NASA NTRS · 19740000214
Side wire feed for welding apparatus
Abstract
Coaxial electrode arrangement has solid central electrode, insulated outer electrode, and transverse channel for feeding wire through tip of electrode assembly. Polymeric insulation is thrust aside by pressure, which is provided by separately operated mechanism acting through central electrode.
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Arnett, J. C.. 1974-11-01. Side wire feed for welding apparatus. https://ntrs.nasa.gov/citations/19740000214
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