WO2020152240A1 - Article composite et procédé de formation d'une structure composite - Google Patents

Article composite et procédé de formation d'une structure composite Download PDF

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Publication number
WO2020152240A1
WO2020152240A1 PCT/EP2020/051562 EP2020051562W WO2020152240A1 WO 2020152240 A1 WO2020152240 A1 WO 2020152240A1 EP 2020051562 W EP2020051562 W EP 2020051562W WO 2020152240 A1 WO2020152240 A1 WO 2020152240A1
Authority
WO
WIPO (PCT)
Prior art keywords
mould tool
component
fibre
tie
moulding material
Prior art date
Application number
PCT/EP2020/051562
Other languages
English (en)
Inventor
Alex LAKIC
Frederic SICARD
Original Assignee
Jaguar Land Rover Limited
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 Jaguar Land Rover Limited filed Critical Jaguar Land Rover Limited
Priority to DE112020000494.5T priority Critical patent/DE112020000494T5/de
Publication of WO2020152240A1 publication Critical patent/WO2020152240A1/fr

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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
    • 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
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/543—Fixing the position or configuration of fibrous reinforcements before or during moulding
    • 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
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/083—Combinations of continuous fibres or fibrous profiled structures oriented in one direction and reinforcements forming a two dimensional structure, e.g. mats
    • B29C70/085—Combinations of continuous fibres or fibrous profiled structures oriented in one direction and reinforcements forming a two dimensional structure, e.g. mats the structure being deformed in a three dimensional configuration
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14819—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being completely encapsulated
    • 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
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/081—Combinations of fibres of continuous or substantial length and short fibres
    • 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
    • B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
    • 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
    • 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
    • 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
    • B29C70/205—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 the structure being shaped to form a three-dimensional configuration
    • 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
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • 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
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B29C70/467—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements during mould closing
    • 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
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
    • 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
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/70—Completely encapsulating inserts
    • 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
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/72—Encapsulating inserts having non-encapsulated projections, e.g. extremities or terminal portions of electrical components
    • 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
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • B29C2045/14147—Positioning or centering articles in the mould using pins or needles penetrating through the insert
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
    • B29C33/14—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels against the mould wall
    • 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
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof

Definitions

  • the present disclosure relates to a reinforced composite component, and a method of formation thereof. Aspects of the invention relate to at least a composite structure, a component, a vehicle component, a vehicle and to a method.
  • Fibre reinforced plastic (FRP) components offer large potential mass savings compared to their metallic equivalents, particularly when the orthotropic (directional) nature of fibre reinforcement is capitalised on.
  • a plastic or resin matrix material pre-imbued with short reinforcing fibres is typically employed.
  • the reinforcing fibres are sufficiently short to permit the flow of a moulding dose into a desired complex shape in a mould tool.
  • Such components lack the strength of corresponding components formed by casting of metals and are therefore of limited utility in structural components subject to substantial stresses. It is an aim of the present invention to address one or more disadvantages associated with the prior art.
  • a method of forming a vehicle component comprising:
  • the tie comprising at least one continuous reinforcing fibre portion provided with a first retention portion at a first end and a second retention portion at a second end;
  • moulding material is moulded by the mould tool and the tie is at least partially encapsulated by the moulding material.
  • Embodiments of the invention have the advantage that a reinforcing element in the form of a tie comprising a continuous reinforcing fibre portion may be incorporated into a structure in a position determined by the locations at which the reinforcing fibre is coupled to the mould.
  • Directional enhancements in tensile strength due to the presence of the tie may thereby be imparted to the structure.
  • the tie is provided with at least two retention portions at axially spaced locations of the tie, coupling the at least one continuous reinforcing fibre portion to the mould tool comprising coupling the retention portions to the mould tool at corresponding spaced apart retention portion locating features of the mould tool.
  • the tie may be coupled to the mould tool (which may also be referred to as a‘mould’) in a convenient manner. Furthermore, variations in tie position between respective structures formed by a given mould tool may be reduced due to provision of the mould tool with locating features for the tie retention portions. Thus, a risk that an operator fails to locate the tie in a given position of the mould tool may be reduced. Furthermore, a risk that the position of the tie changes when moulding material is introduced into the mould tool such that the tie is not provided in the desired location is reduced.
