소성∙가공 (Transactions of Materials Processing)

  • 제12권6호
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  • Pages.536-541
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  • 2003
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  • 1225-696X(pISSN)
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  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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열간포머 단조공정중 스프링부착 금형을 가진 피어싱과 트리밍 동시공정의 유한요소해석

Finite Element Analysis of a Piercing and Trimming Process Having a Spring-Attached Die in Hot Former Forging

  • 문호근 (FAG 한화베어링(주) 연구소) ;
  • 정재헌 (FAG 한화베어링(주) 연구소) ;
  • 전만수 (경상대학교 기계항공공학부)
  • 발행 : 2003.10.01
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초록

In this paper, the rigid-viscoplastic finite element method is employed together with an iteratively force-balancing method to analyze a piercing and trimming process with a spring-attached die in hot former forging. An actual piercing and trimming process with a spring-attached die is investigated in detail and a generalized analysis model is proposed. A multi-stage hot former forging process is simulated under various spring constants. The analyzed results are discussed in order to investigate the effects of spring constants on the metal flow lines and the formed shapes. Then an optimal piercing and trimming process in hot former forging is devised.

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참고문헌

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