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The Global Insight

What are the parts of a TIG torch

Author

Ava White

Updated on March 26, 2026

Torch body/head.Collet body.Collet.Gas lens body.Ceramic cup.Tungsten welding electrodes.Back cap.

What are all the parts of a TIG torch?

  • TIG Torch Body.
  • TIG Collet Body.
  • TIG Gas Lens.
  • TIG Gas Nozzle.
  • TIG Back Cap.
  • TIG Collet.
  • TIG Gasket.

What does the knob on TIG torch do?

Use the knob to select how long you would like your pre-gas to flow before the arc ignites. Start amps: these allow for a lower or higher amp start, depending on your material.

What are the parts of welding torch?

  • Cylinders: Two types of gas are stored under pressure in two different steel cylinders. …
  • Pressure Regulators: …
  • Torches: …
  • Mixing Chamber: …
  • Control Valves: …
  • Gas Hoses: …
  • Nozzle: …
  • Googles and gloves :

How do I know what TIG torch I have?

Most tig torch manufacturers stamp a model number on the neck of the torch. The numbers are often preceded by letters, WP, SR, ER for example. These letters can usually be ignored as it is the number that is important when selecting the correct parts from this section.

What gauge pressure should acetylene never be set above?

Never use acetylene at pressures above 15 psi. Using acetylene at pressures in excess of 15 psi gauge pressure (or about 30 psi absolute pressure) is a hazardous practice.

What are the basic parts of the torch of oxy acetylene what are their functions?

  • Torch. The basic oxyacetylene torch comprises: …
  • Hoses. Hoses between the torch and the gas regulators should be colour-coded; in the UK: red for acetylene, and blue for oxygen. …
  • Gas regulators. The primary function of a gas regulator is to control gas pressure. …
  • Flame traps.

What is a WP17 TIG torch?

Weldcraft WP-17 A-150 TIG Torch (1 each) Whether you need a flexible TIG torch or a TIG torch with a valve Weldcraft has you covered. WP17 TIG torches are rated at 150 amps and are air-cooled. This Weldcraft TIG torch is covered with Miller’s True Blue 3 Year Warranty! … A-150 Valve Torch Body. Handle.

What equipment do you need to TIG weld?

The TIG Set up includes a torch, your choice of an electrode, your choice of hand control or the pedal, and your choice of gas you will be using for your shield. You will also need a grinder to take off any paint or to smooth the surface where you will be welding. TIG is also known as gas tungsten arc welding (GTAW).

How do you set up a TIG?
  1. Connect Torch. When using an air-cooled torch, use the adapter from your accessory package and plug the torch into the front of your machine. …
  2. Connect Remote Control. …
  3. Connect Work Clamp. …
  4. Select Polarity. …
  5. Prepare Tungsten. …
  6. Assemble Torch. …
  7. Install Tungsten. …
  8. Check and Connect Power.
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What does the foot pedal do on a TIG welder?

The foot pedal gives you complete control without having to stop in the middle of a weld and readjust. They can only be used while TIG welding, as stick welding uses an electrode holder rather than a torch and MIG’s amperage is dictated by the wire feed speed.

What is the switch on a TIG torch?

There is just no substitute for precise amperage control without the risk of moving the torch. That said, there are times when a torch switch can be pretty handy. A torch switch is basically an on/off switch so whatever you have the amperage set on the machine is what you get when you press the switch.

What makes a good TIG torch?

The TIG welding torch needs to be rated to at least the same amperage as the welder, preferably higher. So if your TIG machine is rated at 250 amps, you need a torch with at least a 250-amp rating. Otherwise, it’s going to overheat, causing a failure and possibly even burning you.

What is scratch start TIG?

The scratch start TIG welding arc is initiated by scratching the sharpened tungsten against the steel being welded. Similar to starting a stick arc, it is a quick scratch and then a lift to initiate the welding arc. … Once this is done, the welder pushes the foot pedal or switch to initiate the arc.

What size is a t2 TIG torch?