  • the retention portions may comprise datum features for accurately holding the component in a jig during the activity of joining the component to another component.
  • introducing the at least one continuous reinforcing fibre portion comprises introducing the at least one reinforcing fibre portion when the mould tool is in an open condition and subsequently closing the mould tool whereby the mould tool is caused to assume a closed condition.
  • introducing moulding material to the mould tool comprises introducing moulding material to the mould tool whilst the mould tool is in the open condition.
  • moulding material may be placed in the mould tool whilst the mould tool is open, allowing an operator, or a robot or other automated equipment, to place moulding material at one or more required locations of the tool.
  • the moulding material may for example be in the form of viscous pieces of moulding material that substantially retain the shape in which an operator, or a robot or other automated equipment, places the pieces in the mould tool until the mould tool is closed. That is, the moulding material may experience little or substantially no change in shape under its own weight following introduction into the mould tool, prior to closing the tool. In some arrangements the moulding material may be of sufficiently low viscosity to experience at least some change in shape under its own weight following introduction into the mould tool, prior to closing the tool.
  • introducing moulding material to the mould tool comprises introducing moulding material to the mould tool whilst the mould tool is in the closed condition.
  • moulding material may be introduced to the mould tool before and/or after closing the mould tool.
  • moulding material in the form or liquid or molten moulding material may be injected into the mould tool in an injection moulding operation.
  • the mould tool is provided with locating features for retaining the retaining portions of the tie in a substantially fixed position when moulding material is moulded by the mould tool and the tie is at least partially encapsulated by the moulding material.
  • the method may comprise allowing the moulding material to cure.
  • the method may comprise providing the fibre portion whereby the fibre portion comprises at least one substantially continuous fibre element.
  • the method may comprise providing the fibre portion whereby the fibre portion comprises a plurality of fibre elements joined to form the continuous fibre portion.
  • a length of at least two of the fibre elements is less than a length of the path of the continuous fibre portion between the spaced apart locations of the mould tool to which the fibre portion is secured.
  • the at least two fibre elements must be coupled to one another in order to form the continuous fibre portion, since individually their length is less than that required to span the distance between the locations at which the tie is secured to the mould tool.
  • the moulding material comprises lengths of a material in the form of fibre elements embedded in a plastic moulding compound that deforms plastically to conform to an internal cavity of the mould tool defining a shape of the component to be moulded when the mould tool is closed.
  • plastic compound is meant a compound that exhibits plasticity.
  • the compound may comprise a plastics material following curing.
  • the fibre elements comprised by the moulding material are of a length less than 10mm.
  • the fibre elements comprised by the moulding material may be less than 0.8mm.
  • the fibre elements comprised by the moulding material may longer than 0.3mm, and in some embodiments may be between 0.3mm and 0.8mm.
  • the fibre elements comprised by the moulding material are of a length in the range from 3mm to 50mm, optionally in the range from 5mm to 40mm, optionally in the range from 10mm to 30mm, optionally in the range from 15mm to 25mm.
  • a fibre element comprises one selected from amongst a carbon fibre element and a glass fibre element. It is to be understood that by carbon fibre element or glass fibre element is meant a single element or strand of carbon fibre material.
  • a motor vehicle component comprising a plastics material and at least one reinforcing tie spanning a length within the component, the tie comprising at least one continuous reinforcing fibre portion, wherein the tie is at least partially encapsulated by the plastics material.
  • the fibre portion is substantially surrounded along substantially the whole length thereof by said plastics material.
  • the tie comprises first and second retention portions coupled to the reinforcing fibre portion at opposite ends thereof.
  • the retention portions may each comprise a peg member arranged to be pegged to an internal wall of a mould tool.
  • the first and second retention portions each have at least a portion exposed at a free surface of the component.
  • the at least a portion of the first and second retention portions exposed at a free surface of the component comprises a tool coupling portion arranged to couple the retention portions to a wall of a mould tool.
