Fastening & Joining Methods

 

Fusion Welding Processes
Arc-welding	Oxyacetylene Gas Welding (OFW)
Shielded-metal Arc Welding (SMAW)	Laser-beam Welding (LBW)
Gas-metal Arc Welding (GMAW) or (MIG)	Electroslag Welding (ESW)
Fluxed-core Arc Welding (FCAW)	Electron-beam Welding (EBW)
Gas-tungsten Arc Welding (GTAW) or (TIG)	Percussive Arc Welding
Submerged Arc Welding (SAW)	Resistance Spot Welding (RSW)
Plasma Arc Welding (PAW)

Plasma Arc Welding (PAW)

In the Plasma Arc Welding (PAW) process, a non-consumable tungsten electrode and a shielding gas is used in a way similar to TIG welding. The plasma torch uses a constriction cup, which forces the arc out into a narrow jet. When the diameter of the constriction cup is reduced, a finer arc jet is produced which can be used for cutting or gouging applications. Arc cutting is the general process in which the cutting or removal of metals is completed by melting with the heat of an arc between the base metal and the electrode.