Sheet metal-forming processes are one of the major areas of product manufacturing. The wide range of applications includes domestic products, utensils, automotive components, aerospace, and shipbuilding. The strain distribution during forming depends on the flow of material and properties. There are various zones of forming, including biaxial stretching, plain strain, uniaxial tension, and pure shear. Excessive stretching in a radial direction results in thinning. Excessive material accumulation in a circumferential direction leads to thickening. Ideally, the thickness must remain constant prior to and after forming. Multiobjective process optimization has been achieved in the proposed research work to optimize thinning and wrinkling for an automotive component connector. Numerical experimentation has been carried out with design of experiments to understand the influential parameters.

A linear regression model has been proposed for both thinning and wrinkling. A constrained multiobjective problem has been formed.