Sheet metal forming is one of the most popular technologies for obtaining finished products in automotive industries. The main techniques sheet forming: microforming, warm/hot forming, incremental flexible-die Electromagnetic Electrohydraulic Spinning and Shear Spinning, Flow Forming cold forming. One stamping process. In production line Ravne VPS400 1992, we take twenty details looking quality...

Abstract In forming processes, friction is a local phenomenon influenced by the contact conditions at tool-sheet metal interface. A multi-scale model applicable for coated sheets developed boundary lubrication regime which accounts physical behavior of coating and measured surface topographies sheet tools. The patches therefore real area determined interface different loading conditions. single...

In this study, "Buckling Limit of Strain" (B.L.S.) is introduced as one of the most important limiting factors in cold roll forming process. B.L.S. is calculated by the finite element procedure. Then for two particular processes with existing analysis and experimental results, B.L.S. has been determined and evaluated. LUSAS 12.3 is used for finite element analysis. The results show that when bu...