TIG Welding, or Tungsten Inert Gas welding, is a process that uses a non-consumable tungsten electrode to produce a weld. An inert gas, usually argon, protects the weld area from contamination by the atmosphere. This method is known for its precision and ability to weld thin materials, making it popular in industries like aerospace and automotive. The TIG process allows for a high degree of control over the weld, which is beneficial for intricate projects. It can be used on various metals, including aluminum, stainless steel, and copper. While it requires skill and practice, the results are often clean and strong welds.