FR2700730A1 - Technique for manufacturing a connection piece made of thermosetting composite materials produced from continuous fibres on a winding machine - Google Patents

Technique for manufacturing a connection piece made of thermosetting composite materials produced from continuous fibres on a winding machine Download PDF

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Publication number
FR2700730A1
FR2700730A1 FR9300907A FR9300907A FR2700730A1 FR 2700730 A1 FR2700730 A1 FR 2700730A1 FR 9300907 A FR9300907 A FR 9300907A FR 9300907 A FR9300907 A FR 9300907A FR 2700730 A1 FR2700730 A1 FR 2700730A1
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FR
France
Prior art keywords
winding machine
connection piece
manufacturing
technique
composite materials
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.)
Granted
Application number
FR9300907A
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French (fr)
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FR2700730B1 (en
Inventor
David Jean Alphonse
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Individual
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Individual
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Publication date
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Priority to FR9300907A priority Critical patent/FR2700730B1/en
Publication of FR2700730A1 publication Critical patent/FR2700730A1/en
Application granted granted Critical
Publication of FR2700730B1 publication Critical patent/FR2700730B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/76—Winding and joining, e.g. winding spirally helically about more than one axis, e.g. T-pieces, balls
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/564—Winding and joining, e.g. winding spirally for making non-tubular articles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B1/1903—Connecting nodes specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10—Thermosetting resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/727—Fastening elements
    • B29L2031/7278—Couplings, connectors, nipples

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

In order to produce a connection piece made of composites, which is equivalent to titanium in terms of strength, it is essential for the component to be exclusively composed of long fibres, this requiring that the filaments follow paths according to well-defined criteria. Thus, the h x e section of the body (c) of the connector must be equal to half the section of the main bush, this ratio determining the number of impregnated filaments which will be used to produce the component. The hanks which form the component are produced on a winding machine. These connectors can be used in all fields: aeronautics, space, motor vehicles, sailing, etc.

Description

TECHNIQUE DE FABRICATION D'UNE PIECE
DE RACCORDEMENT EN MATERIAUX COMPOSITES
THERMODURCISSABLES REALISES EN FIBRES
CONTINUES SUR MACHINE A BOBINER.TECHNIQUE FOR MANUFACTURING A PART
OF CONNECTION IN COMPOSITE MATERIALS
THERMOSETTING PRODUCTS MADE OF FIBERS
CONTINUOUS ON A WINDING MACHINE.

La peesente invention conerne la technique de fabrication d'une pièce de raccordement en matériaux composites thermodurcissables réalisée en fibres continues sur machine à bobiner.The present invention relates to the technique of manufacturing a connection piece of thermosetting composite materials made of continuous fibers on a winding machine.

Les pièces de raccordement actuelles d'une ossature tubulaire en composite sont de deux sortes : métalliques, elles ont l'inconvénient d'être lourdes; ou en composites avec des fibres courtes comme renfort, la résistance mécanique laisse à désirer.The current connecting pieces of a tubular composite frame are of two kinds: metallic, they have the disadvantage of being heavy; or in composites with short fibers as reinforcement, the mechanical strength leaves something to be desired.

Aucune pièce de raccordement en composite nta actuellement remplacée celle en titane dans le domaine spatiale par exemple.No nta composite connection piece currently replaced that of titanium in the space sector for example.

La présente invention peut apporter une évolution à ce problème.The present invention can bring an evolution to this problem.

L'exposé qui suit permet de comprendre comment est réalisée une telle pièce de raccordement.The following description helps to understand how such a connecting piece is made.

Avant toute fabrication, il faut d'abord calculer les dimentions de la pièce à obtenir en fonction du manchon principal, prenons en exemple pour mieux comprendre, une pièce de raccord comme fig (1) : elle est composée d'un corps creux cylindrique (c) et de 3 manchons (a) (b) et(b').Before any manufacturing, it is first necessary to calculate the dimensions of the part to be obtained according to the main sleeve, let us take as an example to better understand, a connecting part like fig (1): it is composed of a cylindrical hollow body ( c) and 3 sleeves (a) (b) and (b ').

Les 3 manchons ont un imposé qui correspond aux intérieurs des tubes qui doivent s'y emboiter.The 3 sleeves have an imposed which corresponds to the inside of the tubes which must fit into it.

Le manchon principal (a) qui a la section la plus grande détermine la section du corps cylindrique (c) le rapport est section (a) = h xe section (c)
2 = h xe section (c)
La deuxième opération consiste à calculer le nombre de fils imprégnés de résine que représentent la 1/2 surface (a) ainsi que la 1/2 surface (b) et (b').The main sleeve (a) which has the largest section determines the section of the cylindrical body (c) the ratio is section (a) = h xe section (c)
2 = h xe section (c)
The second operation consists in calculating the number of wires impregnated with resin that represent the 1/2 surface (a) as well as the 1/2 surface (b) and (b ').

En admettant que le renfort est composé de carbone 12 K et que le rapport fibre et résine est 55/35, connaissant les densités de la fibre carbone et de la résine utilisées il est facile de calculer le nombre de fils imprégnés représentant la 1/2 surface (a) ainsi que (b) et (b').Assuming that the reinforcement is composed of 12 K carbon and that the fiber and resin ratio is 55/35, knowing the densities of the carbon fiber and the resin used it is easy to calculate the number of impregnated wires representing 1/2 surface (a) as well as (b) and (b ').

