EP2262635A2 - Method for producing a planar multi-axial composite product and resulting product - Google Patents

Method for producing a planar multi-axial composite product and resulting product

Info

Publication number
EP2262635A2
EP2262635A2 EP09723074A EP09723074A EP2262635A2 EP 2262635 A2 EP2262635 A2 EP 2262635A2 EP 09723074 A EP09723074 A EP 09723074A EP 09723074 A EP09723074 A EP 09723074A EP 2262635 A2 EP2262635 A2 EP 2262635A2
Authority
EP
European Patent Office
Prior art keywords
layer
layers
mattress
longitudinal direction
angle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09723074A
Other languages
German (de)
French (fr)
Inventor
Gilles Duqueine
Jérôme Aubry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airbus SAS
Original Assignee
Airbus SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Airbus SAS filed Critical Airbus SAS
Publication of EP2262635A2 publication Critical patent/EP2262635A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
    • B29C70/202—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres arranged in parallel planes or structures of fibres crossing at substantial angles, e.g. cross-moulding compound [XMC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
    • Y10T428/24074—Strand or strand-portions
    • Y10T428/24116—Oblique to direction of web

Definitions

  • the present invention relates to a semifinished composite product and method for making this semi finished composite product.
  • composite part or by composite material is meant a part or a material composed of a reinforcement generally of woven or non-woven fibers and a material (thermosetting or thermoplastic resin) which ensures the cohesion of the structure and the transmission of the forces towards the reinforcement.
  • a material thermosetting or thermoplastic resin
  • the method of implementing prepregs consists in positioning a set of webs composed of unidirectional fibers or woven webs.
  • unidirectional webs or fabrics are stacked and are polymerized under pressure.
  • the part can be indifferently unidirectional sheets pre-impregnated or woven fabrics pre-impregnated.
  • a pre-impregnated fabric usually a 2/2 twill which can deform within certain limits.
  • a draping of unidirectional layers can be envisaged; it is then necessary to have successively several layers of large amount of juxtaposed tablecloths of small width.
  • This method is however not fully adapted to the production of complex parts since the base element is a flat sheet so unlikely to fit shapes of complex geometry.
  • the manufacturing cycle times of this type of parts can be relatively long. This process is therefore poorly suited to the manufacture of parts at an industrial rate.
  • the RTM (Resin Transfer Molding) process is a pressure molding process in which a dry fiber preform (glass, carbon, aramid) is placed in a mold and then a resin, optionally combined with filler pigments, is injected into the mold. mold. Once the resin has polymerized, the mold can be opened and the workpiece can be removed. This process has the advantage of producing parts that have two finished faces.
  • This method provides for dry draping reinforcing folds of a mold and, after sealing with a sealed film, the resin is transferred into the reinforcing plies between a distribution network and one or more suction points.
  • an object of the invention is to provide a process for producing composite semi-finished products that can be used in the manufacture of structural parts having complex geometries.
  • the invention relates to a method of manufacturing a planar multi axial composite product, which comprises in particular the steps of:
  • a first layer comprising layers juxtaposed with unidirectional reinforcing fibers pre-impregnated with resin, the plies of the first layer having a first angle with respect to the longitudinal direction of the mattress, drape on the first layer, at least one second layer comprising unidirectional layers of juxtaposed resin pre-impregnated reinforcing fibers, the plies of the second layer having a second angle with respect to the longitudinal direction of the mattress, (b) exert a compacting on at least two layers,
  • the invention thus proposes to manufacture a composite product according to a process that can be largely automated; an essential point of the semi-finished product obtained by the process according to the invention is its capacity of deformability which results from its multi-layer structure inside which sliding between and inside the layers are possible. This capacity can be implemented for the production of complex shaped parts, for example having evolutionary curves and / or curves with double curvature. It is pointed out that the composite product according to the invention can be manufactured in an automated manner at a first place to then be transported to a second location possibly remote from the first to be implemented in a process in which the composite product is deformed.
  • the step (a) of forming the mattress comprises the step of:
  • a third layer comprising unidirectional layers of juxtaposed resin pre-impregnated reinforcing fibers, said layers having a third angle with respect to the longitudinal direction of the mattress.
  • the semi finished product obtained is thus a tri-layer product.
  • the implementation of the method according to the invention provides that the draping of the first layer is carried out with an angular orientation of between 10 ° and 90 ° with respect to the longitudinal direction of the mattress.
  • the draping of the second layer is performed with an angular orientation equal to 90 ° with respect to the longitudinal direction of the mattress.
  • the draping of the third layer is carried out with an angular orientation of between -10 ° and -90 ° with respect to the longitudinal direction of the mattress.
  • the method can provide the steps of draping an even number of layers disposed on either side of a central plane separating the mattress in two, the two layers of the same rank with respect to said plane being oriented at opposite angles.
  • opposite angles are meant angles whose absolute values are identical but whose orientations are opposite to the longitudinal direction of the mattress.
  • a layer having an orientation of + 30 ° and a layer having an orientation of -30 ° in the sense of the present document means that the first layer forms an angle of + 30 ° with respect to the longitudinal direction of the mattress and that the second layer forms an angle of -30 ° or + 150 ° with respect to the longitudinal direction of the mattress.
  • the method comprises the steps of draping an even number of layers distributed on either side of a central layer oriented at 90 ° with respect to the longitudinal direction of the mattress, the two layers of a same rank relative to the central layer being oriented at opposite angles.
  • pre-impregnated unidirectional reinforcing fiber layers are draped over a support which moves continuously in the longitudinal direction of the mattress.
  • the method can provide for the formation of a mattress whose width is of the order of 2000 mm.
  • the invention relates to a device which comprises in particular a conveyor having a continuously moving bearing surface and at least two sheet supply equipment oriented relative to the conveyor respectively at the first angle and the second angle. .
  • the device comprises a third third-angle-fed web supply equipment.
  • the device has means for cutting the mattress into a multi-layer product.
