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Are We Able to Print Components as Strong as Injection Molded?—Comparing the Properties of 3D Printed and Injection Molded Components Made from ABS Thermoplastic

Institute of Metrology and Biomedical Engineering, Faculty of Mechatronics, Warsaw University of Technology, 8 Sw. A. Boboli St., 02-525 Warsaw, Poland
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Academic Editors: Ireneusz Szachogluchowicz, Janusz Torzewski and Marcin Wachowski
Appl. Sci. 2021, 11(15), 6946; https://doi.org/10.3390/app11156946
Received: 28 June 2021 / Revised: 23 July 2021 / Accepted: 26 July 2021 / Published: 28 July 2021
In this paper, we are focusing on comparing results obtained for polymer elements manufactured with injection molding and additive manufacturing techniques. The analysis was performed for fused deposition modeling (FDM) and single screw injection molding with regards to the standards used in thermoplastics processing technology. We argue that the cross-section structure of the sample obtained via FDM is the key factor in the fabrication of high-strength components and that the dimensions of the samples have a strong influence on the mechanical properties. Large cross-section samples, 4 × 10 mm2, with three perimeter layers and 50% infill, have lower mechanical strength than injection molded reference samples—less than 60% of the strength. However, if we reduce the cross-section dimensions down to 2 × 4 mm2, the samples will be more durable, reaching up to 110% of the tensile strength observed for the injection molded samples. In the case of large cross-section samples, strength increases with the number of contour layers, leading to an increase of up to 97% of the tensile strength value for 11 perimeter layer samples. The mechanical strength of the printed components can also be improved by using lower values of the thickness of the deposited layers. View Full-Text
Keywords: additive manufacturing; fused deposition modeling; injection molding; polymers; tensile strength additive manufacturing; fused deposition modeling; injection molding; polymers; tensile strength
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MDPI and ACS Style

Podsiadły, B.; Skalski, A.; Rozpiórski, W.; Słoma, M. Are We Able to Print Components as Strong as Injection Molded?—Comparing the Properties of 3D Printed and Injection Molded Components Made from ABS Thermoplastic. Appl. Sci. 2021, 11, 6946. https://doi.org/10.3390/app11156946

AMA Style

Podsiadły B, Skalski A, Rozpiórski W, Słoma M. Are We Able to Print Components as Strong as Injection Molded?—Comparing the Properties of 3D Printed and Injection Molded Components Made from ABS Thermoplastic. Applied Sciences. 2021; 11(15):6946. https://doi.org/10.3390/app11156946

Chicago/Turabian Style

Podsiadły, Bartłomiej, Andrzej Skalski, Wiktor Rozpiórski, and Marcin Słoma. 2021. "Are We Able to Print Components as Strong as Injection Molded?—Comparing the Properties of 3D Printed and Injection Molded Components Made from ABS Thermoplastic" Applied Sciences 11, no. 15: 6946. https://doi.org/10.3390/app11156946

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