Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Investigation of Micro Cutting Characteristics for Tungsten-Carbide Green Part

초경 그린파트 마이크로 절삭가공 특성 분석

  • 김건희 (한국생산기술연구원 금형.성형연구부) ;
  • 정우철 (한국생산기술연구원 금형.성형연구부) ;
  • 윤길상 (한국생산기술연구원 금형.성형연구부) ;
  • 허영무 (한국생산기술연구원 금형.성형연구부) ;
  • 권영삼 (세타텍) ;
  • 조명우 (인하대학교 기계공학부)
  • Received : 2010.03.24
  • Accepted : 2010.04.12
  • Published : 2010.06.01
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Abstract

Tungsten-carbide as typical difficult-to-cut material has excellent mechanical properties such as high thermal resistivity, mechanical strength and chemical durability. However, it is next to impossible for tungsten-carbide to be fabricated the needed parts by cutting process. In this study, for establishing the micro fabrication method of tungsten-carbide for micro injection or compression molding core, the investigation on micro cutting characteristics of tungsten-carbide green part which is made by powder injection molding process and easy to cut relatively was performed. For this, micro endmilling experiments of tungsten-carbide green part were performed according to various cutting conditions. Finally, the wear trend of micro endmill and the appearance of micro rib according to feed-rate and cutting depth per step were analyzed through SEM images of micro cutting feature and microscope images of micro tools.

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References

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