Longitudinal strain development in Chain-die forming AHSS products: Analytical modelling, finite element analysis and experimental verification

Chain-die forming is a new sheet metal forming technology which has been developed as a supplement to roll forming in fabricating Advanced High-Strength Steel (AHSS) products. It has an advantage by reducing redundant plastic deformation during the forming process. The implementation is achieved through increasing the deformation length, via increasing the virtual roll radii. The rolls with large radii are assemblies of shaped die-blocks through...