NASA NTRS · 19920000127
Long-Lived Electrode For Arc Welding In Vacuum
Abstract
Improved electrode for gas/tungsten arc welding in vacuum essentially hollow cylinder along which inert gas flows. Interior of cylinder provides large surface area for emission of electrons to form welding arc. Flow of pressurized inert gas inhibits vaporization of hot electrode material. Both features combine to reduce erosion of electrode. Electrode lasts considerably longer in vacuum than conventional electrode.
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Weeks, Jack L., Poorman, Richard M.. 1992-02-01. Long-Lived Electrode For Arc Welding In Vacuum. https://ntrs.nasa.gov/citations/19920000127
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