List of welding processes

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This is a list of welding processes, separated into their respective categories.

Contents

[edit] Arc welding

Name Characteristics Applications
Atomic hydrogen welding Two metal electrodes in hydrogen atmosphere Historical
Bare metal arc welding Consummable electrode, no flux or shielding gas Historical
Carbon arc welding Carbon electrode, historical Copper, repair (limited)
Electrogas welding Continuous consumable electrode, vertical positioning, steel only Storage tanks, shipbuilding
Flux cored arc welding Continuous consumable electrode filled with flux Industry, construction
Gas metal arc welding ¹ Continuous consumable electrode and shielding gas Industry
Gas tungsten arc welding ² Nonconsumable electrode, slow, high quality welds Aerospace
Plasma arc welding Nonconsumable electrode, constricted arc Tubing, instrumentation
Shielded metal arc welding ³ Consumable electrode covered in flux, steel only Construction, outdoors
Stud arc welding Welds studs to base material with heat and pressure Construction, shipbuilding
Submerged arc welding Automatic, arc submerged in granular flux Ship industry
  1. Also known as metal inert gas (MIG) welding or metal active gas (MAG) welding
  2. Also known as tungsten inert gas (TIG) welding
  3. Also known as manual metal arc (MMA) welding or stick welding

[edit] Oxyfuel gas welding

Name Characteristics Applications
Air acetylene welding Chemical welding process, not popular Limited
Oxyacetylene welding Combustion of acetylene with oxygen produces high-temperature flame, inexpensive equipment Maintenance, repair
Oxyhydrogen welding Combustion of hydrogen with oxygen produces flame Limited
Pressure gas welding Gas flames heat surfaces and pressure produces the weld Pipe, railroad rails (limited)

[edit] Resistance welding

Name Characteristics Applications
Flash welding
Pressure-controlled resistance welding
Projection welding
Resistance seam welding Two wheel-shaped electrodes roll along workpieces, applying pressure and current
Resistance spot welding Two pointed electrodes apply pressure and current to two or more thin workpieces Automobile industry
Upset welding Butt joint surfaces heated and brought together by force

[edit] Solid-state welding

Name Characteristics Applications
Coextrusion welding
Cold welding
Diffusion welding
Explosion welding
Forge welding
Friction welding Thin heat affected zone, need sufficient pressure Aerospace industry, railway, land transport
Friction stir welding
Hot pressure welding
Roll welding Dissimilar materials.
Ultrasonic welding

[edit] Other welding

Name Characteristics Applications
Electron beam welding Deep penetration, fast, high equipment cost
Electroslag welding Welds thick workpieces quickly, vertical position, steel only Heavy plate fabrication, construction
Flow welding
Induction welding
Laser beam welding Deep penetration, fast, high equipment cost Automotive industry
Laser-hybrid welding Combines LBW with GMAW in the same welding head, able to bridge gaps up to 2mm (between plates), previously not possible with LBW alone. Automotive, Shipbuilding, Steelwork industries
Percussion welding
Thermite welding Railway tracks.

[edit] References

[edit] External links

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