한국소성가공학회:학술대회논문집 (Proceedings of the Korean Society for Technology of Plasticity Conference)
- 한국소성가공학회 2005년도 금형가공,미세가공,플라스틱가공 공동 심포지엄
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- Pages.114-120
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- 2005
고경도 금형강의 고속가공시 소직경 볼엔드밀의 마모에 대한 실험적 연구
An Experimental Study on Tool Wear of Small Diameter Endmill for High Speed Milling of Hardened Mold Steel
- 발행 : 2005.09.01
초록
High speed milling experiment on the hardened mold steel (CALMAX at hardness of HRc 55) is carried out using small diameter ball endmill. 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 tool wear and material removal rate.