Working principle of argon arc welding
Release Time:
Jul 21,2025
In argon arc welding applications, the current required for welding is conducted through a tungsten electrode that is resistant to high temperatures and not easily melted.
In argon arc welding applications, the current required for welding is conducted through a tungsten electrode that is resistant to high temperatures and not easily melted. The tungsten electrode generates an electric arc to heat and liquefy the material. At the same time, the welding gun nozzle continuously sprays protective gas, forming a gas protective layer around the arc to prevent chemical reactions between the heated base material and the surrounding air. For this purpose, inert gases such as argon, helium, or their mixtures are used as protective gases. Inert gas, also known as non reactive gas, can prevent chemical reactions between the liquid melt pool and the heated base material, thereby ensuring high-quality welds.
Due to the non melting of tungsten electrode in TIG welding, the filling material is completely manually operated or automatically fed through an external wire feeding device.
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