A novel approach to springback control of high-strength steel in cold roll forming

To high-precision control the springback of high-strength steel (HSS) in cold roll forming, the 3D finite element analysis (FEA) models of hat-shaped sectional HSS roll forming process were built with the professional roll forming software COPRA. Two conventional angle adjusting methods for HSS, i.e., the Namaste-type and the Platform-type applied widely for complex-sectional normal steel, easily lead to the edge waves and asymmetric behavior,...