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Improvement of Micro-hole EDM Efficiency using Vibration Flushing

진동기구를 이용한 미세구멍 방전가공의 효율향상

  • 손성민 (울산과학대학 기계학부)
  • Received : 2010.11.19
  • Accepted : 2011.02.10
  • Published : 2011.02.28

Abstract

Micro EDM(Electric Discharge Machining) is one of the most powerful technologies which are capable of fabricating micro-structure without any problems from high cutting force. However, there is a significant defect in the part machining with deep holes or pockets, because debris which are generated by electric discharging may frequently cause a short circuit between an electrode and workpiece material. Vibration flushing can reduce the undesirable phenomena with dynamic flow of EDM fluid in a deep and choked area. In this study, Vibration flushing with solenoid is suggested and the results show that the method can generate a remarkable EDM efficiency with high amplitude at a low frequency in comparison with current vibration flushing methods with high frequency using piezo actuators.

Keywords

Micro EDM;Vibration flushing;Material removal rate

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