EP4168243A1 - Versteiftes teil aus einem duroplastischen verbundwerkstoff mit schachtelstruktur und herstellungsverfahren - Google Patents

Versteiftes teil aus einem duroplastischen verbundwerkstoff mit schachtelstruktur und herstellungsverfahren

Info

Publication number
EP4168243A1
EP4168243A1 EP21758400.2A EP21758400A EP4168243A1 EP 4168243 A1 EP4168243 A1 EP 4168243A1 EP 21758400 A EP21758400 A EP 21758400A EP 4168243 A1 EP4168243 A1 EP 4168243A1
Authority
EP
European Patent Office
Prior art keywords
bodies
mandrel
stiffened
composite material
juxtaposed
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.)
Pending
Application number
EP21758400.2A
Other languages
English (en)
French (fr)
Inventor
Frederick Cavaliere
Remi CROSSONNEAU
Francisque BICEP
Joseph THAY-NAM
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.)
ArianeGroup SAS
Original Assignee
ArianeGroup 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 ArianeGroup SAS filed Critical ArianeGroup SAS
Publication of EP4168243A1 publication Critical patent/EP4168243A1/de
Pending 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
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/32—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
    • 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
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • 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
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • B29C33/50—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible
    • B29C33/505—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible cores or mandrels, e.g. inflatable
    • 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
    • B29C70/02—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
    • B29C70/026—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers and with one or more layers of pure plastics material, e.g. foam layers
    • 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
    • B29C70/681—Component parts, details or accessories; Auxiliary operations
    • B29C70/682—Preformed parts characterised by their structure, e.g. form
    • 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
    • B29C70/685—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 by laminating inserts between two plastic films or plates
    • 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
    • B29C70/74—Moulding material on a relatively small portion of the preformed part, e.g. outsert 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
    • B29C70/68—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
    • B29C70/74—Moulding material on a relatively small portion of the preformed part, e.g. outsert moulding
    • B29C70/76—Moulding on edges or extremities of the preformed part
    • B29C70/763—Moulding on edges or extremities of the preformed part the edges being disposed in a substantial flat plane
    • 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
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D24/00—Producing articles with hollow walls
    • B29D24/002—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D24/00—Producing articles with hollow walls
    • B29D24/002—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled
    • B29D24/005—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled the structure having joined ribs, e.g. honeycomb
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/001—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings
    • B29D99/0014—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings provided with ridges or ribs, e.g. joined ribs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
    • H01Q1/288—Satellite antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H01Q15/141—Apparatus or processes specially adapted for manufacturing reflecting surfaces
    • H01Q15/142—Apparatus or processes specially adapted for manufacturing reflecting surfaces using insulating material for supporting the reflecting surface
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/4835—Heat curing adhesives
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5057—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/474—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/524—Joining profiled elements
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/63—Internally supporting the article during joining
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73751—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being uncured, i.e. non cross-linked, non vulcanized
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73753—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being partially cured, i.e. partially cross-linked, partially vulcanized
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73753—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being partially cured, i.e. partially cross-linked, partially vulcanized
    • B29C66/73754—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being partially cured, i.e. partially cross-linked, partially vulcanized the to-be-joined areas of both parts to be joined being partially cured
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73755—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being fully cured, i.e. fully cross-linked, fully vulcanized
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73755—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being fully cured, i.e. fully cross-linked, fully vulcanized
    • B29C66/73756—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being fully cured, i.e. fully cross-linked, fully vulcanized the to-be-joined areas of both parts to be joined being fully cured
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7394—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
    • B29C66/73941—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset characterised by the materials of both parts being thermosets
    • 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
    • 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
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0809—Fabrics
    • 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
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3456—Antennas, e.g. radomes

Definitions

  • the invention relates to a stiffened part, in which the stiffening mode is integrated on at least one of the faces of the part made of thermosetting composite material.
  • the invention can find application for the stiffening of all parts made of thermosetting composite material which must have great dimensional stability under mechanical or thermal stresses and/or great rigidity.
