Simulation of deformation and temperature in multi-pass H-shape rolling

A method for analyzing deformation and temperatures during H-shape rolling, which can be utilized for the pass design of H-shape rolling, has been proposed. The method for analyzing deformation is the conventional three-dimensional rigid/plastic finite-element method (FEM), whilst, the method for analyzing temperature is a combination of three-dimensional FEM, two-dimensional FEM and the one-dimensional finite-difference method (FDM). Further, the method for analyzing residual stress is the conventional two-dimensional elastic/plastic FEM. The calculated residual stress distributions are found to agree well with experimental values. The method is then applied to a simulation of the deformation and temperatures of the material during an actual H-shape rolling process, in which H-shaped steel is produced from a beam blank after rolling through 20 mills, and the strain and temperature distributions in the cross-section of the material are obtained. The calculated shape and the calculated temperature of the material are found to agree well with the measured values. (C) 2000 Elsevier Science S.A. All rights reserved.