  • the invention relates to a multi-axial semi-finished composite product obtained by the method described above. comprising at least two superposed layers of preimpregnated unidirectional reinforcing fibers oriented respectively at angles of between 10 ° and 90 °.
  • the product according to the invention is therefore devoid of plies oriented at 0 ° that is to say is devoid of plies oriented in its longitudinal direction. This provision is important for the ability of the product to deform because it is thus possible to deform to make him marry a left shape using the ability to slip between them sheets and unidirectional fibers and exerting deformation preferably in a direction perpendicular to the longitudinal direction of the product.
  • the multi-axial multi-finished composite product according to the invention is devoid of fibers arranged in its longitudinal direction which could oppose its harmonious deformation when it is used in the manufacture of a complex part, in particular curvilinear or with double curves. . Thus after deformation, the fiber content remains large and homogeneous in all parts of the product.
  • the multi-axial semi-finished composite product comprises an even number of layers disposed on either side of a plane separating the layers in two, the two layers of the same rank with respect to said plane being oriented according to opposite angles.
  • the multi-axial semi-finished composite product comprises an even number of layers distributed on either side of a central layer oriented at 90 ° with respect to the longitudinal direction of the product, the two layers of the same rank relative to the central layer being oriented at opposite angles.
  • the semi-finished composite product comprises a superposition of:
  • a first layer comprising unidirectional layers of juxtaposed pre-impregnated reinforcing fiber fibers, said layers having a first angle with respect to the longitudinal direction of the product,
  • a second layer comprising unidirectional layers of juxtaposed resin pre-impregnated reinforcing fibers, said layers having a second angle with respect to the longitudinal direction of the product,
  • a third layer comprising unidirectional layers of juxtaposed pre-impregnated resin reinforcement fibers, said layers having a third angle with respect to the longitudinal direction of the mattress.
  • the first layer is oriented at an angle of between 10 ° and 90 ° with respect to the longitudinal direction of the product, that the second layer is oriented at an angle equal to 90 ° to the direction longitudinally of the product, that the third layer is oriented at an angle opposite the angle of the first layer between -10 ° and -90 ° with respect to the longitudinal direction of the product.
  • the unidirectional fibers that come into the composition of the product according to the invention are pre-impregnated carbon fibers in a thermosetting or thermoplastic resin, which allows the semi-finished product after a subsequent phase to be used as a piece of structure especially in aeronautical applications.
  • Figure 1 is a schematic view showing an embodiment of the method
  • Figure 2 is a plan view of the composite product during manufacture
  • Figure 3 is a schematic view showing a second embodiment of the method.
  • Figure 1 shows schematically a device for implementing the method according to the invention.
  • This device comprises, therefore, a belt conveyor 2 and three equipment 3, 4, 5 for unrolling webs 7, 8, 9 of unidirectional fibers reinforcement prepreg.
  • This equipment 3, 4, 5 allowing the unfolding of the plies 7, 8, 9 of unidirectional reinforcing fibers are oriented precisely with respect to the conveyor 2.
  • these unwinding equipment 3, 4, 5 are in number of three and are respectively oriented by + 30 °, 90 °, and -30 ° with respect to the direction of movement of the conveyor 2.
  • the equipment 3, 4, 5 unwinding may be reels or other systems for delivering a band.
  • the equipment 3, 4, 5 unwinding can include servo electric motors for the unwinding of a given length of webs.
  • a first layer 10 of unidirectional layers of reinforcement fibers pre-impregnated with resin is deposited on the conveyor 2.
  • this first layer 10 is oriented at an angle of 30 °. relative to the direction of travel of the conveyor.
  • the direction of movement of the conveyor will constitute the longitudinal direction of a mattress 13 which will be obtained by stacking successive layers of unidirectional layers of preimpregnated reinforcing fibers.
  • plies of the first layer 10 are juxtaposed at an angle of 30 ° relative to the direction of movement of the conveyor 2.
  • Each ply 7, 8, 9 of pre-impregnated unidirectional reinforcing fibers is cut to the width of the conveyor which will form the width of the mattress 13 obtained by the method according to the invention.
  • webs 8 of unidirectional reinforcing fibers are juxtaposed to form the second layer 11 of the mattress. These plies 8 are cut to the width of the conveyor.
  • a third station unidirectional plies of preimpregnated reinforcing fibers which is located downstream of the previous station, is oriented at an angle of -30 ° relative to the direction of movement of the conveyor.
  • a third layer 12 of plies 9 of preimpregnated unidirectional fibers is formed by juxtaposition of unidirectional layers of fibers.
  • a compacting step of the mattress formed of the three layers thus defined is provided downstream of the unwinding stations.
  • This compaction step may be performed by passing the mat between two rolls with possibly heating thereof.
  • the compaction step can also be performed by evacuating the table with optionally a passage in an oven at a temperature between 20 0 C and 70 0 C.
  • the mattress 13 formed of these three layers is then, according to the invention, cut into products 1 units of width may be equal to 150 millimeters and length may be equal to the length of the table that is to say up to at 10 m.
  • the elements thus formed are thus three-layer elements incorporating triaxially oriented fibers.
  • This composite planar multi axial element can then be used and be deformed into left-handed shapes to be implemented in elements of U, Z, C, omega reinforcement type which, moreover, have a non-rectilinear curve.
  • FIG. 3 illustrates this implementation of the invention in which two layers of layers are superimposed; in the example illustrated, the pre-impregnated unidirectional fiber plies of the first layer form an angle of 30 ° with the longitudinal direction of the product while the unidirectional fiber plies pre-impregnated with the second layer form an angle of -30 ° with the longitudinal direction of the product.
  • the invention can be implemented with a number of layers equal to 2, 4, 6, 8 etc. arranged on each side of a central layer oriented at 90 ° with respect to the longitudinal direction of the mat thus formed (in the case of a mat comprising an odd number of layers) or arranged on either side of a plane of symmetry (in the case of a mattress comprising an even number of layers without a central layer), knowing that inside a pair of layers of the same rank with respect to the central layer or with respect to the plane of symmetry, the layers of these layers are oriented at opposite angles. It is also conceivable that one or more layers other than the central layer is itself oriented 90 ° with respect to the longitudinal direction of the product.

