Laser welding of different aluminum alloys Available to Purchase

Laser welding is one of the most common methods for joining steel. Its application to the welding of aluminum alloys has been studied in recent years (Ref. 1-7), but a practical technique for use in production operations has yet to be devised. The main reason for this is the low degree of energy efficiency that is obtained because of the high reflectivity and high thermal conductivity of aluminum alloys. Compared with steel, it is reported that the welding of aluminum alloys requires twice the laser power density. In addition, the additives contained in aluminum alloys strongly affect their weldability. For these reasons, it is difficult to optimize laser welding conditions.