Aluminum is a silvery white, soft, nonmagnetic, ductile metal. Aluminum is the third most abundant element and the most abundant metal in the Earth's crust. Aluminum is remarkable for the metal's low density and for its ability to resist corrosion due to the phenomenon of passivation. Structural components made from aluminum and its alloys are vital to the aerospace industry and are important in other areas of transportation and structural materials.
Tig Welding, otherwise known as GTAW, is generally used to weld exotic material like stainless steel, aluminum, copper, titanium and critical welds that must be flawless such as aircraft engine parts. Tig welding offers the user the greatest amount of flexibility to weld the widest range of material.