Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Micro Electrochemical Machining of Tungsten Carbide

초경합금의 미세 전해 가공

  • 최세환 (서울대학교 기계항공공학부) ;
  • 주종남 (서울대학교 기계항공공학부) ;
  • 김보현 (서울대학교 기계항공공학부)
  • Published : 2006.12.01
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Abstract

Micro machining of tungsten carbide by electrochemical machining was studied. In ECM, machining conditions and electrolyte should be chosen carefully according to the property of workpiece materials. In this paper, sulfuric acid and nitric acid were used for tungsten carbide machining and machining characteristics were investigated according to machining conditions such as electrolyte, workpiece potential and applied pulse voltage. By using mixture of sulfuric acid and nitric acid, micro structures with sharp edge and good surface quality were obtained. Micro electrochemical turning was also introduced to fabricate micro shafts.

Keywords

References

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