Fabrication of multiple electrodes by reverse EDM and their application in micro ECM

Abstract

Micro electrodes of various shapes were fabricated by reverse electrical discharge machining (REDM). The machining characteristics of REDM were investigated under varying capacitances and applied voltages, and optimal conditions for stable machining were suggested. Multiple-tipped micro electrodes fabricated by REDM were then introduced for micro electrochemical machining in order to increase productivity over single micro electrodes. By using various multiple electrodes, micro hole arrays, grooves and channels were machined on stainless steel.