Abstract: A method for producing a transmission shaft (1) comprising a body (2) made from composite and a coupling piece (3) at one end of the body (2), said coupling piece (3) being hollow and having splines (4) on the inner surface thereof, the base (6) of the splines (4) delimiting the perimeter of a circle of diameter D2 and the head (5) of the splines (4) delimiting the perimeter of a circle of diameter D1, characterized in that said method comprises the successive steps of: —providing a mandrel (10) having an expandable part (12) and a non-expandable part (11); —producing the body (2) by winding pre-impregnated fibre filaments around the mandrel (10); —positioning the coupling piece (3) around the body (2) on the expandable part (12) of the mandrel; —expansion of the expandable part (12) of the mandrel (10) in order to fill the base (6) of the splines (4) with the impregnated fibres of the body (2); —curing the body (2) provided with the coupling piece (3).

Abstract: The present invention relates to a method for manufacturing a connecting rod including: a) manufacturing an inner body; b) adding one end of the inner body to the end of the reduced outer diameter of each end piece, said end of the inner body resting on the shoulder of the end piece; c) inserting a first portion of a second mandrel in the hollow cylindrical portion of each end piece and placing a driving bit at the free end of a second portion of the second mandrel; d) winding said pre-impregnated fibres onto the outer surface of an assembly consisting of the inner body, the end piece(s) and the second part(s) of the second mandrel(s) which are free of bits, said fibres then forming an outer body; e) after removing the bit(s), polymerising the inner body and the outer body to form a polymerised integral body; f) removing the second mandrel(s) and cutting the polymerised integral body to the required length.

Abstract: The invention relates to a method for producing a transmission shaft (1) comprising a body (2) made from composite and a coupling piece (3) at one end of the body (2), said coupling piece (3) being hollow and having splines (4) on the inner surface thereof, the base (6) of the splines (4) delimiting the perimeter of a circle of diameter D2 and the head (5) of the splines (4) delimiting the perimeter of a circle of diameter D1, characterized in that said method comprises the successive steps of:—providing a mandrel (10) having an expandable part (12) and a non-expandable part (11);—producing the body (2) by winding pre-impregnated fibre filaments around the mandrel (10);—positioning the coupling piece (3) around the body (2) on the expandable part (12) of the mandrel;—expansion of the expandable part (12) of the mandrel (10) in order to fill the base (6) of the splines (4) with the impregnated fibres of the body (2);—curing the body (2) provided with the coupling piece (3).

Abstract: The present invention relates to a method of manufacturing a connecting rod (1) by filament winding, said method comprising in particular: creating an internal body (5) by manufacturing a first component (6) by winding pre-impregnated fibers (17) around a mandrel (8) and removing the mandrel; manufacturing a second part (7); providing a shoulder (12) in the second part (7); assembling the first component with the second component (7, 22); creating an external body (14) by winding pre-impregnated fibers (17), identical to those used in the manufacture of the first component (6), around said internal body (5); creating a one-piece body (18) by polymerizing the assembly formed of the internal body and of the external body; and machining a fastening (19) at one end of the one-piece body; wherein the one-piece body (18) and the first fastening element (19) are made up of a one and same composite material.

Abstract: The present invention relates to a method of manufacturing a connecting rod (1) by filament winding, said method comprising in particular:—creating an internal body (5) by manufacturing a first component (6) by winding pre-impregnated fibres (17) around a mandrel (8) and removing the mandrel;—assembling the first component with a second component (7, 22);—creating an external body (14) by winding pre-impregnated fibres (17), identical to those used in the manufacture of the first component (6), around said internal body (5);—creating a one-piece body (18) by polymerizing the assembly formed of the internal body and of the external body; and—machining a fastening (19) at one end of the one-piece body.

Abstract: The present invention relates to a method for manufacturing a connecting rod including: a) manufacturing an inner body; b) adding one end of the inner body to the end of the reduced outer diameter of each end piece, said end of the inner body resting on the shoulder of the end piece; c) inserting a first portion of a second mandrel in the hollow cylindrical portion of each end piece and placing a driving bit at the free end of a second portion of the second mandrel; d) winding said pre-impregnated fibres onto the outer surface of an assembly consisting of the inner body, the end piece(s) and the second part(s) of the second mandrel(s) which are free of bits, said fibres then forming an outer body; e) after removing the bit(s), polymerising the inner body and the outer body to form a polymerised integral body; f) removing the second mandrel(s) and cutting the polymerised integral body to the required length.

Abstract: The present invention relates to a method for manufacturing a connecting rod including: a) manufacturing an inner body; b) adding one end of the inner body to the end of the reduced outer diameter of each end piece, said end of the inner body resting on the shoulder of the end piece; (c) inserting a first portion of a second mandrel in the hollow cylindrical portion of each end piece and placing a driving bit at the free end of a second portion of the second mandrel; d) winding said pre-impregnated fibers onto the outer surface of an assembly consisting of the inner body, the end piece(s) and the second part(s) of the second mandrel(s) which are free of bits, said fibers then forming an outer body; e) after removing the bit(s), polymerizing the inner body and the outer body to form a polymerized integral body; f) removing the second mandrel(s) and cutting the polymerized integral body to the required length.

Abstract: The present invention relates to a method for manufacturing a connecting rod including: a) manufacturing an inner body; b) adding one end of the inner body to the end of the reduced outer diameter of each end piece, said end of the inner body resting on the shoulder of the end piece; (c) inserting a first portion of a second mandrel in the hollow cylindrical portion of each end piece and placing a driving bit at the free end of a second portion of the second mandrel; d) winding said pre-impregnated fibres onto the outer surface of an assembly consisting of the inner body, the end piece(s) and the second part(s) of the second mandrel(s) which are free of bits, said fibres then forming an outer body; e) after removing the bit(s), polymerising the inner body and the outer body to form a polymerised integral body; f) removing the second mandrel(s) and cutting the polymerised integral body to the required length.