In that same year, plasma arc welding was invented.

Plasma arc welding process can be divided into two basic types:

The equipment needed in plasma arc welding along with their functions are as follows:

Plasma arc welding is a constricted arc process.

Typical welding parameters for plasma arc welding are as follows:

Plasma arc welding is an advancement over the GTAW process.

Plasma arc welding has a greater energy concentration as compared to GTAW.

For other everyday applications of plasma gas technology are: Nuclear fusion (future), plasma screen televisions, and computer controlled plasma arc welding machines.

A related process, plasma arc welding, also uses a tungsten electrode but uses plasma gas to make the arc.

A direct current power source(generator or rectifier)having drooping characteristics and open circuit voltage of 70 volts or above is suitable for plasma arc welding.

A related process, plasma arc welding, uses a slightly different welding torch to create a more focused welding arc and as a result is often automated.

Actually all welding arcs are(partially ionized) plasma s but ,the one in plasma arc welding is a constricted arc plasma.

Plasma arc welding (PAW) is an arc welding process similar to gas tungsten arc welding (GTAW).

In 1957, the flux-cored arc welding process debuted, in which the self-shielded wire electrode could be used with automatic equipment, resulting in greatly increased welding speeds, and that same year, plasma arc welding was invented.

Welding in space is also possible-it was first attempted in 1969 by Russian cosmonauts, when they performed experiments to test shielded metal arc welding, plasma arc welding, and electron beam welding in a depressurized environment.

Making a keyhole welds:An outstanding characteristics of plasma arc welding,owing to exceptional penetrating power of plasma jet, is its ability to produce keyhole welds in work piece having thickness from 2.5 mm to 25 mm .