FDM精准成型温度FEA分析与试验研究  

Temperature FEA Analysis and Experimental Study of FDM Precision Molding

作　　者：田和雨 胡东吉 潘远安 邵晚幸 高文嫱 Tian Heyu;Hu Dongji;Pan Yuanan;Shao Wanxing;Gao Wenqiang(Changchun Automobile Industry Insititute,Changchun,Jilin 130013,CHN;Changchun Equipment and Technology Research Institute,Changchun,Jilin 130012,CHN)

机构地区：[1]长春汽车工业高等专科学校,吉林长春130013 [2]长春设备工艺研究所,吉林长春130012

出　　处：《模具制造》2023年第6期44-48,共5页Die & Mould Manufacture

基　　金：长春汽车工业高等专科学校2022年度科研课题:非金属材料复杂异形零件增材制造精准成型技术(主持人:田和雨,项目编号XJKY011)。

摘　　要：针对熔融沉积3D打印的相变成型原理在空间中X、Y、Z轴各方向的成型精度尺寸误差,运用ANSYS进行有限元仿真分析,获取典型打印材料PLA的优势流变性温度200℃、210℃、220℃、230℃。设计正交试验得到了外表面尺寸精度、垂直高度尺寸精度、内凹部位尺寸精度分别在230℃、220℃、200℃时最佳;打印参数综合精准成型度较高的最优组合为:打印温度210℃、打印速度40mm/s、分层厚度0.1mm、热床温度60℃。Aiming at the dimensional errors of molding accuracy in X,Y and Z axes in space of phase change molding principle of melt deposition 3D printing,finite element simulation analysis was carried out by ANSYS,and the dominant rheological temperature of PLA,a typical printing material,was obtained at 200℃,210℃,220℃and 230℃.Orthogonal experiments were designed to obtain the best dimensional accuracy of external surface,vertical height and concave parts at 230℃,220℃and 200℃,respectively.The optimal combination of printing parameters with high precision molding degree is as follows:printing temperature 210℃,printing speed 40mm/s,layering thickness 0.1mm and hot bed temperature 60℃.

关 键 词：熔融沉积 有限元仿真 PLA 相变 

分 类 号：TG659[金属学及工艺—金属切削加工及机床] TH162[机械工程—机械制造及自动化]