The method of manufacturing a dog-leg shaped ply of composite material and the tool used in the carrying out of the method.

摘要

The method of fabricating selectively shaped dog-leg plies (68) of composite material comprising unidirectionally extending high tensile strength fibers of filaments extending for the full length of the ply and embedded in a resin matrix comprises winding high tensile strength filament onto a mandrel (28) of generally cylindrical shape but having circumferentially extending frustroconical projections (34, 36, 38) extending radially therefrom so that the filament (52) wound onto the cylindrical portion (30) of the mandrel (28) forms the straight legs (62, 64) of the dog-leg ply (68) and so that the filament wound on the frustroconical projection (36) of the mandrel (28) form the arcuate central portion (60) of the dog-leg ply (68). <IMAGE> <IMAGE>