Tungsten Inert Gas (TIG) welding is a process that uses a non-consumable tungsten electrode to produce a weld. An inert gas, usually argon or a mixture of argon and helium, shields the weld area from contamination. This method is known for its precision and ability to weld a variety of metals, including aluminum and stainless steel. TIG welding is commonly used in industries that require high-quality welds, such as aerospace and automotive. The welder can control the heat and filler material, allowing for clean and strong joints. This technique is ideal for thin materials and intricate designs, making it a preferred choice for skilled welders.