Abstract
The 5XXX and 6XXX series aluminium alloy sheets are compared to steel sheets with regard to the mechanical characteristics affecting the elastic springback after plastic deformation. Elasto-plastic theory of bending is recalled for this purpose. The analysis of shape fixability is extended to the case of the stamping of largely curved panels. Full size press forming trials representative of a conventional stamping schedule are carried out. The amplitude of springback after deep-drawing, trimming and down-flanging passes is determined by 3D metrology measurements. The effect of tool design and of stamping process parameters are examined. This study leads to guidelines for the successful stamping of aluminium outer body panels.