Spot-welding meaning

Welding of overlapping pieces of metal at small points by application of great pressure and electric current.
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A welding process in which overlapping metal pieces are held under great pressure between two electrodes, between which a brief, powerful current is passed, effecting the weld.
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Present participle of spot weld.
verb
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The resistance-welding of overlapping pieces of metal by applying pressure and an electric current at small points.
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