  • the invention thus applies to all technical fields which require stiffened parts of complex shapes; it can for example be structural parts in the space field (for example, satellite antenna reflector, satellite platform structure, distributor ("dispenser" in English, structure which serves as a support for several satellites at the same time and ejection of these satellites once in orbit according to a predefined order), composite interstage structures, composite tanks, etc.) or aeronautical (for example, fuselage panels, wing panels, undercarriage doors landing, access hatches, etc.) and can be applied to the fields of road, air, rail and maritime transport.
  • space field for example, satellite antenna reflector, satellite platform structure, distributor ("dispenser" in English, structure which serves as a support for several satellites at the same time and ejection of these satellites once in orbit according to a predefined order
  • composite interstage structures composite interstage structures
  • satellite antenna reflectors comprise a composite material shell which is assembled, after polymerization, to a rigid rear structure.
  • the shell has a complex double curvature shape; the rear structure, for its part, is made up of an assembly of tubes, sleeves (allowing a junction between the tubes) and fitting type connecting means (allowing a junction between the rear structure and the satellite).
  • connection means of the angle type made of composite material having an L shape The rear structure has a different shape from the shell and is therefore not directly in contact with the hull during the assembly operation.
  • One end of the angles is glued to the rear structure and the other end is glued to the shell.
  • the angle and width of the angles must be chosen so as to allow good contact with the rear face of the hull (double curvature).
  • Each angle type connecting piece must therefore be adapted, in particular to the curvature at the interface with the shell, which implies having a large number of different connecting pieces available and a lot of time for the choice of the piece. adequate connection.
  • this mode of stiffening and assembly is particularly complex and time-consuming, since it requires the manufacture of many elements (tubes, sleeves, very many types of angles) and requires many and meticulous assembly operations by manual gluing. at ambient temperature (assembly of the tubes/sleeves for the production of the rear structure, and assembly of the shell/structure using the angles), which has an impact on the cost of the stiffened structural parts thus obtained.
  • the object of the invention is to propose a mode of stiffening which makes it possible to easily adapt to complex specific shapes of structural parts to be stiffened, while reducing manufacturing costs by drastically reducing the number of elements necessary for stiffening. of a structural part and by reducing the various bonding operations of these elements on the part.
  • the invention proposes a stiffened part comprising at least a first structure made of thermoset composite material, which first structure comprises at least one hollow longitudinal body having at least one open end.
  • the first structure is a box-section structure formed from one or more hollow bodies.
  • Each hollow body can be a tubular component with a circular, rectangular, triangular section, or any other shape whatsoever.
  • stiffened part Some preferred but non-limiting aspects of the stiffened part are:
  • the first structure comprises at least two bodies, said bodies being juxtaposed and/or stacked, the contact between two adjacent bodies taking place via their side wall;
  • the first structure comprises a first row of juxtaposed bodies and a second row of juxtaposed bodies, the first and second rows being stacked with an offset between the bodies of the first row and the bodies of the second row;
  • the stiffened part further comprises a second structure made of thermoset composite material, distinct from the first structure, the first structure being at least partly integrated into the second structure and/or juxtaposed on a surface of the second structure;
  • the second structure can be of the monolithic type (for example a monolithic plate) or of the sandwich type with a cellular core of the type honeycomb or foam with closed or open pores, and two outer skins arranged on either side of the core;
  • the part can be a satellite antenna reflector.
