A three-dimensional semi-analytical model of rolling stand deformation with finite element validation

摘要

Elastic deflection and flattening of the work roll are a major concern in the strip rolling industry as they result in non uniform strip thicknesses and flatness defects. An accurate semi-analytical model of 2-, 4- and 6-high rolling stands deformation is presented in this paper; it is designed to be coupled to a Finite Element Method for the strip deformation. Predictions of this semi-analytical stand deformation model are compared to elastic Finite Element simulations, which show that the analytical model allows an excellent accuracy while requiring a much Lower computational time.