A guide to Hobart Tig Welder Selection and Applications
From Hobart's site: "Often called TIG welding (Tungsten Inert Gas), this
welding process joins metals by heating them with a tungsten electrode which
should not become part of the completed weld. Filler metal is sometimes used and
argon inert gas or inert gas mixtures are used for shielding. Consumables:
tungsten electrode, filler metal, shielding gas. The TIG process requires a high
The Hobart Tigmate TIG Welder
The TIGMATE™ is a complete AC/DC, TIG and Stick welding package. All you
need is a bottle of argon shielding gas or your choice of Stick electrodes and
you're ready to start welding. In the TIG mode, the TIGMATE™ offers superior
performance: 18 gauge to 3/16 in. (1.2 to 4.8 mm) steel and stainless steel; 14
gauge to 3/16 in. (1.8 to 4.8 mm) aluminum. For thicker metals, take advantage
of the Stick mode using 3/32 and 1/8 in. (2.4 and 3.2 mm) electrodes.
TIG welding tips from Hobart
Use Argon shielding for steel, stainless, and aluminum.
Use DC-Straight Polarity (DCEN) for steel and stainless. Use AC for
Always use a push technique with the TIG torch
Match the tungsten electrode size with the collet size.
Aluminum - use a pure tungsten, AWS Class EWP (green identifying
band). Will form a balled-end in AC.
Steel and stainless steel - use a 2% thoriated tungsten, AWS Class
EWTH-2 (red identifying band). Prepare a pointed-end for DCEN
welding. (Refer to Diagram 11. Tungsten Preparation)
When welding a fillet, the leg of the weld should be equal to the
thickness of the parts welded. (Refer to Diagram 10. Recommended Fillet Weld
Hobart TIG welders are top quality products widely available. Consider
Hobart's wide range of accessories and options for its TIG welding machines.
Hobart also offers welding accessories, data, and information.