Method for mass producing composite shafts

Details Method for mass producing composite shafts Method for mass producing composite shafts

1979-08-06

1981-09-15

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156172, 156173, 156187, 156188, B65H 8100

Patent

active

042895570

ABSTRACT:
A method for joining a composite material shaft, such as a graphite epoxy or fiber glass driveshaft, to a metal end member is disclosed, wherein said joint is capable of withstanding large ranges of temperature and humidity, can handle high torque and has high resistance to fatigue. The design of parallel grooves on the end of a metallic sleeve concentrically aligned within the shaft is amenable to mass production. The first layer of fibers of the composite material shaft is preferably wound perpendicular to the orientation of the grooves. On the other end of the metallic sleeve is carved a scalloped pattern which facilitates concentric alignment of the sleeve on the tooling mandrel and helps to reduce shear stress between the sleeve and shaft. A method for mass production of shafts with metallic end joints attached employs an elongated spinning mandrel and pre-preg tape wound at high speed.

REFERENCES:
patent: 3105786 (1963-10-01), Anderson
patent: 3629028 (1971-12-01), McLarty et al.
patent: 3661670 (1972-05-01), Pierpont
patent: 3697346 (1972-10-01), Van Dorn et al.
patent: 3844730 (1974-10-01), Laussermair
patent: 3881973 (1975-05-01), Pinckney
patent: 4009066 (1977-02-01), Lachenmayer
patent: 4089190 (1978-05-01), Worgan et al.

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