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Welding abstract "Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing fusion, which is distinct from lower temperature metal-joining techniques such as brazing and soldering, which do not melt the base metal. In addition to melting the base metal, a filler material is often added to the joint to form a pool of molten material (the weld pool) that cools to form a joint that can be as strong as the base material. Pressure may also be used in conjunction with heat, or by itself, to produce a weld.Some of the best known welding methods include:Shielded metal arc welding (SMAW) - also known as "stick welding or electric welding", uses an electrode that has flux, the protectant for the puddle, around it. The electrode holder holds the electrode as it slowly melts away. Slag protects the weld puddle from atmospheric contamination.Gas tungsten arc welding (GTAW) - also known as TIG (tungsten, inert gas), uses a non-consumable tungsten electrode to produce the weld. The weld area is protected from atmospheric contamination by an inert shielding gas such as Argon or Helium.Gas metal arc welding (GMAW) - commonly termed MIG (metal, inert gas), uses a wire feeding gun that feeds wire at an adjustable speed and flows an argon-based shielding gas or a mix of argon and carbon dioxide (CO2) over the weld puddle to protect it from atmospheric contamination.Flux-cored arc welding (FCAW) - almost identical to MIG welding except it uses a special tubular wire filled with flux; it can be used with or without shielding gas, depending on the filler.Submerged arc welding (SAW) - uses an automatically fed consumable electrode and a blanket of granular fusible flux. The molten weld and the arc zone are protected from atmospheric contamination by being "submerged" under the flux blanket.Electroslag welding (ESW) - a highly productive, single pass welding process for thicker materials between 1 inch (25 mm) and 12 inches (300 mm) in a vertical or close to vertical position.Many different energy sources can be used for welding, including a gas flame, an electric arc, a laser, an electron beam, friction, and ultrasound. While often an industrial process, welding may be performed in many different environments, including in open air, under water, and in outer space. Welding is a hazardous undertaking and precautions are required to avoid burns, electric shock, vision damage, inhalation of poisonous gases and fumes, and exposure to intense ultraviolet radiation.Until the end of the 19th century, the only welding process was forge welding, which blacksmiths had used for centuries to join iron and steel by heating and hammering. Arc welding and oxyfuel welding were among the first processes to develop late in the century, and electric resistance welding followed soon after. Welding technology advanced quickly during the early 20th century as World War I and World War II drove the demand for reliable and inexpensive joining methods. Following the wars, several modern welding techniques were developed, including manual methods like SMAW, now one of the most popular welding methods, as well as semi-automatic and automatic processes such as GMAW, SAW, FCAW and ESW. Developments continued with the invention of laser beam welding, electron beam welding, magnetic pulse welding (MPW), and friction stir welding in the latter half of the century. Today, the science continues to advance. Robot welding is commonplace in industrial settings, and researchers continue to develop new welding methods and gain greater understanding of weld quality.".
Welding thumbnail GMAW.welding.af.ncs.jpg?width=300.
Welding wikiPageID "44883".
Welding wikiPageLength "60422".
Welding wikiPageOutDegree "303".
Welding wikiPageRevisionID "683584303".
Welding wikiPageWikiLink Acetylene.
Welding wikiPageWikiLink Acrylonitrile_butadiene_styrene.
Welding wikiPageWikiLink Alloy.
Welding wikiPageWikiLink Alternating_current.
Welding wikiPageWikiLink Aluminium.
Welding wikiPageWikiLink American_Welding_Society.
Welding wikiPageWikiLink Amorphous_solid.
Welding wikiPageWikiLink Ampere.
Welding wikiPageWikiLink Annealing_(glass).
Welding wikiPageWikiLink Anode.
Welding wikiPageWikiLink Arc_eye.
Welding wikiPageWikiLink Arc_welding.
Welding wikiPageWikiLink Argon.
Welding wikiPageWikiLink Atomic_hydrogen_welding.
Welding wikiPageWikiLink Austenitic_stainless_steel.
Welding wikiPageWikiLink Austenitic_steel.
Welding wikiPageWikiLink Bar_joist.
Welding wikiPageWikiLink Bicycle.
Welding wikiPageWikiLink Blacksmith.
