금속분말혼합체의압력의존항복모델과유한요소법을이용한금형압분공정시고형화해석

The densification behaviors of mixtures of copper and steel powders during cold die compaction were investigated. We proposed the pressure-dependent yield function based on the rule of the mixtures of each yield function of a critical relative density type. The constitutive equations were implemente...

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Published in대한금속재료학회지 Vol. 47; no. 9; pp. 567 - 572
Main Authors 윤승채, Seung Chae Yoon, 김택수, Taek Soo Kim, 강승구, Seung Koo Kang, 김형섭, Hyoung Seop Kim
Format Journal Article
LanguageKorean
Published 대한금속재료학회 22.09.2009
Subjects
cold die compaction
constitutive equation
critical relative density model
finite element method
metallic powder mixture
pressure dependent yield function
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Summary:The densification behaviors of mixtures of copper and steel powders during cold die compaction were investigated. We proposed the pressure-dependent yield function based on the rule of the mixtures of each yield function of a critical relative density type. The constitutive equations were implemented into a finite element program (DEFORM2D) to analyze the densification and deformation behavior of powder mixtures, and the simulated results are in good agreement with the experimental results in reference studies.
Bibliography:The Korean Institute of Metals and Materials
ISSN:1738-8228