PDF(Pubmed)
Abstract：
Fused Deposition Modelling (FDM) is one of the layer-based technologies that fall under the umbrella term \"Additive Manufacturing\", where the desired part is created through the successive layer-by-layer addition process with high accuracy using computer-aided design data. Additive manufacturing technology, or as it is commonly known, 3D (three-dimensional) printing, is a rapidly growing sector of manufacturing that is incorporated in automotive, aerospace, biomedical, and many other fields. This work explores the impact of the Additive Manufacturing process on the mechanical proprieties of the fabricated part. To conduct this study, the 3D printed tensile specimens are designed according to the ASTM D638 standards and printed from a digital template file using the FDM 3D printer Raise3D N2. The material chosen for this 3D printing parameter optimization is Polylactic acid (PLA). The FDM process parameters that were studied in this work are the infill pattern, the infill density, and the infill cell orientation. These factors\' effects on the tensile behavior of printed parts were analyzed by the design of experiments method, using the statistical software MINITAB2020.
摘要：
熔融沉积建模(FDM)是基于层的技术之一，属于“增材制造”这一术语，其中使用计算机辅助设计数据通过连续的逐层添加过程以高精度创建所需部件。增材制造技术，或者众所周知，3D（三维）打印，是一个快速增长的制造业部门，被纳入汽车，航空航天，生物医学,和许多其他领域。这项工作探讨了增材制造工艺对制造零件的机械特性的影响。为了进行这项研究，3D打印拉伸试样根据ASTMD638标准设计，并使用FDM3D打印机Raise3DN2从数字模板文件打印。用于该3D打印参数优化的材料是聚乳酸(PLA)。在这项工作中研究的FDM工艺参数是填充模式，填充密度，和填充细胞的方向。通过设计实验方法分析了这些因素对印刷零件拉伸行为的影响，使用统计软件MINITAB2020。