  • At least one of the retention portions comprises joining means for joining the component to another component.
  • the joining means comprises at least one selected from amongst a threaded shaft, an externally threaded shaft, a shaft with an internal bore and a shaft with a threaded internal bore.
  • a vehicle comprising a component according to another aspect.
  • FIGURE 1 is a schematic illustration of a tie according to an embodiment of the present invention.
  • FIGURE 2 illustrates schematically a process of installation of a peg member into a mould tool, showing (a) the arrangement of a tie and mould tool prior to coupling of one peg member of the tie to the mould tool, (b) the tie and mould tool after coupling one peg member of the tie to the tool, and (c) the tie shown in (a) and (b) after coupling peg members at opposite ends of the tie to the mould tool;
  • FIGURE 3 is a cross-sectional view of substantially the whole of the mould tool lower portion of FIG. 2 showing the tie installed therein;
  • FIGURE 4 is a schematic illustration of a series of six steps in the forming of a component in a method according to an embodiment of the present invention
  • FIGURE 5 is a cross-sectional view of a mould tool corresponding to the view of FIG. 3 following (a) loading of charges of moulding compound into the mould tool and (b) following closure of the mould tool and wetting of the mould tool and tie by the moulding compound;
  • FIGURE 6 is a schematic illustration of a portion of a component according to an embodiment of the present invention formed to include a tie according to a further embodiment of the present invention
  • FIGURE 7 is a schematic illustration of a tie according to a further embodiment of the present invention wherein a fibre portion of the tie comprises a plurality of carbon fibres;
  • FIGURE 8 is a schematic illustration of a fibre portion of a tie according to a further embodiment of the present invention wherein the fibre portion of the tie comprises a plurality of carbon fibres impregnated with moulding compound resin and embedded in moulding compound;
  • FIGURE 9 is a schematic illustration of a vehicle according to an embodiment of the present invention in which a component formed according to an embodiment of the present invention has been installed;
  • FIGURE 10 is a schematic illustration of an assembly of components according to an embodiment of the present invention.
  • FIGURE 1 1 is a schematic illustration of an assembly of components according to a further embodiment of the present invention.
  • one aspect of the present invention teaches to embed a‘tie’ in the form of a length of one or more fibres within the component.
  • One or more ties may be provided within the component each aligned in a direction corresponding to that along which the component is subject to one or more forces so as to enhance a stiffness and/or strength of the component in that direction.
  • the ties may be provided in locations in which they may resist applied loading to which the component is expected to be subject.
  • FIG. 1 is a schematic illustration of a tie 1 10 suitable for embedding in a component formed by moulding of a plastics material.
  • the tie 1 10 has a reinforcing fibre portion 1 12 comprising a single, substantially continuous, reinforcing fibre or ‘fibre element’.
  • the reinforcing fibre element is a carbon fibre element.
  • the fibre portion 1 12 may comprise a plurality of reinforcing fibre elements.
  • a fibre portion 1 12 comprising more than one fibre element may be referred to as a‘tow’.
  • the fibre elements comprised by a tow may be untwisted, i.e. not twisted together.
  • the fibre elements of a fibre portion may be twisted together.
  • the fibre elements may be fashioned into a rope. Fashioning into a robe may provide a fibre portion 1 12 having a consistent, reproducible cross-section that facilitates processing.
  • the fibre elements may be fashioned into tapes.
  • a fibre element other than carbon fibre elements may be useful in some embodiments, such as a glass fibre or fibre element formed from any other suitable material. Fibre elements of different respective materials may be employed in some embodiments, for example in the same fibre portion of a tie or in respective different ties.
  • the fibre portion 1 12 may comprise fibre elements that do not run continuously from one end of the tie 1 10 to the other.
  • the fibre portion 1 12 may comprise fibre elements that are shorter than the fibre portion 1 12, but which are bonded together to form the continuous fibre portion 1 12.
  • the bonding between fibre elements may be provided by resin and/or moulding compound/moulding material during fabrication of the ties 1 10 before insertion into a mould tool for moulding, as described below.
