Gas Tungsten Arc Welding (GTAW), also known as Tungsten Inert Gas (TIG) welding, is a precise welding process that uses a non-consumable tungsten electrode to produce high-quality welds on a variety of metals, including stainless steel and aluminum. It is favored for its ability to create clean, strong welds with minimal spatter, making it ideal for applications requiring superior aesthetics and structural integrity.