I1 ne reste plus qu'a' déterminer la longueur des écheveaux ou plutot leur périmètre. It only remains to determine the length of the skeins or rather their perimeter.

Pour ce raccord et pour des raisons pratiques de mise en place dans le moule il est nécessaire de réaliser trois écheveaux (fig. 2).For this connection and for practical reasons of positioning in the mold, it is necessary to make three skeins (fig. 2).

Les écheveaux sont réalisés sur une machine d'enroulement filamentaire obligatoirement pour des raisons techniques.The skeins are made on a filament winding machine necessarily for technical reasons.

Ils sont alors distribués dans un moule, comme le représente la figure 2.They are then distributed in a mold, as shown in Figure 2.

Après sortie d'étuvage et ébavurage, le moule est ouvert
pour dégager la pièce. Les avantages obtenus grâce à cette invention sont : l'exceptionnelle rigidité des manchons, qui égale le titane, avec une légeretè de trois fois moindre.After leaving the oven and deburring, the mold is opened
to clear the room. The advantages obtained thanks to this invention are: the exceptional rigidity of the sleeves, which equals the titanium, with a lightness of three times less.

L'utilisation de cette technique est envisageable dans les industries nautiques, aérospatiale, automobile, etc.. The use of this technique is possible in the nautical, aerospace, automobile, etc. industries.

Claims (1)

REVENDICATION CLAIM 19 Procédé de fabrication d'une pièce de raccordement en matériaux composites thermodurcissables caractérisée en ce qu'elle est réalisée en fibres continues sur machine à bobiner, et par le fait que les écheveaux composant la pièce sont essentiellement des fils continus imprégnés de résine réalisés sur machine à bobiner et dont les dimensions sont déterminés par le rapport 19 A method of manufacturing a connection piece of thermosetting composite materials, characterized in that it is made of continuous fibers on a winding machine, and by the fact that the skeins making up the piece are essentially continuous wires impregnated with resin produced on winding machine and the dimensions of which are determined by the ratio section(a)= h x e section ( c section (a) = h x e section (c 2  2
FR9300907A 1993-01-25 1993-01-25 Technique for manufacturing a connection piece of thermosetting composite materials made of continuous fibers on a winding machine. Expired - Fee Related FR2700730B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9300907A FR2700730B1 (en) 1993-01-25 1993-01-25 Technique for manufacturing a connection piece of thermosetting composite materials made of continuous fibers on a winding machine.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9300907A FR2700730B1 (en) 1993-01-25 1993-01-25 Technique for manufacturing a connection piece of thermosetting composite materials made of continuous fibers on a winding machine.

Publications (2)

Publication Number Publication Date
FR2700730A1 true FR2700730A1 (en) 1994-07-29
FR2700730B1 FR2700730B1 (en) 1995-03-31

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FR9300907A Expired - Fee Related FR2700730B1 (en) 1993-01-25 1993-01-25 Technique for manufacturing a connection piece of thermosetting composite materials made of continuous fibers on a winding machine.

Country Status (1)

Country Link
FR (1) FR2700730B1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665670A (en) * 1970-04-28 1972-05-30 Nasa Low-mass truss structure
JPS6120726A (en) * 1984-07-09 1986-01-29 Toyoda Boshoku Kk Reinforcement of branched part of long fiber reinforced resin structure
EP0177687A1 (en) * 1984-09-03 1986-04-16 Toyota Jidosha Kabushiki Kaisha Method for the manufacture of a fiber reinforced resin structure
EP0267980A1 (en) * 1982-09-30 1988-05-25 The Boeing Company Method of fabricating a rotor hub of composite material
WO1991004843A2 (en) * 1989-10-04 1991-04-18 Futurtech Ag Process and device plus winder core for the production of pipe fittings made of fibre-reinforced plastic
WO1992004177A1 (en) * 1990-08-31 1992-03-19 Jean Alphonse David Manufacturing technique and composition for multidirectional connection node made of heat-settable composite materials for tubular elements made of similar materials

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665670A (en) * 1970-04-28 1972-05-30 Nasa Low-mass truss structure
EP0267980A1 (en) * 1982-09-30 1988-05-25 The Boeing Company Method of fabricating a rotor hub of composite material
JPS6120726A (en) * 1984-07-09 1986-01-29 Toyoda Boshoku Kk Reinforcement of branched part of long fiber reinforced resin structure
EP0177687A1 (en) * 1984-09-03 1986-04-16 Toyota Jidosha Kabushiki Kaisha Method for the manufacture of a fiber reinforced resin structure
WO1991004843A2 (en) * 1989-10-04 1991-04-18 Futurtech Ag Process and device plus winder core for the production of pipe fittings made of fibre-reinforced plastic
WO1992004177A1 (en) * 1990-08-31 1992-03-19 Jean Alphonse David Manufacturing technique and composition for multidirectional connection node made of heat-settable composite materials for tubular elements made of similar materials

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 7224, Derwent World Patents Index; AN 72-38555T *
DATABASE WPI Week 8611, Derwent World Patents Index; AN 86-071833 *

Also Published As

Publication number Publication date
FR2700730B1 (en) 1995-03-31

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