Abstract
In asymmetric rolling the workpiece is often bent to an unexpected shape. Its curvature may be caused by a speed difference, by a lubrication mismatch or a radius difference of the work rolls, and depends on various rolling parameters, such as the ratio of the peripheral velocities of the upper roll and the lower roll, reduction ratio, average radius of the work rolls, initial plate thickness and friction between the rolls and the workpiece. A finite element simulation, which shows the influence of different diameters of the working rolls and of the degree of reduction on the bending of the workpiece, has been performed.
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