List of welding processes 2108110 221990084 2008-06-27T00:55:22Z Georgewilliamherbert 358954 /* Arc welding */ + electroslag welding This is a '''list of welding processes''', separated into their respective categories. ==Arc welding== {| border="2" cellpadding="4" cellspacing="0" style="margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px #aaa solid; border-collapse: collapse;" |- bgcolor="#efefef" ! width=25% | Name !! width=50%| Characteristics !! width=25%| Applications |- | [[Atomic hydrogen welding]] | Two metal electrodes in hydrogen atmosphere {{inote|MWT7}} | Historical |- | [[Bare metal arc welding]] | Consummable electrode, no flux or shielding gas {{inote|MWT7}} | Historical |- | [[Carbon arc welding]] | Carbon electrode, historical | Copper, repair (limited) |- | [[Electrogas welding]] | Continuous consumable electrode, vertical positioning, steel only | Storage tanks, shipbuilding |- | [[Electroslag 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 |} #Also known as metal inert gas (MIG) welding or metal active gas (MAG) welding #Also known as tungsten inert gas (TIG) welding #Also known as manual metal arc (MMA) welding or stick welding ==Oxyfuel gas welding== {| border="2" cellpadding="4" cellspacing="0" style="margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px #aaa solid; border-collapse: collapse;" |- bgcolor="#efefef" ! width=25% | Name !! width=50%| Characteristics !! width=25%| 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) |} ==Resistance welding== {| border="2" cellpadding="4" cellspacing="0" style="margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px #aaa solid; border-collapse: collapse;" |- bgcolor="#efefef" ! width=25% | Name !! width=50%| Characteristics !! width=25%| Applications |- | [[Flash welding]] | | |- | [[Percussion 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 | |} ==Solid-state welding== {| border="2" cellpadding="4" cellspacing="0" style="margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px #aaa solid; border-collapse: collapse;" |- bgcolor="#efefef" ! width=25% | Name !! width=50%| Characteristics !! width=25%| 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]] | | |} ==Other welding== {| border="2" cellpadding="4" cellspacing="0" style="margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px #aaa solid; border-collapse: collapse;" |- bgcolor="#efefef" ! width=25% | Name !! width=50%| Characteristics !! width=25%| 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 [[Laser beam welding|LBW]] with [[Gas metal arc welding|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. |- |} ==References== *Cary, Howard B. and Scott C. Helzer ([[2005]]). Modern Welding Technology. Upper Saddle River, [[New Jersey]]: Pearson Education. ISBN 0-13-113029-3. *Lincoln Electric ([[1994]]). The Procedure Handbook of Arc Welding. [[Cleveland]]: Lincoln Electric. ISBN 99949-25-82-2. ==External links== * [http://www.key-to-steel.com/Articles/Art75.htm Welding process information] * [http://www.key-to-steel.com/Articles/Art76.htm Resistance welding process information] {{Metalworking - Welding}} [[Category:Welding]] [[Category:Technology-related lists|Welding processes]]