Plasma Welding Guidelines:
Plasma-welding-tips are useful reminders intended to stress the main characteristics of Plasma Arc Welding (PAW) for the correct exploitation of its specific advantages.
The first of the Plasma-welding-tips is a correct definition of PAW, useful for understanding the differences that make the process unique.
Plasma Arc Welding is defined as a gas shielded arc welding process where the heat for welding is generated by an arc producing collimated plasma by the passage of the shielding gas through a constricting nozzle.
The copper alloy nozzle is called constricting because it presents a limited diameter orifice, through which the shielding gas, highly ionized by its transit through the arc, must pass.
The concentrated and collimated jet stream of ionized gas (composed of nearly equal number of electrons and ions of gas atoms and molecules) that exits at very high temperature (about 17,000 0C or 30,000 0F) from the constricting nozzle is called a plasma column.
Plasma Arc Welding can be performed with or without additional filler metal. In manual applications, the filler metal as added as needed by hand. In the mechanized version, the filler metal is added from the side by a wire feeder.
Plasma-welding-tips concerns understanding the specific features of the process detailed below, and using its capabilities for obtaining successful welding results.
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