소성∙가공 (Transactions of Materials Processing)

  • 제11권4호
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  • Pages.355-362
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  • 2002
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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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보강링을 갖는 냉간 압출 금형 세트의 탄성해석

Elastic Analysis of Cold Extrusion Die Set with Stress Ring

  • 안성찬 (현대중공업 산업기술연구소 구조연구실) ;
  • 이근안 (한국생산기술연구원 마이크로성형팀) ;
  • 김수영 (한국과학기술원 기계공학과 전산재료성형설계 연구실) ;
  • 임용택 (한국과학기술원 기계공학과 전산재료성형설계 연구실)
  • 발행 : 2002.08.01
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초록

In this study, an axi-symmetric finite element program for elastic analysis of the die set shrink fitted in cold extrusion was developed. The geometrical constraint according to shrink fit was enforced by employing the Lagrange multiplier method. The numerical results for strain and stress distributions in the die set including single and multi stress rings assembled by shrink fit were compared well with the Lame's equation for thick-walled solution available in the literature. To extend the applicability of the analysis program developed, various cases without or with stress ring and with pre-stress applied on stress ring were numerically investigated as well. This numerical approach enables the optimization study to determine optimal dimensions of die set to improve tool life for practical use in industry.

키워드

참고문헌

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  12. 한국소성가공학회 '99추계학술대회 논문집 냉간 단조용 금형의 탄성변형 예측 이정환;이영선;최종웅;강종훈
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피인용 문헌

  1. A Study of the Upper Bound Analysis of Extrusion Process with Torsion vol.32, pp.4, 2008, https://doi.org/10.5916/jkosme.2008.32.4.578