Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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Powder Injection Molding Technique of Fabricating Cemented Tungsten Carbide Balls for Milling and Dispersing Nano-Powder

나노분말 분쇄 및 분산용 고성능 초경합금 볼의 제조를 위한 분말사출성형 공법

  • 정성택 ((주) 쎄타텍) ;
  • 조주현 (경상대학교 기계공학과) ;
  • 이민철 (경상대학교 기계항공공학부 2 단계 BK21 항공기부품기술연구소) ;
  • 권영삼 ((주) 쎄타텍) ;
  • 전만수 (경상대학교 기계항공공학부)
  • Published : 2007.05.30
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Abstract

We present a powder injection molding technique of fabricating cemented tungsten carbide(WC) balls for milling and dispersing nano-powder in this paper. The conventional powder metallurgy approach is investigated to reveal its drawbacks of density non-homogeneity. New procedures of powder injection molding for the homogeneous high-precision WC balls, involving the binding process, powder injection molding process and sintering process, are presented in detail. Each process is investigated empirically and numerically to obtain its engineering information, which can used for process optimization.

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