Yes, we can weld dissimilar aluminum alloy extrusions. Our team is well-trained and experienced in that kind of aluminum extrusion welding. We know that each aluminum alloy has specific properties, which can affect the welding aluminum extrusions results. For instance, the thermal expansion rate of 5xxx alloy aluminum extrusion welding differs from that of 7xxx alloy aluminum extrusion welding. By being keen on such specific properties and adhering to welding best practices, we can weld dissimilar aluminum extrusions successfully.