Simulation of coupled problem of electric upsetting

摘要: Abstract This paper presents a finite-element model of electric upsetting. It is based on mixed formulation and provides simulation heat generation in conjunction with the coupled thermo-mechanical problem non-steady-state visco-plastic material flow. The applied to upsetting round bar. Numerical experiments have shown an adequate sensitivity processing parameter variation good agreement results industrial experiments. billet has ‘onion’ shape specific temperature distribution obtained as result can then be used for subsequent conventional forming operation closed dies that important development technology improvement product quality.