Abstract

The invention relates to a method for producing a planar multi-axial composite product, including the following steps: (a) forming a multi-layer mat (13) having a longitudinal direction and a transverse direction, said step including at least a step in which a first layer comprising juxtaposed, resin-preimpregnated, unidirectional laps of reinforcing fibres is draped over a production supporting surface, said first layer laps forming a first angle in relation to the longitudinal direction of the mat, and a step in which at least a second layer (11, 12) comprising juxtaposed, resin-preimpregnated, unidirectional laps of reinforcing fibres is draped over the first layer (10), said second layer laps forming a second angle in relation to the longitudinal direction of the mat; (b) compacting the at least two layers, and (c) cutting the mat (13) into at least one planar multi-axial composite product having homogeneous deformation properties, particularly in terms of double curvature, enabling the production of parts with complex shapes.

Description

Procédé de fabrication d'un produit composite multi axial plan et produit obtenu par ce procédé Process for manufacturing a planar multi axial composite product and product obtained by this process
La présente invention concerne un produit composite semi fini et un procédé pour fabriquer ce produit composite semi fini.The present invention relates to a semifinished composite product and method for making this semi finished composite product.
Il existe actuellement essentiellement trois procédés principaux pour fabriquer des pièces composites et, notamment, pour fabriquer des pièces composites possédant des parties gauches ou curvilignes.Currently there are essentially three main processes for making composite parts and, in particular, for making composite parts having left or curvilinear parts.
Par pièce composite ou par matériau composite, on entend une pièce ou un matériau composé d'un renfort généralement de fibres tissées ou non tissées et d'une matière (résine thermodurcissable ou thermoplastique) qui assure la cohésion de la structure et la transmission des efforts vers le renfort. Chaque procédé possède des avantages propres et des inconvénients associés.By composite part or by composite material is meant a part or a material composed of a reinforcement generally of woven or non-woven fibers and a material (thermosetting or thermoplastic resin) which ensures the cohesion of the structure and the transmission of the forces towards the reinforcement. Each process has its own advantages and associated disadvantages.
Le procédé de mise en œuvre de pré imprégnés consiste à positionner un ensemble de nappes composées de fibres unidirectionnelles ou de nappes tissées. Dans le procédé pré imprégné, des nappes unidirectionnelles ou des tissus sont empilés et sont polymérisés sous pression.The method of implementing prepregs consists in positioning a set of webs composed of unidirectional fibers or woven webs. In the pre-impregnated process, unidirectional webs or fabrics are stacked and are polymerized under pressure.
Ce procédé permet de réaliser des pièces qui présentent un taux volumique de fibres important ; ceci est très favorable en termes de caractéristiques mécaniques des pièces ainsi obtenues. Dans le cas de pièces de forme simple, la pièce peut être indifféremment en nappes unidirectionnelles pré imprégnées ou en tissus tissées pré imprégnées.This method makes it possible to produce parts which have a high fiber volume ratio; this is very favorable in terms of the mechanical characteristics of the parts thus obtained. In the case of pieces of simple shape, the part can be indifferently unidirectional sheets pre-impregnated or woven fabrics pre-impregnated.
Dans le cas de pièces de forme complexe, on a généralement recours à un tissu pré imprégné généralement un sergé 2/2 qui peut se déformer dans certaines limites. Pour optimiser les performances mécaniques et pour diminuer les coûts et le poids des pièces, un drapage de nappes unidirectionnelles peut être envisagé ; il convient alors de disposer successivement plusieurs couches de quantité importante de nappes juxtaposées de petite largeur. Ce procédé n'est cependant pas pleinement adapté à la réalisation des pièces complexes puisque l'élément de base est une nappe plane donc peu susceptible d'épouser des formes de géométrie complexe. De plus, les temps de cycle de fabrication de ce type de pièces peuvent être relativement longs. Ce procédé est donc peu adapté à la fabrication de pièces à une cadence industrielle.In the case of complex shaped parts, it is generally used a pre-impregnated fabric usually a 2/2 twill which can deform within certain limits. To optimize the mechanical performances and to reduce the costs and the weight of the parts, a draping of unidirectional layers can be envisaged; it is then necessary to have successively several layers of large amount of juxtaposed tablecloths of small width. This method is however not fully adapted to the production of complex parts since the base element is a flat sheet so unlikely to fit shapes of complex geometry. In addition, the manufacturing cycle times of this type of parts can be relatively long. This process is therefore poorly suited to the manufacture of parts at an industrial rate.
Le procédé RTM (Resin Transfer Moulding) est un procédé de moulage sous pression dans lequel une préforme de fibres sèches (verre, carbone, aramide) est placée dans un moule puis une résine, éventuellement combinée à des pigments de charge, est injectée dans le moule. Une fois la résine polymérisée, le moule peut être ouvert et la pièce peut être retirée. Ce procédé a l'avantage de produire des pièces qui possèdent deux faces finies.The RTM (Resin Transfer Molding) process is a pressure molding process in which a dry fiber preform (glass, carbon, aramid) is placed in a mold and then a resin, optionally combined with filler pigments, is injected into the mold. mold. Once the resin has polymerized, the mold can be opened and the workpiece can be removed. This process has the advantage of producing parts that have two finished faces.
En revanche, ce procédé nécessite des moules coûteux et l'étape de réalisation de préforme est difficilement compatible avec des exigences de cadences industrielles.On the other hand, this process requires expensive molds and the preforming step is hardly compatible with industrial rate requirements.
Le procédé d'infusion de résine sous membrane souple permet de fabriquer des pièces de grandes dimensions. Ce procédé prévoit un drapage à sec de plis de renfort d'un moule puis, après étanchéification par un film étanche, la résine est transférée dans les nappes de renfort entre un réseau de distribution et un ou plusieurs points d'aspiration.The process of infusion of resin under flexible membrane makes it possible to manufacture large pieces. This method provides for dry draping reinforcing folds of a mold and, after sealing with a sealed film, the resin is transferred into the reinforcing plies between a distribution network and one or more suction points.
Ce procédé a cependant l'inconvénient de fournir des pièces qui ne présentent qu'une unique face fonctionnelle. De plus, les pièces ainsi formées peuvent présenter une mauvaise tenue au cisaillement interlaminaire. II apparaît donc que les procédés existants présentent chacun des limites d'ordre fonctionnel et/ou industriel.This method, however, has the disadvantage of providing parts that have only a single functional face. In addition, the parts thus formed may have poor resistance to interlaminar shear. It therefore appears that the existing methods each have functional and / or industrial limits.
Dans ce contexte technique, un but de l'invention est de proposer un procédé de réalisation de produits semi finis composites qui peuvent être mis en œuvre dans la fabrication de pièces de structure ayant des géométries complexes.In this technical context, an object of the invention is to provide a process for producing composite semi-finished products that can be used in the manufacture of structural parts having complex geometries.
Selon un premier aspect, l'invention concerne un procédé de fabrication d'un produit composite multi axial plan, qui comprend notamment les étapes consistant à :According to a first aspect, the invention relates to a method of manufacturing a planar multi axial composite product, which comprises in particular the steps of:
(a) former un matelas ayant une direction longitudinale et une direction transversale, multi couches comprenant au moins les étapes consistant à :(a) forming a mattress having a longitudinal direction and a multi-layer transverse direction comprising at least the steps of:
- draper sur une surface support de fabrication, une première couche comprenant des nappes juxtaposées de fibres unidirectionnelles de renfort pré imprégnées de résine, les nappes de la première couche présentant un premier angle par rapport à la direction longitudinale du matelas, - draper sur la première couche, au moins une deuxième couche comprenant des nappes unidirectionnelles de fibres de renfort pré imprégnées de résine juxtaposées, les nappes de la deuxième couche présentant un deuxième angle par rapport à la direction longitudinale du matelas, (b) exercer un compactage sur les couches au nombre d'au moins deux,drape on a manufacturing support surface, a first layer comprising layers juxtaposed with unidirectional reinforcing fibers pre-impregnated with resin, the plies of the first layer having a first angle with respect to the longitudinal direction of the mattress, drape on the first layer, at least one second layer comprising unidirectional layers of juxtaposed resin pre-impregnated reinforcing fibers, the plies of the second layer having a second angle with respect to the longitudinal direction of the mattress, (b) exert a compacting on at least two layers,
(c) découper le matelas en au moins un produit composite multi axial plan ayant des propriétés de déformabilité permettant de fabriquer des pièces de forme complexe. L'invention propose ainsi de fabriquer un produit composite selon un procédé qui peut être largement automatisé ; un point essentiel du produit semi fini obtenu par le procédé selon l'invention est sa capacité de déformabilité qui résulte de sa structure multi couche à l'intérieur de laquelle des glissements entre et à l'intérieur des nappes sont possibles. Cette capacité peut être mise en œuvre pour la réalisation de pièces de forme complexe, par exemple présentant des galbes évolutifs et/ou des galbes à double courbure. Il est précisé que le produit composite selon l'invention peut être fabriqué de manière automatisée en un premier lieu pour être ensuite transporté en un second lieu éventuellement distant du premier pour être mis en œuvre dans un procédé dans lequel le produit composite est déformé.(c) cutting the mattress into at least one planar multi axial composite product having deformability properties for manufacturing complex shaped parts. The invention thus proposes to manufacture a composite product according to a process that can be largely automated; an essential point of the semi-finished product obtained by the process according to the invention is its capacity of deformability which results from its multi-layer structure inside which sliding between and inside the layers are possible. This capacity can be implemented for the production of complex shaped parts, for example having evolutionary curves and / or curves with double curvature. It is pointed out that the composite product according to the invention can be manufactured in an automated manner at a first place to then be transported to a second location possibly remote from the first to be implemented in a process in which the composite product is deformed.
Selon une exécution avantageuse de l'invention, l'étape (a) de formation du matelas comprend l'étape consistant à :According to an advantageous embodiment of the invention, the step (a) of forming the mattress comprises the step of:
- draper sur la deuxième couche, une troisième couche comprenant des nappes unidirectionnelles de fibres de renfort pré imprégnées de résine juxtaposées, les dites couches présentant un troisième angle par rapport à la direction longitudinale du matelas.drape on the second layer, a third layer comprising unidirectional layers of juxtaposed resin pre-impregnated reinforcing fibers, said layers having a third angle with respect to the longitudinal direction of the mattress.
Le produit semi fini obtenu est ainsi un produit tri couches. La mise en œuvre du procédé selon l'invention prévoit que le drapage de la première couche est réalisé avec une orientation angulaire comprise entre 10° et 90° par rapport à la direction longitudinale du matelas.The semi finished product obtained is thus a tri-layer product. The implementation of the method according to the invention provides that the draping of the first layer is carried out with an angular orientation of between 10 ° and 90 ° with respect to the longitudinal direction of the mattress.
Le drapage de la deuxième couche est réalisé avec une orientation angulaire égale à 90° par rapport à la direction longitudinale du matelas.The draping of the second layer is performed with an angular orientation equal to 90 ° with respect to the longitudinal direction of the mattress.
Le drapage de la troisième couche est réalisé avec une orientation angulaire comprise entre -10° et -90° par rapport à la direction longitudinale du matelas. Selon une possibilité, le procédé peut prévoir les étapes de drapage d'un nombre pair de couches disposées de part et d'autre d'un plan central séparant en deux le matelas, les deux couches d'un même rang par rapport audit plan étant orientées selon des angles opposés. Par angles opposés, on entend des angles dont les valeurs absolues sont identiques mais dont les orientations sont opposées par rapport à la direction longitudinale du matelas. Ainsi à titre d'exemple, une couche ayant une orientation de +30° et une couche ayant une orientation de -30° au sens du présent document signifie que la première couche forme un angle de +30° par rapport à la direction longitudinale du matelas et que la deuxième couche forme un angle de -30° ou de +150° par rapport à la direction longitudinale du matelas.The draping of the third layer is carried out with an angular orientation of between -10 ° and -90 ° with respect to the longitudinal direction of the mattress. According to one possibility, the method can provide the steps of draping an even number of layers disposed on either side of a central plane separating the mattress in two, the two layers of the same rank with respect to said plane being oriented at opposite angles. By opposite angles are meant angles whose absolute values are identical but whose orientations are opposite to the longitudinal direction of the mattress. Thus, for example, a layer having an orientation of + 30 ° and a layer having an orientation of -30 ° in the sense of the present document means that the first layer forms an angle of + 30 ° with respect to the longitudinal direction of the mattress and that the second layer forms an angle of -30 ° or + 150 ° with respect to the longitudinal direction of the mattress.
Il peut également être envisagé des étapes de drapage d'un nombre pair de couches disposées de part et d'autre d'un plan central séparant en deux le matelas, les deux couches d'un même rang par rapport audit plan étant orientées selon des angles identiques.It can also be envisaged steps of draping an even number of layers disposed on either side of a central plane separating in two the mattress, the two layers of the same rank with respect to said plane being oriented according to identical angles.
Selon une autre possibilité, le procédé comprend les étapes de drapage d'un nombre pair de couches réparties de part et d'autre d'une couche centrale orientée à 90° par rapport à la direction longitudinale du matelas, les deux couches d'un même rang par rapport à la couche centrale étant orientées selon des angles opposés.According to another possibility, the method comprises the steps of draping an even number of layers distributed on either side of a central layer oriented at 90 ° with respect to the longitudinal direction of the mattress, the two layers of a same rank relative to the central layer being oriented at opposite angles.
Il est prévu que les nappes de fibres unidirectionnelles de renfort pré imprégnées sont drapées sur un support qui se déplace de manière continue selon la direction longitudinale du matelas.It is expected that pre-impregnated unidirectional reinforcing fiber layers are draped over a support which moves continuously in the longitudinal direction of the mattress.
De façon concrète, le procédé peut prévoir la formation d'un matelas dont la largeur est de l'ordre 2000 mm.In practice, the method can provide for the formation of a mattress whose width is of the order of 2000 mm.
Selon un deuxième aspect, l'invention concerne un dispositif qui comprend notamment un convoyeur présentant une surface d'appui se déplaçant de manière continue et au moins deux équipements de fourniture de nappe orientés par rapport au convoyeur respectivement selon le premier angle et le deuxième angle.According to a second aspect, the invention relates to a device which comprises in particular a conveyor having a continuously moving bearing surface and at least two sheet supply equipment oriented relative to the conveyor respectively at the first angle and the second angle. .
Il peut de plus être prévu que le dispositif comprenne un troisième équipement de fourniture de nappe orienté selon le troisième angle.It may further be provided that the device comprises a third third-angle-fed web supply equipment.
