论文标题
填充模式和构建方向对FDM印刷零件的机械性能的影响：实验模态分析方法
Effect of infill pattern and build orientation on mechanical properties of FDM printed parts: An experimental modal analysis approach
论文作者
论文摘要
融合沉积建模（FDM）是使用热塑性材料制造产品的最广泛探索的添加剂制造方法之一。使用FDM制造的零件的机械性能受制造过程中涉及的不同过程参数的影响，因为它们会影响横截面不同层之间的键合。在这项研究中，研究了填充模式和构建方向对使用FDM方法制造的基于PLA的零件的机械性能的影响。六种不同的填充图案（三角形，立方，同心，四面体，线条和锯齿形）和三个不同的方向（平坦的方向，边缘和直立）用于矩形梁型部分。为了确定具有不同填充模式和方向的零件的机械性能，进行了弯曲弯曲测试。进行了制造零件的实验模态分析，以观察固有频率与从弯曲弯曲测试获得的零件的弹性模量的关系。探索了实验模态分析作为测试FDM 3D打印零件的机械性能的替代性非破坏性方法的可能性。
Fused Deposition Modeling (FDM) is one of the most widely explored additive manufacturing method that uses thermoplastic materials to manufacture products. Mechanical properties of parts manufactured using FDM are influenced by different process parameters involved during manufacturing as they impact the bonding among different layers of cross-section. In this study, the effect of infill patterns and build orientations on the mechanical properties of PLA based parts manufactured using FDM method is studied. Six different infill patterns (triangles, cubic, concentric, tetrahedral, lines, and zigzag) and three different orientations (flatwise, edgewise, and upright) are considered for rectangular beam type parts. For determining mechanical properties of parts with different infill patterns and orientations, flexural bending test is performed. Experimental modal analysis of manufactured parts is performed to observe the relation of natural frequencies with elastic modulus of the parts obtained from flexural bending test. The possibility of experimental modal analysis as an alternative non-destructive method for testing mechanical properties of FDM 3D printed parts is explored.
