TUNGSTEN INERT GAS (TIG) WELDING
Tungsten Inert Gas, or TIG, is another common arc welding process that uses a non-combustible tungsten electrode to deliver current to the welding arc. The tungsten and weld pools are also protected and cooled with an inert gas—typically Argon. Similar to acetylene welding in that filler material is used for build-up or reinforcement, the TIG process uses an electric torch, and Cadorath technicians hand-feed filler rods into the molten puddle. At Cadorath, TIG is primarily used for aviation applications.
ADVANTAGES OF TUNGSTEN INERT GAS (TIG) WELDING
- Provides the technician with the ability to easily start and stop the heat source.
- Useful for detailed work—fingertip controls provide easy access to areas typically out of position.
- Remote controls can adjust the heat source during the weld.
ORIGINS AND DEVELOPMENT
TIG welding was developed in the 1940s by an American welder named Russell Meredith, who created the technique because contemporary methods were inadequate for welds on aluminum and magnesium alloys, common to the burgeoning aircraft industry.
The TIG process is considered more of a “finesse-based” type of welding for both mild steels and exotic alloys, such as hastelloy or high nickel and chromium metals. TIG is also likely to undergo increasing levels of automation in the years ahead.
Would you like to learn more about the benefits of tungsten inert gas (TIG) welding?
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