Cooling MethodAir-CooledElectrode Size:1.0-4.0mm / 0.04″-5/32″

What are the 2 things that are put into the acetylene cylinder other than acetylene?

Fuels. Oxy-fuel processes may use a variety of fuel gases (or combustable liquids), the most common being acetylene. Other gases that may be used are propylene, liquified petroleum gas (LPG), propane, natural gas, hydrogen, and MAPP gas.

Why gas cutting is not possible in stainless steel?

Metals such as aluminum and stainless steel cannot be cut with Oxy/fuel due to the formation of an oxide that prevents oxidation from fully occurring.

Which colour hose pipe is used in acetylene cylinder?

The function of hoses is to provide the passage for gases from pressure regulator to the welding torch. The oxygen hose pipe is coloured black and acetylene hose pipe is red in colour.

When shutting off the torch which needle valve should be closed first?

OXY-ACETYLENE We recommend closing the oxygen valve first whenever turning off an oxy-fuel torch system especially when Acetylene is fuel.

Can you store oxygen and acetylene together?

Oxygen storage. Oxygen cylinders shall not be stored near highly combustible material, especially oil and grease; or near reserve stocks of carbide and acetylene or other fuel-gas cylinders, or near any other substance likely to cause or accelerate fire; or in an acetylene generator compartment.

What is the PSI of a full oxygen tank?

A full cylinder will read about 2000 psi (pounds per square inch). the gauge reaches the flow rate your doctor prescribed. the regulator. Secure oxygen cylinders in your vehicle so they do not roll or bump against other cylinders or objects.

Can you Tig weld without gas?

Simply put, NO, you can’t Tig weld without Gas! Gas is required to protect both the Tungsten Electrode and the weld pool from Oxygen. Most Tig Welder torches are also cooled by the gas, so not using gas would risk burning out the Torch. … You might also find my article Can you use the same Gas for Mig and Tig useful.

How do I start Tig welding?

  1. Use The Minimum Power. …
  2. The Angle Of The Torch. …
  3. Keep The Materials Clean. …
  4. Don’t Melt The Filler Rod Directly. …
  5. Wear Protective Gear. …
  6. Use The Correct Type Of Tungsten. …
  7. Working With Stainless Steel.

What are the disadvantages of Tig welding?

  • TIG is a time-consuming process – They are slower than any other welding process. …
  • More complicated – Highly skilled and professional workers are needed to perform TIG welding.
  • Safety issue – Welders, are exposed to high intensity of light which can cause eye damage.
  • High initial cost.

What does Wp stand for in TIG welding?

Gas tungsten arc welding (GTAW), also known as tungsten inert gas (TIG) welding, is an arc welding process that uses a non-consumable tungsten electrode to produce the weld. The weld area and electrode are protected from oxidation or other atmospheric contamination by an inert shielding gas (argon or helium).

What polarity is TIG welding?

What is the correct Polarity when TIG welding? Polarity refers to the direction of current flow when welding. All DC TIG welding (steel, stainless, etc) is done on DC- polarity where the TIG torch is connected to the negative (-) terminal and the earth lead to the positive (+) terminal.

Is TIG the same as GTAW?

Tungsten Inert Gas (TIG) welding, also known as Gas Tungsten Arc Welding (GTAW) is an arc welding process that produces the weld with a non-consumable tungsten electrode.

Is TIG an AC or DC?

DC is used for TIG welding Mild Steel/Stainless material and AC would be used for welding Aluminium. The TIG welding process has three options of welding current based upon the type of connection. Each method of connection has both advantages and disadvantages.

What is DC in welding?

What is DC Welding? Direct current is an electric current that has a constant polarity flow in a single direction. This current can be positive or negative. With DC welding, since the magnetic field and current of the arc are constant, stable arcs are produced.

What is welding machine inverter?

Inverter welder apply electric drive semiconductor power devices, it can precise control of the size of the current in the microsecond range. Control to improve the accuracy significantly improved precision welding and cutting, meet the needs of a variety of welding methods.