what is welding and its types? explain
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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. Slag protects the weld puddle from atmospheric contamination.
Welding process can be classified as : Gas welding - Oxy acetylene gas welding, Hydrogen gas welding. Arc welding - Metal arc welding(SMAW ), Gas metal arc welding, (MIG, MAG) Tungsten inert gas welding, (TIG) Submerged arc welding,(SAW ) Flux cored arc welding(FCAW ), Electrode slag metal arc welding, etc.
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