Estimation of Camber Generation in Rough Rolling Process

In this paper, a method predicting camber generation during rough rolling process is proposed. Using previous studies on mathematical model of camber in roughing mill process, mechanisms of camber generation is presented using Frenet formula. Curvature of the strip is obtained using least square curve fitting method to centerline of the strip. Previous mathematical relation of strip curvature before rolling and after rolling is introduced and verified using FEM simulator describing rough rolling process. The FEM (Finite Element Method) simulator is composed of commercial FEM software DEFORM 3D combined with MATLAB. Assuming that initial tangent vector of the strip after rolling is measured; shape of the strip is estimated using Frenet formula. Simulational results where reasonable parameters are applied show that proposed mathematical relation of camber generation is appropriate.