STRAIN RATE DEPENDENT MECHANICAL PROPERTIES OF 3D PRINTED ABS AND PLA RESINS USING THE DLP TECHNIQUE
Apstrakt
The most commercially widespread extrusion-based additive manufacturing technologies use thermoplastic filament materials, as opposed to vat polymerisation technology, which uses photopolymer resins. Thus,, for non-industrial applications and customised parts, ABS and PLA thermoplastic materials were mostly used for FDM printers, until the appearance of PLA and ABS resin for DLP. The development of a new resin material, ABS and PLA, presents a great challenge for customising 3D printing, as well as the comparing their mechanical properties.
In the present study, we focus on investigating the tensile, flexural, and compressive mechanical properties of ABS and PLA materials used in the DLP process. Five specimens for each resin were modelled and printed according to standard ISO 527-2, and tested on a standard testing machine. The analysis included additional processing of collected data using Matlab, and comparison of fractured surface images acquired by microscopy.
The obtained res...ults showed that the differences in the mechanical properties of ABS resin in comparison to PLA resin are not unilateral. PLA specimens’ ultimate tensile strength (UTS) is higher for tensile and flexural test and lower for compression tests. In the case of elastic modulus, PLA specimens exhibit higher values for all three mechanical tests. Elongation at yield has higher values for ABS specimens in tensile and compression tests compare to PLA specimens. Definitely, both resin materials after DLP processing reveal better mechanical behaviour under compression compared to tension stress. Selection between these two is case sensitive and strongly depends on the 3D printed part application.
Ključne reči:
Additive manufacturing / DLP / ABS resin / PLA resin / Mechanical propertiesIzvor:
CNN TECH 2023 „ International Conference of Experimental and Numerical Investigations and New Technologies “ Zlatibor, July 04 – July 06, 2022, 2023, 4-Finansiranje / projekti:
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200105 (Univerzitet u Beogradu, Mašinski fakultet) (RS-MESTD-inst-2020-200105)
Napomena:
- Predavanje po pozivu
Kolekcije
Institucija/grupa
Mašinski fakultetTY - CONF AU - Bojović, Božica PY - 2023 UR - https://machinery.mas.bg.ac.rs/handle/123456789/7375 AB - The most commercially widespread extrusion-based additive manufacturing technologies use thermoplastic filament materials, as opposed to vat polymerisation technology, which uses photopolymer resins. Thus,, for non-industrial applications and customised parts, ABS and PLA thermoplastic materials were mostly used for FDM printers, until the appearance of PLA and ABS resin for DLP. The development of a new resin material, ABS and PLA, presents a great challenge for customising 3D printing, as well as the comparing their mechanical properties. In the present study, we focus on investigating the tensile, flexural, and compressive mechanical properties of ABS and PLA materials used in the DLP process. Five specimens for each resin were modelled and printed according to standard ISO 527-2, and tested on a standard testing machine. The analysis included additional processing of collected data using Matlab, and comparison of fractured surface images acquired by microscopy. The obtained results showed that the differences in the mechanical properties of ABS resin in comparison to PLA resin are not unilateral. PLA specimens’ ultimate tensile strength (UTS) is higher for tensile and flexural test and lower for compression tests. In the case of elastic modulus, PLA specimens exhibit higher values for all three mechanical tests. Elongation at yield has higher values for ABS specimens in tensile and compression tests compare to PLA specimens. Definitely, both resin materials after DLP processing reveal better mechanical behaviour under compression compared to tension stress. Selection between these two is case sensitive and strongly depends on the 3D printed part application. C3 - CNN TECH 2023 „ International Conference of Experimental and Numerical Investigations and New Technologies “ Zlatibor, July 04 – July 06, 2022 T1 - STRAIN RATE DEPENDENT MECHANICAL PROPERTIES OF 3D PRINTED ABS AND PLA RESINS USING THE DLP TECHNIQUE SP - 4 UR - https://hdl.handle.net/21.15107/rcub_machinery_7375 ER -
@conference{ author = "Bojović, Božica", year = "2023", abstract = "The most commercially widespread extrusion-based additive manufacturing technologies use thermoplastic filament materials, as opposed to vat polymerisation technology, which uses photopolymer resins. Thus,, for non-industrial applications and customised parts, ABS and PLA thermoplastic materials were mostly used for FDM printers, until the appearance of PLA and ABS resin for DLP. The development of a new resin material, ABS and PLA, presents a great challenge for customising 3D printing, as well as the comparing their mechanical properties. In the present study, we focus on investigating the tensile, flexural, and compressive mechanical properties of ABS and PLA materials used in the DLP process. Five specimens for each resin were modelled and printed according to standard ISO 527-2, and tested on a standard testing machine. The analysis included additional processing of collected data using Matlab, and comparison of fractured surface images acquired by microscopy. The obtained results showed that the differences in the mechanical properties of ABS resin in comparison to PLA resin are not unilateral. PLA specimens’ ultimate tensile strength (UTS) is higher for tensile and flexural test and lower for compression tests. In the case of elastic modulus, PLA specimens exhibit higher values for all three mechanical tests. Elongation at yield has higher values for ABS specimens in tensile and compression tests compare to PLA specimens. Definitely, both resin materials after DLP processing reveal better mechanical behaviour under compression compared to tension stress. Selection between these two is case sensitive and strongly depends on the 3D printed part application.", journal = "CNN TECH 2023 „ International Conference of Experimental and Numerical Investigations and New Technologies “ Zlatibor, July 04 – July 06, 2022", title = "STRAIN RATE DEPENDENT MECHANICAL PROPERTIES OF 3D PRINTED ABS AND PLA RESINS USING THE DLP TECHNIQUE", pages = "4", url = "https://hdl.handle.net/21.15107/rcub_machinery_7375" }
Bojović, B.. (2023). STRAIN RATE DEPENDENT MECHANICAL PROPERTIES OF 3D PRINTED ABS AND PLA RESINS USING THE DLP TECHNIQUE. in CNN TECH 2023 „ International Conference of Experimental and Numerical Investigations and New Technologies “ Zlatibor, July 04 – July 06, 2022, 4. https://hdl.handle.net/21.15107/rcub_machinery_7375
Bojović B. STRAIN RATE DEPENDENT MECHANICAL PROPERTIES OF 3D PRINTED ABS AND PLA RESINS USING THE DLP TECHNIQUE. in CNN TECH 2023 „ International Conference of Experimental and Numerical Investigations and New Technologies “ Zlatibor, July 04 – July 06, 2022. 2023;:4. https://hdl.handle.net/21.15107/rcub_machinery_7375 .
Bojović, Božica, "STRAIN RATE DEPENDENT MECHANICAL PROPERTIES OF 3D PRINTED ABS AND PLA RESINS USING THE DLP TECHNIQUE" in CNN TECH 2023 „ International Conference of Experimental and Numerical Investigations and New Technologies “ Zlatibor, July 04 – July 06, 2022 (2023):4, https://hdl.handle.net/21.15107/rcub_machinery_7375 .