = "SLS technology is a popular choice in various industries worldwide because of its ability to produce complex geometry components with less effort when compared to conventional methods. The technology involves using materials in powder forms, such as polyamides (PA), polystyrenes, thermoplastic elastomers, and polyaryletherketones. In this study, the research focuses on compressive PA12 specimens with CAD model dimensions selected according to the ISO 604 standard, with bulk dimensions of Ø10x20 [mm]. The study utilizes a Fuse 1 (FormLabs, Summerville, MA) 3D printer that employs the SLS technology. This printer is capable of producing objects with different shapes and dimensions simultaneously, provided that they are printed at a minimum distance of 5 [mm] apart. The research involves producing four batches of specimens, each differing in printing orientation (i.e., horizontal and vertical) and printing location (i.e., printed on the edge and in the middle of the powder bed). The printed specimens are scanned, and the obtained scans are compared with the original CAD model in the GOM Inspect program. The highest deviations in all four specimen series are in height, ranging from 0.1 up to 0.15 mm. In the case of vertical specimens printed in the middle of the powder bed, there are also deviations in the width of the specimen.",
publisher = "University of Belgrade – Faculty of Mechanical Engineering",
journal = "7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07, 2023",
title = "Deviations Measurements of SLS PA Material at Compressive Specimens",
pages = "8-8",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6899"
}
Jevtić, I., Mladenović, G., Milošević, M., Trajković, I.,& Milovanović, A.. (2023). Deviations Measurements of SLS PA Material at Compressive Specimens. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07, 2023
University of Belgrade – Faculty of Mechanical Engineering., 8-8.
https://hdl.handle.net/21.15107/rcub_machinery_6899
Jevtić I, Mladenović G, Milošević M, Trajković I, Milovanović A. Deviations Measurements of SLS PA Material at Compressive Specimens. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07, 2023. 2023;:8-8.
https://hdl.handle.net/21.15107/rcub_machinery_6899 .
Jevtić, Ivana, Mladenović, Goran, Milošević, Miloš, Trajković, Isaak, Milovanović, Aleksa, "Deviations Measurements of SLS PA Material at Compressive Specimens" in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07, 2023 (2023):8-8,
https://hdl.handle.net/21.15107/rcub_machinery_6899 .

Analysis of static strength of special tool for assembling wagon body

Tanasković, Jovan; Stojanović, Jagoš; Mladenović, Goran; Ranković, Jovana

(University of Belgrade – Faculty of Mechanical Engineering, 2023)

TY  - CONF
AU  - Tanasković, Jovan
AU  - Stojanović, Jagoš
AU  - Mladenović, Goran
AU  - Ranković, Jovana
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6901
AB  - This paper presents the results of a finite element analysis (FEA) conducted on the static strength of an assembly comprising a special tool used for assembling the wagon body including the underframe, body sides, ends, and roof. The assembly was designed by “AMM MANUFACTURING“ from Kragujevac, Serbia. The elements of the assembly were specially designed endure the operational load experienced during the wagon body assembly process without undergoing any permanent deformation. A numerical analysis was performed on the aforementioned special tool, which serves as a support tool for assembling the wagon body. The special tool was constructed using structural and stainless steel. The finite element model (FEM) was created based on a a 3D CAD model obtained from “AMM MANUFACTURING“ and the analysis oof the static strength was carried out using suitable software. The numerical analyses were conducted in compliance with relevant standards. The results obtained demonstrates that the assembly of a special tool is capable of withstand the operational load during the wagon body assembly process without experiencing any permanent deformation.
PB  - University of Belgrade – Faculty of Mechanical Engineering
C3  - 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts,  Zlatibor, July 04- July 07, 2023
T1  - Analysis of static strength of special tool for assembling wagon body
EP  - 52
SP  - 52
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6901
ER  - 
@conference{
author = "Tanasković, Jovan and Stojanović, Jagoš and Mladenović, Goran and Ranković, Jovana",
year = "2023",
abstract = "This paper presents the results of a finite element analysis (FEA) conducted on the static strength of an assembly comprising a special tool used for assembling the wagon body including the underframe, body sides, ends, and roof. The assembly was designed by “AMM MANUFACTURING“ from Kragujevac, Serbia. The elements of the assembly were specially designed endure the operational load experienced during the wagon body assembly process without undergoing any permanent deformation. A numerical analysis was performed on the aforementioned special tool, which serves as a support tool for assembling the wagon body. The special tool was constructed using structural and stainless steel. The finite element model (FEM) was created based on a a 3D CAD model obtained from “AMM MANUFACTURING“ and the analysis oof the static strength was carried out using suitable software. The numerical analyses were conducted in compliance with relevant standards. The results obtained demonstrates that the assembly of a special tool is capable of withstand the operational load during the wagon body assembly process without experiencing any permanent deformation.",
publisher = "University of Belgrade – Faculty of Mechanical Engineering",
journal = "7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts,  Zlatibor, July 04- July 07, 2023",
title = "Analysis of static strength of special tool for assembling wagon body",
pages = "52-52",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6901"
}
Tanasković, J., Stojanović, J., Mladenović, G.,& Ranković, J.. (2023). Analysis of static strength of special tool for assembling wagon body. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts,  Zlatibor, July 04- July 07, 2023
University of Belgrade – Faculty of Mechanical Engineering., 52-52.
https://hdl.handle.net/21.15107/rcub_machinery_6901
Tanasković J, Stojanović J, Mladenović G, Ranković J. Analysis of static strength of special tool for assembling wagon body. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts,  Zlatibor, July 04- July 07, 2023. 2023;:52-52.
https://hdl.handle.net/21.15107/rcub_machinery_6901 .
Tanasković, Jovan, Stojanović, Jagoš, Mladenović, Goran, Ranković, Jovana, "Analysis of static strength of special tool for assembling wagon body" in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts,  Zlatibor, July 04- July 07, 2023 (2023):52-52,
https://hdl.handle.net/21.15107/rcub_machinery_6901 .

