整体叶盘精密电解加工辅助阳极设计方法研究  

Research on Design Method of Auxiliary Anode in Precision Electrolytic Machining of Blisk

作　　者：程新想 赵建社[1,2] 岳磊 苏庆怀 王忠恒 黄佳 CHENG Xinxiang;ZHAO Jianshe;YUE Lei;SU Qinghuai;WANG Zhongheng;HUANG Jia(Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;JITRI Institute of Precision Manufacturing Co.,Ltd.,Nanjing 211806,China;AECC South Industry Co.,Ltd.,Zhuzhou 412002,China)

机构地区：[1]南京航空航天大学,南京210016 [2]江苏集萃精密制造研究院有限公司,南京211806 [3]中国航发南方工业有限公司,株洲412002

出　　处：《航空制造技术》2025年第1期95-100,109,共7页Aeronautical Manufacturing Technology

基　　金：中国航发产学研合作专项资金(HFZL2022CXY030);江苏省重点研发计划(BE2022150);湖南省重点领域研发计划(2023GK2098)。

摘　　要：杂散腐蚀是影响整体叶盘型面精密电解加工精度的重要因素,辅助阳极可以有效抑制相邻已加工叶片的杂散腐蚀,进而提高叶片加工精度。针对中小型航空发动机整体叶盘叶间通道狭窄扭曲导致辅助阳极设计困难的问题,提出了一种辅助阳极结构设计方法,该方法通过优化工具阴极进给路径实现了辅助阳极的优化设计。试验结果表明,采用该方法设计的辅助阳极在开展整体叶盘电解加工试验时,阴极组件可以顺利进给至加工起始位置,加工后叶片表面光滑,无明显杂散腐蚀痕迹,有效提高了整体叶盘的加工精度。Stray corrosion is an important factor affecting the precision electrolytic machining(PECM)accuracy of the blisk surface,and the auxiliary anode can effectively inhibit the stray corrosion of adjacent machined blades,thereby improving the machining accuracy of blades.In order to solve the problem that the narrow and twisted inter-blade channel of the blisk of small and medium-sized aero-engines leads to the difficulty of auxiliary anode design,an auxiliary anode structure design method was proposed,which realized the optimal design of the auxiliary anode by optimizing the feed path of the tool cathode.Results of the experiment research show that the auxiliary anode designed by this method can be fed to the starting position of the machining smoothly,and the surface of the machined blade is smooth,and there are no obvious traces of stray corrosion,which effectively improves the machining accuracy of the blisk.

关 键 词：整体叶盘 精密电解加工(PECM) 辅助阳极 粒子群优化算法(PSO) 杂散腐蚀 

分 类 号：TG662[金属学及工艺—金属切削加工及机床] V263[航空宇航科学与技术—航空宇航制造工程]