De plus, le dispositif présente des moyens de découpe du matelas en un produit multi couches. Selon un troisième aspect, l'invention concerne un produit composite semi fini multi axial obtenu par le procédé précédemment décrit comprenant au moins deux couches superposées de fibres unidirectionnelles de renfort pré imprégnées orientées respectivement selon des angles compris entre 10° et 90°.In addition, the device has means for cutting the mattress into a multi-layer product. According to a third aspect, the invention relates to a multi-axial semi-finished composite product obtained by the method described above. comprising at least two superposed layers of preimpregnated unidirectional reinforcing fibers oriented respectively at angles of between 10 ° and 90 °.
Le produit selon l'invention est donc dépourvu de nappes orientées à O° c'est-à-dire est dépourvu de nappes orientées dans sa direction longitudinale. Cette disposition s'avère importante pour la capacité du produit à se déformer car il est ainsi possible de le déformer pour lui faire épouser une forme gauche en utilisant la faculté de glissement entre elles des nappes et des fibres unidirectionnelles et en exerçant la déformation de préférence selon une direction perpendiculaire à la direction longitudinale du produit. Le produit composite semi fini multi axial selon l'invention est dépourvu de fibres disposées dans sa direction longitudinale qui pourraient s'opposer à sa déformation harmonieuse lorsqu'il est mis en œuvre dans la fabrication d'une pièce complexe notamment curviligne ou a double galbes. Ainsi après déformation, le taux de fibres reste important et homogène en tous points du produit.The product according to the invention is therefore devoid of plies oriented at 0 ° that is to say is devoid of plies oriented in its longitudinal direction. This provision is important for the ability of the product to deform because it is thus possible to deform to make him marry a left shape using the ability to slip between them sheets and unidirectional fibers and exerting deformation preferably in a direction perpendicular to the longitudinal direction of the product. The multi-axial multi-finished composite product according to the invention is devoid of fibers arranged in its longitudinal direction which could oppose its harmonious deformation when it is used in the manufacture of a complex part, in particular curvilinear or with double curves. . Thus after deformation, the fiber content remains large and homogeneous in all parts of the product.
Selon une possibilité, le produit composite semi fini multi axial comprend un nombre pair de couches disposées de part et d'autre d'un plan séparant en deux les couches, les deux couches d'un même rang par rapport audit plan étant orientées selon des angles opposés.According to one possibility, the multi-axial semi-finished composite product comprises an even number of layers disposed on either side of a plane separating the layers in two, the two layers of the same rank with respect to said plane being oriented according to opposite angles.
Selon une autre possibilité, le produit composite semi fini multi axial comprend un nombre pair de couches réparties de part et d'autre d'une couche centrale orientée à 90° par rapport à la direction longitudinale du produit, les deux couches d'un même rang par rapport à la couche centrale étant orientées selon des angles opposés.According to another possibility, the multi-axial semi-finished composite product comprises an even number of layers distributed on either side of a central layer oriented at 90 ° with respect to the longitudinal direction of the product, the two layers of the same rank relative to the central layer being oriented at opposite angles.
De préférence, le produit composite semi fini comprend une superposition de :Preferably, the semi-finished composite product comprises a superposition of:
- une première couche comprenant des nappes unidirectionnelles de fibres de renfort pré imprégnées de résine juxtaposées, les dites couches présentant un premier angle par rapport à la direction longitudinale du produit,a first layer comprising unidirectional layers of juxtaposed pre-impregnated reinforcing fiber fibers, said layers having a first angle with respect to the longitudinal direction of the product,
- une deuxième couche comprenant des nappes unidirectionnelles de fibres de renfort pré imprégnées de résine juxtaposées, les dites couches présentant un second angle par rapport à la direction longitudinale du produit,a second layer comprising unidirectional layers of juxtaposed resin pre-impregnated reinforcing fibers, said layers having a second angle with respect to the longitudinal direction of the product,
- une troisième couche comprenant des nappes unidirectionnelles de fibres de renfort pré imprégnées de résine juxtaposées, les dites couches présentant un troisième angle par rapport à la direction longitudinale du matelas.a third layer comprising unidirectional layers of juxtaposed pre-impregnated resin reinforcement fibers, said layers having a third angle with respect to the longitudinal direction of the mattress.
Il est, en outre, prévu que la première couche soit orientée selon un angle compris entre 10° et 90° par rapport à la direction longitudinale du produit, que la deuxième couche soit orientée selon un angle égal à 90° par rapport à la direction longitudinale du produit, que la troisième couche soit orientée selon un angle opposé à l'angle de la première couche compris entre -10° et -90° par rapport à la direction longitudinale du produit.It is furthermore provided that the first layer is oriented at an angle of between 10 ° and 90 ° with respect to the longitudinal direction of the product, that the second layer is oriented at an angle equal to 90 ° to the direction longitudinally of the product, that the third layer is oriented at an angle opposite the angle of the first layer between -10 ° and -90 ° with respect to the longitudinal direction of the product.
De façon préférée, les fibres unidirectionnelles qui entrent dans la composition du produit selon l'invention sont des fibres de carbone pré imprégnées dans une résine thermodurcissable ou thermoplastique, ce qui permet au produit semi fini après une phase ultérieure d'être utilisé comme pièce de structure notamment dans des applications aéronautiques.Preferably, the unidirectional fibers that come into the composition of the product according to the invention are pre-impregnated carbon fibers in a thermosetting or thermoplastic resin, which allows the semi-finished product after a subsequent phase to be used as a piece of structure especially in aeronautical applications.
Pour sa bonne compréhension, l'invention est décrite en référence au dessin ci annexé représentant, à titre d'exemple non limitatif, plusieurs formes de réalisation du procédé de fabrication d'un produit composite multi axial plan selon celle-ci.For a good understanding, the invention is described with reference to the accompanying drawing showing, by way of non-limiting example, several embodiments of the method of manufacturing a multi axial composite product plane according thereto.
Figure 1 est une vue schématique représentant une forme d'exécution du procédé, Figure 2 est une vue en plan du produit composite en cours de fabrication,Figure 1 is a schematic view showing an embodiment of the method, Figure 2 is a plan view of the composite product during manufacture,
Figure 3 est une vue schématique représentant une seconde forme d'exécution du procédé.Figure 3 is a schematic view showing a second embodiment of the method.
La figure 1 fait apparaître schématiquement un dispositif permettant de mettre en œuvre le procédé selon l'invention.Figure 1 shows schematically a device for implementing the method according to the invention.
Ce dispositif comprend, donc, un convoyeur 2 à bandes ainsi que trois équipements 3, 4, 5 permettant de dérouler des nappes 7, 8, 9 de fibres unidirectionnelles de renfort préimprégné. Ces équipements 3, 4, 5 permettant le déroulement des nappes 7, 8, 9 de fibres unidirectionnelles de renfort sont orientés de manière précise par rapport au convoyeur 2.This device comprises, therefore, a belt conveyor 2 and three equipment 3, 4, 5 for unrolling webs 7, 8, 9 of unidirectional fibers reinforcement prepreg. This equipment 3, 4, 5 allowing the unfolding of the plies 7, 8, 9 of unidirectional reinforcing fibers are oriented precisely with respect to the conveyor 2.
Dans l'exemple représenté, ces équipements 3, 4, 5 de déroulement sont en nombre de trois et sont orientés respectivement de + 30°, 90°, et - 30° par rapport à la direction de déplacement du convoyeur 2.In the example shown, these unwinding equipment 3, 4, 5 are in number of three and are respectively oriented by + 30 °, 90 °, and -30 ° with respect to the direction of movement of the conveyor 2.