  • the fibre portion 1 12 is coupled at opposite ends thereof to a respective retention portion in the form of a peg member 1 14A, 1 14B.
  • the peg members 1 14A, 1 14B are formed from a plastics material although other materials may be useful in some alternative embodiments such as a metal, for example a metal alloy.
  • the fibre portion 1 12 is coupled to the peg members 1 14A, 1 14B by embedding of a free end of the fibre portion 1 12 in a respective peg member 1 14A, 1 14B.
  • the purpose of the peg members 1 14A, 1 14B is to enable the tie 1 10 to be positioned and retained in a desired position within a mould tool and coupled to the tool to constrain movement of the tie 1 10.
  • the tie 1 10 is arranged to be capable of being coupled to a mould tool such that the act of moulding the component does not disturb the position of the tie 1 10 within the tool.
  • FIG. 2(a) shows the tie 1 10 of FIG. 1 prior to coupling of the tie 1 10 to a mould tool 140 in which a component may be moulded.
  • the mould tool 140 has a lower portion 142 and a corresponding upper portion 143.
  • a cavity 1 10C is defined by the portions 142, 143, the cavity 1 10C defining the shape of the part to be moulded by the tool 140.
  • Each peg member 1 14A, 1 14B is arranged to be insertable into a corresponding locating feature in the form of a peg mount recess 144 provided in an internal surface of the mould tool 140.
  • the peg mount recess 144 is provided in the lower portion 142 of the mould tool 140.
  • FIG. 2(b) shows the mould tool 140 with a first peg member 1 14A attached to the lower portion 142 of the mould tool 140 by insertion of a shaft portion 1 14AS of the peg member 1 14A into the peg mount recess until a head portion 1 14AH sits in contact with an interior surface of the mould tool lower portion 142.
  • FIG. 2(c) shows the first peg member 1 14A and fibre portion 1 12 following coupling of the second peg member 1 14B to the mould tool 140 - as may be seen from FIG. 2(c) the fibre portion 1 12 has become taught, and in the present example substantially straight.
  • FIG. 3 is a cross-sectional view of substantially the whole of the mould tool lower portion 142 showing the tie 1 10 installed therein.
  • the shaft portions 1 14AH, 1 14BH of each peg member 1 14A, 1 14B are substantially parallel to one another in order to facilitate removal of the peg members 1 14A, 1 14B from the recesses 144 once the peg members 1 14A, 1 14B have become embedded in the component following moulding.
  • FIG. 4 shows a series of six steps in the forming of a component 160 (FIG. 4(f)) in a method according to an embodiment of the present invention.
  • a charge of moulding compound (or‘moulding material’) 158 is introduced into the mould tool 140 and placed on the lower mould tool portion 142.
  • the moulding compound 158 comprises, for example, a two-part epoxy resin compound impregnated with relatively short fibres.
  • the moulding component 158 may comprise, for example, vinylester.
  • the fibres are in the size range from around 3 to around 50mm in length although other sizes may be useful. The size may be selected so that the fibre length is not too long to prevent flow of moulding compound 158 within the mould tool 140 but sufficiently long to permit an enhancement in one or more mechanical properties of the material, for example an enhancement in strength of the material. In some embodiments, a fibre length of 25mm is found to be useful.
  • the moulding compound is a pre-mixed two-part epoxy resin compound with hardener. Provided it is maintained below a certain temperature (in the present embodiment around 50C) the polymerisation reaction that results in hardening (‘setting’ or‘curing’) of the compound is relatively slow and permits handling of the moulding compound 158 including loading into the mould tool 142, 143. However, once the mould tool 140 is heated above a certain temperature at the curing stage (step S109 below) the moulding compound 158‘sets’ and hardens.
  • step S103 the upper mould tool portion 143 is lowered towards the lower portion 142.
  • the upper mould tool portion 143 contacts the moulding compound 158 and begins to compress the moulding compound 158.
  • the pressure exerted by the upper mould tool portion 143 on the moulding compound 158 in turn causes the moulding compound to exert pressure on the peg members 1 14A, 1 14B to retain them within their respective peg mount recess 144.
