in this paper, formation of wrinkling in bimetal deep drawing process has been investigated by the analytical, numerical and experimental methods. the effects of width of flange, fillet radii of matrix and punch, clearance of blank holder, contact conditions and relative thickness of two sheets on the number and height of wrinkle waves are studied. clearance and contact conditions have the grea...

A cylindrical deep drawing test was conducted for the purpose of improving drawability, product accuracy, and quality in warm using a superplastic material with large strain rate dependence. Then, effects blank holding force (BHF) punch speed (SPD) on flange wrinkle behavior wall thickness distribution were investigated by experiments theoretical analysis. Zn-22Al-0.5Cu-0.01Mg alloy SPZ2 sheet ...