What is TIG Welding?

What is TIG Welding?

The TIG welding process is a highly complex, precise and versatile arc welding method that can join almost any metal. TJG stands for tungsten inert gas. It involves the use of a gas (usually argon) to protect the weld pool from airborne contaminants. It can be used for more metals than any other type of welding, including steel, chromium-molybdenum steel, magnesium, copper, gold, bronze, brass, stainless steel, aluminum, etc. TIG welding is used in many industries, including construction and repair, art, automotive work, aerospace engineering, and more.

Advantages and Disadvantages of TIG Welding

Maximum joint quality.

Weld almost any material.

Ideal for thin stock.

Low potential for weld contamination.

Welding with or without filler metal.

No spatter or fumes.

No flux or slag required.

Allows welding in all positions.

Maximizes arc and heat input control.

Provides excellent arc and weld pool visibility.

Best TIG weld results.

How Does a TJG Welding Machine Work?

When using a TIG welding machine, a non-consumable tungsten electrode creates an electric arc between the metal parts to be welded together. This arc is very hot - over 6,000 degrees Fahrenheit. This causes the two pieces to essentially melt together. At the same time, inert gas (usually argon) is exhausted by the torch to protect the weld area from contamination.

Filler metal can be used when performing TIG welding, but it is not required. You can weld two parts together without filler metal. However, if you use filler metal, it will melt and solidify in the arc, joining the two pieces together.

The tungsten electrode is mounted inside the torch and you will touch the metal to be welded with the nozzle. You will operate the machine with the foot pedal and when you depress the foot pedal, the gas will begin to escape and the current will run so you can create an arc. Releasing the foot pedal will stop the process.

You will create a TIG weld by placing small individual welds directly side-by-side. Each weld will be created by a single contact of the torch with the metal. If you are using filler, the filler rod will be touched to the same location as the electrode contact. However, if you choose to weld without filler, you will simply touch the electrode to the seam between the metal pieces and a small weld will be created.

Are you interested in learning more about TIG welding machine and how they can benefit you? Contact us today to secure an expert consultation!