Process for the manufacturing of a perforated tube for an expans

Details Process for the manufacturing of a perforated tube for an expans Process for the manufacturing of a perforated tube for an expans

1990-06-13

1992-09-29

Aftergut, Jeff H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156173, 156175, 156189, 156190, 156252, B65H 8100, B31C 1300

Patent

active

051511444

ABSTRACT:
Process for the manufacture of a tube for an expansion shaft. A plurality of fiber strata, each consisting essentially of long continuous fibers, and at least one layer of honeycomb material, the fiber strata and the layer(s) of honeycomb material being in alternating sequence forming are a sandwich compound, are applied to a mandrel having moldings or projections thereon. The fiber strata are applied so that few if any fibers are severed by the moldings. The tube has apertures, which are formed by the moldings. In order that the necessary openings do not weaken the structure of the carbon fibers, they are placed around the moldings forming the apertures and afterwards the sandwich compound is saturated with epoxy. The remarkable feature of the tube is the extremely light weight and the resulting advantages especially with regard to its handling.

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