Abstract：Fatigue hardening and wear of roll surface were affected directly by the contact stress distribution on backup rolls used for wide strip mill, which brought an obvious effect to service life of backup roll. In this paper, an optimum design on profile of backup rolls was developed based on contact analysis of backup roll using FEM. The improving homogenized contact stress and shortening the length of harmful contact were as main aims, and the optimized parameter of profile of backup rolls was obtained.
2011, Vol. 46 
