Research on pulse electrochemical finishing using a moving cathode
by Jinjin Zhou, Guibing Pang, Hui Wang, Wenji Xu
International Journal of Manufacturing Technology and Management (IJMTM), Vol. 7, No. 2/3/4, 2005

Abstract: To improve the surface quality of parts with frictional pair, a finishing method – Pulse Electrochemical Finishing (PECF) using a Moving Cathode is studied in this paper. By experimentation we find: machining with an interelectrode gap as small as possible could smoothen the anode surface quickly; with an invariable gap size, the current density and the machining time are two key parameters influencing the smoothening effect; there is a critical current density above which a bright surface could be obtained, and this process could finish a large surface area over the critical current with a low power supply, which is helpful to get a lustrous surface. As an example, the inner surface of a part is finished. The result shows that the surface roughness value (Ra) reduces from 0.5 to 0.065 µm and a mirror-like surface is obtained.

Online publication date: Sun, 17-Apr-2005

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