A computer program for the calculation of stresses and strains in the axisymmetric cup drawing

Abstract

The proposed computer program is developed incorporating previous results by WOO, as well as taking into account the cup wall, whose exact solution had not been previously sought. The calculations are performed in this case starting both from the punch side as well as from the die side, so as to individuate the position of the section of the cup wall on both sides of which the computed values of stresses and strains are the same within defined limits. The results are in this way generalized to cup walls that form contact angles different from 90° with the initial blank position.