Welding
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Welding is a fabrication process that joins materials, usually metals or thermoplastics, primarily by using high temperatures to melt the parts together and allow them to cool, causing fusion. Common
Overhead stick welding
Arc welding metal plates
The iron pillar of Delhi, India
Acetylene welding on a cylinder water jacket, US Army 1918
Brazing
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Brazing is a metal-joining process in which two or more metal items are joined by melting a filler metal which flows into the joint, with the filler metal having a lower melting point than the adjoini
Welding
…without melting, such as pressure, cold welding, and diffusion bonding. Metal welding is distinct from lower-temperature bonding techniques such as brazing and soldering, which do not melt the base metal (parent metal) and instead require flowing a filler metal to solidify their bonds. In addition to melting…
Brazing practice
A worker brazing metal tools in a British workshop during the First World War
A US Navy maintenance technician torch brazes a steel pipe
Crack in 90–10 Cu–Ni metal plate due to stresses during silver brazing