快速成型技术中分区自适应工艺调整算法研究  

Research on Partition Adaptive Process Adjustment Algorithm in Rapid Prototyping Technology

作　　者：田同同 李论[1,2] 周波 赵吉宾[1,2] TIAN Tong-tong;LI Lun;ZHOU Bo;ZHAO Ji-bin(Shenyang Institute of Automation,Chinese Academy of Sciences,Shenyang 110016,China;Institutes for Robotics and Intelligent Manufacturing,Chinese Academy of Sciences,Shenyang 110016,China)

机构地区：[1]中国科学院沈阳自动化研究所,辽宁沈阳110016 [2]中国科学院机器人与智能制造创新研究院,辽宁沈阳110016

出　　处：《真空》2020年第3期80-83,共4页Vacuum

基　　金：国家自然科学基金项目(51775542);国家自然科学基金项目(51605475);国家重点研发计划项目(2016YFB11005)。

摘　　要：为解决激光快速成型技术在加工成形过程中,由于内部应力过大导致的翘曲变形甚至开裂的缺点,从控制加工路径的角度提出了分区自适应工艺调整算法,算法将整个模型分组加工,每一组的加工路径需要实时生成,生成依据是上一组已成形表面的分区域平均高度值,建立了子区域平均高度值与其对应区域的填充间距之间的自适应关系,最终使用C++语言编程实现了该算法,并进行了仿真模拟,根据各子区域平均高度值获得了相应的填充间距,验证了算法的正确性。There are deformation and even cracking caused by excessive internal stress in the process of additive manufacturing of laser rapid prototyping technology. In order to solve the shortcomings,a partition adaptive process adjustment algorithm is proposed from the perspective of controlling the processing path,and the whole model is processed into groups. The processing path of each group needs to be generated in real time. The generation is based on the average height value of the sub-region of the previous set of formed surfaces,and the adaptive relationship between the average height value of the sub-area and the filling interval of its corresponding area is established. Finally,the C ++ language is used. The algorithm is implemented by programming,and the simulation is carried out. According to the average height value of each sub-area,the corresponding filling pitch is obtained,and the correctness of the algorithm is verified.

关 键 词：激光快速成形 翘曲变形 分组 路径 平均高度 填充间距 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]