What is TIG welding?

Well, it is highly important to understand the fact that there is a lot more to welding. It is not just heating and fusing the wires of metal. There are various welding techniques which can be used for any of the given metal. It is highly important to use the right type of welding for your every related project. It is because this will help you to ensure that your metal welding will stand last even under stress. Even more, the use of the wrong welding technique can also lead to some problems. These problems include corrosion of the weld joint, failing to complete the weld at the starting point and weaker bonds.

However, in this article, we will learn about one of the most used welding techniques which are TIG welding. This is one of the most common welding techniques which is being used in factories. This is an arc welding technique which is highly important for you to know. Therefore, you must know what is TIG Welding and what is TIG welding used for. So, let’s start with the basic introduction of the TIG to get to know more about this.

What is TIG welding?

TIG welding also is known as Gas Tungsten Arc Welding and Tungsten Inert Gas. It is a process of arc welding which is producing non-consumable tungsten electrode-based weld. This is normally a manual welding process that requires the welder to use both hands to weld. However, if you want to know what is making this welding technique different than others. Then you must know the fact that it is its arc technique and use of filler metal are making it different. Furthermore, in this welding technique, the welder will hold a TIG torch with one hand which will produce an arc. While the welder will add filler metal with the other hand to the weld joint. Although it is a difficult process to handle but simultaneously it is the most versatile welding process for different metals.

This process is slow but if it will be done right then it can produce the results of the highest quality. TIG welding is best to use for welding metals, critical weld joints. Even more, with small welds, you can prefer to use TIG welding to produce precise joints.

What is the process of TIG welding?

In the process of TIG welding, the arc is formed between the workpiece and the tungsten electrode (pointed). Most importantly, the process of TIG welding will be done in an inert environment of helium and argon. This small but intense beam of electrodes is ideal for precise and high-quality welding. Even more, as the electron is not here to use in this welding process. Therefore, welders do not have to deal with heat input balance. It is because in this process arc is depositing metal with the melting electrodes. However, when you have to use the filler metal then you must add that into the weld pool separately.

What gas is used for TIG welding?

Well, this is the most common question which most of the people ask. Firstly, you must understand the fact that in TIG welding, welders normally use fewer gases than other welding processes.

Argon

However, pure argon is the most popular shielding gas type for TIG welding. It is because this is effective to use on every type of metal even Aluminum. Even more, it can also provide good stability of arc. Argon normally needs few cleaning actions because the arc is narrow and concentrated, and can help to get a precise result. Most amazingly, it can complete the welding process with shinier and brighter appearance of the surface.

A mix of helium and Argon

While on the other hand, helium and argon can also allow hotter weld where helium is 50% of the mixture. However, working with this mixture can create a wider profile of heat with better heat conduction. This is the second most common shielding gas type which welders are using for TIG welding processes. However, this type of shielding gas is normally for some special welding applications. Though the extra heat in this shielding gas can come at a price, therefore, be careful. Make sure while using this mixture you are not burning with the metal.

However, it is highly important for you to know that higher helium percentages primarily used with direct current electrode negative. More often, seam welders also use the combination of GTAW – DCEN. It is because the high input of heat can bring faster welding speed along with high penetration.

Hydrogen

While, last but not least, there comes straight hydrogen. Most of the welders may also choose to work with hydrogen. It is because it has the ability to increase heat input in the welding process. Hydrogen can create a wider, and hotter bead, which can penetrate deep into the metal. This is more specifically advantageous while you are working with stainless steel.

Applications of TIG welding

Do you want to know what is TIG Welding used for? The aerospace industry is one of the most common uses of the tungsten gas arc. While other than aerospace various other industries are also getting benefits from TIG welding. It is working perfectly to weld thin work pieces more commonly for nonferrous metals. Most importantly, it is extensively used in the manufacturing of space vehicles. It is perfect for thin-wall tubing, small-diameter, and also in the bicycle industry. Even more, welders can use it to develop root and piping of different sizes. Also, welders are using TIG welding to repair dies and tools in repair work and maintenance. Specifically, the components made of magnesium and aluminum.

In fact, no other process of welding is there which can handle huge alloys in various product configurations. It does not create loss which can occur with the electric arc. 

FAQ

Is TIG welding difficult?

A: During the process you have to hold filler material in one hand and torch in the other. So, if you can inexperienced it can be a little tricky. 

Why TIG weld is better?

A: As compared to other types of weld, TIG welds can work on a huge variety of materials. 

Is TIG the strongest type of weld?

A: Yes, TIG is the strongest and aesthetically pleasing type of weld. 

Final words

This is one of the most common types of welding which industries are using at the present time. Even more, it is also offering great control over the area of welding. Because of this, the welders can produce high-quality results in the best possible way.