한국소성가공학회:학술대회논문집 (Proceedings of the Korean Society for Technology of Plasticity Conference)

한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
권호 표지

다공성 소결금속의 단조한계해석

ANALYSIS OF FORGING LIMIT FOR SINTERED POROUS METALS

  • 한흥남 (서울대학교 금속공학과 및 신소재 공동연구소) ;
  • 오규환 (서울대학교 금속공학과 및 신소재 공동연구소) ;
  • 이동녕 (서울대학 교 금속공학과 및 신소재 공동연구소)
  • 발행 : 1995.06.01

⟨ 이전 논문 다음 논문 ⟩

초록

The forging limit curves of sintered porous metals have been calculated, in terms of the two principal strains, by the Lee-Kuhn initial imperfection model. The various yield functions for porous metal have been applied to the initial imperfection model. When the value of initial imperfection ratio equals the value of initial relative density of the sintered porous metals, the calculation values are in good agreement with the measured data. The slopes of the forging limit curves are about 0.5 as in the case of non-porous metals.

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