What Is TIG Welding And How-To Do TIG Weld

What Is TIG Welding And How-To Do TIG Weld

Posted on Dec 20 , 2021


Jonathan Lewis

TIG welding is a type of weld used for building up thickness and joining metals. TIG stands for Tungsten Inert Gas, which means that TIG welding uses an arc between an electrode on the end of the Tungsten rod and the workpiece.

The TIG welding technique also requires shielding gas (usually Argon) to avoid oxidation while in use. If you're considering TIG welding as your next skill to learn, here are a few helpful tips!

What is TIG welding, And How Does It Work?

TIG welding is a welding process that does not use a metal electrode to carry the electric current. TIG welders have two main pieces of equipment: a TIG torch and a TIG machine. The TIG torch has an electrical contact at the bottom which signals for current to flow through it while also having a nozzle where shielding gas flows out.

The TIG welding process is started by striking an arc between the workpiece (or filler rod) and the Tungsten electrode held in the TIG torch. Tungsten is a heavy metal-containing Tungsten atom, which helps carry an electric current well and heat up quickly during the welding process. Let's see how TIG welding works:

Power Supply With A Constant Current

The power source for TIG welding is a constant current. The arc length is adjusted using the foot pedal, which provides a variable voltage. The continuous current compensates for any changes in the arc length.

The Arc's Beginning

When you initially turn the gas on the torch, start an arc on a metal surface by striking it like a match. Turn the torch's gas on first. Then, with your torch, make a bit of sweeping motion to establish contact between the Tungsten tip and the metal plate. The arc will fire automatically as soon as you complete this step.


TIG welding is a process of joining two materials through the use of Tungsten electrodes. The most heat-resistant and conductive material is utilized in TIG welding because it has the highest resistance and conductivity. Because the electrode is not replaceable, it wears down with usage. A Tungsten electrode with a pointed tip is preferable. For the electric arc to focus on the work surface correctly, the form of the Tungsten electrode does not change throughout the operation. A Tungsten electrode may be constructed from various alloys based on the type of task material and thickness.

Shielding Gas

Gases that can pass through the shielding can be used for shielding. Argon is a noble gas long utilized in TIG Welding because it is readily accessible and straightforward. Helium, unlike Argon, may be added to increase penetration and expand the protected zone; nevertheless, it is more expensive than Argon.

TIG Weld Quality Is Different From Other Types Of Welds

The quality of a TIG weld is determined by various factors, including how quickly you TIG weld and the type of Tungsten electrode being utilized. The TIG welding arc can be controlled by how fast or slow the welder presses on the trigger, which controls whether shielding gas flows through their TIG weld.

Both TIG and MIG welding employ an arc to generate heat and weld materials together; however, they differ in how the arc is utilized throughout the welding operation. During TIG (Tungsten inert gas) welding, a Tungsten electrode creates an electric arc between the torch and the components.

The TIG welder's foot pedal controls the arc length, and one hand holds the sacrificial rod while the other aims the welding electrode at the work surface. MIG (metal inert gas) uses a wire welding electrode unwound from a spool inside a welding machine.

MIG welding is a more rapid learning process than TIG because it takes longer and is less forgiving of common oversights. TIG works with a variety of metals, whereas MIG is restricted to thicker ones.

What Are Some Other Advantages Of Using A Tungsten Electrode TIG Welder?

Tungsten electrodes are one of the most vital parts of TIG welding. Being able to control your TGP weld is crucial for producing high-quality TIG welds, which is why Tungsten TIG welding electrodes allow for precise and accurate changes in current flow during a TIG Weld.

There are many different kinds of Tungsten electrode options, including pure (99%), thoriated (40% - 90%), or ceramic coated, depending on what kind of metal you're working with! It's also essential that every welder understand how their equipment works before using it; this includes knowing how shielding gas flows through TIG welding equipment and Tungsten TIG electrodes. Tungsten TIG electrode is an excellent option for all kinds of metal materials, including aluminum, titanium, and even stainless steel!

It's also worth mentioning that TIG welds are best used when working with metals such as thin sheets or where cleanliness/quality is essential. When using TGP welding to build up the edge on a rusty piece of metal before grinding it down with an angle grinder, there can be some impurities in these types of repairs - which means you should use MIG instead!

How Can I Get Started With TIG Welding?

If you're interested in learning how to start making high-quality TBP welds at home by yourself, TIG welding is an excellent option for you. TGP welding can be used on all kinds of metal materials, depending on what Tungsten TIG electrode you're using, which means it's easy to get started with this process!

To learn how to TIG weld by yourself at home or in your garage, start purchasing essential equipment such as masks and gloves. Once these items have been purchased, head over to the International TIG Association website, where they'll teach users everything there is about MIG cross-arc welding.
Welding; however, if you don't want someone else teaching you how to use their equipment firsthand, TIG welding is also a great option that you can learn by yourself! TIG welding requires a high degree of technical know-how, so it's best to
learn the technique under the supervision of a skilled welder.

To get started with TIG Welding, ensure your workpiece or filler rod is clean and free of any dirt. There are a lot of choices when you're just getting started. First, make a list of your projects ahead of time and determine what you want to accomplish. If you're a gardener, sculptural garden art may be something you wish to pursue. Welding your bike frame might be exciting for a biker. TIG welding has the potential to become a lucrative profession if you have enough experience and technical expertise.

Is It Difficult To Learn How To TIG Weld?

TIG welding is one of the most challenging types of welding, owing to its demanding coordination and training requirements. The procedure includes a foot pedal that adjusts the arc length, one hand feeding the sacrificial rod, and the welder's other hand aiming the electrode at the work surface. Because it takes longer to learn the fundamentals, TIG welding is slower than other forms of welding.

Looking For Professional TIG Welder

It's no secret that welders are in high demand, and we at Superior Welding & Fabrication know how hard it can be to find a qualified TIG welder. Luckily, our team of professional and trained staff is more than happy to help you with all your welding needs.

Visit us online today or give us a call! We look forward to hearing from you soon.

Leave a comment

Please note, comments must be approved before they are published