Analysis of static strength of the production tool for mounting and internal transport the cab of the mireo high-speed train

Tanasković, Jovan; Ranković, Jovana; Mladenović, Goran; Stojanović, Jagoš

(University of Belgrade – Faculty of Mechanical Engineering, 2023)

TY  - CONF
AU  - Tanasković, Jovan
AU  - Ranković, Jovana
AU  - Mladenović, Goran
AU  - Stojanović, Jagoš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6902
AB  - The subject of this paper is the static strength analysis of a support production tool used for the mounting and internal transport of the cab of the MIREO high-speed train. The assembly of the production tool was designed by "AMM MANUFACTURING" from Kragujevac, Serbia. Numerical analyses were conducted using the finite element method (FEM). The elements of the assembly were specifically designed to withstand the operational load during the assembly of the "Mireo Cab" and internal transport, without experiencing any permanent deformation. The structure of the assembly was constructed using various materials, including structural steel grades S235JRG2 and S355J0, quenched and tempered steel grades C45 and 42CrMo4, PE500, and bolts of grades 8.8 and 10.9. The creation of the finite element model (FEM) and the analysis of static strength were performed using a specific software package. The results of the numerical analysis indicate that the assembly of the production tool can safely endure the working load, equivalent to the mass of the "Mireo Cab," without undergoing any permanent deformation. Based on the static strength results, the customer has received manual instructions for the proper usage of the assembly, particularly during lifting and internal transport.
PB  - University of Belgrade – Faculty of Mechanical Engineering
C3  - 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07
T1  - Analysis of static strength of the production tool for mounting and internal transport the cab of the mireo high-speed train
EP  - 53
SP  - 53
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6902
ER  - 
@conference{
author = "Tanasković, Jovan and Ranković, Jovana and Mladenović, Goran and Stojanović, Jagoš",
year = "2023",
abstract = "The subject of this paper is the static strength analysis of a support production tool used for the mounting and internal transport of the cab of the MIREO high-speed train. The assembly of the production tool was designed by "AMM MANUFACTURING" from Kragujevac, Serbia. Numerical analyses were conducted using the finite element method (FEM). The elements of the assembly were specifically designed to withstand the operational load during the assembly of the "Mireo Cab" and internal transport, without experiencing any permanent deformation. The structure of the assembly was constructed using various materials, including structural steel grades S235JRG2 and S355J0, quenched and tempered steel grades C45 and 42CrMo4, PE500, and bolts of grades 8.8 and 10.9. The creation of the finite element model (FEM) and the analysis of static strength were performed using a specific software package. The results of the numerical analysis indicate that the assembly of the production tool can safely endure the working load, equivalent to the mass of the "Mireo Cab," without undergoing any permanent deformation. Based on the static strength results, the customer has received manual instructions for the proper usage of the assembly, particularly during lifting and internal transport.",
publisher = "University of Belgrade – Faculty of Mechanical Engineering",
journal = "7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07",
title = "Analysis of static strength of the production tool for mounting and internal transport the cab of the mireo high-speed train",
pages = "53-53",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6902"
}
Tanasković, J., Ranković, J., Mladenović, G.,& Stojanović, J.. (2023). Analysis of static strength of the production tool for mounting and internal transport the cab of the mireo high-speed train. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07
University of Belgrade – Faculty of Mechanical Engineering., 53-53.
https://hdl.handle.net/21.15107/rcub_machinery_6902
Tanasković J, Ranković J, Mladenović G, Stojanović J. Analysis of static strength of the production tool for mounting and internal transport the cab of the mireo high-speed train. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07. 2023;:53-53.
https://hdl.handle.net/21.15107/rcub_machinery_6902 .
Tanasković, Jovan, Ranković, Jovana, Mladenović, Goran, Stojanović, Jagoš, "Analysis of static strength of the production tool for mounting and internal transport the cab of the mireo high-speed train" in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07 (2023):53-53,
https://hdl.handle.net/21.15107/rcub_machinery_6902 .

Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity

Popović, Mihajlo; Pjević, Miloš; Milovanović, Aleksa; Mladenović, Goran; Milošević, Miloš

(Springer Nature Switzerland, 2023)

TY  - JOUR
AU  - Popović, Mihajlo
AU  - Pjević, Miloš
AU  - Milovanović, Aleksa
AU  - Mladenović, Goran
AU  - Milošević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5903
AB  - High demand for part customization shifts industries toward AM technologies. Part customization in high-volume manufacturing is developed to its limits, whereas low-volume production using AM is still economically unjustified. FDM technology is quite common in low-volume AM production, but the main issue is poor printing parameter optimization which may result in insufficient final part quality. The subject of this paper is the experimental determination of the optimal parameters for the PLA polymer FDM parts, focusing on nozzle temperature and printing speed. Part geometry and mechanical properties are evaluated for the temperature range of 170–210 °C and speeds of 40, 80, and 120 mm/min. Roughness measurements for part geometrical accuracy assessment and tensile tests for mechanical property estimation have shown the clear advantage of 190 °C and 40 mm/min over the other parameter combinations. However, for higher FDM process productivity 80 mm/min speed may also be considered with 190 °C.
PB  - Springer Nature Switzerland
PB  - Seoul, The Korean Society of Mechanical Engineers
T2  - Journal of Mechanical Science and Technology
T1  - Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity
EP  - 706
IS  - 2
SP  - 697
VL  - 37
DO  - 10.1007/s12206-023-0113-6
ER  - 
@article{
author = "Popović, Mihajlo and Pjević, Miloš and Milovanović, Aleksa and Mladenović, Goran and Milošević, Miloš",
year = "2023",
abstract = "High demand for part customization shifts industries toward AM technologies. Part customization in high-volume manufacturing is developed to its limits, whereas low-volume production using AM is still economically unjustified. FDM technology is quite common in low-volume AM production, but the main issue is poor printing parameter optimization which may result in insufficient final part quality. The subject of this paper is the experimental determination of the optimal parameters for the PLA polymer FDM parts, focusing on nozzle temperature and printing speed. Part geometry and mechanical properties are evaluated for the temperature range of 170–210 °C and speeds of 40, 80, and 120 mm/min. Roughness measurements for part geometrical accuracy assessment and tensile tests for mechanical property estimation have shown the clear advantage of 190 °C and 40 mm/min over the other parameter combinations. However, for higher FDM process productivity 80 mm/min speed may also be considered with 190 °C.",
publisher = "Springer Nature Switzerland, Seoul, The Korean Society of Mechanical Engineers",
journal = "Journal of Mechanical Science and Technology",
title = "Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity",
pages = "706-697",
number = "2",
volume = "37",
doi = "10.1007/s12206-023-0113-6"
}
Popović, M., Pjević, M., Milovanović, A., Mladenović, G.,& Milošević, M.. (2023). Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity. in Journal of Mechanical Science and Technology
Springer Nature Switzerland., 37(2), 697-706.
https://doi.org/10.1007/s12206-023-0113-6
Popović M, Pjević M, Milovanović A, Mladenović G, Milošević M. Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity. in Journal of Mechanical Science and Technology. 2023;37(2):697-706.
doi:10.1007/s12206-023-0113-6 .
Popović, Mihajlo, Pjević, Miloš, Milovanović, Aleksa, Mladenović, Goran, Milošević, Miloš, "Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity" in Journal of Mechanical Science and Technology, 37, no. 2 (2023):697-706,
https://doi.org/10.1007/s12206-023-0113-6 . .
7

