Calculation of the forward tension in drawing processes

Drawing process is one of the most used metalforming process within the industrial field, particularly, in automotive and electric sectors. Then, different analytical, numerical, empirical and experimental methods have been developed in order to analyse it and to optimise it. However, exact solutions have not achieved yet due to the great number of factors involved in this type of processes and to the mathematical complexity that they present. In this work, the main variants of the drawing process have been studied by different methods. Concretely, wire drawing and plate drawing have been modelled and simulated by means of the slab method (SM) and finite element method (FEM). In addition, the results obtained in both cases have been compared with other solutions found in the literature about these themes, particularly, with Wistreichʹs solutions in wire case and with Green and Hill and the upper bound technique ones in plate drawing case.