Evaluations of Mechanical Properties of ABS Parts from Open-Source 3D Printers and Conventional Manufacturing

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WCX SAE World Congress Experience
Authors Abstract
Content
3D printing is a revolutionary manufacturing method that allows the productions of engineering parts almost directly from modeling software on a computer. With 3D printing technology, future manufacturing could become vastly efficient. However, the procedures used in 3D printing differ substantially among the printers and from those used in conventional manufacturing. The objective of the present work was to comprehensively evaluate the mechanical properties of engineering products fabricated by 3D printing and conventional manufacturing. Three open-source 3D printers, i.e., the Flash Forge Dreamer, the Tevo Tornado, and the Prusa, were used to fabricate the identical parts out of the same material (acrylonitrile butadiene styrene). The parts were printed at various positions on the printer platforms and then tested in bending. Results indicate that there exist substantial differences in mechanical responses among the parts by different 3D printers. Specimens from the Prusa printer exhibit the best elastic properties while specimens from the Flash Forge printer exhibit the greatest post-yield responses. There further exist noticeable variations in mechanical properties among the parts that were fabricated by the same printer. Depending on the positions that the parts were placed on a printer platform, the properties of resultant parts can vary greatly. For comparison, identical parts were fabricated using a conventional manufacturing method, i.e., compression molding. Results show that compression molded parts exhibit more robust and more homogeneous properties than those from 3D printing.
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DOI
https://doi.org/10.4271/2020-01-0229
Pages
8
Citation
Garcia, J., Harper, R., Bradley, C., Schmidt, J. et al., "Evaluations of Mechanical Properties of ABS Parts from Open-Source 3D Printers and Conventional Manufacturing," SAE Int. J. Adv. & Curr. Prac. in Mobility 2(3):1314-1321, 2020, https://doi.org/10.4271/2020-01-0229.
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Publisher
Published
Apr 14, 2020
Product Code
2020-01-0229
Content Type
Journal Article
Language
English