Title: Generation of erosion profile of through hole in electrochemical boring using a stepwise moving electrode

Authors: H. Hocheng, P.S. Kao, S.C. Lin

Addresses: Department of Power Mechanical Engineering, National Tsing-Hua University, 300 Hsinchu, Taiwan, ROC. ' Department of Power Mechanical Engineering, National Tsing-Hua University, 300 Hsinchu, Taiwan, ROC. ' Department of Power Mechanical Engineering, National Tsing-Hua University, 300 Hsinchu, Taiwan, ROC

Abstract: Electrochemical machining has been increasingly recognised for its micromachining applications. A process to erode a hole of hundreds of micronmetres on the metal surface using a moving electrode is investigated in the current paper. This study provides the prediction of the produced hole enlargement and taper under the applied machining conditions during the process. A computational model is presented to illustrate how the machined profile develops as the time elapses and the electrode gap changes. The analysis is based on the fundamental law of electrolysis and the mathematical integral over a tool. The effectiveness of the model is examined by experiments using several schemes of the electrode movement.

Keywords: ECM; erosion profile; micro-hole; moving electrode; through hole; electrochemical boring; electrochemical machining; micromachining; hole enlargement; hole taper; non-traditional machining; advanced machining.

DOI: 10.1504/IJMTM.2005.006844

International Journal of Manufacturing Technology and Management, 2005 Vol.7 No.2/3/4, pp.268 - 286

Published online: 17 Apr 2005 *

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