The influence of some rolling parameters on the residual stresses after rolling

A 2D analysis of the deformation process in the rolling gap is presented. Flat strip rolling is considered for a low carbon steel at a temperature of 1000°C.

2D — Finite Element models with a rotating workroll have been installed using the Abaqus/Explicit-Code. The workroll is modelled as a rigid body. The main subject of the analysis is to 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 process the backward slip exists of the three zones A, B, C. The importance of these zones depends strongly on the shape coefficient Δ. The elastic — plastic modelling of the material behaviour allows the calculation of the residual stresses.