TIG Welding Gun (Torch) Parts:

A TIG gun (torch) can have various interchangeable parts fitted. These interchangeable parts (along with the TIG welder controls), enable you to weld a variety of materials, and their different thicknesses.

Some parts are literally consumables, they get eaten up during the welding process. Other parts are consumables, due to wear and heat degradation. These parts may last longer (and only get replaced when worn, or when changing the torch configuration).

Torch parts must match the TIG torch (or the group of torches) being used, (see the article TIG Torch – The Different Types:). Some parts are also dependant on the size of the Tungsten electrode fitted. I.e. if you are using a 1.6mm (1/16″) Tungsten electrode, then the collet and gas nozzle must also be 1.6mm (1/16″).

The image below shows a typical collection of TIG torch parts and how they fit together:

TIG Gun (Torch) Consumables
TIG Gun (Torch) Consumables

More detail on each of the TIG torch consumables can be found by following the links below:

TIG Welding Accessories & Consumables:

Torch Parts: (opens in a new tab)…
Non-Torch Parts: (opens in a new tab)…

Also see the article TIG Welder Consumables.

TIG Tungsten Electrodes:

TIG Welding Tungsten Electrodes (Featured Image)
Tungsten electrodes come in a variety of types and sizes. Which Tungsten electrode you use, may be dependant on what you want to weld? Here is a list of the […]

TIG Gas Cup:

TIG Consumables - Gas Cups (Featured Image)
TIG Gas Cups – Names Used: Consumable Names Used TIG Gas Cup Gas Cup Ceramic Cup Shroud Cup Nozzle1 1The name ‘Nozzle’ is sometimes used for the TIG gas nozzle. […]

TIG Heat Shield (Insulator):

TIG Welding Consumables - Torch Heat Shield (Featured Image)
The TIG insulator (heat shield) often gets overlooked. But it is often designed to match the type of ceramic cup being fitted. You can use different insulators with different types […]

TIG Gas Nozzle (Collet Body or Gas Lens):

TIG Consumables - Gas Nozzles (Featured Image)
The shielding gas exits the gas nozzle (gas lens) and fills the gas cup that screws over and surrounds the gas nozzle. TIG Gas Nozzle – Names Used: Consumable Names […]

TIG Collets:

TIG Welding Collets - (Featured Image)
A collet holds the Tungsten electrode. When you screw on the back cap, it pushes the collet against the gas nozzle, which squeezes the collet jaws. This makes a good […]

TIG O’Rings:

TIG Back Cap, Gas Cup & Gas Nozzle O'Rings (Featured Image)
TIG torch o’rings, are normally found in two places: On the back cap, where it screws into the TIG gun body (to provide a shielding gas seal).On a glass gas […]

TIG Back Caps:

TIG Welding Gun - Back Caps (Featured Image)
A TIG back cap is an insulator and: Provides protection against shorting out the Tungsten electrode that sticks out the back of the TIG torch.Provides a gas tight seal to […]