TIGGTAW

TIGGTAW refers to the welding process known as TIG (Tungsten Inert Gas) or GTAW (Gas Tungsten Arc Welding). It uses a nonconsumable tungsten electrode to create an arc between the electrode and the workpiece, while an inert shielding gas—typically argon or helium—protects the weld pool from contamination. Filler metal can be added with the hand or fed automatically, depending on the joint design.

The process relies on a controlled arc and shielding gas rather than filler metal consumption to create a clean weld. A power supply provides either direct current or alternating current, and a hand-held or mechanized torch directs the arc. Heat input is controlled with amperage, and many setups include a foot pedal or control switch to modulate current during welding. Proper shielding gas coverage and clean joints are essential to avoid porosity and oxidation.

TIGGTAW is well suited for a range of materials, particularly thin sections and nonferrous metals such as aluminum, stainless steel, magnesium, copper, and titanium. It supports different modes, including AC for aluminum and magnesium to manage oxide layers, and DC for most other metals. It can be performed with or without filler metal, yielding precise, high-quality welds with minimal distortion.

Advantages include high weld quality, excellent appearance, and suitability for complex joints and thin materials. Disadvantages are slower deposition rates, higher skill requirements, sensitivity to contamination, and the need for clean, well-prepared surfaces and reliable shielding gas delivery. Applications span aerospace, automotive, piping, and precision fabrication.