Printing orientation influence on tensile strength of PA12 specimens obtained by SLS
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2023
Authors
Jevtić, IvanaGolubović, Zorana
Mladenović, Goran
Berto, Filippo
Sedmak, Aleksandar
Milovanović, Aleksa
Milošević, Miloš
Article (Published version)
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Show full item recordAbstract
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 m...ore uniform laser beam trajectory than in the H specimens' case.
Keywords:
Polyamide 12 / SLS / Printing orientation / Ultimate tensile strengthSource:
Journal of Mechanical and Technology, 2023, 37, 11, 1-6Publisher:
- Springer
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200105 (University of Belgrade, Faculty of Mechanical Engineering) (RS-MESTD-inst-2020-200105)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200213 (Innovation Center of the Faculty of Mechanical Engineering) (RS-MESTD-inst-2020-200213)
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Inovacioni centarTY - 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 . .