Rapid adhesive bonding of advanced composites and titaniumRapid adhesive bonding (RAB) concepts utilize a toroid induction technique to heat the adhesive bond line directly. This technique was used to bond titanium overlap shear specimens with 3 advanced thermoplastic adhesives and APC-2 (graphite/PEEK) composites with PEEK film. Bond strengths equivalent to standard heated-platen press bonds were produced with large reductions in process time. RAB produced very strong bonds in APC-2 adherend specimens; the APC-2 adherends were highly resistant to delamination. Thermal cycling did not significantly affect the shear strengths of RAB titanium bonds with polyimide adhesives. A simple ultrasonic non-destructive evaluation process was found promising for evaluating bond quality.
Document ID
19850048255
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Stein, B. A. (NASA Langley Research Center Hampton, VA, United States)
Tyeryart, J. R. (NASA Langley Research Center Hampton, VA, United States)
Hodgest, W. T. (NASA Langley Research Center Polymenic Materials Branch; U.S. Army, Structures Laboratory, Hampton, VA, United States)