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What is tig welding?

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  • 1 decade ago
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    Tig welding or ( Tungsten inert gas) is a method of welding various thin gauge materials such as (stainless steel and aluminium allies) together which doesn't really use a lot of energy or produce large amounts of heat! or the need to spend extra time cleaning the weld after completed.. The name is derived from the actual material used to make the electrode which carries the weld current that forms the arc weld pool. This is called tungsten, (look up its properties).

    The welding process is reliant on a AC welding machine to produce the AC weld current which is termed amps!. The tungsten electrode which can be 1.6 2.4 or 3.2 mm in diameter being sharpened to a point and then inserted into the welding gun.. (electrode diameters are important because to small or two large will result in sticking or oblation of the electrode and poor arc performance.

    A shielding gas usually Argon but can have other inert gas mixes (helium or krypton) depending on the type of material to be welded together, and a filling wire (usually of the same type as being welded) which is hand fed into the weld pool In a similar fashion to gas welding.

    An experienced welding operative will set the amps on the machine, then insure that the shield gas is connected and flowing on demand and then also insure that the materials to be welded are prepared correctly!. The welding process occurs when a electrical current (amps) is passed through the tungsten electrode in close proximity of the material to be welded.. This current causes an very bright electric arc to form between the tip of the electrode and the material to be welded. as the arc stabilises the material melts and forms a weld pool while the shielding gas keeps ordinary air away from the arc . The operative then feeds the filling wire into the weld arc pool insuring to steadily move the arc along the joint leaving a clean joint that needs no further attention.

    You should note that if attempting to use welding equipment it is essential to have the correct protective clothing and face shield. falling to have this equipment could cause serious eye (flash) and skin injuries,. (burns) . Bright arc light contains both ultra violet, and infa red emissions and should not be viewed with out correct protection.

  • 5 years ago

    TIG in TIG welding stands for Tungsten Inert Gas. It is also known as Gas Tungsten Arc Welding (GTAW) and involves the use of non-consumable tungsten electrode to deliver current to the welding arc. This welding technique was developed in 1930s and was used during the times of secong world war to weld parts of aircraft and is today used in welding stainless steel, chromoly, aluminum, bronze, brass and gold.

    How to weld with TIG?

    Logosweld is among the top welding electrodes machine suppliers in India. Here is a brief expalnation on how the TIG weld works.

    The first step is to clean the welding material. You can use stainless stell wire brush for aluminum, sander for carbon steel while for stainless steel all you need to do is wipe the weld area with a solvent. Once the surface is clean, the next step is to use tungsten electrode. You need to open the back of the electrode holder on the collet. Then insert the tungsten electrode and close the electrode holder. Make it a point that the electrode hangs at least 1/4-inch away from the protective sheath on the collet.

    Now use a C-clamps to secure the parts you wish to weld together. You can also make use of tack welds to hold the parts in place, until the final welding has taken place. The next step is to hold the TIG torch at about 75 degree angle, with the tunsgten raised up to 1/4 inch off the metal. It is important that the tungsten does not touch the work piece, or else it will contaminate the material.

    With the torch heatup the base metal and advance the puddle in the desired direction using your arc. Continue to advance the puddle until the whole of the desired area has been welded.

    And with this your TIG welding has been completed.

    To get more information on welding and related services, visit www.logosweld.com.

  • 8 years ago

    TIG welding, is an arc welding process that uses a non-consumable tungsten electrode to produce the weld. The weld area is protected from atmospheric contamination by an inert shielding gas (argon or helium), and a filler metal is normally used, though some welds, known as autogenous welds, do not require it. A constant-current welding power supply produces energy which is conducted across the arc through a column of highly ionized gas and metal vapors known as a plasma.

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  • 6 years ago

    TIG welding is the electronic equivalent of Oxy Acty welding. A TIG torch is held in one hand and the filler rod in the other. A foot pedal is used to control the Arc which increases or decreases the amperage. TIG welding allows you to control the molten puddle better then other welding processes because there is more control of the heat and filler metal. I use TIG mostly for intricate aluminum work and occasionally for steel. The welds are SEXY!

    This is a more expensive welding option and will cost you around $2,000 to get started.

    Good Luck.

  • 1 decade ago

    Tungsten inert gas (TIG) welding, is an arc welding process that uses a nonconsumable tungsten electrode to produce the weld. The weld area is protected from atmospheric contamination by a shielding gas (usually an inert gas such as argon), and a filler metal is normally used, though some welds, known as autogenous welds, do not require it. A constant-current welding power supply produces energy which is conducted across the arc through a column of highly ionized gas and metal vapors known as a plasma.

    GTAW is most commonly used to weld thin sections of stainless steel and light metals such as aluminum, magnesium, and copper alloys. The process grants the operator greater control over the weld than competing procedures such as shielded metal arc welding and gas metal arc welding, allowing for stronger, higher quality welds. However, GTAW is comparatively more complex and difficult to master, and furthermore, it is significantly slower than most other welding techniques. A related process, plasma arc welding, uses a slightly different welding torch to create a more focused welding arc and as a result is often automated.

  • ?
    Lv 4
    5 years ago

    Tungsten is a very hard, slightly radioactive, and brittle metal. Its uses are limited compared to other metals. In TIG welding the tungsten is made into a non consumable electrode that is used to create the arc for TIG welding.

    https://www.electrikals.com/

  • 1 decade ago

    Total Inert Gas.

    It's welding performed in an argon atmosphere.

  • Anonymous
    1 decade ago

    tig arc, there are loads of diferent types of welding.

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