Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Machining characteristics on ultrasonic vibration assisted micro-electrical discharge machining of carbon-nanotube reinforced conductive Al2O3 composite

전도성을 가지는 탄소나노튜브강화 알루미나복합소재의 마이크로방전가공에서 초음파진동 부가에 의한 가공특성

  • 강명창 (부산대학교 융합학부) ;
  • 탁현석 (포스코(광양) 후판기술개발팀) ;
  • 이창훈 (부산대학교 융합학부) ;
  • 김남경 (경남과학기술대학교 자동차공학과)
  • Received : 2014.12.04
  • Accepted : 2014.12.22
  • Published : 2014.12.31
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Abstract

Micro-holes of conductive ceramic are required in micro structures. Micro-electrical discharge machining (Micro-EDM) is an effective machining method since EDM is as process for shaping hard metals and complex-shaped holes by spark erosion in all kinds of electro-conductive materials. However, as the depth of micro hole increases, the machining condition becomes more unstable due to inefficient removal of debris between the electrode and the workpiece. In this paper, micro-EDM was performed to evaluate machining characteristic such as electrode wear, machining time, taper angle, radial clearance with varying voltage and ultrasonic vibration on 10 vol.% Carbon-nanotube reinforced conductive $Al_2O_3$ composite fabricated by spark plasma sintering in previous research.

Keywords

References

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