NASA NTRS · 19660000511
Opposed arcs permit deep weld penetration with only one pass
Abstract
Arc welding technique uses opposed electrodes on either side of the workpiece, operated in right angles, out-of-phase, pulsating direct current. complete penetration has been obtained with this technique in metals ranging from 0.062 to 1.0 inch thickness.
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Budds, L. E.. 1966-11-01. Opposed arcs permit deep weld penetration with only one pass. https://ntrs.nasa.gov/citations/19660000511
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