Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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An Experimental Study on Tool Wear of Small Diameter Endmill for High Speed Milling of Hardened Mold Steel

고경도 금형강의 고속가공시 소직경 볼엔드밀의 마모에 대한 실험적 연구

  • 양진석 (한국생산기술연구원 정밀금형팀) ;
  • 허영무 (한국생산기술연구원 정밀금형팀) ;
  • 정태성 (재영솔루텍(주) 플라스틱응용기술 연구소)
  • Published : 2006.02.01
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Abstract

High speed milling experiment on the hardened mold steel (CALMAX at hardness of HRC 55) is carried out using small diameter ball endmills. Tool lift and wear characteristics under the various machining parameters are investigated Effect of dynamic runout on the wear of the tool is also studied. For most of the cases, catastrophic chipping of tool edge is not observed and uniformly distributed wear on the flank surface of the tool is obtained. It is found that lower rate of tool wear is obtained as the cutting speed is increased. Also, high pick feed rate is found to be more favorable in terms of the tool wear and material removal rate.

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References

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