Abstract

Influence of final thickness distribution in superplastic forming processes on mechanical properties of the product becomes very crucial. We should improve the thickness distribution of products by combining process parameters adequately In this paper we adopt a non-linear optimization technique for optimal process design of superplastic forming. And optimum design variable which makes the most adequate thickness distribution in combined stretc/blow forming and blow forming is predicted by this optimization scheme and rigid-viscoplastic finite element method.

Keywords

• Optimal Design;
• Superplastic Stretch/Blow Forming;
• Blow Forming;
• Steepest Descent Method

• 최적설계;
• 초소성 신장/블로우 성형;
• 블로성형;
• 최대경사법;