双缘板叶片电解加工流场优化与试验研究  

Optimal Design and Experimental Study of Flow Mode of ECM of Double-flange Plates Blades

作　　者：钱浩 刘嘉[1] 汪浩[1] 朱荻[1] QIAN Hao;LIU Jia;WANG Hao;ZHU Di(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《机械制造与自动化》2020年第2期7-11,共5页Machine Building & Automation

基　　金：国家自然基金重点项目(51535006);江苏省杰出青年基金项目(BK20170031);中央高校基本科研业务费资助项目(NE2014104)。

摘　　要：针对在长叶身的双缘板叶片电解加工中由于流场的不均匀经常导致加工短路的问题,开展了叶片电解加工流场优化仿真分析,结果表明大量电解液从两侧缘板区域的间隙中被分流,造成叶身型面部分流量减小,导致产物不能及时排出间隙,容易引起加工短路。为了改善加工区域流场分布不均的情况,提出了一种基于液体密封的多向辅助供液流场方式,对提出的流场方式开展流场仿真分析,仿真结果表明加工区流场稳定性与一致性显著提升。开展了所提出流场的电解加工工艺试验,加工过程电流稳定,试件具有较好的加工效果,验证了提出流场方式的有效性。In the ECM of long-body blades with double-flange plates,the machining short-circuit often occurs due to the flow maldistribution.To improve the uneven distribution of flow field in the processing area,this paper proposes a multi-directional auxiliary liquid flow mode based on liquid seal and makes the flow field simulation analysis.The simulation results show that its stability and consistency are improved significantly.And then,the ECM process test of this flow field is carried out.As a result,the current is stable in the machining process and the specimen has good machining effect.The effectiveness of this method is verified.

关 键 词：叶片 电解加工 流场 仿真 

分 类 号：V232.4[航空宇航科学与技术—航空宇航推进理论与工程]