闭式整体涡轮叶盘多轴联动电火花加工电极运动路径规划  

Electrode Path Searching for Multi-axis NC EDM of Shrouded Blisk

作　　者：刘晓[1] 康小明[1] 赵万生[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《电加工与模具》2012年第1期11-14,50,共5页Electromachining & Mould

基　　金：国家科技重大专项(2009ZX04003-021);国家高技术研究发展计划(863计划)资助项目(2009AA044201)

摘　　要：多轴联动电火花加工作为闭式整体涡轮叶盘的主流加工方法,其电极运动路径规划至关重要。为此,提出了一种电极运动路径规划的方法,使电极尽可能沿涡轮叶盘流道中心曲线运动,获得电极的最佳位置姿态。基于该方法,对某闭式整体涡轮泵叶轮进行了电极设计与电极运动路径规划,加工试验结果证明了该方法在加工效率与成本上的整体优势。Multi-axis NC electrical-discharge machining （EDM） is an effective approach for pro- cessing shrouded blisks. The key to shrouded blisk processing is to search an interference-free electrode path. A new electrode path searching method was proposed in this paper, which make the electrode move along the centre curve of blisk channel to get the optimized electrode posture. Taking a shrouded impeller as an example, electrode design and electrode path searching were conducted, and the experiment results show that this method not only improves the processing efficiency, but also reduces the electrode cost.

关 键 词：闭式整体涡轮叶盘 多轴联动电火花加工 电极运动路径规划 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]