TIG welding, or Tungsten Inert Gas welding, is a process that uses a non-consumable tungsten electrode to produce a weld. This method is known for its precision and ability to weld thin materials, making it popular in industries like aerospace and automotive. The welder controls the heat and filler material, allowing for clean and strong welds. In TIG welding, an inert gas, usually argon, protects the weld area from contamination. This shielding gas prevents oxidation and ensures a high-quality finish. While it requires skill and practice, the results are often superior, making it a preferred choice for professional welders.