Les équipements 3, 4, 5 de déroulement peuvent être des tourets ou autres systèmes permettant de délivrer une bande. Les équipements 3, 4, 5 de déroulement peuvent comprendre des moteurs électriques asservis permettant le déroulement d'une longueur déterminée de nappes.The equipment 3, 4, 5 unwinding may be reels or other systems for delivering a band. The equipment 3, 4, 5 unwinding can include servo electric motors for the unwinding of a given length of webs.
De façon manuelle ou automatique, une première couche 10 de nappes unidirectionnelles de fibres de renfort préimprégnées de résine est déposée sur le convoyeur 2. Dans la forme de réalisation représentée sur la figure 1 , cette première couche 10 est orientée selon un angle de 30° par rapport au sens de déplacement du convoyeur. Le sens de déplacement du convoyeur va constituer la direction longitudinale d'un matelas 13 qui sera obtenu par l'empilement de couches successives de nappes unidirectionnelles de fibres de renfort préimprégnées.Manually or automatically, a first layer 10 of unidirectional layers of reinforcement fibers pre-impregnated with resin is deposited on the conveyor 2. In the embodiment shown in FIG. 1, this first layer 10 is oriented at an angle of 30 °. relative to the direction of travel of the conveyor. The direction of movement of the conveyor will constitute the longitudinal direction of a mattress 13 which will be obtained by stacking successive layers of unidirectional layers of preimpregnated reinforcing fibers.
Au fur et à mesure de l'avancement du convoyeur, des nappes de la première couche 10 sont juxtaposées selon un angle de 30° par rapport à la direction de déplacement du convoyeur 2.As the conveyor advances, plies of the first layer 10 are juxtaposed at an angle of 30 ° relative to the direction of movement of the conveyor 2.
Chaque nappe 7, 8, 9 de fibres unidirectionnelles de renfort préimprégnées est coupée à la largeur du convoyeur qui va former la largeur du matelas 13 obtenu par le procédé selon l'invention.Each ply 7, 8, 9 of pre-impregnated unidirectional reinforcing fibers is cut to the width of the conveyor which will form the width of the mattress 13 obtained by the method according to the invention.
A un poste suivant et aval dans la direction de déplacement du convoyeur, on trouve un deuxième équipement 4 de déroulement de nappes de fibres unidirectionnelles de renfort préimprégnées qui forme un angle de 90° avec le sens de déplacement du convoyeur 2.At a next station and downstream in the direction of movement of the conveyor, there is a second equipment 4 unidirectional pre-impregnated fiber plies unfolding which forms an angle of 90 ° with the direction of movement of the conveyor 2.
Suivant le même principe, des nappes 8 de fibres unidirectionnelles de renfort sont juxtaposées pour former la seconde couche 11 du matelas. Ces nappes 8 sont coupées à la largeur du convoyeur.According to the same principle, webs 8 of unidirectional reinforcing fibers are juxtaposed to form the second layer 11 of the mattress. These plies 8 are cut to the width of the conveyor.
Un troisième poste de déroulement de nappes unidirectionnelles de fibres de renfort préimprégnées, qui se situe en aval du poste précédent, est orienté d'un angle de -30° par rapport à la direction de déplacement du convoyeur.A third station unidirectional plies of preimpregnated reinforcing fibers, which is located downstream of the previous station, is oriented at an angle of -30 ° relative to the direction of movement of the conveyor.
Suivant le même principe, une troisième couche 12 de nappes 9 de fibres unidirectionnelles pré imprégnées est formée par juxtaposition de nappes unidirectionnelles de fibres.According to the same principle, a third layer 12 of plies 9 of preimpregnated unidirectional fibers is formed by juxtaposition of unidirectional layers of fibers.
Une étape de compactage du matelas formé des trois couches ainsi définies est prévue en aval des postes de déroulement. Cette étape de compactage peut être réalisée par le passage du matelas entre deux rouleaux avec éventuellement un chauffage de ceux-ci. L'étape de compactage peut également être effectuée par une mise sous vide de la table avec éventuellement un passage en étuve à une température comprise entre 200C et 700C.A compacting step of the mattress formed of the three layers thus defined is provided downstream of the unwinding stations. This compaction step may be performed by passing the mat between two rolls with possibly heating thereof. The compaction step can also be performed by evacuating the table with optionally a passage in an oven at a temperature between 20 0 C and 70 0 C.
Le matelas 13 formé de ces trois couches est ensuite, selon l'invention, découpé en produits 1 unitaires de largeur pouvant être égale à 150 millimètres et de longueur pouvant être égale à la longueur de la table c'est-à-dire jusqu'à 10 m.The mattress 13 formed of these three layers is then, according to the invention, cut into products 1 units of width may be equal to 150 millimeters and length may be equal to the length of the table that is to say up to at 10 m.
Les éléments ainsi formés sont donc des éléments tricouches intégrant des fibres orientées triaxialement.The elements thus formed are thus three-layer elements incorporating triaxially oriented fibers.
Cet élément multi axial composite plan peut être ensuite utilisé et être déformé selon des formes gauches pour être mis en œuvre dans des éléments de type renfort en U, en Z, en C, en oméga qui, de plus, présentent un galbe non rectiligne.This composite planar multi axial element can then be used and be deformed into left-handed shapes to be implemented in elements of U, Z, C, omega reinforcement type which, moreover, have a non-rectilinear curve.
Bien entendu, l'invention n'est pas limitée à la forme de réalisation décrite ci-dessus mais elle en embrasse au contraire toutes les variantes de réalisation.Of course, the invention is not limited to the embodiment described above but it encompasses all the variants.
Il est notamment envisagé de mettre en œuvre le procédé pour un matelas comportant deux couches de nappes de fibres unidirectionnelles pré imprégnées orientées selon des angles opposés par rapport à la direction longitudinale du matelas. A la différence de l'exemple de réalisation montré à la figure 1 , le matelas ainsi formé se dispense d'une couche centrale orientée à 90°. La figure 3 illustre cette mise en œuvre de l'invention dans laquelle deux couches de nappes sont superposées ; dans l'exemple illustré les nappes de fibres unidirectionnelles pré imprégnées de la première couche forment un angle de 30° avec la direction longitudinale du produit tandis que les nappes de fibres unidirectionnelles pré imprégnées de la seconde couche forment un angle de -30° avec la direction longitudinale du produit.It is in particular envisaged to implement the method for a mattress comprising two layers of unidirectional preimpregnated fiber layers oriented at opposite angles with respect to the longitudinal direction of the mattress. Unlike the embodiment shown in Figure 1, the mat thus formed dispenses with a central layer oriented at 90 °. FIG. 3 illustrates this implementation of the invention in which two layers of layers are superimposed; in the example illustrated, the pre-impregnated unidirectional fiber plies of the first layer form an angle of 30 ° with the longitudinal direction of the product while the unidirectional fiber plies pre-impregnated with the second layer form an angle of -30 ° with the longitudinal direction of the product.
On peut également préciser que l'invention peut être mise en œuvre avec un nombre de couches égal à 2, 4, 6, 8 etc. disposées de part en d'autre d'une couche centrale orientée à 90° par rapport à la direction longitudinale du matelas ainsi formé (cas d'un matelas comprenant un nombre impair de couches) ou disposées de part et d'autre d'un plan de symétrie (cas d'un matelas comprenant un nombre pair de couches sans couche centrale), sachant qu'à l'intérieur d'une paire de couches de même rang par rapport à la couche centrale ou par rapport au plan de symétrie, les nappes de ces couches sont orientées selon des angles opposés. On peut également envisager qu'une ou plusieurs couches autres que la couche centrale soit elle-même orientée de 90° par rapport à la direction longitudinale du produit. It can also be specified that the invention can be implemented with a number of layers equal to 2, 4, 6, 8 etc. arranged on each side of a central layer oriented at 90 ° with respect to the longitudinal direction of the mat thus formed (in the case of a mat comprising an odd number of layers) or arranged on either side of a plane of symmetry (in the case of a mattress comprising an even number of layers without a central layer), knowing that inside a pair of layers of the same rank with respect to the central layer or with respect to the plane of symmetry, the layers of these layers are oriented at opposite angles. It is also conceivable that one or more layers other than the central layer is itself oriented 90 ° with respect to the longitudinal direction of the product.

