Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Tungsten Wire Micro Electrochemical Machining with Ultra Short Pulses

텅스텐 와이어 초단 펄스 미세 전해가공

  • 신홍식 (서울대학교 기계항공공학부) ;
  • 김보현 (안동대학교 기계공학부) ;
  • 주종남 (서울대학교 기계항공공학부)
  • Published : 2007.06.01
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Abstract

Tungsten wire micro electrochemical machining (W-wire micro ECM) with ultra-short pulses enables precise micro machining of metal. In wire micro ECM, platinum wire has been used because it is electrochemically stable. However, the micro metal wire with low strength is easily deformed by hydrogen bubbles which are generated during the machining. The wire deformation decreases the machining accuracy. To reduce the influence of hydrogen bubbles, in this paper, the use of tungsten wire was investigated. To improve machining accuracy, suitable pulse conditions which affect generation of bubbles were also investigated. The tungsten wire micro ECM can be applied to the fabrication of various shapes. Using this method, various micro-parts and shapes were fabricated.

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References

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