Simulation of rolling processing for Al/Mg/Al laminates produced by explosion cladding

• 1、College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094

Abstract：Rolling processing of Al/Mg/Al laminates fabricated by the explosion cladding method is simulated by finite element methods. The flow stress of AZ31 magnesium alloy is close to that of 7A52 aluminium alloy when temperature is 280℃, and the plastic of these alloys is good. All of mentioned above hint that there will be a uniform strain distribution when rolling Al/Mg/A laminates at temperature 280℃. At the initial stage after entering, mainly strain occurs on the Al alloy plate. With time increasing, strain will uniform distribute on Al plate and Mg plate, which will be help for deformation strengthening. The maximum strain, stress, rolling force Fmax and entering time increased with reduce ratio λ. When rolling temperature is 280℃, there is not cracks in Al/Mg/Al laminate with 1% reduce ratio, and the Al/Mg/Al laminate will crack when λ≥2%. The simulation agrees with the experimental.

Keywords： Explosion cladding Al/Mg/Al laminate Rolling Strain Number simulation