list of welding processes

! width=20% | Name !! width=5% | N !! width=5% | AWS !! width=45%| Characteristics !! width=25%| Applications

| (113)

| Consumable electrode, no flux or shielding gas

| Historical

| (181)

| Carbon electrode, historical

| Copper, repair (limited)

| 136
138

| Continuous consumable electrode filled with flux

| Industry, construction

| 131
135

| Continuous consumable electrode and shielding gas

| Industry

| 141

| Nonconsumable electrode, slow, high quality welds

| Aerospace, Construction (piping), Tool and Die

| 15

| Nonconsumable electrode, constricted arc

| Tubing, instrumentation

| 111

| Consumable electrode covered in flux, can weld any metal as long as they have the right electrode

| Construction, outdoors, maintenance

| 121

| Automatic, arc submerged in granular flux

|

| 185

| Both tube ends are electrodes; no protection gas; arc rotates fast along edge by applied magnetic field

| Pipelines and tubes

|(149)

|AHW

|Two metal electrodes in hydrogen atmosphere

|Historical

! width=20% | Name !! wisth=5% | N !! width=5% | AWS !! width=45%| Characteristics !! width=25%| Applications

| (321)

| Chemical welding process, not popular

| Limited

| 311

| Combustion of acetylene with oxygen produces high-temperature flame, inexpensive equipment

| Maintenance, repair

| 312

|

| 313

| Combustion of hydrogen with oxygen produces flame

| Limited

|

| Gas flames heat surfaces and pressure produces the weld

| Pipe, railroad rails (limited)

! width=20% | Name !! width=5% | N!! width=5% | AWS !! width=45%| Characteristics !! width=25%| Applications

| 21

| Two pointed electrodes apply pressure and current to two or more thin workpieces

| Automobile industry, Aerospace industry

| 22

| Two wheel-shaped electrodes roll along workpieces, applying pressure and current

| Aerospace industry, steel drums, tubing

| 23

|Semi-Automatic, Automatic, Welds are localized at predetermined points.

|

| 24

|

|

| 25

| Butt joint surfaces heated and brought together by force

|

! width=20% | Name !! width=5% | N !! width=5% | AWS !! width=45%| Characteristics !! width=25%| Applications

|

| Dissimilar metals are extruded through the same die

| Joining of corrosion resistant alloys to cheaper alloys or alloys with more favorable mechanical properties

| 48

| Joining of soft alloys such as copper and aluminium below their melting point

| Electrical contacts

| 45

| No weld line visible

| Titanium pump impellor wheels

| 441

| Joining of dissimilar materials, e.g. corrosion resistant alloys to structural steels

| Transition joints for chemical industry and shipbuilding. Bimetal pipelines

|

| Automotive industry, pressure vessels, dissimilar material joints

| (43)

| The oldest welding process in the world. Oxides must be removed by flux or flames.

| Damascus steel

| 42

| Thin heat affected zone, oxides disrupted by friction, needs sufficient pressure

| Aerospace industry, railway, land transport

| 43

| A rotating non-consumable tool is traversed along the joint line

| Shipbuilding, aerospace, railway rolling stock, automotive industry

|

| A rotating non-consumable tool is plunged into overlapping sheets

| Automotive industry

|

| Metals are pressed together at elevated temperatures below the melting point in vacuum or an inert gas atmosphere

| Aerospace components

| 47

| A hot inert gas applies the pressure inside a pressure vessel, i.e. an autoclave

| Aerospace components

|

| Bimetallic materials are joined by forcing them between two rotating wheels

| Dissimilar materials

| 41

| High-frequency vibratory energy is applied to foils, thin metal sheets or plastics.

| Solar industries-. Electronics. Rear lights of cars. Diapers.

! width=20% | Name !! width=5% | N !! width=5% | AWS !! width=46%| Characteristics !! width=25%| Applications

| 51
511

| Deep penetration, fast, high equipment cost

|

| 72

| Welds thick workpieces quickly, vertical position, steel only,
continuous consumable electrode

| Heavy plate fabrication, construction,
shipbuilding

|

|Joining rails in situ by liquid metal

| 74

|

|

| 521
522

| Deep penetration, fast, high equipment cost

| Automotive industry

|

| Automotive, Shipbuilding, Steelwork industries

| 77

| Following an electrical discharge, pressure is applied which forges the materials together

| Components of switch gear devices

| 71

| Exothermic reaction between aluminium powder and iron oxide powder

| Railway tracks

| 73

| Storage tanks, shipbuilding

| 78

|