Jackson Brandon, Fouladi Kamran, Eslami Babak
Mechanical Engineering Department, Widener University, Chester, PA 19013, USA.
Polymers (Basel). 2022 Apr 13;14(8):1586. doi: 10.3390/polym14081586.
Fused deposition modeling (FDM) 3D printing is the most common type of additive manufacturing available in both research and the industry. Due to the rapid development of 3D printing, there is now a significant need to fabricate parts with with respect to cosmetics, precision, and strength of the final products. This work is focused on finding the optimal printing condition for a commercially available 3D printer and filament material (i.e., Polylactic acid (PLA)). In this work, we focus on finding the combined effect of retraction speed, deposition angle, and number of walls on both the visual quality and strength of 3D-printed parts. It is found that the number of walls does not play a major role in the strength of the parts. On the other hand, the retraction speed plays a significant role in defining the ultimate tensile strength of the parts. For parts printed at higher retraction speeds, there is a 10-15% improvement in the ultimate tensile strength.
熔融沉积建模（FDM）3D打印是研究和工业领域中最常见的增材制造类型。由于3D打印的快速发展，目前对于制造在化妆品特性、精度和最终产品强度方面具有优势的零件存在巨大需求。这项工作专注于为一款商用3D打印机和丝状材料（即聚乳酸（PLA））找到最佳打印条件。在这项工作中，我们着重研究回缩速度、沉积角度和壁数对3D打印零件的视觉质量和强度的综合影响。研究发现，壁数对零件强度的影响不大。另一方面，回缩速度在确定零件的极限拉伸强度方面起着重要作用。对于以较高回缩速度打印的零件，其极限拉伸强度提高了10% - 15%。