  • the moulding compound 158 also begins to flow within the mould tool 140, wetting the surfaces defining the mould tool cavity 1 10C.
  • step S107 the upper mould tool portion 143 continues to be lowered until the mould tool 142, 143 is closed and the cavity 1 10C between the lower and upper mould tool portions 142, 143 is substantially filled with moulding compound 158.
  • the mould tool 140 is held in the closed condition as shown whilst the moulding compound 158 is permitted to cure sufficiently to allow the resulting moulded component 160 (comprising the moulding compound 158 and the one or more ties 1 10 embedded within it) to be removed from the tool 140 at step S1 1 1 (FIG. 4(f)).
  • the mould tool 140 is heated to a temperature in the range from around 130C to around 200C in order to cause curing of the moulding compound 158 at a sufficiently high rate.
  • the shafts 1 14AS, 1 14BS of the peg elements 1 14A, 1 14B may be removed by cutting, for example by means of a blade, so that the peg elements 1 14A, 1 14B do not have shafts 1 14AS, 1 14BS or portions of their shafts 1 14AS, 1 14BS projecting from the component 160.
  • the peg elements 1 14A, 1 14B may be retained as part of the component.
  • the peg elements 1 14A, 1 14B may be arranged to permit coupling of the component to another vehicle component.
  • the peg elements 1 14A, 1 14B may be provided with additional means for coupling to another component in the form of an external screw thread, an internal bore, an internal threaded bore, a diametrical hole therethrough or any other suitable additional means.
  • the peg elements 1 14A, 1 14B may be provided with an internal bore, optionally a threaded internal bore, in addition to their shaft portion 1 14AS, 1 14BS.
  • the shaft portions 1 MAS, 1 MBS may be threaded, externally and/or internally.
  • one or more shaft portions 1 14AS, 1 14BS may be arranged to facilitate accurate positioning of a component in order to facilitate joining to another component, resulting in a dimensionally accurate assembly.
  • one or more shaft portions 1 MAS, 1 MBS may facilitate accurate positioning of one component relative to a jig, for example by insertion of a shaft member 1 MAS, 1 MBS into a recess or hole in the jig, or accurate positioning of a component comprising the peg element 1 14A, 1 14B relative to another component.
  • the shaft portion 1 MAS, 1 MBS of one component may be placed in a corresponding aperture or recess in another component to which the component is to be joined, whereby the components are held in a substantially fixed relative orientation, whilst joining of the components such as welding or other joining method takes place.
  • one or more other elements may be placed in the mould tool 140 so as to become embedded within the component 160 during the moulding process conducted over steps S101 to S109.
  • the one or more other elements may, by way of example only, include one or more elements having a threaded bore to permit the component 160 to be screwed or otherwise attached to another component.
  • Other means for attachment of a component 160 to another component may be embedded, such as an element with a non threaded bore, an element with a shaft protruding outwardly from the component 160, and so forth.
  • the shaft may be threaded or provided with other means for attaching the shaft to the other component.
  • the one or more other elements may be provided for the purpose of locating the component 160 in a predetermined position relative to a jig and/or another component whilst joining of the component to the other component takes place.
  • Other arrangements may be useful in some embodiments.
  • FIG. 5(a) is a further cross-sectional view of the mould tool 140 showing both the first and second peg members 1 14A, 1 14B coupled thereto.
  • FIG. 5(a) shows the tool 140 in the open condition with charges of moulding compound 158 therein.
  • the charges of moulding compound 158 have been placed over the first and second peg members 1 14A, 1 14B in this example.
  • the charges of moulding compound 158 may not be placed directly over one or both peg members 1 14A, 1 14B prior to commencing closing of the mould tool 1 14A, 1 14B.
  • FIG. 5(b) is a cross-sectional view of the mould tool 142, 143 following closure thereof. As can be seen, the moulding compound 158 has flowed within the tool 140 to envelop the tie 1 10 and substantially fill the cavity 1 10C defined by the tool 140.
