S1304-2-1 Simultaneous Machining of Micropin and Micro Hole with Composite Power Supply

Abstract

In recent micrcrEDM processes various kinds of thin tool manufacturing methods, including the wire electrical discharge grinding (WEDG) have been proposed to satisfy the growing need for very thin tools. This study describes the simultaneous machining of micropin and micro hole with composite power supply using zinc alloy tool electrode. The zinc alloy enters the state of complete wear according to an electrical condition. This condition was selected to the micropin forming, and the hole machining was executed according to the condition with comparatively low electrode wear.