Noun
arc welding (uncountable)
(metallurgy) The process of welding two pieces of metal together using the heat generated by an electric arc between two electrodes.
A related process, plasma arc welding, also uses a tungsten electrode but uses plasma gas to make the arc. Source: Internet
Aware the difficulties in laying transatlantic cable had not yet been solved, Lindsay took a great interest in the debate, with the revolutionary suggestion of using electric arc welding to join cables, and sacrificial anodes to prevent corrosion. Source: Internet
Chlorinated compounds used to remove oil from metals, such as automotive brake cleaners, are converted to phosgene by the UV rays of arc welding processes. citation Phosgene may also be produced during testing for leaks of older-style refrigerant gases. Source: Internet
Constant voltage power supplies hold the voltage constant and vary the current, and as a result, are most often used for automated welding processes such as gas metal arc welding, flux cored arc welding, and submerged arc welding. Source: Internet
Consumable electrode processes such as shielded metal arc welding and gas metal arc welding generally use direct current, but the electrode can be charged either positively or negatively. Source: Internet
Helium's other industrial uses—as a pressurizing and purge gas, as a protective atmosphere for arc welding and in processes such as growing crystals to make silicon wafers —account for half of the gas produced. Source: Internet