Method for producing a monoblock composite connecting rod by placing preimpregnated fibers on an extractable mandrel and connecting rod obtained thereby

A monoblock connecting rod produced by the process of placing preimpregnated fibers on an extractable mandrel, comprising, as successive steps:

• embodying on a rigid central shaft the mandrel having a longitudinal axis and a shape corresponding to that of the connecting rod;
• placing the preimpregnated fibers on the mandrel by at least one of winding and laying down the preimpregnated fibers according to a predetermined number of layers and inclination of the fibers with respect to the longitudinal axis of the mandrel to obtain a preimpregnated fiber/mandrel unit including an outer surface;
• polymerizing the unit while applying a homogeneous compacting pressure to the entire outer surface of the unit;
• and
• removing the mandrel and machining the polymerized preimpregnated fibers to required dimensions of the connecting rod.

A monoblock connecting rod comprising:

• a body of composite material having a longitudinal axis, said body of composite material including fibers placed by successive layers oriented with respect to a longitudinal axis of the monoblock connecting rod along various angles between and including at least one of 0° and 90°;
• a tubular running portion;
• two fixing end portions;
• and
• tubular transition portions between said running portion and said two fixing end portions.