What is aluminum alloy

The aluminum alloy main alloying elements are copper, silicon, magnesium, zinc and manganese, while the minor alloying elements are nickel, iron, titanium, chromium and lithium. Aluminum alloy is one of the most widely used non-ferrous metal structural materials in industry. It has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipping and chemical industry. With the rapid development of science and technology and industrial economy in recent years, the demand for welded structural parts of aluminium alloy is increasing day by day, which makes the research of weldability of aluminium alloy sheet deepen. The wide application of aluminium alloys has promoted the development of welding technology of aluminium alloys. At the same time, the development of welding technology has expanded the application field of aluminium alloys. Therefore, the welding technology of aluminium alloys is becoming one of the hotspots of research. Pure aluminiu...