导航

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2012, Vol. ›› Issue (5): 920-927.doi: CNKI:11-1929/V.20120113.1021.002

• Material Engineering and Mechanical Manufacturing • Previous Articles     Next Articles

Wire Electrode Micro-electrochemical Machining with Tool Micro-amplitude Reciprocating Motion

YU Qia1,2, ZHU Di1, ZENG Yongbin1, ZHANG Hai1   

  1. 1. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    2. College of Mechanical and Electrical Engineering, Hohai University, Changzhou 213022, China
  • Received:2011-08-18 Revised:2011-12-22 Online:2012-05-25 Published:2012-05-24
  • Supported by:
    National Natural Science Foundation of China (51005120);Natural Science Foundation of Jiangsu Province of China (BK2010508, BE2010193); National Defense Basic Research Program(A2520110001);Aeronautical Science Foundation of China(20100852011)

Abstract: Products of electrolysis in the inter-electrode gap is one of the major factors influencing wire electrode micro-electrochemical machining precision. To enhance the efficiency of removing these products, a new method is proposed that allows the wire electrode to perform micro-amplitude reciprocating movement in the axial direction during the processing. The machining stability and accuracy can thus be improved and the machining efficiency is increased. A mathematical model is built to investigate the influence of the wire electrode travelling speed and micro-amplitude on removing the product and refreshing the electrolyte. Their effects of the electrode travelling speed and micro-amplitude on the machining accuracy and efficiency are investigated experimentally. A micro groove on an alloy is generated with the optimized parameters with a resulting surface roughness of about 0.45 μm and radius of chamfer is lesser than 8 μm。

Key words: micro-electrochemical machining, wire electrode, reciprocation motion, microstructure, elastic alloy

CLC Number: