Papers by Keyword: Pulse Electrochemical Finishing PECF

Abstract: In this paper, Pulse electrochemical finishing (PECF) and pulse electrochemical compound finishing (PECCF) are introduced. The main technical parameters, including in intereletrode gap, current density, compositions of steel materials and pulse parameters on the resulting surface finish were studied. PECF and PECCF on different surface including plane and shafts surface are done. Well-pleasing experimental results is gained. Results indicate that PECF and PECCF can lead to both good smoothing efficiency and surface finish simultaneity at low costs.

Abstract: Top-quality surfaces are obtained by means of pulse electrochemical finishing (PECF) in neutral electrolyte. The machining principles and advantages of PECF are analyzed. Moreover, the technique are applied to some typical cases such as sheeny lettering, fine and deep holes and complex shaped surface finishing, gear surface finishing that all of them are more difficult to be machined by the traditional finishing technologies. The results show mirror-like surfaces could be gained by PECF and the surface roughness values could be reduced from more than Ra 0.8 μm to less than Ra 0.08 μm within 1~2 seconds. It’s hoped that PECF will play an important role in finishing key parts in the modern manufacturing industries.

Abstract: This paper deals with a new finishing technique called pulse electrochemical finishing technology (PECF) and its application to column surface of carbon steel. PECF makes use of pulse current and neutral electrolyte. There is nearly no wear of the cathode, and nearly no cutting force or cutting heat, which may result in the deformation of wokpiece. The principle of the technique is put forward, and the equipment as well as a typical finished sample is shown in this paper. The key technological parameters of PECF are studied and the favorable values are presented. With the moving cathode PECF technology, the roughness value of ground surface could be reduced from Ra 0.217～1.13μm to Ra 0.041μm. Combined with NC technology, PECF could be applied to the finishing field widely.