Welding wikiPageWikiLink Blood_brain_barrier.
Welding wikiPageWikiLink Blood–brain_barrier.
Welding wikiPageWikiLink Body-centred_cubic.
Welding wikiPageWikiLink Borosilicate_glass.
Welding wikiPageWikiLink Brazing.
Welding wikiPageWikiLink Brittle.
Welding wikiPageWikiLink Brittleness.
Welding wikiPageWikiLink Bronze_Age.
Welding wikiPageWikiLink Burn.
Welding wikiPageWikiLink Butt_welding.
Welding wikiPageWikiLink C._L._Coffin.
Welding wikiPageWikiLink Carbon_arc_welding.
Welding wikiPageWikiLink Carbon_dioxide.
Welding wikiPageWikiLink Cast_iron.
Welding wikiPageWikiLink Category:Articles_containing_video_clips.
Welding wikiPageWikiLink Category:IARC_Group_2B_carcinogens.
Welding wikiPageWikiLink Category:Industrial_gases.
Welding wikiPageWikiLink Category:Repurposing.
Welding wikiPageWikiLink Category:Welding.
Welding wikiPageWikiLink Charles_L._Coffin.
Welding wikiPageWikiLink Chemical_bond.
Welding wikiPageWikiLink Chemical_decomposition.
Welding wikiPageWikiLink Cladding_(metalworking).
Welding wikiPageWikiLink Cleveland.
Welding wikiPageWikiLink Close-packing_of_equal_spheres.
Welding wikiPageWikiLink Cold_welding.
Welding wikiPageWikiLink Compressive.
Welding wikiPageWikiLink Copper.
Welding wikiPageWikiLink Cornea.
Welding wikiPageWikiLink Covalent.
Welding wikiPageWikiLink Covalent_bond.
Welding wikiPageWikiLink Cruciform_joint.
Welding wikiPageWikiLink Crystal_structure.
Welding wikiPageWikiLink Cubic_crystal_system.
Welding wikiPageWikiLink De_la_pirotechnia.
Welding wikiPageWikiLink Delhi.
Welding wikiPageWikiLink Destructive_testing.
Welding wikiPageWikiLink Diffusion_bonding.
Welding wikiPageWikiLink Diffusion_welding.
Welding wikiPageWikiLink Direct_current.
Welding wikiPageWikiLink Ductile.
Welding wikiPageWikiLink Ductility.
Welding wikiPageWikiLink Dye_penetrant_inspection.
Welding wikiPageWikiLink Edmund_Davy.
Welding wikiPageWikiLink Efficient_energy_use.
Welding wikiPageWikiLink Electric_arc.
Welding wikiPageWikiLink Electric_current.
Welding wikiPageWikiLink Electric_power.
Welding wikiPageWikiLink Electric_resistance_welding.
Welding wikiPageWikiLink Electric_shock.
Welding wikiPageWikiLink Electrical_current.
Welding wikiPageWikiLink Electrode.
Welding wikiPageWikiLink Electrogas_welding.
Welding wikiPageWikiLink Electron_beam_welding.
Welding wikiPageWikiLink Electroslag_welding.
Welding wikiPageWikiLink Elihu_Thomson.
Welding wikiPageWikiLink Energy_development.
Welding wikiPageWikiLink Energy_source.
Welding wikiPageWikiLink Engineer.
Welding wikiPageWikiLink Engineers.
Welding wikiPageWikiLink Epoxy.
Welding wikiPageWikiLink Europe.
Welding wikiPageWikiLink Exothermic_welding.
Welding wikiPageWikiLink Explosion_welding.
Welding wikiPageWikiLink Fabrication_(metal).
Welding wikiPageWikiLink Face-centred_cubic.
Welding wikiPageWikiLink Ferrous.
Welding wikiPageWikiLink Fiber.
Welding wikiPageWikiLink Fibrous.
Welding wikiPageWikiLink File:AlfredPalmerwelder1.jpg.
Welding wikiPageWikiLink File:GMAW.welding.af.ncs.jpg.
Welding wikiPageWikiLink Filter_(optics).
Welding wikiPageWikiLink Fire.
Welding wikiPageWikiLink Flash_welding.
Welding wikiPageWikiLink Flashtube.