Effect of welding time on the joint organization and mechanical properties of 6063 aluminum alloy

Abstract

The 6063 Aluminum alloy brazing joint was prepared with the Al-Si12 solder. The effect of welding time on the structure and shear properties of brazing weld is studied and the interface is analyzed. The study shows that the spreading performance of brder gradually increases with the welding time, the shear strength of the 6063 aluminum alloy joint increase first and then decreases with the increase of the welding time. When the optimal brazing process is 605°C 15min, the interface between Al-Si12 solder and aluminum alloy is good, and the shear strength is 122.4MPa. To ensure the bonding strength of 6063 aluminum alloy, the optimal insulation time of brazing is 15min.