Abstract
An innovative and relatively recent development in sheet metal products is the use of laminated metal as the workpiece. The application of a polymer/adhesive between two metal sheets yields clear acoustic advantages over conventional sheet stock. Product manufacturing with polymer laminated steels, however, presents difficulties associated with forming and bending operations, mainly in predicting and compensating for springback. This paper describes a research program focused on bending operations applied to laminated steel products. It si shown that the springbcak factor decreases with decreasing punch/die clearance and die radius as well as increasing punch depth, but that sidewall curl occurs regularly in these materials.
