2008 Abaqus Austria Regional Users´ Meeting: Conference Proceedings (CD, Simulia)
The hot rolling process can be considered as a key step within the production chain of high quality steel strip and sheet material. To attain a better insight into the phenomena during the rolling process, the application of customized on- and off-line modelling tools is of utmost importance.
In this paper different approaches to 3D off-line modelling of the hot strip rolling process will be presented.
For the prediction of 3D-effects during the roughing process of thick slabs, such as the lateral material flow and the influence of an edger, adequate 3D models are essential. Such models also enable the systematic study of, e.g., asymmetric temperature distributions, camber, wedge and friction inhomogeneities of the rolls in lateral direction and their influence on the strip geometry. The presented model for the roughing process is set up by utilizing ABAQUS/Explicit simulating the material flow behavior and ABAQUS/Standard for the response of the elastic roll stack in a decoupled manner.
For the prediction of the material flow behavior in the finishing mill the iterative coupling of the deformation of the strip and the elastic response of the roll-stack is essential. Therefore, a customized FEM-code for the effective simulation of the elasto-viscoplastic material flow inside the roll gap is under development. The verification of this customized self-developed program has to be performed by a comparison of significant results, in particular the pressure distribution inside the roll-gap and the residual stress distribution after rolling, with those obtained by the commercial FEM-packages ABAQUS/Standard as well as DEFORM-3D.