How to Use a Tig Welder as an Arc Welder

Tungsten inert gas (TIG) welders use a torch in concert with a nonconsumable tungsten electrode; they are a specialized kind of arc welder, using an electric power supply to create an electric arc between the electrode and the base material to melt the metals at the welding point. Unlike most arc welding, which is best on thick metal, TIG welding is suited to welding thin sections of stainless steel, and light metals such as aluminum, copper, and magnesium. Moreover, TIG welding generally requires the welder to add filler metal to the site of welding. You can use TIG welders to carry out typical stick arc weld processes by welding thicker metals, which do not require you to add filler metal.

Instructions

    • 1

      Hold the TIG torch, in relation to the surfaces being welded, at welding angles typical of stick arc welding. If welding horizontally, tilt the top of the electrode 5 to 15 degrees in the direction of welding. For vertical welding, tilt the top of the rod 15 degrees from the direction of welding. The tungsten should be at least 1/8 to 1/4 inch from the surface.

    • 2

      Fire the torch to establish an arc. The arc should not exceed the metal core of the electrode, in diameter.

    • 3

      Practice using the foot pedal to control the size of the welding puddle, which should be about 1/4 inch wide. Push the weld puddle along the weld joint.

    • 4

      End the arc. Hold the torch over the weld joint for several minutes, to protect it until the puddle closes.

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