Development of methodologies for experimental analysis of neck deformations caused by impact forces in martial arts

Milošević, Miloš; Trajković, Isaak; Golubović, Zorana; Ivanov, Toni; Mladenović, Goran; Milovanović, Aleksa; Mitrović, Nenad

(SAGE, 2022)

TY  - JOUR
AU  - Milošević, Miloš
AU  - Trajković, Isaak
AU  - Golubović, Zorana
AU  - Ivanov, Toni
AU  - Mladenović, Goran
AU  - Milovanović, Aleksa
AU  - Mitrović, Nenad
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5424
AB  - Martial arts and fight sports are mostly based on exchanging the punches and kicks that often result with injuries of face, skull bones, and neck vertebrae. One of possibilities to reduce number of injuries in athletes who deal with martial arts is development of new materials and improvement of designs for helmets used in sport fights. In order to experimentally analyze impact forces and simulate conditions during different fight punches mechanical installment was made. Aramis system is used to measure the displacement fields and the distribution of deformations which occur on the neck over the entire analyzed area based on the correlation of digital images. On this manner better understanding of behavior of both materials and structures during the action of the impact forces and loading is obtained. This information can further be used in researches related to the development of helmets used in martial arts which would influence reduction of values of neck deformations in athletes.
PB  - SAGE
T2  - Advances in Mechanical Engineering
T1  - Development of methodologies for experimental analysis of neck deformations caused by impact forces in martial arts
EP  - 14
EP  - M23
IS  - 8
SP  - 1
VL  - 14
DO  - 10.1177/16878132221121515
ER  - 
@article{
author = "Milošević, Miloš and Trajković, Isaak and Golubović, Zorana and Ivanov, Toni and Mladenović, Goran and Milovanović, Aleksa and Mitrović, Nenad",
year = "2022",
abstract = "Martial arts and fight sports are mostly based on exchanging the punches and kicks that often result with injuries of face, skull bones, and neck vertebrae. One of possibilities to reduce number of injuries in athletes who deal with martial arts is development of new materials and improvement of designs for helmets used in sport fights. In order to experimentally analyze impact forces and simulate conditions during different fight punches mechanical installment was made. Aramis system is used to measure the displacement fields and the distribution of deformations which occur on the neck over the entire analyzed area based on the correlation of digital images. On this manner better understanding of behavior of both materials and structures during the action of the impact forces and loading is obtained. This information can further be used in researches related to the development of helmets used in martial arts which would influence reduction of values of neck deformations in athletes.",
publisher = "SAGE",
journal = "Advances in Mechanical Engineering",
title = "Development of methodologies for experimental analysis of neck deformations caused by impact forces in martial arts",
pages = "14-M23-1",
number = "8",
volume = "14",
doi = "10.1177/16878132221121515"
}
Milošević, M., Trajković, I., Golubović, Z., Ivanov, T., Mladenović, G., Milovanović, A.,& Mitrović, N.. (2022). Development of methodologies for experimental analysis of neck deformations caused by impact forces in martial arts. in Advances in Mechanical Engineering
SAGE., 14(8), 1-14.
https://doi.org/10.1177/16878132221121515
Milošević M, Trajković I, Golubović Z, Ivanov T, Mladenović G, Milovanović A, Mitrović N. Development of methodologies for experimental analysis of neck deformations caused by impact forces in martial arts. in Advances in Mechanical Engineering. 2022;14(8):1-14.
doi:10.1177/16878132221121515 .
Milošević, Miloš, Trajković, Isaak, Golubović, Zorana, Ivanov, Toni, Mladenović, Goran, Milovanović, Aleksa, Mitrović, Nenad, "Development of methodologies for experimental analysis of neck deformations caused by impact forces in martial arts" in Advances in Mechanical Engineering, 14, no. 8 (2022):1-14,
https://doi.org/10.1177/16878132221121515 . .
3

Novel Method for Measurement of Pipeline Materials Fracture Resistance-Examination on Selective Laser Sintered Cylindrical Specimens

Trajkovic, Isaak; Milošević, Miloš; Travica, Milan; Rakin, Marko; Mladenović, Goran; Kudrjavceva, Ljudmila; Međo, Bojan

