Heliarc welding, also known as tungsten and gas shielded arc welding (TIG welding), is an arc welding process used for both fabrication and repairs of a variety of materials. It is a popular welding process with numerous applications due to its versatility and ability to produce high-quality welds with minimal distortion.
As of 2021, the global heli arc welding industry is valued at about 65 billion USD and is on the rise. This article will provide an overview of the process and explain its different features and applications so that you can determine if it is the right welding process for your next project.
What Is Heli Arc Welding?Heli arc welding, sometimes referred to as “heli welding”, is a specialized form of electric arc welding.
It is sometimes also referred to as “gas tungsten arc welding”, or “GTAW”. The use of high-strength electric current and a shielded arc are both core elements of the process, as is the use of non-consumable electrodes.
The Benefits of Heli Arc WeldingDue to the exposure to intense heat and the ability to form any shape of weld with pinpoint accuracy, Heli arc welding can be incredibly useful in certain industries.
Here are the benefits of Heli arc welding:
Very High StrengthHeli arc welding produces a weld with a very high strength. This makes it well-suited for welding stainless steel and other hard metals, where a high strength weld is essential.
Minimal DistortionHeli arc welding produces a low level of weld distortion (when compared to other welding processes) due to a lower heat input and a restricted weld puddle. This can be particularly beneficial for welding thin sheets of metal and other precision applications.
AccurateThe high accuracy achievable with Heli arc welding is one of the primary benefits of the process.
In most cases, the level of accuracy achievable is within 0. 1mm.
The Drawbacks of Heli Arc WeldingDespite the clear benefits of Heli arc welding, like all things there are drawbacks to consider.
Here are the drawbacks of Heli arc welding: