| AHW | Atomic Hydrogen Welding |
| B | Brazing (Capillary Action) |
| BMAW | Bare Metal Arc Welding |
| BW | Braze Welding ( Groove or Fillet ) |
| CAC-A | Carbon Arc Cutting (Also Gouging) |
| CAW | Carbon Arc Welding |
| CAW-G | Gas Carbon Arc
Welding |
| CAW-S | Shielded Carbon Arc Welding |
| CAW-T | Twin Carbon Arc Welding |
| FCAW | Flux Cored Arc Welding |
| FCAW-G | Gas Shielded Flux Cored Arc Welding |
| FCAW-S | Self Shielded Flux Cored Arc Welding |
| FLSP | Flame Spraying (Oxyfuel Gas) |
| FRW | Friction Welding |
| FSW | Friction Stir
Welding |
| GMAC | Gas Metal Arc Cutting |
| GMAW-P | Gas Metal Arc Welding (Pulsed) |
| GMAW-S | Gas Metal Arc Welding (Short Circuit) |
| LBW | Laser Beam Welding |
| OFW | Oxyfuel Gas
Welding |
| OLC | Oxygen Lance Cutting |
| PSP | Plasma Spraying |
| PW | Resistance
Projection Welding |
| RSEW | Resistance Seam Welding |
| RSW | Resistance Spot Welding |
| SMAC | Shielded Metal Arc Cutting (Hot Rodding) |
| STUD | Stud Welding |
| SW | Arc Stud
Welding |
| TW | Thermite Welding |