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Vol.47, No.9, 567 ~ 573, 2009
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| Title |
| Pressure-Dependent Yield Model for Metallic Powder Mixtures and Their Densification Behavior During Die Compaction as Analyzed by the Finite Element Method |
| 윤승채 Seung Chae Yoon , 김택수 Taek Soo Kim , 강승구 Seung Koo Kang , 김형섭 Hyoung Seop Kim |
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| Abstract |
| 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. |
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| Key Words |
| pressure dependent yield function, metallic powder mixture, cold die compaction, constitutive equation, critical relative density model, finite element method |
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