금속분말 혼합체의 압력의존 항복모델과 유한요소법을 이용한 금형압분 공정 시 고형화 해석
Pressure-Dependent Yield Model for Metallic Powder Mixtures and Their Densification Behavior During Die Compaction as Analyzed by the Finite Element Method
윤승채(현대하이스코 기술연구소); 김택수(한국생산기술연구원(인천)); 강승구(신한다이아몬드 공업(주)); 김형섭(포항공과대학교)
47권 9호, 567~572쪽
초록
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.
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.
- 발행기관:
- 대한금속·재료학회
- 분류:
- 재료공학