Mechanical solutions for drawing processes under plane strain conditions by the upper bound method

Abstract Present work applies the Limit Analysis Method to the study of drawing processes of solid components associated to plane strain hypothesis. Against the traditional approach to the problem with only one triangular rigid zone, multiblock models are tried. This allows the compared study of different geometries and velocities ranges compatible with the process boundary conditions, that appear in each case as well as the development of improved solutions for each situation. Finally, some results are presented according to the main mechanical parameters of the process (die semiangle, friction coefficient m or μ and section reduction r ), and the resulting values are discussed.