3D打印工艺参数对PLA制品弯曲性能的影响  

The Influence of 3D Printing Process Parameters on the Bending Performance of PLA Products

作　　者：文周[1,2] WEN Zhou(Dongguan Polytechnic,Dongguan 523808,China;Xi'an University of Science and Technology,Xi'an 710054,China)

机构地区：[1]东莞职业技术学院,广东东莞523808 [2]西安科技大学机械学院,陕西西安710054

出　　处：《塑料工业》2020年第11期79-83,共5页China Plastics Industry

基　　金：东莞市社会科技发展一般项目(20185071561237)。

摘　　要：为了提高熔融沉积制造(FDM)成型制品的质量,采用田口方法研究填充密度、沉积方向和填充图案三个因素对聚乳酸(PLA)制品弯曲性能的影响。结果表明,加工工艺参数对弯曲模量的影响程度为:填充图案>沉积方向>填充密度,最优化参数组合为填充密度100%、沉积方向90°、填充图案蜂窝形状。对最大弯曲强度的影响程度为:沉积方向>填充密度>填充图案,最优化参数组合为填充密度70%、沉积方向0°、填充图案网格形状。研究内容对于优化3D打印参数、提高PLA制品成型质量(尤其是弯曲力学性能)具有一定的参考价值。In order to improve the quality of fused deposition modeling(FDM)products,taguchi test was used to study the influence of filling density,deposition direction and filling pattern on the bending properties of poly(lactic acid)(PLA)products.The results show that the influence of processing parameters on the bending modulus is that the filling pattern>the direction of deposition>the filling density.And the optimal parameter combination is that the filling density is 100%,the direction of deposition is 90°,and the filling pattern is honeycomb shape.The degree of influence on the maximum bending strength is that the deposition direction>the filling density>the filling pattern.The optimal parameter combination is that the filling density is 70%,the deposition direction is 0°and the filling pattern is grid shape.The research content has certain reference values for optimizing 3D printing parameters and improving the forming quality of PLA products(especially the bending mechanical properties).

关 键 词：熔融沉积制造 打印参数 田口方法 弯曲性能 

分 类 号：TH145[一般工业技术—材料科学与工程]