Arc welding is a process utilizing the concentrated heat of an electric arc to join metal by fusion of the parent metal and the addition of metal to joint usually provided by a consumable electrode. Either direct or alternating current may be used for the arc, depending upon the material to be welded and the electrode used.
The various forms of arc welding can be reviewed here:
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Electroslag Welding Fluxed-Core Arc-Welding Gas Metal-Arc Welding |
Plasma Arc Welding Shielded-Metal Arc Welding Submerged Arc Welding |
| Gas Tungsten-Arc Welding | |
