What is Heliarc Welding

Heliarc Welding

Heliarc welding is a type of gas tungsten arc welding (GTAW) that uses a tungsten electrode and an inert gas to create a weld.

The name Heliarc comes from Helium gas, that was used for shielding purposes in this welding process.

"Helium arc welding= Heliarc Welding"

In present days, Heliarc welding is known as TIG (tungsten inert gas) welding. The process is used to weld a wide range of metals, including aluminum, titanium, and stainless steel.

What is Heliarc Welding Process?

Heliarc Welding is inert gas welding process that is used to make high quality welds. Heliarc welding includes:

• Heliarc welding is a precise and clean process that uses a non-consumable tungsten electrode to create an arc between the electrode and the metal being welded.

• An inert gas, such as argon or helium, is used to shield the weld from contaminants in the air.

• The welder uses a filler metal, if necessary, to add material to the joint being welded.

• The welder uses a foot pedal or hand control to adjust the current and control the heat of the weld.

How Heliarc Welding Works?

• A tungsten electrode is used to create an arc between the electrode and the metal being welded.

• The heat from the arc melts the metal and the welder uses a filler metal, if necessary, to add material to the joint being welded.

• The inert gas flows over the weld pool, shielding it from contaminants in the air to prevent the oxidation.

What Equipment Is Used When Heliarc Welding?

Heliarc welding, also known as Tungsten Inert Gas (TIG) welding, require following equipment:

1. A TIG welding machine,
2. Tungsten electrode,
3. Welding torch,
4. Filler metal,
5. Supply of inert gas such as argon or helium.

Additionally, personal protective equipment such as a welding helmet and gloves should be worn to protect the welder from the intense light and heat generated during the welding process.

Who Invented Heliarc Welding?

Heliarc welding, also known as Tungsten Inert Gas (TIG) welding, was invented by Russell Meredith in 1941. Meredith was given US Patent 2274631 for developing the Heliarc arc welding.

He developed the process as a way to improve upon the traditional gas welding process and make it more efficient and precise.

His invention of TIG welding revolutionized the welding industry and is still widely used today.

Does Heliarc and TIG welding are same?

Yes, Heliarc and TIG welding are the same thing. Heliarc welding is a brand name for TIG welding.

TIG welding is the more commonly used term. With time, Heliarc welding name is referred by Tungsten Inert gas welding as both Helium & argon gases (Inert gases) are used with this welding process.

The process official name is Gas Tungsten arc welding as referred by American Welding Society (AWS) as well as by International Institute of Welding (IIW).

Benefits of Heliarc Welding

• Heliarc welding is a very precise process that allows for tight tolerances and a high-quality finished product.

• The process produces very little smoke or spatter, making it a clean option for welding in tight spaces or areas where smoke or spatter would be a problem.

• The process is also very versatile and can be used on a wide range of metals, including aluminum, titanium, and stainless steel.

TIG vs Heliarc Welding

• TIG welding is the more commonly used term for Heliarc welding.
• Both TIG and Heliarc welding use a tungsten electrode and an inert gas to create a weld.

• TIG welding is more versatile and can be used on a wider range of metals.
• Both processes produce high-quality welds with tight tolerances and little smoke or spatter.

Conclusion

• Heliarc welding, also known as TIG welding, is a precise and clean process that uses a non-consumable tungsten electrode and an inert gas to create a weld.

• The process is used to weld a wide range of metals, including:
  • Aluminum
  • Titanium
  • Stainless steel

• Benefits of Heliarc welding include:
  • High precision
  • Low smoke and spatter
  • Versatility

• TIG welding is the more commonly used term for Heliarc welding.
• Both TIG and Heliarc welding use a tungsten electrode and an inert gas to create a weld.
• TIG welding is more versatile and can be used on a wider range of metals.
• Both processes produce high-quality welds with tight tolerances and little smoke or spatter.

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