Abstract

This paper addresses the design and fabrication of desktop die-sinking dry electrical discharge machining (EDM) system and its experimental performance analysis. The developed desktop dry EDM machine has the horizontal configuration with the size of 300×200×260㎜. The experimental performance analysis is conducted to investigate the effects of EDM conditions and dielectric gas temperature on the surface roughness of EDMed slots and number of EDM sparks. The experimental results demonstrate that low feed rate and large electrode displacement are good for better surface roughness and more number of EDM sparks. In addition, low temperature of dielectric gas results in better surface roughness.

• Keywords: Desktop Die-Sinking Dry EDM Machine (데스크톱 형조 건성방전가공기),Dry EDM Milling (건성 방전밀링가공),EDM Condition (방전가공조건),Dielectric Gas Temperature (절연기체온도),Surface Roughness (표면거칠기)