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Reed Valve Regulates Welding Back-Purge PressureSimple modification yields welds of better quality. Reed valve halves fluctuations in pressure in back-purge chamber attached to workpiece undergoing keyhole plasma arc welding. Identical to one used in fuel system of two-cycle gasoline engine. Backbead smoother, and weld penetrates more uniformly.
Document ID
19910000347
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Coby, J. Ben, Jr. (Rockwell International Corp.)
Weeks, Jack L. (Rockwell International Corp.)
Date Acquired
August 14, 2013
Publication Date
July 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 7
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
MFS-29684
Accession Number
91B10347
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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