大直径PLA长丝对3D打印构件力学性能的影响  

Effect of Large-Diameter PLA Filament on Mechanical Properties of 3D Printing Component

作　　者：权利军 李丹丹[1] 赵勇[1] 祝成炎[1] 

机构地区：[1]浙江理工大学材料与纺织学院丝绸学院,杭州310018

出　　处：《现代纺织技术》2017年第3期11-16,共6页Advanced Textile Technology

基　　金：浙江理工大学2015年度研究生创新项目(YCX15002);浙江理工大学2015年度研究生创新研究项目(YCX15010)

摘　　要：熔融沉积型3D打印机通过累积叠加大直径长丝形成构件,鉴于聚乳酸长丝在熔融沉积型3D打印机上的大量使用,本文重点研究了大直径聚乳酸长丝的直径、排列方式、排列密度对3D打印构件力学性能的影响。结果表明:聚乳酸长丝排列越紧密,所打印出构件的拉伸断裂强度越好;同等情况下,聚乳酸长丝以同心线方式排列的构件其拉伸断裂强度最好;当填充密度小于100%时,由0.4mm聚乳酸长丝构成的3D打印构件机械性能更好。FDM（fused deposition modeling） 3D printer forms the component through accumulating large-diameter filaments.In view of the extensive use of polylactic acid filaments in FDM 3D printer,the effects of diameter,arrangement and arrangement density of large-diameter polylactic acid filaments on the mechanical properties of 3D printing component were mainly studied in this paper.The experimental results demonstrate that the tensile failure strength of the polylactic acid filaments is better when the filaments are arranged closely;under the same conditions,the component with the arrangement mode of concentric line has the best tensile failure strength.When the packing density is less than 100%,the mechanical property of the component printed by the 0.4mm polylactic acid filament is better than that of the component printed by 0.2mm polylactic acid filament.

关 键 词：FDM型3D打印 大直径PLA长丝 拉伸断裂强度 

分 类 号：TS102.1[轻工技术与工程—纺织工程]