A short review on laser welding/brazing of aluminum alloy to steel

摘要

In this review, present status of laser welding/brazing (LWB) of aluminum alloy to steel is adopted in detail. This review shows the current scholarly exploration and achievements in this field through the three aspects of the process, microstructure of intermetallic reaction layer, and mechanical properties. From the selection of laser source, temperature control, and filler metal selection, the technological factors of laser welding applied to Fe/Al dissimilar metal bonding are discussed. We presented the relationship between the microstructure and mechanical properties of the intermetallic reaction layer in the Fe/Al joint by laser welding. To sum up, laser welding/brazing has a broad application prospect in Fe/Al dissimilar metal bonding.