Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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The Characteristics of Damaged Layer According to Depth of Cut in Micro Endmilling

마이크로 엔드밀링에서 가공깊이에 따른 가공변질층의 특성

  • 이종환 (부산대학교 대학원 기계공학부) ;
  • 권동희 (부산대학교 대학원 기계공학부) ;
  • 박진효 (부산대학교 대학원 기계공학부) ;
  • 김병민 (부산대학교 대학원 기계공학부) ;
  • 정융호 (부산대학교 대학원 기계공학부) ;
  • 강명창 (부산대학교 하이브리드소재 솔루션 국가핵심연구센터(NCRC)) ;
  • 이성용 (한국폴리텍VII 부산대학 컴퓨터응용기계과) ;
  • 김정석 (부산대학교 기계공학부/정밀정형 및 금형가공연구소)
  • Published : 2007.10.15
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Abstract

The study on damaged layer is necessary for machinability improvement in micro machining. The damaged layer in metal cutting is derived from plastic deformation and transformation of metal structure. The damaged layer affects micro mold life and micro machine parts. In this study, the damaged layer of micro machined surface of copper is evaluated according to various machining condition. The damaged layer structure and metallurgical characteristics are measured by optical microscope, and evaluated by cutting forces and surface roughness. The scale of this damaged layer depends on cutting process parameters and machining environments. By experimental results, depth of damaged layer was increased with increasing of cutting depth, also the damaged layer is less occurred in down-milling compared to up-milling during micro endmilling operation.

Keywords

References

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