sheet electromagnetic forming using convex punch instead of convave die

High speed and absence of a precise control over pressure distribution confine sheet electromagnetic forming into a die to simple shapes having shallow depth. it is possible to reach a higher depth by using a convex punch instead of a concave die. in this study, sheet electromagnetic forming on a punch and sheet electromagnetic forming into a die are investigated. the electromagnetic part of the study is investigated analytically and its mechanical part is studied numerically. in order to couple electromagnetic with mechanical parts, no-coupling method is used. the obtained results are verified by comparing the obtained results with previous experimental ones in literature. rate-dependent and rate-independent hardenings are taken into consideration for the mechanical behavior for material of aal1050. using appropriate hardening model for material yields acceptable results. moreover, a convex punch instead of a concave die is used to reach to a higher depth in sheet electromagnetic forming.