Claims

REVENDICATIONS
1. Procédé de fabrication d'un produit (1 ) composite multi axial plan, caractérisé en ce qu'il comprend notamment les étapes consistant à :1. A method of manufacturing a composite product (1) multi axial plane, characterized in that it comprises in particular the steps of:
(a) former un matelas (13) ayant une direction longitudinale et une direction transversale, multi couches comprenant au moins les étapes consistant à :(a) forming a mattress (13) having a longitudinal direction and a multi-layer transverse direction comprising at least the steps of:
- draper sur une surface support de fabrication, une première couche comprenant des nappes juxtaposées de fibres unidirectionnelles de renfort pré imprégnées de résine, les nappes de la première couche présentant un premier angle par rapport à la direction longitudinale du matelas, - draper sur la première couche (10), au moins une deuxième couche (11 , 12) comprenant des nappes unidirectionnelles de fibres de renfort pré imprégnées de résine juxtaposées, les nappes de la deuxième couche présentant un deuxième angle par rapport à la direction longitudinale du matelas, (b) exercer un compactage sur les couches au nombre de au moins deux,drape on a manufacturing support surface, a first layer comprising layers juxtaposed with unidirectional reinforcing fibers pre-impregnated with resin, the plies of the first layer having a first angle with respect to the longitudinal direction of the mattress, draping on the first layer; layer (10), at least one second layer (11, 12) comprising unidirectional layers of juxtaposed resin pre-impregnated reinforcing fibers, the plies of the second layer having a second angle with respect to the longitudinal direction of the mattress, (b ) compact the layers of which there are at least two,
(c) découper le matelas (13) en au moins un produit composite multi axial plan ayant des propriétés de déformabilité de manière homogène notamment en double courbure permettant de fabriquer des pièces de forme complexe.(c) cutting the mattress (13) into at least one planar multi-axial composite product having homogeneously deformable properties, especially in double curvature, making it possible to manufacture pieces of complex shape.
2. Procédé selon la revendication 1 , caractérisé en ce que l'étape (a) de formation du matelas comprend l'étape consistant à :2. Method according to claim 1, characterized in that the step (a) of forming the mattress comprises the step of:
- draper sur la deuxième couche, une troisième couche (12) comprenant des nappes unidirectionnelles de fibres de renfort pré imprégnées de résine juxtaposées, les dites couches présentant un troisième angle par rapport à la direction longitudinale du matelas.- Draping on the second layer, a third layer (12) comprising unidirectional layers of juxtaposed pre-impregnated resin reinforcement fibers, said layers having a third angle with respect to the longitudinal direction of the mattress.
3. Procédé selon la revendication 1 ou la revendication 2, caractérisé en ce que le drapage de la première couche (10) est réalisé avec un angle compris entre 10° et 90° par rapport à la direction longitudinale du matelas. 3. Method according to claim 1 or claim 2, characterized in that the draping of the first layer (10) is performed at an angle of between 10 ° and 90 ° with respect to the longitudinal direction of the mattress.
4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que le drapage de la deuxième couche (11 ) est réalisé avec un angle égal à 90° par rapport à la direction longitudinale du matelas.4. Method according to one of claims 1 to 3, characterized in that the draping of the second layer (11) is formed with an angle equal to 90 ° with respect to the longitudinal direction of the mattress.
5. Procédé selon l'une des revendications 2 à 4, caractérisé en ce que le drapage de la troisième couche (12) est réalisé avec un angle compris entre -10° et -90° par rapport à la direction longitudinale du matelas.5. Method according to one of claims 2 to 4, characterized in that the draping of the third layer (12) is formed with an angle between -10 ° and -90 ° with respect to the longitudinal direction of the mattress.
6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce qu'il comprend les étapes de drapage d'un nombre pair de couches disposées de part et d'autre d'un plan séparant en deux le matelas, les deux couches d'un même rang par rapport audit plan étant orientées selon des angles opposés.6. Method according to one of claims 1 to 5, characterized in that it comprises the steps of draping an even number of layers disposed on either side of a plane separating in two the mattress, the two layers of the same rank with respect to said plane being oriented at opposite angles.
7. Procédé selon l'une des revendications 1 à 5, caractérisé en ce qu'il comprend les étapes de drapage d'un nombre pair de couches disposées de part et d'autre d'un plan séparant en deux le matelas, les deux couches d'un même rang par rapport audit plan étant orientées selon des angles identiques.7. Method according to one of claims 1 to 5, characterized in that it comprises the steps of draping an even number of layers disposed on either side of a plane separating in two the mattress, the two layers of the same rank with respect to said plane being oriented at identical angles.
8. Procédé selon l'une des revendications 1 à 5, caractérisé en ce qu'il comprend les étapes de drapage d'un nombre pair de couches réparties de part et d'autre d'une couche centrale orientée à 90° par rapport à la direction longitudinale du matelas, les deux couches d'un même rang par rapport à la couche centrale étant orientées selon des angles opposés.8. Method according to one of claims 1 to 5, characterized in that it comprises the steps of draping an even number of layers distributed on either side of a central layer oriented at 90 ° with respect to the longitudinal direction of the mattress, the two layers of the same rank relative to the central layer being oriented at opposite angles.
9. Procédé selon l'une des revendications 1 à 8, caractérisé en ce que les nappes de renfort pré imprégnées sont drapées sur un support qui se déplace de manière continue selon la direction longitudinale du matelas.9. Method according to one of claims 1 to 8, characterized in that the pre-impregnated reinforcing plies are draped over a support which moves continuously in the longitudinal direction of the mattress.
10. Procédé selon l'une des revendications 1 à 9, caractérisé en ce qu'il prévoit la formation d'un matelas (13) dont la largeur est de l'ordre 2000 mm.10. Method according to one of claims 1 to 9, characterized in that it provides for the formation of a mattress (13) whose width is of the order 2000 mm.
11. Dispositif pour la mise en œuvre du procédé selon l'une des revendications 1 à 10, caractérisé en ce que le dispositif comprend notamment un convoyeur (2) présentant une surface d'appui se déplaçant de manière continue et au moins deux équipements (3, 5) de fourniture de nappes orientés par rapport au convoyeur respectivement selon le premier angle et le second angle.11. Device for implementing the method according to one of claims 1 to 10, characterized in that the device comprises in particular a conveyor (2) having a bearing surface moving continuously and at least two devices ( 3, 5) for supplying oriented webs relative to the conveyor respectively at the first angle and the second angle.
12. Dispositif selon la revendication 1 1 , caractérisé en ce qu'il comprend un troisième équipement (4) de fourniture de nappe orienté selon le troisième angle.12. Device according to claim 1 1, characterized in that it comprises a third equipment (4) for supplying the web oriented at the third angle.
13. Dispositif selon la revendication 1 1 ou la revendication 12, caractérisé en ce qu'il présente des moyens de découpe du matelas en un produit semi fini multi couche.13. Device according to claim 1 1 or claim 12, characterized in that it has means for cutting the mattress in a multi-layer semi finished product.
14. Produit composite semi fini multi axial obtenu par un procédé selon l'une des revendications 1 à 10, caractérisé en ce qu'il comprend au moins deux couches (10, 1 1 ) superposées de fibres unidirectionnelles de renfort pré imprégnées orientées respectivement selon des angles compris entre 10° et 90°.14. multi-axial semi-finished composite product obtained by a method according to one of claims 1 to 10, characterized in that it comprises at least two layers (10, 1 1) superimposed preimpregnated unidirectional reinforcing fibers oriented respectively according to angles between 10 ° and 90 °.
15. Produit composite semi fini multi axial selon la revendication 14, caractérisé en ce qu'il comprend un nombre pair de couches disposées de part et d'autre d'un plan séparant en deux les couches, les deux couches d'un même rang par rapport audit plan étant orientées selon des angles opposés.15. Multi-axial multi-finished composite product according to claim 14, characterized in that it comprises an even number of layers arranged on either side of a plane separating in two layers, the two layers of the same rank. relative to said plane being oriented at opposite angles.
16. Produit composite semi fini multi axial selon la revendication 14, caractérisé en ce qu'il comprend un nombre pair de couches réparties de part et d'autre d'une couche (1 1 ) centrale orientée à 90° par rapport à la direction longitudinale du produit, les deux couches d'un même rang par rapport à la couche centrale étant orientées selon des angles opposés.16. multi-axial multi-finished composite product according to claim 14, characterized in that it comprises an even number of layers distributed on either side of a layer (1 1) central oriented at 90 ° to the direction longitudinal of the product, the two layers of the same rank relative to the central layer being oriented at opposite angles.
17. Produit composite semi fini multi axial selon la revendication 15, caractérisé en ce qu'il comprend une superposition de :17. Multi-axial multi-finished composite product according to claim 15, characterized in that it comprises a superposition of:
- une première couche (10) comprenant des nappes unidirectionnelles de fibres de renfort pré imprégnées de résine juxtaposées, les dites couches présentant un premier angle par rapport à la direction longitudinale du produit, - une deuxième couche (1 1 ) comprenant des nappes unidirectionnelles de fibres de renfort pré imprégnées de résine juxtaposées, les dites couches présentant un second angle par rapport à la direction longitudinale du produit,a first layer comprising unidirectional layers of juxtaposed pre-impregnated resin reinforcement fibers, said layers having a first angle with respect to the longitudinal direction of the product; a second layer comprising unidirectional layers of reinforcing fibers pre-impregnated with juxtaposed resin, said layers having a second angle with respect to the longitudinal direction of the product,
- une troisième couche (12) comprenant des nappes unidirectionnelles de fibres de renfort pré imprégnées de résine juxtaposées, les dites couches présentant un troisième angle par rapport à la direction longitudinale du matelas.- A third layer (12) comprising unidirectional layers of juxtaposed pre-impregnated reinforcing fibers, said layers having a third angle with respect to the longitudinal direction of the mattress.
18. Produit composite semi fini multi axial selon la revendication 16 ou la revendication 17, caractérisé en ce que la première couche est orientée selon un angle compris entre 10° et 90° par rapport à la direction longitudinale du produit, en ce que la deuxième couche est orientée selon un angle égal à 90° par rapport à la direction longitudinale du produit, en ce que la troisième couche est orientée selon un angle opposé à l'angle de la première couche compris entre -10° et -90° par rapport à la direction longitudinale du produit.18. multi-axial semi-finished composite product according to claim 16 or claim 17, characterized in that the first layer is oriented at an angle of between 10 ° and 90 ° with respect to the longitudinal direction of the product, in that the second layer is layer is oriented at an angle equal to 90 ° to the longitudinal direction of the product, in that the third layer is oriented at an angle opposite the angle of the first layer of between -10 ° and -90 ° relative to to the longitudinal direction of the product.
19. Produit composite semi fini multi axial selon l'une des revendications 14 à 18, caractérisé en ce que les fibres unidirectionnelles sont de fibre de carbone pré imprégnées dans une résine thermodurcissable ou thermoplastique. 19. multi-axial semi-finished composite product according to one of claims 14 to 18, characterized in that the unidirectional fibers are carbon fiber preimpregnated in a thermosetting or thermoplastic resin.
EP09723074A 2008-03-07 2009-03-05 Method for producing a planar multi-axial composite product and resulting product Withdrawn EP2262635A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0801278A FR2928293B1 (en) 2008-03-07 2008-03-07 METHOD FOR MANUFACTURING A MULTI-AXIAL PLAN COMPOSITE PRODUCT AND PRODUCT OBTAINED THEREBY
PCT/FR2009/050360 WO2009115737A2 (en) 2008-03-07 2009-03-05 Method for producing a planar multi-axial composite product and resulting product

