Pulsed Micro-Electrochemical Machining Technology


Article Preview

This research work aims to explore the feasibility of applying electrochemical machining (ECM) to micromachining. An experimental setup for micro-ECM has been developed. Lower machining voltage, lower concentration of passivity electrolyte, high-frequency short-pulse power supply and micro tool electrode rotating at high speed have been synthetically adopted to localize the dissolution area in micro-ECM, so the machining gap can be kept at about 10 μm and the better resolution of machined shape is achieved. A micro-hole with 45μm diameter is drilled on the stainless steel foil with 100μm thickness. A new approach of fabricating microstructure by micro-ECM milling with a simple micro electrode is proposed, and the micro beam with width of about 50μm which has high precision is fabricated by micro-EC milling on the stainless steel foil (1Cr18Ni9Ti) with 300μm thickness. A mathematics model has been established, which can be used to simulate the process of shaping workpieces in the process of micro-ECM.



Edited by:

Shen Dong and Yingxue Yao




X. H. Li et al., "Pulsed Micro-Electrochemical Machining Technology", Key Engineering Materials, Vol. 339, pp. 327-331, 2007

Online since:

May 2007




[1] R. Schuster, V. Kirchiner, P. Allongue and G. Ertl: Science, Vol. 289 (2000), pp.98-101.

[2] M. Kock, V. Kircher and R. Schuster: Electrochimica Acta, Vol. 48 (2003), pp.3213-3219.

[3] K. Chikamori: Int. J. Japan Soc. Pre. Eng., Vol. 32 (1998), p.2.

[4] Y. Li, Y.F. Zheng, G. Yang and L.Q. Peng: Sensors and Actuators, Vol. 108 (2003), pp.144-148.