MATHEMATICAL MODELLING OF HOT ROLLING OF ALUMINUM.

A finite element model is developed to examine the steady state metal flow taking place in the rolling process. This model is coupled with a finite difference model of the work roll to compute thermal boundary conditions at the strip-roll interface. Integration of the models for the metal product and a forming tool reveals the nature of unknown conditions (such as heat flux) at the tool-product interface. Coupling the models using criteria with a physical basis, while retaining them as separate program entities, allows for a higher resolution of field variables without excessive computer storage requirements.