Analysis of the influence of kinematic and frictionasymmetry on the curvature of the strip and forceparameters of the rolling process

Abstract

This paper presents the numerical analysis results in Simufact Forming 2016 of the asymmetric cold rollingprocess of S235JR steel. The research determined the effect of kinematic asymmetry, frictional asymmetryand their combination on the strip curvature, as well as the force parameters of the rolling process. During theconducted research, the aim was to determine the parameters of the asymmetric rolling process, allowing thehighest possible reduction of forces (in relation to symmetric rolling) while maintaining the curvature of thestrip with an acceptable value |δ|≤1.5. For this purpose, "process maps" were developed based on the obtainedresults, allowing for selecting the most favourable process parameters for the different rolling reductions.In addition, the results made it possible to determine the effect of the various asymmetries obtained on theprocess forces and strip curvature depending on the size of the rolling reduction.