Cu Fe Cu laminated composite for electromagnetic shielding by roll-bonding

Roll-bonding was used to prepare of Cu-Fe-Cu laminated composite for electromagnetic shielding, oxygen-free copper sheet and electrical iron sheet were chosen as its components. Mechanical property experiments on the laminated composite were executed by using of material testing machine, the microstructure and mechanism of bonding were investigated by means of metalloscope, SEM and EDS. The results show that Cu and Fe can be bonded by hot rolling when reduction rate achieves 50%, thickness deviation and parallelism of each laminates are fine. After the annealing process, it is hard to find the diffusion of Cu and Fe, and the shear strength of interface comes to 167 MPa. The mechanism of bonding by hot rolling is mechanically engage.