3D打印成型方向和分层厚度的优化  

Optimizing of forming direction and slicing thickness in 3D printing

作　　者：余世浩[1,2] 周胜[2] 

机构地区：[1]武汉理工大学华夏学院,武汉430223 [2]武汉理工大学材料科学与工程学院,武汉430070

出　　处：《塑性工程学报》2015年第6期7-10,39,共5页Journal of Plasticity Engineering

摘　　要：根据3D打印工艺特点和STL文件的几何特性,建立零件成型质量和成型效率与零件成型方向、分层厚度的函数关系及多目标优化模型,采用非支配排序遗传算法NSGA-Ⅱ进行优化求解,得到非劣Pareto解集,解决了3D打印中成型质量和成型效率的权衡选择问题,实现成型方向和分层厚度的智能选择。通过实例验证了研究结果的可靠性。According to the characteristics of the three-dimensional（3D）printing process and the geometric features of the STL file,a multi-objective optimization model is established based on the function relation between the processing quality,processing efficiency,forming direction and slicing thickness.A method called multi-objective optimizing NSGA-Ⅱis used to optimize the part’s forming direction and slicing thickness,and then get the Pareto solutions.The method can not only solve the weigh choice problem of processing quality and processing efficiency,but also realize the smart selection of forming direction and slicing thickness.The experiments prove the above results.

关 键 词：3D打印 成型方向 分层厚度 多目标优化 PARETO解集 

分 类 号：TG66[金属学及工艺—金属切削加工及机床] TH16[机械工程—机械制造及自动化]