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Experimental Investigation on Fabrication of Inverted Cone-shaped Micro-electrode by Using Electrochemical Machining

Xie Yanfu,Liu Zhuang,Chen Wei(Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)  
A new process of producing complex shape micro-electrode was proposed based on electrochemical etching principle.The electric field distribution between the anode and cathode was changed by insulation on the end of the anode, which can influence the local conductivity of the anode,thus the complex shape micro-electrode will be produced.In this paper,the inverted cone-shaped micro-electrode has been successfully fabricated by using this method,and through the experimental study on micro-hole electrochemical machining using cylindrical and inverted cone electrode,proved that the inverted cone electrode could achieve much higher machining locality in micro-ECM.
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