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Optimal Shape Design of a Container Under Hot Isostatic Pressing by a Finite Element Method

열간등가압소결 공정에서 유한요소법을 이용한 컨테이너 형상의 최적설계

  • Published : 2000.09.01

Abstract

Near net shape forming of 316L stainless steel powder was investigated under hot isostatic pressing. To simulate densification and deformation of a powder compact in a container during hot isostatic pressing, the constitutive model of Abouaf and co-workers was implemented into a finite element analysis. An optimal design technique based on the design sensitivity was applied to the container design during hot isostatic pressing. The optimal shape of the container was predicted from the desired final shape of a powder compact by iterative calculations. Experimental data of 316L stainless steel powder showed that the optimally designed container allowed precise forming of the desired powder compact during hot isostatic pressing.

Keywords

Design Sensitivity;Finite Element Method;Hot Isostatic Pressing;Near-Net-Shape;Optimal Design

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