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Variable-Polarity Plasma Arc Welding Of Alloy 2219Report presents results of study of variable-polarity plasma arc (VPPA) welding of aluminum alloy 2219. Consists of two parts: Examination of effects of microsegregation and transient weld stress on macrosegregation in weld pool and, electrical characterization of straight- and reverse-polarity portions of arc cycle.
Document ID
19890000488
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Walsh, Daniel W.
(California Polytechnic State Univ.)
Nunes, Arthur C., Jr.
(NASA Marshall Space Flight Center, Huntsville, AL.)
Date Acquired
August 14, 2013
Publication Date
September 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 9
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
MFS-27223
Accession Number
89B10488
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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