Fused filament fabrication (FFF) is a method used to fabricate initial prototypes out of polymeric materials, with printed parts often being used as load-carrying elements. The mechanical properties of various polymer materials produced under certain printing conditions exhibit superior strength and ductility and may serve as an inexpensive replacement for metal or wooden parts. To gain knowledge of 3D-printed part strength and compare the quality of filament material from several manufacturers, this study characterizes the mechanical properties of parts printed from various commercial FFF feedstocks. Uniaxial tensile testing is performed to determine the ultimate tensile strength, Young's modulus, and fracture strain of polymer and composite materials. This study, thus, demonstrates the importance and necessity of evaluating the filament feedstock prior to printing, as polymeric filaments of the same type of polymer can have different mechanical properties.

中文翻译：

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熔融长丝制造 (FFF) 中热塑性聚合物的机械性能

熔丝制造 (FFF) 是一种使用聚合物材料制造初始原型的方法，印刷部件通常用作承载元件。在某些印刷条件下生产的各种聚合物材料的机械性能表现出优异的强度和延展性，可以作为金属或木制零件的廉价替代品。为了了解 3D 打印零件的强度并比较多家制造商的长丝材料的质量，本研究描述了由各种商业 FFF 原料打印的零件的机械性能。进行单轴拉伸测试以确定聚合物和复合材料的极限拉伸强度、杨氏模量和断裂应变。因此，本研究，