Numerical Simulation and Process Research of 1500mm Twelve-Roll Copper-Steel-Copper Clad Rolling

Abstract

The copper-steel-copper clad strip was commonly applied in many areas of life as a new type of clad material due to its superior mechanical qualities and significant economic benefits. The finite element model of copper-steel-copper clad rolling is created by ABAQUS. The finite element simulation of copper-steel-copper clad rolling is carried out by setting different reduction rates, rolling temperature and rolling speed. With increasing reduction rate, rolling speed and decreasing rolling temperature, the simulation results show a growing tendency toward the Mises stress of Q235. With the increase of rolling temperature, the Mises stress of H96 decreases gradually. The plastic strain of Q235 and H96 shows an upward trend with the increase of reduction rate. The convexity of the copper-steel-copper clad strip increases with the increase of reduction rate. Based on the orthogonal experimental method, taking the residual stress and belt convexity as the evaluation indexes, the optimal rolling process parameters of copper-steel-copper clad strip are studied through range analysis. The results show that the optimal rolling process parameters of copper-steel-copper clad strip are reduction rate of 40%, rolling temperature of 450°C and rolling speed of 100mm/s.