Manual TIG welding / Tungsten (wolfram); Inert (neutral); Gas (gas) or WIG (Wolfram Inert Gas) – is one of several welding methods. The welding process consists of forming permanent connections formed via electric arc between an electrode and welded material. The welding process uses a shield of inert gases, also utilized in welding carbon steel, stainless steel and aluminum. Welding is carried out using a non-consumable tungsten electrode or alloy. Welding is possible with or without the addition of binders. If executed correctly, the resulting connection is characterized by very good strength and hygiene.
- this method provides the best quality connections of all other methods of welding,
- possibility of welding elements made from different materials, such as carbon steel, stainless steel, aluminum,
- possibility of welding materials with a very wide range of thickness,
ability to weld in any position,
- possibility of robotization – automatic welding (e.g., orbital welding of pipes)
- lower efficiency,
- need for replacement and sharpening electrodes,
- necessity of using guards against sudden movements of air (drafts, outside work),
- high cost of equipment.