: a machine that creates arcs for arc welding
For instance, you can use an arc welder and welding rod to build up a worn surface, such as a crankshaft journal. Richard Finch, Welder's Handbook, 2007
: a person whose job is arc welding
Following recovery the patient was anxious to return to work as an arc welder. Leslie A. Geddes, Medical Device Accidents and Illustrative Cases, 2002
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