  • a density of a component formed as described above but without the presence of any tie 1 10 may be in the range from around 1.4g to 1.5g per cubic centimetre whilst the Young’s Modulus may be around 30-40 GPa. This is in contrast to a corresponding aluminium component which may have a density of around 2.6g per cubic centimetre and a Young’s Modulus of around 69-70 GPa.
  • the Young’s Modulus may be increased to values of around 130 GPa in the region of the tie and along the direction of the tie 1 10, exceeding those of a corresponding component formed from aluminium.
  • ties 1 10 in a component formed from a plastics material as described above can thus be seen to provide a substantial increase in stiffness, permitting a significant reduction in weight (or‘lightweighting’) of a component with relatively sparing use of the relatively expensive materials from which the tie 1 10 is fashioned.
  • FIG. 6 illustrates a portion of a component 260 formed to include a tie 210 according to a further embodiment of the present invention. Like features of the tie 210 of the embodiment of FIG. 6 to those of the tie 1 10 of the embodiment of FIG. 1 are shown with like reference signs incremented by 100.
  • the tie 210 has a pair of substantially identical peg members (only one of which is shown) having a different shape to those of the embodiment of FIG. 1 .
  • the peg member 214A illustrated in FIG. 6 differs from the peg members 1 14A, 1 14B of the embodiment of FIG. 1 in that the shaft portion 214S has a substantially spherically-shaped key portion 214K at one end thereof, and a head portion 214H (corresponding to the head portion 1 14H of the embodiment of FIG. 1 ) provided at a location spaced apart from the key portion 214K along a length of the shaft portion 214S.
  • the head portion 214H of the embodiment of FIG. 6 is arranged to abut a surface of the lower portion 242 of the mould tool 240 when a portion of the shaft portion 214S at the end opposite the key portion 214K is inserted into the peg member recess 244 formed in the lower portion 242 of the mould tool 240.
  • the key portion 214K of the peg member 214A is arranged to retain the peg member 214A embedded in-situ in the moulding material 258 following curing thereof so that the peg member 214A does not work loose and become detached from the component 260 following release of the component 260 from the mould tool 240. It is to be understood that adhesion of a peg member 1 14A, 214A to moulding material 158, 258 to retain the peg member in a component 160, 260 may not be a trivial task. Therefore, forming the peg member 214A to have a shape that can interlock mechanically with the moulding material 258 may be advantageous in preventing loosening or detachment of a peg member from a formed component.
  • shapeform interlocking may provide a convenient solution to this problem. It is to be understood that shapeform interlocking employing a shape other than the substantially spherical ball shape of the embodiment of FIG. 6 may be useful in some embodiments.
  • the significant geometric characteristic of this embodiment is the re-entrant nature of the section of the key portion 214K that results in an interlocking arrangement of peg 214 and moulding compound 258.
  • the interlocking arrangement resists pull-out of the peg 214 in the direction of the axis of the shaft portion 214AS, 214BS in the absence of friction or bonding between the peg 1 14 and cured moulding compound 158.
  • the tie 210 of the embodiment of FIG. 6 has a fibre portion 212 having a single carbon fibre as in the embodiment of FIG. 1. Flowever as noted above the fibre portion 212 may be formed to have more than one fibre in some embodiments. Furthermore, the one or more fibres may be formed from any other suitable material in some embodiments, such as a glass.
  • a tie 310 may be provided as illustrated in FIG. 7. Like features of the tie 310 of the embodiment of FIG. 7 to those of the tie 1 10 of the embodiment of FIG. 1 are shown with like reference signs incremented by 200.
  • the tie 310 of the embodiment of FIG. 7 has a fibre portion 213 formed from a plurality of carbon fibres. Furthermore, the fibres of the fibre portion 312 are also pre-coated with a resin component of the two-part moulding compound 358 prior to the moulding operation. Thus, the tie 310 may be considered to be‘pre-impregnated’ (or‘pre-wetted’) with resin.
