Hutchinson

Conseil Et Technique

Hutchinson, Sa

Bertrand Florentz

Jean-Pierre Ciolczyk

Guy Valembois

Marc Dolez

Nicolas-Jean Fischer

Laurent Coldre

Sylvain Baratin

Camille Compigne

Cristina Gonzalez Bayon

Stéphane Bergere

Michaël Godon

Cristina Gonzalez-Bayon

David Blanchard Gomes

Stephane Bergere

Sébastien Popineau

A method for manufacturing a part made from composite material of a thermoplastic or thermosetting matrix reinforced with fibers includes producing a structure of fibers, that is optionally pre-impregnated. The method further includes aligning and juxtaposing fibers, while stretching them between return elements, and keeping them separated from each other, so as to obtain a first layer. The method includes superimposing, on said first layer, a second layer obtained in an identical manner to the first, in which the fibers are parallel to those of the first layer and kept apart from it. The method includes repeating the superimposing operation until the desired thickness is obtained and stiffening the material making up the matrix (M) by a method that suits its nature.

Method for manufacturing a part made from composite material

The method for warning of risk of rupture or deformation of a part made of a composite material when it is subjected to a force relates to a part including a fibre-reinforced thermoplastic or thermohardenable matrix. The method includes arranging the fibers in a lattice structure produced by winding fibers to form bars that join together or intersect at nodes. The method includes designing at least one bar of the lattice and/or integrating, into the part, at least one additional bar with a determined location and tensile strength and associating, with the at least one bar, inside the part, a sensor to detect the rupture thereof. The method further includes associating, with the sensor, an emitter, outside the part, for a signal relating to the rupture.

Method for warning of risk of rupture or deformation of a part made of a composite material, and part produced

A link arm for connecting a first unsuspended mass to a second suspended mass, and its manufacturing method are provided. In some embodiment the arm applies in particular to a suspension system for a motor vehicle, wherein the arm is able to equip a wheel suspension by having triangular housings to receive a stub axle of the wheel and two connecting links to the chassis of the vehicle. In some embodiments, the arm comprises housings to receive a first linkage joint to the first mass, and at least a second linkage joint to the second mass, and comprises:

Linking arm, for example for a vehicle wheel suspension, and method for manufacturing same

A connection device is suitable for connecting two tubes to one another, and optionally to a fluid tank for fluid transmission piping of an aircraft or a spacecraft Also disclosed are pipes incorporating said tubes and said device; and a method for manufacturing said device. The device includes an injection-molded tip that has at least one angled or inwardly curved area and is made of a composite material with a thermoplastic matrix reinforced by a reinforcement system including carbon fibers. The tip has a median longitudinal mold parting plane (P). The carbon fibers extend so as to be oriented along the tip, which incorporates mechanical and vibratory stiffening means which are integrally molded with the tip and lie in said parting plane or symmetrically relative to said plane in said at least one area and/or immediately near said area.

Connection device, pipes incorporating same for fluid transmission piping of an aircraft or a spacecraft, and method for manufacturing said device

A connecting rod comprises a convex elongated body around a longitudinal axis of symmetry and two connecting ends for connecting to adjacent structures. The connecting rod includes two shells with two longitudinal edges that are assembled in these edges and that each have a base of at least one shell web including continuous shell fibers primarily parallel to this axis of symmetry and impregnated with a thermoplastic shell matrix. The connecting rod incorporates at least one assembly web wound around and along the shells, and assembly fibers primarily inclined relative to the axis and impregnated with a thermoplastic assembly matrix remelted in contact with the shell matrix.

Composite connecting rod, method for manufacturing such a rod and aeronautic ceiling or floor structure incorporating same

A ducting and associated method is provide in which the ducting includes a pipe with a thermoplastic or thermoplastic elastomeric layer and a reinforcing layer. The pipe has a curved or bent geometry and the reinforcing layer is made of a composite material based on reinforcement in intimate and direct contact with the subjacent layer. The geometry is obtained by hot forming the inner layer to give the geometry, and the reinforcement is either impregnated with a thermosetting matrix to form a thermosetting composite, or reinforcing fibers are intermixed with thermoplastic fibers or powders, or impregnated with a plastic polymeric coating that is curable chemically. Alternatively, the inner layer is first covered with the reinforcing layer in which the reinforcement includes reinforcing fibers intermixed with a thermoplastic material in the form of fibers, film or powder is blow-molded to give the pipe its final geometry.

Ducting for a fluid transfer pipeline for an aircraft or spacecraft, method for producing same and aeronautical structure incorporating same

The present invention relates to a ducting for a fluid transfer pipeline for an aircraft or spacecraft, an aeronautical structure incorporating it and a method for producing this ducting. The ducting () comprises a pipe () with a thermoplastic or thermoplastic elastomeric layer () and a reinforcing layer () surmounting it. The pipe has a curved and/or bent geometry and the reinforcing layer is made of a composite material based on reinforcing means () that are in intimate and direct contact with the subjacent layer, such as the inner layer, said geometry being obtained by one or other of the following two methods (a) and (b):

Hatch system () for a motor craft, in particular for an automobile vehicle, for example, the hatch () being mounted articulated about a substantially horizontal fixed main rotation axis (A) supported by the chassis of the motor craft, and being movable about the main rotation axis (A) manually or automatically by drive means () between a closed position and an open position, characterized in that, during a phase of movement of the hatch (), the drive means () driving rotation of the hatch () about the main rotation axis (A) actuate means () for maneuvering the hatch () in rotation in the opposite direction about a secondary rotation axis (B), the combination of these two movements in rotation causing the hatch () to move in a substantially vertical plane without necessarily causing lateral movement of the hatch during this phase of movement of the hatch ().

Hatch system for a motor craft, in particular for an automobile vehicle

A sealing gasket for mounting around a motor vehicle door presenting at least one corner of small radius of curvature, the gasket being mounted directly on its support without being subjected to any specific localized treatment operation in a support corner of small radius of curvature, and comprising at least a flexible or semi-rigid fixing portion fixed by adhesive to its support and an elastically-deformable tubular portion for providing sealing, wherein the elastically-deformable portion of the gasket is given a shape extending from its fixing portion that is generally triangular, being defined by two lateral pillars which between them form an angle of about 10&#xb0; to 80&#xb0;, and which are united by an arch, said angle being defined using two straight lines passing substantially through the middles of the two lateral pillars at &#x2156;ths and at &#x2158;ths of the total height of the gasket measured from its fixing portion.

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Paucourt, France

Bertrand Florentz