Trajectory control strategy of cathodes in blisk electrochemical machining

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机构：
[1] [1,Zhu, Dong
[2] Zhu, Di
[3] Xu, Zhengyang
[4] Zhou, Laishui
来源：
Zhu, D. (zhudong@nuaa.edu.cn) | 1600年 / Chinese Journal of Aeronautics卷 / 26期
关键词：
A turbine blisk; which combines blades and a disk together; is one of the most important components of an aero engine. In the process of blisk electrochemical machining (ECM); the sheet cathode; which is usually used as a tool electrode; has a complicated structure. In addition to that; the channel between the adjacent blades is narrow and twisted; so interference is apt to happen when the sheet cathode feeds into the channel. Therefore; it is important to choose suitable trajectory control strategy. In this paper; a new trajectory control strategy of the sheet cathode is presented and corresponding simulation analysis is conducted on the basis of an actual blisk model. The simulation results demonstrate that the sheet cathode can feed into the channel by a spatial line trajectory without interference. Moreover; the verification experiments are carried out according to the simulation. The experimental results show that the cathode can move into the channel without interference. It is verified that the new trajectory control strategy is correct and can be used in the blisk ECM process successfully. © 2013 Production and hosting by Elsevier Ltd. on behalf of CSAA & BUAA;
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