1050 aluminum alloy is formed by adding a small amount of copper in pure aluminum, which has excellent forming characteristics, high corrosion resistance, good weldability and electrical conductivity. It is widely used in products with low strength requirements, such as chemical instruments, sheet metal processing parts, deep drawing or spinning concave vessels, welding parts, heat exchangers, clock surface and disk surface, nameplate, kitchen utensils, decorations, reflective appliances, etc.