Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1979-05-17
1980-07-29
Withyshyn, Michael G.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
138141, 156188, 156215, 156313, 273DIG7, 273DIG23, 428 36, 428302, 428902, B65H 8106, F16L 914, F16L 916
Patent
active
042149320
ABSTRACT:
A tubular composite structure for transmitting forces comprises a metal tubular core, preferably of aluminum, having a layer of structural metal adhesive on the exterior surface of the core. On top of the structural adhesive layer are alternating laminae of resin impregnated unidirectional reinforcing fibers, particularly carbon or graphite fibers, and of woven fiberglass, beginning with a layer of woven fiberglass followed by a lamina of resin impregnated continuous unidirectional reinforcing fibers and continuing in alternating fashion but ending with a final layer of resin impregnated continuous unidirectional reinforcing fibers, each successive layer of resin impregnated continuous unidirectional fibers having the fibers oriented at an angle of between about 5.degree. to 12.degree. with respect to the longitudinal axis of the metal tube and in opposite orientation with respect to the next preceding layer. The fibers in the woven fiberglass layer are oriented at 0.degree. and 90.degree. with respect to the longitudinal axis of the metal tubular core. Preferably the unidirectional continuous reinforcing fibers are carbon fibers and particularly graphite fibers having a Youngs modulus of elasticity of about 30 .times. 10.sup.6 to about 50 .times.10.sup.6 psi and a tensile strength of about 300,000 to about 400,000 psi.
REFERENCES:
patent: 3166319 (1965-01-01), Brilhart
patent: 3457962 (1969-07-01), Shobert
patent: 3646610 (1972-02-01), Jackson
patent: 3666598 (1972-05-01), Christie et al.
patent: 4039006 (1977-08-01), Inoue et al.
Dvorak Joseph J.
Exxon Research & Engineering Co.
Withyshyn Michael G.
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