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Long-Lived Electrode For Arc Welding In VacuumImproved 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.
Document ID
19920000127
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Weeks, Jack L.
(Rockwell International Corp.)
Poorman, Richard M.
(Rockwell International Corp.)
Date Acquired
August 15, 2013
Publication Date
February 1, 1992
Publication Information
Publication: NASA Tech Briefs
Volume: 16
Issue: 2
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
MFS-29766
Accession Number
92B10127
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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