(International Institute for the Science of Sintering, 2022)

TY  - JOUR
AU  - Trajkovic, Isaak
AU  - Milošević, Miloš
AU  - Travica, Milan
AU  - Rakin, Marko
AU  - Mladenović, Goran
AU  - Kudrjavceva, Ljudmila
AU  - Međo, Bojan
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6874
AB  - This paper presents a part of development of a non-standard method for testing of cylindrical test specimens for measurement of fracture properties of pipeline materials. This method for testing of cylindrical structures working under pressure is based on determining of fracture mechanics parameters on SENT (Single Edge Notched Tension) specimens and new PRNT (Pipe Ring Notched Tension) specimens. In this work, both types of specimens required for this testing were manufactured from polyamide PA12 by using SLS (selective laser sintering) additive manufacturing method. Testing of the specimens is performed on the universal device for testing of mechanical properties of materials Shimadzu, AGS-X 100 kN. The tensile testing is accompanied by GOM Aramis 2M system, used for digital image correlation. By using these two systems, test results are obtained for ring-shaped and SENT specimens, including forces, displacements and fracture mechanics parameters CMOD (Crack Mouth Opening Displacement) and CTOD-δ5 (Crack Tip Opening Displacement obtained by δ5 technique), as well as crack growth. Repeatability of this process, along with valid result consistency, represent the basis for further development of the new method, including the determining of energy-based fracture mechanics parameters: J integral and stress intensity factor.
PB  - International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Novel Method for Measurement of Pipeline Materials Fracture Resistance-Examination on Selective Laser Sintered Cylindrical Specimens
EP  - 386
SP  - 373
VL  - 54
DO  - 10.2298/SOS2203373T
ER  - 
@article{
author = "Trajkovic, Isaak and Milošević, Miloš and Travica, Milan and Rakin, Marko and Mladenović, Goran and Kudrjavceva, Ljudmila and Međo, Bojan",
year = "2022",
abstract = "This paper presents a part of development of a non-standard method for testing of cylindrical test specimens for measurement of fracture properties of pipeline materials. This method for testing of cylindrical structures working under pressure is based on determining of fracture mechanics parameters on SENT (Single Edge Notched Tension) specimens and new PRNT (Pipe Ring Notched Tension) specimens. In this work, both types of specimens required for this testing were manufactured from polyamide PA12 by using SLS (selective laser sintering) additive manufacturing method. Testing of the specimens is performed on the universal device for testing of mechanical properties of materials Shimadzu, AGS-X 100 kN. The tensile testing is accompanied by GOM Aramis 2M system, used for digital image correlation. By using these two systems, test results are obtained for ring-shaped and SENT specimens, including forces, displacements and fracture mechanics parameters CMOD (Crack Mouth Opening Displacement) and CTOD-δ5 (Crack Tip Opening Displacement obtained by δ5 technique), as well as crack growth. Repeatability of this process, along with valid result consistency, represent the basis for further development of the new method, including the determining of energy-based fracture mechanics parameters: J integral and stress intensity factor.",
publisher = "International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Novel Method for Measurement of Pipeline Materials Fracture Resistance-Examination on Selective Laser Sintered Cylindrical Specimens",
pages = "386-373",
volume = "54",
doi = "10.2298/SOS2203373T"
}
Trajkovic, I., Milošević, M., Travica, M., Rakin, M., Mladenović, G., Kudrjavceva, L.,& Međo, B.. (2022). Novel Method for Measurement of Pipeline Materials Fracture Resistance-Examination on Selective Laser Sintered Cylindrical Specimens. in Science of Sintering
International Institute for the Science of Sintering., 54, 373-386.
https://doi.org/10.2298/SOS2203373T
Trajkovic I, Milošević M, Travica M, Rakin M, Mladenović G, Kudrjavceva L, Međo B. Novel Method for Measurement of Pipeline Materials Fracture Resistance-Examination on Selective Laser Sintered Cylindrical Specimens. in Science of Sintering. 2022;54:373-386.
doi:10.2298/SOS2203373T .
Trajkovic, Isaak, Milošević, Miloš, Travica, Milan, Rakin, Marko, Mladenović, Goran, Kudrjavceva, Ljudmila, Međo, Bojan, "Novel Method for Measurement of Pipeline Materials Fracture Resistance-Examination on Selective Laser Sintered Cylindrical Specimens" in Science of Sintering, 54 (2022):373-386,
https://doi.org/10.2298/SOS2203373T . .
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