  • This feature that wetting of the fibres of the fibre portion 312 with resin prior to the moulding operation in the mould tool 142, 143 has the advantage of reducing (or eliminating) the problem that wetting of the entire length of all the (one or more) fibres of a given fibre portion 312 does not occur during a moulding operation in which upper and lower portions 142, 242, 143, 243 of a mould tool 140, 240 are brought together to cause flow of moulding compound 158, 258.
  • adhesion of the fibre portion 312 to moulding compound may be enhanced by pre-wetting with resin.
  • the pre-wetting resin being the resin used to pre-impregnate (pre wet) the one or more fibres of the fibre portion 312 need not be the same resin used in the moulding compound 358 employed in the component moulding process, as long as there is sufficient chemical bonding and compatibility between the two resins for the purpose of component formation.
  • the resin- wetted fibres can be partially cured (‘part-cured’) prior to subsequent operations.
  • part-curing may be performed prior to coupling the fibre portion 312 to one or more peg members 314A, 314B, or after coupling to one or more peg members 314 but prior to moulding.
  • part-curing may take place during the process by which the peg members are coupled to the fibre portions 312).
  • This part-curing could make the ties less tacky to handle, less likely to lose / re-distribute resin in storage and handling, make the multi-fibre cross-section more stable during handling and processing, while not detracting from the quality of bonding with the moulding compound.
  • the fibre portion 312 may be pre-impregnated (wetted) or otherwise embedded in with moulding compound of a similar composition to the charges of moulding compound 358 introduced into the mould tool 142, 143.
  • the one or more fibres of a fibre portion may be wetted with resin. In some embodiments, the one or more fibres of a fibre portion may be wetted with moulding compound. In some embodiments the one or more fibres of a fibre portion may be wetted with resin and provided with a coating of moulding compound.
  • a fibre portion 312 pre-impregnated (pre-wetted) with moulding compound 358 may also be part-cured provided part-curing does not adversely affect handling of tie 310 (such as flexibility of the fibre portion 312), the moulding process or one or more properties of the subsequently formed component.
  • FIG. 8 shows a tie 310’ similar to that of the embodiment of FIG. 7 in which the fibre portion 312’ comprises a plurality of fibres 312f.
  • the fibres 312f have been impregnated with resin 357’ of the type used in the moulding compound from which a component comprising the tie 310’ is formed, and the resulting structure coated in moulding compound 358’.
  • moulding compound 158 may be injected into the cavity 1 10C in a mould tool 140 in an injection moulding operation rather than being placed in the cavity 1 10C in the form of charges (‘pieces’ or‘lumps’) of moulding compound 158.
  • Other arrangements may be useful in some alternative embodiments.
  • FIG. 9 shows a vehicle 100 according to an embodiment of the present invention in which a component 160 (not shown) formed according to an embodiment of the present invention has been installed.
  • each of one or more ties may be arranged such that, when two or more components are joined together, for example be means of adhesive or one or more mechanical fixing elements, respective peg members and/or fibre portions of adjacent components are aligned with one another so that stresses transmitted by a tie on one component are transmitted across an interface between components to a tie in an adjacent component.
  • FIG. 10 is a schematic illustration of an assembly 460A of a pair of components 460, 560 each having respective ties 410, 510 (not drawn to scale) provided therein, the ties 410, 510 being of the type illustrated in FIG. 6. It can be seen that, with the components joined together, peg members 414b, 514A of respective tie 410, 510 are substantially adjacent one another. This permits forces born by the tie 410 of one component 460 to be transmitted to the corresponding tie 510 of the other component 560, enhancing one or more mechanical properties of the assembly 460A.
  • the locations of peg members (such as peg members 414A, 514A) may be referred to as‘nodes’.
  • FIG. 1 1 is a schematic illustration of an assembly 660A of a pair of components 610, 710 each having respective ties 612, 712 (not drawn to scale) provided therein, the ties 612, 712 again being of the type illustrated in FIG. 6. It can be seen that, with the components joined together, respective ties 612, 712 are arranged to overlap when the components 610, 710 are viewed in plan view and in section AA of FIG. 1 1. This facilitates the transmission of forces born by the tie 612 of one component 610 to the corresponding tie 712 of the other component 710, enhancing one or more mechanical properties of the assembly 660A.
