Determination of material parameters for computer simulation of superplastic forming processes

摘要

In in order to analyzed and simulate the complex super plastic forming process by computer, a method of equal height bulging for determining material parameters m and K of the superplastic alloy is presented. The formulae re- Lated to the method are deduced in this paper. the accu- Racy of the method is available for evaluating the examples Used in simulating the superplastic sheet-metal bulging processes.