Simulation of deformation and temperature in multi-pass caliber rolling

Abstract 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.