Tungsten Inert Gas Welding-Main Parts or Component, Working, Application, Advantages and Disadvantages, PDF

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Tungsten Inert Gas Welding:

Tungsten inert gas (TIG) is a type of arc welding that makes use of a tungsten electrode that is non-consumable in order to generate a weld.

The weld spot is protected from contamination by helium, argon and other inert shielding gases.

With this process, there is no longer a need for filler metal that is typically used in the process of arc welding. This process makes this kind of weld highly resistant to the effects of corrosion.

This welding is also known as Gas tungsten arc welding (GTAW)

Working Diagram:

TIG welding uses the heat generated by an electric arc struck between a non-consumable tungsten electrode and the workpiece to fuse metal in the joint area,

and it produces a molten weld pool.

The arc area is shrouded in an inert or reducing gas shield to protect the weld pool and the non-consumable electrode.

Tungsten Inert Gas Welding

The process may be operated autogenously, that is without filler, or filler may be added by feeding a consumable wire or rod into the established weld pool.

Tungsten Inert Gas produces very high-quality welds across a wide range of materials with thicknesses up to about 8 or 10mm.

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Application, Advantages, Disadvantages of Tungsten Inert Gas Welding:

Application:

It is particularly well suited to the sheet material.

Tungsten Inert Gas welding can be used with such a large variety of metals, the process can be applied to several industries and aid in the creation and repair of many items. This form of welding is common in the aerospace, automotive, repair, and art fields.

1. Aerospace –Aircraft, and spacecraft are constructed in part by means of TIG welding.

2. Automotive –Safe and secure construction is essential in the auto industry, as is making vehicles stand the test of time.

3. Repair –TIG may be used in a number of repair applications. From fixing a child’s toy, like a wagon or old-fashioned pedal car, to repairing aluminum tools, this welding method comes in handy.

Advantages:

TIG welding offers a solution for welding critical joints, and for situations where small or exceptionally precise welds are required.

It can be performed with a wide variety of metals

And, when done correctly, it produces a high-quality and high-purity weld compared with other joining processes, which is crucial in many applications.

It can be done in both automatic and manual. 

Overall, it is one of the most efficient ways to join two metals.

No slag is produced.

TIG Welding can be done in any position.

Disadvantages:

It can not be used for thicker sheets of metals.

More complicated-High Skilled and professional workers are needed.

The safety issue, welders are exposed to the high intensity of lights which can cause eye damage.

The price of TIG welding services is high. However, costs will vary depending upon the materials being welded, and the scope of the project.

Tungsten inert gas welding is a slow process welding.

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