ANALYSIS OF THE VARIATION OF THE COLD-ROLLING CHARACTERISTICS OF ROLLING FORCE, STRIP SHAPE, STRESS AND TEMPERATURE, FOR A 3-DIMENSIONAL STRIP

The purpose of this study is to develop a three-dimensional thermoelas tic-plastic finite-element model coupled with a three-dimensional heat -transfer finite-difference model under the assumption of rigid work r olls, during the rolling of an aluminium strip. At the same time, nume rical-analytical methods are used to simulate the production process o f cold rolling. In respect of cold rolling, this study aims to explore phenomena that can not be understood by means of two-dimensional simu lation, such as the shape changes, the force distribution, and the dis tribution of the stress and temperature on both surfaces of a three-di mensional strip. Further, the shape changes and the plastic flow of th e material on both sides of the strip in cold rolling are studied.