Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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FEM Analysis of Void Closure Behavior during Open Die Forging of Rectangular Billets

사각 빌렛 자유단조시 내부기공폐쇄거동 유한요소해석

  • 천명식 (포항산업과학연구원 압연프로세스연구팀) ;
  • 류종수 (부산대학교 정밀기계공학과/정밀정형 및 금형가공연구센터) ;
  • 문영훈 (부산대학교 정밀기계공학과/정밀정형 및 금형가공연구센터)
  • Published : 2004.04.01
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Abstract

Finite element analysis of open die forging process to make rectangular billet has been performed in this study. Three dimensional rigid-plastic finite element method was used to analyze the effects of process variables, forging pass design and die configurations on the void closure phenomena to maximize the internal deformation for better structural homogeneity and center-line consolidation of the rectangular billet. The effect of anvil width ratio, anvil pitch, anvil shape and number of pass has been estimated by the degree of void closure ratio. Although it is difficult to optimize process parameters in the operational environments, favourable process conditions are suggested for better product quality.

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References

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Cited by

  1. Void Closing Conditions of Large Ingot by Path Schedules vol.19, pp.8, 2010, https://doi.org/10.5228/KSTP.2010.19.8.480
  2. Comparative Study on Pore Closing in Open Die Forging by Conventional Forging Press and Radial Forging Machine vol.19, pp.7, 2010, https://doi.org/10.5228/KSTP.2010.19.7.399