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ARCH5023/ARCH4333 - ARCHITECTURAL STRUCTURES I

][ STEEL STRUCTURES ][
THE UNIVERSITY OF OKLAHOMA - COLLEGE OF ARCHITECTURE
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WELDED CONNECTIONS -WELDING TYPES

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WELDING

Welding Processes

        gas

        electric

WELDING PROCESSES
===================
1. Oxyacetylene Welding (OAW)
2. Torch Soldering (TS)
3. Torch Brazing (TB)
4. Shielded Metal ARC Welding (SMAW)
5. Gas Tungsten ARC Welding (GTAW)
6. Gas Metal ARC Welding (GMAW)
7. Flux Cored ARC Welding (FCAW)
8. Resistance Spot Welding (RSW)
9. Projection Welding (RPW)
10. Flash Welding (FW)
11. Resistance Seam Welding (RSEW)
12. Submerged ARC Welding (SAW)
13. Electroslag Welding (ESW)
14. Stud ARC Welding (SW)
15. Cold Welding (CW)
16. Explosion Welding (EXW)
17. Forge Welding (FOW)
18. Friction Welding (FRW)
19. Ultrasonic Welding (USW)
20. Laser Beam Welding (LBW)
21. Electron Beam Welding (EBW)
22. Torch Plastic Welding

1. Oxyacetylene Welding (OAW)
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	flame melts most metals
	also used for all types of brazing
	oxygen + fuel gas
		fuel gases:
			acetylene
			liquefied petroleum = LP
			methylacetylene propadiene=MAPP
			natural gas
			hydrogen

2. Torch Soldering (TS)
=================
	below 840 (449 C)
	basemetal heated to melt solder
	air + fuel gas
		fuel gas
				MAPP
				LP
		uses:
				fill seam
				air-tight seam
				soft soldering
				braze small parts

Cutting Processes
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1. Oxyfuel Gas Cutting (OFC)
	oxyfuel raises temperature
	1472 - 1832 (800-1000 C)
	high-pressure oxygen burns metal
2. Air Carbon ARC Cutting (AAC)
3. Oxygen ARC Cutting (AOC)
4. Gas Tungsten ARC Cutting (GTAC)
5. Shielded Metal ARC Cutting (SMAC)
6. Plasma ARC Cutting (PAC)
7. Oxygen Lance Cutting (LOC)
8. Oxyfuel Gas Underwater Cutting
9. Chemical Flux Cutting (FOC)