  • the invention also relates to a method of manufacturing a stiffened part as described above, the stiffened part being formed of at least two elements of thermoset composite material including at least one body of the first structure and the optional second structure, the method comprising the following successive steps:
  • thermosetting resin for each body of the first structure, either making a fibrous preform of the body by draping a fabric around a mandrel and impregnating the fibrous preform with a thermosetting resin, or making a preimpregnated fibrous preform by draping a fabric pre-impregnated with a thermosetting resin around a mandrel, whereby a body of unpolymerized thermosetting composite material supported by a mandrel is obtained;
  • thermosetting composite material supported by a mandrel
  • the stiffened part comprises a second structure, provision of the second structure, the second structure being made of unpolymerized, partially polymerized or completely polymerized thermosetting composite material;
  • thermosetting composite material depositing a layer of unpolymerized thermosetting adhesive on a zone of contact of said element with another element of the part;
  • the method further comprises, before the assembly step, depositing an adhesive film between two unpolymerized and/or partially polymerized elements. This keeps these two elements together during assembly; this can also make it possible to improve the mechanical strength of the assembly interface, once the two elements have completely polymerized.
  • the optional step of complete polymerization of at least one body of thermosetting composite material supported by a mandrel is not carried out. Indeed, it is preferable for the body or bodies of the first structure to be completely polymerized during assembly with the second structure, which makes it possible to correctly position the bodies by following the out-of-plane curvatures and the in-plane curvatures at the level assembly interfaces with the second structure.
  • the polymerization of two adjacent elements will be done by co-firing or by co-bonding depending on whether or not one of the two elements is in a completely polymerized state before assembly.
  • thermosetting resin there is also at least one sheet or fabric preimpregnated with thermosetting resin or which is subsequently impregnated with thermosetting resin, this sheet or this fabric being applied, during of the assembly step, on at least one body, preferably on several stacked and/or juxtaposed bodies, and/or on the possible second structure.
  • the mandrel is a grouping of at least two mandrels of smaller sections, either stacked or juxtaposed laterally.
  • each mandrel is made of flexible elastomer.
  • the mandrel can be hollow or solid; preferably, a solid mandrel is chosen.
  • At least one mandrel has a polygonal section, for example of the triangular or parallelepipedal type. Section can be constant or variable
  • the mandrels can have a constant section or a variable section which increases from one end of the mandrel to the other.
  • the invention has many advantages.
  • the body or bodies of the first structure make it possible to produce a boxed assembly which can easily adapt to complex specific shapes in the plane or out of the plane, making it possible to adapt to the surface of a part to be stiffened (the part can for example, have a double curvature surface).
  • the hollow body or bodies forming the first structure are capable of following the in-plane and out-of-plane curvatures at the assembly interfaces with the second structure.
  • the hollow body(s) can be straight or else take any necessary curvature in the plane of assembly with the second structure.
  • the invention makes it possible to ensure good mechanical strength and high reliability of the bonded connections.
  • FIG. 1 shows an example according to the invention of a body obtained by draping a sheet or a preimpregnated fabric around a mandrel of rectangular section, the body having two open ends;
  • FIG. 2 shows another example according to the invention of a body obtained by draping a sheet or a preimpregnated fabric around a mandrel of triangular section, the body having two open ends;
  • FIG. 3 shows another example according to the invention of a body obtained by draping a sheet or a preimpregnated fabric around a mandrel of rectangular section, the body having only one open end;
  • FIG. 4 shows another example according to the invention of a body obtained by draping a sheet or a preimpregnated fabric around a mandrel of variable section, the body having two open ends;
  • FIG. 5a shows, in a cross-sectional view, an example of draping a fabric or a sheet around a mandrel of rectangular section;
  • FIG. 5b shows, in a cross-sectional view, another example of draping a fabric or a sheet around a mandrel of rectangular section
  • - Figure 5c shows, in a cross-sectional view, another example of draping a fabric or a sheet around a mandrel of rectangular section
  • FIG. 5d shows, in a cross-sectional view, an example of draping several fabrics or layers around a mandrel of rectangular section;
  • FIG. 5e shows, in a cross-sectional view, another example of draping several fabrics or layers around a mandrel of rectangular section;
  • FIG. 5f shows, in a cross-sectional view, another example of draping a fabric or a sheet around a mandrel of rectangular section;
  • FIG. 6 shows, in a perspective view, a body formed by draping a fabric around a mandrel formed of a plurality of mandrels of smaller sections which are stacked and / or juxtaposed longitudinally;
  • FIG. 8 shows, in a cross-sectional view, an embodiment of a stiffened part according to the invention
  • FIG. 9 shows, in a cross-sectional view, another embodiment of a stiffened part according to the invention.
