- 축대칭 압출 공정에서 상계법을 이용한 금형 접족면압의 계산
- ㆍ 저자명
- 최영,여홍태,허관도,Choi. Young,Yeo. Hong-Tae,Hur. Kwando
- ㆍ 간행물명
- 한국정밀공학회지
- ㆍ 권/호정보
- 2004년|21권 12호|pp.133-139 (7 pages)
- ㆍ 발행정보
- 한국정밀공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
In general, the contact pressure to the die cannot be easily determined by using upper bound solution. Recently, the authors have proposed the method determining the contact pressure with the upper bound solution for the forming with the plane stain plastic deformation. In this paper, the method is applied to an axisymmetric forward extrusion process. The contact pressure to the die of the axisymmetric extrusion has been determined with the upper bound solution and compared with the result of rigid plastic FEM. The optimal semi-angles of die have been obtained minimizing the relative contact pressure to die fur the extrusion ratio.