脉动态电解加工  

Pulse dynamic electrochemical machining

作　　者：朱荻[1] 刘嘉[1] 王登勇[1] 房晓龙[1] 刘言 ZHU Di;LIU Jia;WANG Dengyong;FANG Xiaolong;LIU Yan(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,南京210016

出　　处：《航空学报》2022年第4期1-14,共14页Acta Aeronautica et Astronautica Sinica

基　　金：国家自然科学基金(51535006)。

摘　　要：电解加工在航空航天装备的核心部件制造中起到了重要作用。为了满足这些高科技产品的发展需求,它的加工精度需要进一步提高。电解加工过程中产生的氢气、温升及去除物,会显著影响加工间隙中电解液电导率的分布,并降低加工精度。脉动态电解加工将工具振动与脉冲给电优化耦合,改变了间隙状态,提高了精度和稳定性。拷贝式、旋印式、削边电极线切割式等3种脉动态电解加工形式分别对应叶片类、机匣类、榫槽类结构的加工表现出很好的工艺效果。Electrochemical Machining(ECM)plays an important role in the manufacturing of core components of aerospace equipment.To meet the development demands of these high-tech products,the machining accuracy of ECM needs to be further improved.During ECM process,hydrogen bubbles,joule heat and machining products are generated,which remarkably affects the distribution of the electrolyte conductivity in the inter-electrode gap and reduces the machining accuracy.Pulse dynamic ECM effectively change the gap state and improve the machining accuracy and stability by coupling tool vibration with pulse machining current optimally.In this paper,three kinds of pulse dynamic ECM modes containing copy-like ECM,counter-rotating ECM and wire ECM with edged electrode are proposed,which present favorable process effects on the machining of complex structures such as engine blades,casings and tenon grooves.

关 键 词：电解加工 加工精度 脉动态 整体叶盘 机匣 榫槽 

分 类 号：V263[航空宇航科学与技术—航空宇航制造工程]