TIG welding has been growing in popularity in the recent years. And even though there are more than 60 welders to join metal, TIG welding is one of the most popular and favoured methods. So what does a TIG welder do to stand it out in the competition? We have the answer right here!
What Exactly Is TIG Welding?
TIG is short for Tungsten Inert Gas, which is also known as GTAW – Gas Tungsten Arc Welding or Heliarc welding.
TIG welding utilizes a tungsten electrode, which is quite different from other mainstream electrodes. Tungsten has an extremely high melting point, so when you TIG weld, the electrode gets hot but doesn’t melt or become part of the weld (non-consumable electrode).
When TIG welding, the heat melts the base metal. The heat comes from an electric arc formed between the non-consumable electrode and the base metal.
What Does A TIG Welder Do?
Weld most metals, even thin-gauge materials
The current in most metals is direct current (DC). In these cases, the workpiece is positive, and the electrode is usually negative. This process, which is known as DCEN, puts most of the heat on the workpiece.
TIG welding can also be used for thinner-gauge materials such as stainless steel and aluminium. However, when welding aluminium, Alternating Current (AC) will be present.
In AC, the negative and positive voltages go back and forth between the workpiece and the electrode. There will be more heat applied on the electrode, but even when it gets several times hotter, the electrode won’t melt.
Produce weld on projects that need finely crafted and clean result
TIG welding is the go-to process when it comes to fine-tuning metal projects such as ornamental pieces or gunsmithing. It is also favoured in industries that require precision like aerospace, transportation, and military.
This welding method can create a neat bond without deteriorating the metals. In aluminium cases, TIG welding removes the oxides, exposing the clean and fresh surface. So if you want the welds to hold up with professional quality, TIG welding should be the method of choice.
Give full control over the welding process
For fussy metal such as stainless steel or aluminium, TIG welding is normally preferred as it offers more harnessing over the entire process. Specifically, by pressing the foot pedal or switching the torch’s thumbwheel, you can increase or decrease the heat accordingly.
Also, as the filler materials are added separately, TIG welding enables the operator to control both the weld’s depth and the speed. Even though TIG welding can be slower than other processes, its performance is totally worth your patience.
Provide superior durability with less maintenance
High-tech, high-impact industries, or professional-grade welding projects are what a TIG welder used for. It works with a level of delicacy that many other welding methods cannot achieve.
And as TIG welding involves using filler materials, it does not result in any spatter, smoke, and residue. The cleanup work is just minimal. Also, with a high level of control, this welding technique guarantees fewer defects, which means you will not have to maintain your workpiece over and over.
Produce less harm to the environment
TIG produces fewer sparks and contaminants, which is a big benefit for both your health and the environment. However, it is not an excuse for not wearing Personal Protection Equipment while welding.
Make sure you stay safe and sound in your designed-for-welding PPE – helmet, gloves, apron, shoes, and flame-resistant clothing. For certain welding jobs, hearing protection, respirator, and a screen would also be necessary.
The Closing Line
Above is the comprehensive answer to the question – “What does a TIG welder do?” Understanding its mechanism and advantages will help you choose the most suitable welding method for your projects.
Overall, TIG or GTAW is a professional welding method that can produce a weld that is strong, durable, easy-to-clean, and above all, eco-friendly. It is best for projects with high demand for welding performance and results.