The Lighten of vehicles requires significant development of the production process, especially for the development of aluminum alloy-intensive vehicles, the assembly and assembly of aluminum alloy structures. Aluminum's widely used series in the automotive industry; 6xxx and 7xxx series for body profiles, 3xxx series for the parts that require sealing and rims, 5xxx series for parts and axles that form the chassis and frame. In this study, pulse metal inert gas (MIG) welding-brazing is used to weld cast Etial 171 alloy products.