How Does Argon Welding Work

How Does Argon Welding Work

Welding is a metal joining process used for centuries to join and repair different types of metals. Various welding techniques exist, but argon welding is one of the most popular due to its versatility, precision, and reliability. Argon gas is a shielding gas in welding, but do you know how argon welding works? Keep reading to find out.

A welder uses an electric arc to melt the base and filler metals in argon welding. The electric arc creates temperatures of up to 10000 degrees Fahrenheit, which melts the metal and allows the welder to join the two metals. However, during the welding process, it is essential to ensure that the metals do not come into contact with oxygen and other atmospheric gases. Otherwise, they may oxidize and create a porous weld. This is where argon gas comes in.

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Argon gas is used as a shielding gas during argon welding. The gas is inert and does not react to the welded metals. When the welder ignites the arc, it creates a pool of molten metal. The welder then uses a filler metal, usually added to the weld pool, to fill any gaps or areas that require strengthening. To prevent the weld from oxidizing, the welder directs the argon gas flow from the welding torch onto the weld pool to create a shield around the molten metal. This shielding gas displaces the atmospheric gases that can cause oxidation and ensures a clean, strong, and precise weld.

One of the advantages of argon welding is that it allows welders to work with various metals, including steel, aluminium, and stainless steel. This is because argon is compatible with most metals and ensures no contamination during welding. Besides, argon welding is the preferred method for TIG welding, a process used to weld thin metals and create intricate shapes. Due to the precise control required during TIG welding, argon gas is the ideal shielding gas.

Another advantage of argon welding is that it produces high-quality welds. Welders can adjust the flow rate of the argon gas depending on the type of metal and thickness to ensure a clean and robust weld. Besides, since argon welding uses a filler metal, the resulting weld is usually stronger than the base metal, making it ideal for structural welding where strength is crucial.


In conclusion, argon welding is a versatile, precise, and reliable technique that produces high-quality welds. The welding process uses argon gas as a shielding gas to prevent atmospheric gases from oxidizing the metals during the welding process. This ensures a clean and robust weld ideal for structural and TIG welding, where precision and control are critical. Consider argon welding if you’re looking for a method that guarantees high-quality welds and versatility.



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