Tungsten inert gas welding rod
An uncoated filler wire for manual feeding in TIG welding, whose composition is exactly matched to the base metal being joined.
Physical-Chemical Mechanism of Action
A TIG rod consists of a core material coated with a stable tungsten shielding layer. This shielding layer prevents oxidation of the wire core and ensures smooth feeding into the weld seam.
Metallurgical Relevance & Welding Risks
The exact composition of the TIG rod is critical for weld quality. An unsuitable rod can lead to porosity, loss of strength, and increased arc ignition resistance. Additionally, a missing or poor shielding layer can cause oxidation issues and reduced weld quality.
Workshop Practice & Instructions
Always choose a TIG rod whose composition matches the base material. Check the manufacturer's specifications before use and ensure the rod is not coated. If in doubt, consult the manufacturer or a qualified welding specialist.