基于曲面重构的三元流叶轮短电弧加工轨迹规划及试验研究  

Trajectory planning and experimental research of short arc machining of ternary flow impeller based on surface reconstruction

作　　者：李泽文 李雪芝[1] 周建平[1] LI Zewen;LI Xuezhi;ZHOU Jianping(School of Mechanical Engineering,Xinjiang University,Urumqi 830017,China)

机构地区：[1]新疆大学机械工程学院,乌鲁木齐830017

出　　处：《现代制造工程》2023年第10期100-106,共7页Modern Manufacturing Engineering

基　　金：新疆维吾尔自治区自然科学基金项目(2021D01C102)。

摘　　要：以具有复杂曲面特征的三元流叶轮点云为对象,以Matlab和UG/NX为平台,通过改进滤波算法对点云数据进行优化处理、模型型值点提取及复杂曲面拟合等过程实现叶轮的逆向重构。基于CC截面法结合短电弧加工特性,生成适用于短电弧加工的无干涉刀路轨迹,并最终在五轴短电弧数控机床上得到验证,获得了叶轮粗加工、半精加工阶段最优的工艺参数。Using the point cloud of a ternary flow impeller with complex surface features as the object,the inverse reconstruction of the impeller is achieved by improving the filtering algorithm to optimise the processing of the point cloud data,extracting the model-type value points and fitting the complex surface.Based on the CC section method combined with the characteristics of short arc machining,an interference-free toolpath trajectory suitable for short arc machining is generated and finally verified on a 5-axis short arc CNC machine to obtain the optimal process parameters for the roughing and semi-finishing stages of the impeller.

关 键 词：三元流叶轮 逆向重构 短电弧数控加工 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]