Parameters optimization for aluminum alloy magnet cover with stamping based on FEM simulation

In view of the phenomenon that defects such as fracture, wrinkling and springback may generate when box shaped parts are stamped, however better surface quality on parts have been required. The process of drawing, cutting and springback for magnet covers with arc top and straight sidewall are simulated using the finite element analysis software Dynaform. The influences of binder force and die fillet radius on the stamping properties are studied by single factor analysis method, the stamping properties of parts under every condition are analyzed and reasonable process parameters are obtained by analyzing quality indexes of the maximum thinning rate, the maximum thickening rate and the amount of springback under every working condition.