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TIG Welding Services

Where others fall short, Fitchburg Welding Company excels: with Tungsten Inert Gas (TIG) welding. This complex method creates extremely neat, precise, and high-quality welds, so it is the best choice for small, thin, and intricate parts, as well as projects where welds will be visible.

Also known as Gas Tungsten Arc Welding (GTAW), TIG welding is suitable for most metals including aluminum, stainless steel, and copper, and is also a great choice for thin materials. It uses extreme heat followed by slow cooling, which creates highly durable welds and joints that are particularly resistant to cracking and corrosion.

For its accuracy, aesthetics, and mechanical strength, TIG welding has many quality-critical applications. In the aerospace industry, for example, it’s used everywhere from engine components to the aircraft body.

The TIG Welding Process

In the TIG welding process, we use a non-consumable tungsten electrode. Tungsten’s extremely high melting point ensures that it will not melt during the process. Instead, a filler wire may be used—although depending on the requirements of your project, an autogenous weld, created without the use of a filler material, may be appropriate.

To protect the weld pool from atmospheric pollutants, an external shielding gas is required. As in MIG welding, argon is commonly used for shielding, although other gases may be mixed in or substituted depending on the material being welded and other factors. The shielding gas also prevents both spatter and slag, so the welded piece will require very little clean-up.

Because the TIG welding process is highly precise, properly controlling the heat input and weld puddle requires expertise. TIG welding aluminum can be especially challenging given the material’s conductivity. At Fitchburg, your project will always be in the hands of an expert TIG welder, ensuring you get the highest quality results.

Our TIG Welding Equipment

With cutting-edge equipment for TIG welding available in our facility, Fitchburg can complete your project as efficiently as possible. We use machines from Lincoln Electric, Miller, Cobramatic, and Hobart, including:

  • Weld positioners with adjustable height, 135° tilt, 360° rotation, and capacity up to 350,000 lbs.
  • 60,000 lb. turning roll
  • 40,000 lb. turntables
  • Fully automatic 3-axis manipulator / welding cell
  • 60″ x 60″ welding manipulator

A One-Stop Shop for Industrial Welding Services

At Fitchburg Welding, TIG welding is only one of our comprehensive capabilities. Before welding, we cut and bevel your material and assemble all parts. After welding, we perform stress relief treatments to produce stronger joints, and magnetic particle testing and other nondestructive testing methods are used to ensure welds are free of internal voids. Shotblasting is used to remove rust and prep the surface for painting, and finally, we apply paint or coatings to your specifications. Fitchburg Welding is ISO 9001 certified for welding and fabrication services.