Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Prediction of Die Wear in Extrusion and Wire Drawing

축대칭 압출 및 인발공정 중의 금형마멸예측

  • Kim, Tae-Hyeong (Dept.of Mechanical Design Engineering, Graduate School of Busan National University) ;
  • Kim, Byeong-Min (Sheet Products Process Research Group, Dept.of Mechanical Engineering, Busan National University) ;
  • Choi, Jae-Chan (Sheet Products Process Research Group, Dept.of Mechanical Engineering, Busan National University)
  • 김태형 (부산대학교 대학원 기계설계공학과) ;
  • 김병민 (부산대학교 정밀정형 및 금형가공 연구센터) ;
  • 최재찬 (부산대학교 정밀정형 및 금형가공 연구센터)
  • Published : 1996.10.01
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Abstract

In cold forming processes, due to high working pressure action on the die surface, failure mechanics must be considered before die design. One of the main reasons of die failure in industrial application of metal forming technologies is wear. Die wear affects the tolerances of formed parts, metal flow and costs of process etc. The only way to control these failures into devlop methods which allow prediction of die wear and which are suited to be used in the design state in order to optimize the process. In this paper, the forming propcesses that involve cold forward extrusion and wire drawing were simulated by rigid plastic finite element method and its output were used for predicting die wear by Archard wear model. The simulation results were compared with the measured worn dies.

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