Flow field design and experimental investigation of electrochemical machining on blisk  

作　　者：Jianwei GUO Dong ZHU Di ZHU 

机构地区：[1]College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China

出　　处：《Chinese Journal of Aeronautics》2022年第8期295-303,共9页中国航空学报（英文版）

基　　金：co-supported by the National Nature Science Foundation of China(No.91860135);National Natural Science Foundation of China for Creative Research Groups(No.51921003);National Science and Technology Major Project(No.2017-VII-0004-0097)。

摘　　要：Flow field is a crucial factor to influence the stability and surface quality in the electrochemical machining(ECM)of blisks.A four-way flow mode was proposed to eliminate mixing regions of electrolyte at the leading and tailing edges.Two flow field models were described separately in this report:a W-shaped flow mode and a four-way flow mode.The flow field was analyzed through a finite element method.The results showed that,in comparison with the W-shaped flow mode,the distribution of electrolyte flow was more uniformed and the mixed region in the flow channel was improved.The pressure of the leading and tailing edges inlets was optimized,and optimal pressure of 0.6 MPa was determined.In addition,verification experiments were performed,and the results showed that the stability,efficiency,and quality of the profiles of the blisk blade manufactured by ECM were enhanced in the new flow mode.

关 键 词：BLISK Electrochemical machining ELECTROLYTE Flow field Surface quality 

分 类 号：V263[航空宇航科学与技术—航空宇航制造工程]