面向零件陡峭面加工的刀路优化问题研究

Study on Machining Tool-path Optimization for Part Steep Surfaces

针对目前数控加工过程中零件陡峭面螺旋切削加工方式的局限,在对高速加工(HSM)切削路径进行研究的基础上,借鉴手工编程的优点,通过整合辅助螺旋线和平面轮廓线的投影对计算机辅助制造(CAM)过程进行优化,提出一种新型复合式螺旋切削刀路,从而扩展了先进螺旋切削方式在高速加工中的应用范围。VERICUT软件模拟和实际加工的结果表明,新型刀路能够满足陡峭面和平面并存零件高速加工路径的要求。

Against the limitations of machining method that were currently used for spiral cutting of steep surfaces in CNC machining process, based on study of tool--path of the high--speed machi- ning, drawing on the advantages of manual programming, through the projection and the integration of auxiliary lines, a process of computer--aided manufacturing（CAM） was optimized. This paper pro- posed a new kind of hybrid spiral tool--path that expanded the application area of the advanced spiral cutting approach in high speed machining. The simulations on VERICUT and machining practices show that the new tool--path is able to meet requirements of high--speed machining for parts with both steep surfaces and flat planes.