Publications (1)

Publication Number Publication Date
EP2262635A2 true EP2262635A2 (en) 2010-12-22

Family

ID=39941591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09723074A Withdrawn EP2262635A2 (en) 2008-03-07 2009-03-05 Method for producing a planar multi-axial composite product and resulting product

Country Status (5)

Country Link
US (1) US20110111168A1 (en)
EP (1) EP2262635A2 (en)
CN (1) CN102006985A (en)
FR (1) FR2928293B1 (en)
WO (1) WO2009115737A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2988760A1 (en) 2011-01-12 2012-07-19 The Board Of Trustees Of The Leland Stanford Junior University Composite laminated structures and methods for manufacturing and using the same
FR2985682B1 (en) * 2012-01-18 2016-05-06 Aircelle Sa TOOL ASSEMBLY AND METHOD FOR MANUFACTURING A COMPOSITE MATERIAL PART
EP2874800B1 (en) 2012-07-18 2016-09-14 Voith Patent GmbH Device and method for producing fibre-reinforced plastics components
US20150030805A1 (en) * 2013-07-29 2015-01-29 Compagnie Chomarat Composite bi-angle and thin-ply laminate tapes and methods for manufacturing and using the same
US10046539B2 (en) † 2014-07-22 2018-08-14 United Technologies Corporation Secondary reinforcement at interface of laminate structure
DE102015204143A1 (en) 2015-03-09 2016-09-15 Bayerische Motoren Werke Aktiengesellschaft Process for the production of fiber-reinforced plastic components
DE102015204142A1 (en) * 2015-03-09 2016-09-15 Bayerische Motoren Werke Aktiengesellschaft Process for the production of fiber-reinforced plastic components
DE102015217404A1 (en) 2015-09-11 2017-03-16 Bayerische Motoren Werke Aktiengesellschaft Process for the production of fiber-reinforced plastic components
DE102015217402A1 (en) 2015-09-11 2017-03-16 Bayerische Motoren Werke Aktiengesellschaft Process for the production of fiber-reinforced plastic components
MX2019014423A (en) * 2017-06-16 2020-02-05 Albany Eng Composites Inc Woven 3d fiber reinforced structure and method of making thereof.
US11052571B2 (en) * 2018-07-26 2021-07-06 The Boeing Company Continuous fabrication for composite preforms
KR20220104700A (en) * 2019-11-20 2022-07-26 코베스트로 인텔렉쳐 프로퍼티 게엠베하 운트 콤파니 카게 Fiber-reinforced thermoplastic composite sheet and manufacturing method thereof
DE102020206058A1 (en) 2020-05-13 2021-11-18 Ford Global Technologies, Llc Connection element, component made from a composite material and method for manufacturing a component made from a composite material
CN112564351B (en) * 2020-12-11 2023-12-05 陕西航空电气有限责任公司 Composite sleeve for high-speed motor and preparation method thereof
FR3120007B1 (en) * 2021-02-24 2023-11-03 Composites Busch Sa Process for manufacturing a composite material

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE706382A (en) * 1961-06-23 1968-05-10
DE3227166C1 (en) * 1982-07-21 1984-04-12 Vohrer, Christoph, 6240 Königstein Method of making a reinforced hose
DE4130269C2 (en) * 1990-09-13 1996-05-23 Toshiba Machine Co Ltd Method and device for manufacturing laminated prepreg parts
US5156396A (en) * 1991-08-26 1992-10-20 Somar Corporation Golf club shaft
EP0606830A1 (en) * 1993-01-15 1994-07-20 GFM Gesellschaft für Fertigungstechnik und Maschinenbau Aktiengesellschaft Process for the manufacture of a fibre-reinforced resin preimpregnated sheet
US8336596B2 (en) * 2002-11-22 2012-12-25 The Boeing Company Composite lamination using array of parallel material dispensing heads
US20070289700A1 (en) * 2006-06-19 2007-12-20 Nelson Paul E Method and apparatus for producing off-axis composite prepreg material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2009115737A3 (en) 2009-11-26
FR2928293B1 (en) 2016-09-23
WO2009115737A2 (en) 2009-09-24
CN102006985A (en) 2011-04-06
FR2928293A1 (en) 2009-09-11
US20110111168A1 (en) 2011-05-12

Similar Documents

Publication Publication Date Title
EP2262635A2 (en) Method for producing a planar multi-axial composite product and resulting product
EP2259913B1 (en) Method and device for moulding a curved part made from composite material
EP1134314B2 (en) Intermediate composite product, manufacturing of such a product and usage as a molding material
FR2928294A1 (en) METHOD AND DEVICE FOR MAKING A CURVED PROFILE OF COMPOSITE MATERIAL, AND CORRESPONDING PROFILE
WO1999064224A1 (en) Method for making a sandwich-type reinforced composite structural panel with alveolate core and resulting panel
EP2117815B1 (en) Method for making a composite part
FR2960470A1 (en) METHOD FOR MANUFACTURING A STIFFENER IN COMPOSITE MATERIAL WITH AN OMEGA SECTION
FR2949792A1 (en) METHOD FOR MANUFACTURING THERMOPLASTIC POLYMER PRE-IMPREGNATED FIBROUS MATERIAL AND SYSTEM THEREOF
FR2903342A1 (en) Thermosetting or thermoplastic device for the fabrication of pipes e.g. aircraft air conditioner pipe formed of a stack of fold with composite materials, comprises a structured fold, a rigid fold, a reinforcement unit, and a sealing unit
EP3140104B1 (en) Method for creating preforms by applying and shaping oriented fibers
EP3140105A1 (en) Method and machine for creating preforms by compactionless application of oriented fibers
EP2193014B1 (en) Device for producing a part from composite material, including a drainage system and process using the same
EP2511078B1 (en) Method of producing a fibre reinforced structure
FR3078010A1 (en) COMPOSITE MATERIAL AND METHOD FOR MAKING THE MATERIAL
EP2227384B1 (en) Method for producing a cellular fibrous structure
WO2012045969A1 (en) Method for manufacturing stiffeners made of a composite material
WO2017174945A1 (en) Preform for composite materials, having narrowed angles after conformation
EP3204219B1 (en) Method for producing thermoplastic parts reinforced with continuous thermoplastic fibres
FR3106577A1 (en) Manufacturing process of an aircraft wing central box made of composite material
FR3061070A1 (en) METHOD FOR PRODUCING A RAIDI AUTO PANEL IN COMPOSITE MATERIALS AND PANEL OBTAINED BY SAID METHOD
WO2022179956A1 (en) Method for manufacturing a composite part and preform for manufacturing same
WO2007080254A1 (en) Mixed machine and method for placement of strips and for overlaying
FR2478693A1 (en) Precompression of resin impregnated carbon fibre fabrics - to reduce number of layers necessary for an impermeable laminate
WO2021013769A1 (en) Method for manufacturing preforms for composite materials
FR3097156A1 (en) Feed module for the depositing head of fiber strip sections for the production of parts in composite materials, the depositing head, the depositing robot and the feeding method and the depositing method.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20101005

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20170216

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20170627