基于轨迹搜索的闭式三元流通道电火花加工电极设计方法  

EDM Electrode Design Based on Path Searching for Closed 3D-flow Channel

作　　者：赵建社[1] 唐兰剑[1,2] 郁子欣 周旭娇 

机构地区：[1]南京航空航天大学机电学院,南京210016 [2]中国燃气涡轮研究院,江油621700

出　　处：《南京航空航天大学学报》2013年第6期824-829,共6页Journal of Nanjing University of Aeronautics & Astronautics

基　　金：航空科学基金(2011ZE52055)资助项目;国防技术基础成果管理与推广资助项目;中央高校基本科研业务费专项资金(NS2012012;NS2013052)资助项目

摘　　要：数控电火花加工技术是加工闭式三元流通道的首选工艺之一,其中工具电极设计是关键技术。为此,从电极运动位姿变换的角度出发,提出了一种基于轨迹搜索的电极设计方法,并据此设计了某型三元流闭式整体叶轮叶间气流通道的电火花加工电极,利用UG平台上自主开发的加工仿真模块进行了加工过程仿真,验证了该设计方法的可行性与正确性。The design of tool electrodes is the key technology in numerically controlled electrical discharge machining （NC-EDM）, which is one of the preferred machining methods for closed 3D-flow channel. Therefore, a new method for electrode designing is put forward based on the path searching and trans- formation of position and pose. Electrodes of NC-EDM for one type of 3D-closed flow channel are de- signed by the method, and the process of electrical discharge machining is simulated by using self-devel- oped simulation software based on UG-platform. The correctness and feasibility of the design method are validated.

关 键 词：三元流通道 电火花加工 电极设计 闭式整体叶轮 

分 类 号：TG661[金属学及工艺—金属切削加工及机床] V261[航空宇航科学与技术—航空宇航制造工程]