Effects of Size and Surface Treatment on Fatigue Life of Fused Filament Fabrication Manufactured Acrylonitrile Butadiene Styrene Parts
Effects of Size and Surface Treatment on Fatigue Life of Fused Filament Fabrication Manufactured Acrylonitrile Butadiene Styrene Parts
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尺寸和表面处理对熔丝制造丙烯腈丁二烯苯乙烯零件疲劳寿命的影响
DOI：
10.1115/1.4050178
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Wang, Jyhwen
中科院分区：
文献类型：
--
作者：
Huang, Jianchi;Miscles, Eduardo;Mellor, Tara;Ma, Chao;Kuttolamadom, Mathew;Wang, Jyhwen
通过实验研究了几何尺寸和表面处理对熔丝法制造的丙烯腈-丁二烯-苯乙烯共聚物（ABS）零件疲劳寿命的影响。采用摩尔梁疲劳试验方法，在4种不同载荷水平下进行了疲劳试验，得到了S-N曲线。研究了两种不同尺寸（控制尺寸和大尺寸）和三种不同的表面处理方法（印刷，丙酮处理和砂纸抛光）。与对照试样相比，较大的试样由于体积较大，疲劳寿命显著降低，因此裂纹萌生和扩展缺陷的可能性更大。丙酮处理的试样具有光滑的表面。然而，它的疲劳寿命显着下降，因为丙酮处理引起的内部损伤，削弱了试样，并首次报道。砂纸抛光的试样表面也很光滑，但由于试样表面的挤出丝方向与加载方向平行，因此对疲劳寿命的影响不大。目前的结果导致更好地理解的几何尺寸和表面处理对疲劳性能的FFF试样的影响。该研究还为疲劳加载最终用途应用的三维（3D）打印塑料部件的零件尺寸和表面处理设计提供了重要见解。
An experimental study was conducted to study the effects of geometric size and surface treatment on the fatigue life of fused filament fabrication (FFF) manufactured acrylonitrile butadiene styrene (ABS) parts. Moore rotating-beam fatigue tests were conducted with four different levels of loadings to obtain the S–N curves. Two different sizes (control size and large size) and three different surface treatment methods (as-printed, acetone-treated, and sandpaper polished) were studied. The larger specimens had significantly decreased fatigue life because of a larger volume, and hence a greater probability of defects for crack initiation and propagation, as compared with the control specimen. The acetone-treated specimen had a smooth surface. Its fatigue life, however, decreased significantly because the acetone treatment caused internal damage that weakened the specimen and was reported for the first time. The sandpaper polished specimen also had a smooth surface, but its effect on the fatigue life was insignificant because the extruded filament direction on the specimen surface was parallel to the loading direction. The present results lead to a better understanding of the effects of geometric size and surface treatment on the fatigue performance of FFF specimens. The study also provides important insights for the design of part size and surface treatment of three-dimensional (3D) printed plastic components for fatigue loading end-use applications.
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