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Automatic Control Of Length Of Welding ArcNonlinear relationships among current, voltage, and length stored in electronic memory. Conceptual microprocessor-based control subsystem maintains constant length of welding arc in gas/tungsten arc-welding system, even when welding current varied. Uses feedback of current and voltage from welding arc. Directs motor to set position of torch according to previously measured relationships among current, voltage, and length of arc. Signal paths marked "calibration" or "welding" used during those processes only. Other signal paths used during both processes. Control subsystem added to existing manual or automatic welding system equipped with automatic voltage control.
Document ID
19910000610
Document Type
Other - NASA Tech Brief
Authors
Iceland, William F. (Rockwell International Corp.)
Date Acquired
August 14, 2013
Publication Date
November 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 11
ISSN: 0145-319X
Subject Category
FABRICATION TECHNOLOGY
Report/Patent Number
MSC-21473
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.