Estimation of Deformation Site Parameters for Symmetric and Asymmetric Rolling of a Strip Using Computer Simulation

Computer simulation of longitudinal rolling is performed for different combinations of the diameters of the upper and lower rolls: 600–600, 590–600, 570–600, and 300–600 mm. The rolling for each variant of combinations of working roll diameters has been carried out in three passes (the initial strip thickness is 2 mm; the gap between the rolls is 1.4 mm in the first pass, 0.98 mm in the second pass, and 0.66 mm in the third pass. The methods have been proposed for determining the lengths of the arc of contact and of the actual deformation site, and the lengths of external zones have been estimated.