  • FIG. 10 shows, in a cross-sectional view, another embodiment of a stiffened part according to the invention.
  • FIG. 11 shows, in a cross-sectional view, another embodiment of a stiffened part according to the invention.
  • FIG. 12 shows, in a cross-sectional view, another embodiment of a stiffened part according to the invention.
  • FIG. 13 shows, in a perspective view, an example of placement of a body (supported by a mandrel) on a surface of a second structure (for example a part to be stiffened), the body being placed in a direction radial of the second structure;
  • FIG. 14 shows, in a perspective view, an example of placement of a body (supported by several mandrels) on a surface of a second structure (for example a part to be stiffened), the body being placed in a direction radial of the second structure and protruding from the second structure, the contact surface between the first structure and the second structure not being over the entire length of the body;
  • - Figure 15 shows, in a perspective view, another example of placement of a body (supported by several mandrels) on a surface of a second structure (for example a part to be stiffened), the body being placed according to a radial direction of the second structure and protruding from the second structure, the contact surface between the first structure and the second structure not being over the entire length of the body and a gap being left between the body and the second structure;
  • - Figure 16 shows, in a perspective view, an example of placement of a body (supported by a mandrel) on a surface of a second structure (for example a part to be stiffened), the body being placed in a direction circumferential of the second structure;
  • - Figure 17 shows, in a perspective view, an example of a stiffened part obtained by placing, on a surface of a second structure (here the part to be stiffened), a first structure formed of a first body arranged in a first radial direction of the second structure, and a second and a third body arranged on either side of the first body in a second radial direction of the second structure, which may be perpendicular to the first direction ;
  • - Figure 18 shows, in a perspective view, another example of a stiffened part obtained by placing, on a surface of a second structure (here the part to be stiffened), a first structure formed of a row of bodies juxtaposed and arranged in radial directions of the second structure;
  • - Figure 19 shows, in a perspective view, another example of a stiffened part obtained by placing a first structure formed of several bodies on a surface of a second structure (here the part to be stiffened), some bodies being positioned in radial directions of the second structure and others in circumferential directions of the second structure, the bodies being joined to each other in contact zones;
  • - Figure 20 shows, in a perspective view, another example of a stiffened part, comprising a first structure formed of a first body arranged in a radial direction of a second structure (here the part to be stiffened) and a second body disposed astride the first body and the second structure, in a circumferential direction of the second structure;
  • FIG. 21 shows, in a perspective view, another example of a stiffened part, made only from bodies assembled to each other and forming the first structure
  • FIG. 22 shows, in a top view, an example of six bodies arranged radially and at equal distances from each other on the surface of a second structure (part to be stiffened);
  • FIG. 23 shows, in a top view, an example of three bodies arranged on the surface of a second structure (part to be stiffened), each body having one end which protrudes from the second structure and the other end joining a side wall of one of the other bodies, the junction of the three bodies forming a triangle at the center of the second structure;
  • FIG. 24 shows, in a top view, another example of four bodies arranged on the surface of a second structure (part to be stiffened), each body having one end which protrudes from the second structure and the other end joining a side wall of one of the other bodies, the junction of the four bodies forming a square in the center of the second structure;
  • FIG. 25 shows, in a top view, another example of four bodies arranged on the surface of a second structure (part to be stiffened), each body having an end which comes to a place at the periphery of the second structure and the other end which comes to another place, diametrically opposite, at the periphery of the second structure, each body overlapping one of the three other bodies and being overlapped by another of the three other bodies;
  • FIG. 26 shows, in a top view, another example of four bodies arranged on the surface of a second structure (part to be stiffened), one end of each body running along the periphery of the second structure and the other end joining a side wall of one of the other bodies near the center of the second structure, the junction of the four bodies forming a circle in the center of the second structure.
