초경 엔드밀의 플라즈마 이온 주입과 저온 열처리를 통한 내마멸성 향상

Enhancement of Wear Resistance by Low Heat Treatment and the Plasma Source Ion Implantation of Tungsten Carbide Tool

  • 강성기 (한국폴리텍 VII대학 창원캠퍼스 컴퓨터응용기계설계학과) ;
  • 왕덕현 (경남대학교 기계자동화공학부) ;
  • 김원일 (경남대학교 기계자동화공학부)
  • 투고 : 2010.08.06
  • 심사 : 2010.11.14
  • 발행 : 2011.04.15

초록

In this research, nitrogen plasma source ion implantation(PSII) of non-coated tungsten carbide endmill tools was conducted with low heat treatment for increasing wear resistance. After the low heat treatment of PSIIed tools to give a homogeneity of wear resistance, the surface modification of tools was analyzed by hardness test, surface roughness and cutting forces. As for the resultant cutting forces, low heat treatment in temperature of $400^{\circ}C$ and $500^{\circ}C$ is stable because of low cutting resistance. The 20-minutes heat treated tool at spindle speed 25000rpm has superiority of surface roughness, Ra of $0.420{\mu}m$ and was found to have good wear resistance. The higher hardness value was obtained by increasing temperature from $300^{\circ}C$ to $600^{\circ}C$ for PSIIed tools with low heat treatment. As the PSIIed tools under 10minutes at temperature of $600^{\circ}C$ have the highest hardness as Hv of 2349.8, It was analyzed that temperature processing give much influences on hardness.

키워드

참고문헌

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