A STUDY OF RADIAL THERMAL-EXPANSION OF A WORK ROLL FOR 3-DIMENSIONAL STRIP DEFORMATION DURING ROLLING

The major objective of this research is to use a coupled model of thre e-dimensional thermo-elastic-plastic finite-elements coupled with a th ree-dimensional heal conduction finite-difference model for a strip to obtain the heat source transferring into the work roll from the strip . Then a three-dimensional finite-difference model for calculating the temperature distributions of the work roll is developed. By means of these temperature distributions of the work roll, an equation for calc ulating the radial expansion of the work roll is given. Finally, an an alysis of the deformation and temperature distribution of the strip an d work roll is made. (C) 1997 Elsevier Science S.A.