Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Performance Evaluation on the Endmill of High Speed Machining for Selection of Tungsten Carbide (WC-Co) Material

초경소재 선정을 위한 고속가공의 엔드밀 성능 평가

  • Kwon, Dong-Hee (School of Mechanical Engineering, Pusan National University) ;
  • Kim, Jeong-Suk (School of Mechanical Engineering, Pusan National University) ;
  • Kim, Min-Wook (National Core Research Center for Hybrid Materials Solution, Pusan National University) ;
  • Jeong, Young-Keun (National Core Research Center for Hybrid Materials Solution, Pusan National University) ;
  • Kang, Myung-Chang (National Core Research Center for Hybrid Materials Solution, Pusan National University)
  • 권동희 (부산대학교 기계공학부) ;
  • 김정석 (부산대학교 기계공학부) ;
  • 김민욱 (부산대학교 하이브리드소재 솔루션 국가핵심연구센터) ;
  • 정영근 (부산대학교 하이브리드소재 솔루션 국가핵심연구센터) ;
  • 강명창 (부산대학교 하이브리드소재 솔루션 국가핵심연구센터)
  • Published : 2008.10.28
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Abstract

To satisfy the demand of higher cutting performance, mechanical properties with tungsten carbide (WC-Co) tool materials were investigated. Hardness and transverse rupture strength with WC grain size, Co content and density were measured. Compared to H, K, and S manufacture maker as tungsten carbide (WC-Co) tool materials were used for high-speed machining of end-milling operation. The three tungsten carbide (WC-Co) tool materials were evaluated by cutting of STD 11 cold-worked die steel (HRC25) under high-speed cutting condition. Also, tool life was obtained from measuring flank wear by CCD wear measuring system. Tool dynamometer was used to measure cutting force. The cutting force and tool wear are discussed along with tool material characteristics. Consequently, the end-mill of K, H manufacture maker showed higher wear-resistance due to its higher hardness, while the S maker endmill tool showed better performance for high metal removal.

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