复杂型腔电解加工成形规律分析及试验研究  

Research on Forming Rule of Electrochemical Machining of Complex Cavity by Analysis and Experiments

作　　者：杨柳柳 王忠恒 刘超 赵建社[1,2] YANG Liuliu;WANG Zhongheng;LIU Chao;ZHAO Jianshe(Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;JITRI Institute of Precise Manufacturing,Nanjing 211806,China;AECC South Industry Co.,Ltd.,Zhuzhou 412000,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412000

出　　处：《航空制造技术》2024年第18期46-53,共8页Aeronautical Manufacturing Technology

基　　金：中国航发产学研项目(HFZL2022CXY030);江苏省重点研发计划(BE2022150)。

摘　　要：电解加工适用于包含复杂型腔的难加工材料整体构件的高效加工,但复杂型腔电解加工时加工余量的分布需进一步深入研究。针对阴极曲面上各点法向与进给方向夹角不同时工件成形过程存在差异的问题,对阴极建立特定夹角处加工间隙的微分方程,模拟不同法向与进给方向夹角,并采用规则形状阴极开展直流电解加工和脉冲振动耦合电解加工工艺对比试验,以优选合适的微分方程模拟复杂型腔在上述加工模式下的成形过程。研究成果已应用于闭式整体叶盘叶间流道的电解加工。Electrochemical machining(ECM)is suitable for machining parts with complex cavities and made by material that hard to cut.However,allowance distribution of complex cavities during ECM still needs to be researched further.To solve the problems that angles between normal direction and feeding direction are different at points on cathode surface,making forming process changed,differential equations of machining gap at points with specific angles were constructed to simulate different angles between normal direction and feeding direction.Cathodes with regular shapes were used to carry out contrastive experiments of direct current ECM and pulse-vibration ECM to choose suitable differential equations to simulate forming process of complex cavity under the above machining modes.Achievement of research has been used in efficient machining of integral shrouded blisk channels.

关 键 词：复杂型腔 电解加工 成形规律 加工间隙 数值分析 整体叶盘 

分 类 号：TG662[金属学及工艺—金属切削加工及机床]