Analysis of asymmetrical rolling of strip considering percentages of three regions in deformation zone

Abstract

An analytical model based on slab method considering the percentages of three regions in deformation zone is proposed for analyzing asymmetrical rolling of strip and used to calculate the percentages of three regions, the roll force, and roll torque. The asymmetrical rolling is more effective in reduction than the symmetrical rolling due to the existence of cross-shear zone. The percentage of cross-shear zone increases with the increasing of speed ratio and friction coefficient and decreasing of back and the front tensions, thickness of the strip, and roll force. With increasing of the percentage of cross-shear zone, the contribution ratio of reduction increases. The proposed model has good accuracy for the analysis results are in good agreement with the results measured in experiments.