What is plasma welding?

Plasma is an ionized hot gas that contains approximately the same number of positively charged and negatively charged ions as other gases. Plasma's characteristics are quite different from ordinary neutral gases. This is why plasma is considered a fourth state of matter.

Plasma is simply a gas that has been heated to the point it becomes highly conductive. This allows for the transfer and control of electricity in welding and cutting. Plasma arc temperatures can reach up to 30,000 degrees F.For more articles and reviews about welding visit weldlover.

Plasma welding was first used as a welding method in the 1960s. It was used for special low-current applications (microplasma), which ranged from 0.5 amp to 500 amps for heavy industry.

Plasma welding is still used in many industries, despite being considered an exotic welding process. These are the basics of plasma welding, and how they differ from mainstream processes.

Focused Arc

The tip orifice produces a focused arc, which is one of the main benefits of the PAW process. To meet your specific application requirements, you can adjust the orifice to match your amperage requirements.

Protected Electrode

In plasma welding, unlike TIG welding, where the tungsten electrode was exposed to the atmosphere after the welding cycle, the electron in the plasma process is kept inside the torch chamber and protected with a gas shield. This protects the electrode from being exposed to the atmosphere for extended periods. This dramatically increases productivity in automated applications because it decreases the need for the welding process to make the electrode sharper.

Transfer of Arcs without High Frequency

High frequency is required to transfer the electron from the electrode to workpiece in order to prevent contamination. This can cause problems in automated applications, where high frequencies can interrupt or interfere with control equipment. This transfer method can also wear down the electrode prematurely in welds that are high volume and short duration. You will need to stop the process of sharpening the tungsten electrode.