A Study on the Characteristics of Electrode Fabrication for Micro Hole-making

미세 구멍가공을 위한 전극성형 가공특성에 관한 연구

  • 이주경 (한국산업기술대학교 기계공학과) ;
  • 이종항 (한국산업기술대학교 기계공학과) ;
  • 박철우 (한국산업기술대학교 기계공학과) ;
  • 조웅식 (한국산업기술대학교 기계설계공학과)
  • Published : 2007.11.01


Micro-EDM technology (or the manufacture of miniature parts is used to make a micro hole. Two electrode shaping methods, mechanical electrode grinding and WEDG technique, have been studied. In this study, an electrode shaping method by using previously machined hole is introduced in order to obtain an optimal hole-making condition. Key factors such as applied voltage, capacitance, feedrate, and hole-dimension have an influence on the fabricating error of electrode shaping, which are taper ratio of a hole, electrode form accuracy, and electrode surface. Therefore, we try to investigate the optimal fabricating of electrode shaping from various experiments. Results from experiments, it was able to minimize the electrode fabricating error as voltage increases, and also applied feedrate and capacitance decreases.


Micro-EDM;Micro Electrode;Micro Hole;Micro-EDM Characteristics;EDM Error


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