Abstract: A model for stress-strain behavior under hot working conditions has been proposed. Based on experimental data, equations for the dependence of flow stress on strain, strain rate, and temperature ...

Abstract: A simple, semi-empirical approach for the determination of elastic zone, bulge profile, and load-displacement curve for the upsetting of cylindrical billets has been proposed. Stress distribution ...

Abstract: A kinematically admissible velocity field for axisymmetric closed die forging is proposed. The forging power and load are calculated and compared with experimental values. It is found that the ...

Abstract: A finite difference solution for the transient heat transfer during axisymmetric upset forging has been developed. The interfacial film between the die and the billet has been included in the ...

Abstract: An approximate solution for nonisothermal upset forging is presented. A finite difference thermal analysis and an upper-bound deformation solution are used for this purpose. The thermal analysis ...

Abstract: The plane strain plastic bending of rigid-work hardening materials has been investigated and two models have been proposed. In Model I, a numerical solution based on a linear σ̄ – ε̄ approximation ...