TIG Welding Basics

Gas Tungsten Arc Welding (GTAW) is frequently referred to as TIG welding. TIG welding is a commonly used high welding process. TIG welding has become a popular choice of welding processes when high quality, precision welding is required.

In TIG welding an arc is formed between a nonconsumable tungsten electrode and the metal being worked.  Gas is fed through the torch to shield the electrode and molten weld pool. If filler wire is used, it is added to the weld pool separately.

Although TIG welding is a relatively slow process, it provides high quality welds.  Typical applications are for aluminum irrigation pipes, stainless steel sprayer tanks and aluminum engine parts.

General TIG Welding Applications

TIG is the perfect welding method for materials such as stainless steel, titanium alloy, aluminum alloy and high-temperature alloy steel. It is most often used for general repairs and sometimes for assembly. For example, conventional TIG would be used for welding or laminating multiple tooling parts.

Conventional TIG would also be a choice to repair damage caused by knockout pin breakage, or to repair parting line flash and to weld gate areas. Dimensional corrections can be made to get a mold back into tolerance, and can be used to apply a permanent shim on the back or bottom of an insert or cavity and core.

While using a TIG welder requires that separate filler material be used when additional material is needed, TIG welding has a number of advantages over other welding processes.

• The sharp and rigid tungsten allows for high precision welding.

• The small arc produced by TIG welding is ideal for welding thin materials.

• No material is added to the weld unless it is required.

• The inert gas shielding the weld creates no slag or splatter, making TIG welding a much cleaner and time-efficient process.

Available TIG Welders

At HTP America, We have a number of TIG welders designed to meet your specific needs.  Learn more about our individual models by clicking on a specific unit below and/or requesting a copy of our complete TIG welder product catalog.

Invertig 130 DC/HF & DC/L	Invertig 160DC - TIG Welder	Invertig 201 AC/DC - TIG Welder

Call us at 800-USA-WELD (800-872-9353) for more information or to place an order.