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Resistance welding graphite-fiber compositesHigh-strength joints are welded in seconds in carbon-reinfored thermoplastic beams. Resistance-welding electrode applies heat and pressure to joint and is spring-loaded to follow softening material to maintain contact; it also holds parts together for cooling and hardening. Both transverse and longitudinal configurations can be welded. Adhesive bonding and encapsulation are more time consuming methods and introduce additional material into joint, while ultrasonic heating can damage graphite fibers in composite.
Document ID
19800000264
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Lamoureux, R. T.
(McDonnell Douglas Corp.)
Date Acquired
August 10, 2013
Publication Date
September 1, 1980
Publication Information
Publication: NASA Tech Briefs
Volume: 5
Issue: 2
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
MSC-18534
Accession Number
80B10264
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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