sphere plastic compression, flat dies, ideal plasticity, axial symmetry, full plasticity, slip lines, stresses, velocities, contact friction

Computer simulation of the rigid-plastic sphere compression by the flat dies is presented for the full plasticity regime on the rib of Tresca prism. The slip lines, stresses and velocities plastic flow fields are calculated with contact friction, the sphere form and the plastic region boundaries variation considerations. The results of the problem solution can be used for the limit force estimation of the sphere plastic compression, and for the sphere plastic forming simulation with large displacements of the dies.

Nepershin Rostislav Ivanovich , e-mail: nepershin_ri@rambler.ru, Dr. Sci. Eng., Professor, Moscow State Technological University STANKIN, Moscow, Russia.