Effects of rolling parameters on temperature distribution in the hot rolling of aluminum strips

Abstract

A model for the study of hot strip rolling of aluminum alloys is proposed, and the approach is based on thermo-mechanical analysis using the Finite-Element Method (FEM). To assess the rolling behavior of materials during a pass, finite element program Abaqus/Explicit has been employed and the hot rolling process was modeled in three dimensions. The appropriate models for heat transfer mechanisms are considered and the temperature distribution along the rolled strip and the temperature variation during hot strip rolling process is predicted. The effects of various process parameters such as rolling speed, amount of thickness reduction, initial thickness of the strip and interface heat transfer coefficient are considered. To verify the validity of the model and predicted results, a multi-pass hot rolling program is used and a comparison is carried out between the predicted results by model with plant-recorded results.