  • the location(s) at which a given tie should be placed within a given component may be determined by a consideration of the location of portions of a given component that experience the highest levels of stress or strain under a given loading condition.
  • Finite element analysis may for example be used to calculate the amount of stress or strain to which a given volume element (voxel) of a component is subject in order to determine where to place a tie.
  • voxel elements having a stress or strain level below a certain threshold value may be eliminated from a computer model of a given component, the threshold value of stress or strain being set so as to show the locations of material that are considered to require reinforcement by means of a tie.
  • the required locations and arrangements of ties may then be calculated so as to provide reinforcement in these areas.
  • the regions may be found to be elongate in shape, and be referred to as‘flux lines’ in some embodiments.
  • the level of stress or strain in a component may vary as a function of location along a given flux line.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulding By Coating Moulds (AREA)
  • Insertion Pins And Rivets (AREA)

Abstract

L'invention concerne un procédé de formation d'un composant de véhicule (30) comprenant : • l'introduction d'au moins un lien de renfort (110) dans un outil de moule (142), le lien comprenant au moins une partie de fibre de renfort continue (112) pourvue d'une première partie de retenue (114A) au niveau d'une première extrémité et d'une seconde partie de retenue (114B) au niveau d'une seconde extrémité ; • l'accouplement de la ou des parties de fibre de renfort continues à l'outil de moule au niveau d'une pluralité d'emplacements espacés (144) de l'outil de moule par accouplement des parties de retenue à des éléments de positionnement de partie de retenue espacés correspondants de l'outil de moule, les parties de retenue se présentant sous la forme d'éléments de cheville (114A,114B) et les éléments de positionnement de partie de retenue étant des évidements de montage de cheville (144) dans l'outil de moule (142) ; et • l'introduction d'un matériau de moulage dans l'outil de moule, le matériau de moulage étant moulé par l'outil de moule et le lien (110) étant au moins partiellement encapsulé par le matériau de moulage.
PCT/EP2020/051562 2019-01-23 2020-01-23 Article composite et procédé de formation d'une structure composite WO2020152240A1 (fr)

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DE112020000494.5T DE112020000494T5 (de) 2019-01-23 2020-01-23 Verbundstruktur und verfahren zur herstellung einer verbundstruktur

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GB1900954.7A GB2580901B (en) 2019-01-23 2019-01-23 Vehicle component with a tie comprising a continuous reinforcing fibre portion and method of forming the vehicle component
GB1900954.7 2019-01-23

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011143609A (ja) * 2010-01-14 2011-07-28 Toray Ind Inc インサート部品を有する繊維強化樹脂部材の製造方法
WO2018069225A1 (fr) * 2016-10-11 2018-04-19 Jaguar Land Rover Limited Procédé de moulage d'une structure composite

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JPH04135721A (ja) * 1990-09-27 1992-05-11 Mazda Motor Corp 繊維強化樹脂成形品の成形方法
GB2276753B (en) * 1993-04-02 1996-12-11 Sony Uk Ltd Recording method and system
JP5655746B2 (ja) * 2011-09-08 2015-01-21 トヨタ自動車株式会社 繊維強化樹脂材の製造方法
KR20150079267A (ko) * 2013-12-31 2015-07-08 현대자동차주식회사 연속섬유 토우가 포함된 프런트 엔드 모듈의 캐리어 및 이의 제조방법
JP6372195B2 (ja) * 2014-06-30 2018-08-15 東レ株式会社 プリフォームの製造方法及び繊維強化プラスチックの製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011143609A (ja) * 2010-01-14 2011-07-28 Toray Ind Inc インサート部品を有する繊維強化樹脂部材の製造方法
WO2018069225A1 (fr) * 2016-10-11 2018-04-19 Jaguar Land Rover Limited Procédé de moulage d'une structure composite

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GB2580901B (en) 2023-09-06
DE112020000494T5 (de) 2021-11-25
GB2580901A (en) 2020-08-05

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