THE INFLUENCE OF SOME ROLLING PARAMETERS ON THE RESIDUAL-STRESSES AFTER ROLLING

A 2D analysis of the deformation process in the rolling gap is present ed. Flat strip rolling is considered for a low carbon steel at a tempe rature of 1000 degrees C. 2D - Finite Element models with a rotating w orkroll have been installed using the Abaqus/Explicit -Code. The workr oll is modelled as a rigid body. The main subject of the analysis is t o show the influence of the phenomena taking place at the entrance to the rolling gap on the development of the stress and the strain fields in the rolled material. It can be shown that due to the shearing proc ess the backward slip exists of the three zones A, B, C. The importanc e of these zones depends strongly on the shape coefficient Delta. The elastic - plastic modelling of the material behaviour allows the calcu lation of the residual stresses.