Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Process Design for Improving Tool Life in Hot Forging Process

열간 단조 공정에서 금형 수명 향상을 위한 공정 설계

  • 이현철 (부산대학교 일반대학원) ;
  • 김병민 (부산대학교 정밀 정형 및 금형가공 연구소) ;
  • 김광호 (부산대학교 무기재료공학과)
  • Published : 2003.02.01
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Abstract

This paper explains the process design for improving tool life in the conventional hot forging process. The thermal load and the thermal softening are happened by contact between the hotter billet and the cooler tools in hot forging process. Tool life decreases considerably due to the softening of the surface layer of a tool was caused by a high thermal load and long contact time between the tools and the billet. Also, tool life is to a large extent limited by wear, heat crack and plastic deformation in hot forging process. Above all, the main factors which affect die accuracy and tool life we wear and the plastic deformation of a tool. The newly developed techniques for predicting tool life are applied to estimate the production quantity for a spindle component and these techniques can be applied to improve the tool life in hot forging process.

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References

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