  • the stiffened part according to the invention comprises a first structure 6 and a possible second structure 7, the first and second structures being made of thermoset composite material, and the first structure comprising at least one hollow longitudinal body 2 having at least one open end 3.
  • thermoset composite material is a composite material of the fibrous reinforcement type impregnated with a thermosetting matrix which is thermoset by heat treatment. This is what will make it possible to assemble the different elements forming the piece by co-curing (or “co-curing” in English) or by co-gluing (or “co-bonding” in English), as we see further.
  • the fibrous reinforcement can be made of carbon fibers and/or glass and/or KevlarTM fibers; it can also be a combination of several types of fibers, for example a mixture of glass/carbon fibers, or carbon/KevIarTM fibers
  • the matrix is a resin binder that permeates the reinforcement and solidifies when cured.
  • the matrix is a thermosetting resin.
  • the base monomer of the epoxy resin can for example be of the DGEBA (DiGlycidyl Ether of Bisphenol A), TGPAP (TriGlycidyl ParaAminoPhenol) or TGMDA (TetraGlycidyl Methylene DiAniline) type.
  • the hardener can be of the amine type, for example DDS (DiaminoDiphenyl Sulfone).
  • thermosetting resins used and described in this document polymerize completely at a temperature generally between 120° C. and 220° C. for a period of two hours at the polymerization temperature. More specifically, the resins most used in space and aeronautics are so-called 180°C class resins, for which complete polymerization is achieved after 2 hours at 180°C.
  • fabrics or webs can be used and stacked to form strata.
  • the fibrous reinforcement impregnated with resin can optionally be compacted before undergoing polymerization.
  • the assembly of two elements corresponds either to bonding by "co-curing", when the two elements to be assembled are unpolymerized or partially polymerized and are brought to a state of complete polymerization during the same heating cycle, or to bonding by "co-bonding", when one of the two elements is already completely polymerized, with the need to prepare the surface of the polymerized element and to place a layer of resin adhesive at the interface of the two elements thermosetting, adhesive preferably in the form of a film.
  • a layer of adhesive be deposited at the bonding interface of the two elements.
  • the bonding interface will generally be prepared, for example by sanding and cleaning with a solvent, then depositing a film of adhesive.
  • co-bonding there are two heating cycles, a first cycle during which one of the two elements is completely polymerized and a second cycle during which the second element, as well as adhesive, are fully cured. In the end, whether by bonding by "co-curing" or by "co-bonding", a bond is obtained between the two elements by hot bonding which has great reliability and very good mechanical strength.
  • draping is carried out by winding a fabric or a sheet 5 around a mandrel 1 in order to form a preform.
  • the fabric or sheet 5 can be preimpregnated with thermosetting resin, or else be dry and the fabric or sheet is impregnated with a thermosetting resin subsequently, for example by injection or infusion of the resin into the dry preform already shaped.
  • the injection/infusion phase occurs when the preform is placed in a closed mould. This phase is followed by polymerization of the injected resin.
  • the mandrel 1 can have a constant section, for example rectangular (Figure 1) or triangular (Figure 2) or a variable section ( Figure 4).
  • section is variable, it must nevertheless allow the extraction of the mandrel from the body once the resin has polymerized. In this case, particular attention will be paid to ensuring that the variation in section or the deformation of the mandrel during extraction allows the moldability (extraction), from the open end 3, of the mandrel placed inside the body.
  • the body 2 must have at least one open end 3 (in Figure 3 the body has a closed end 4); it can have two open ends 3 (FIGS. 1, 2, 4), in order to allow the mandrel to come out.
  • One or more layers of fabric or ply 5 can be wound around the same mandrel 1.
  • the winding of each layer can be done:
  • the part to be stiffened comprises a first structure 6, composed of one or more bodies 2, and of a possible second structure 7.
  • the stiffened part may only comprise a first structure 6, as illustrated in figure 21, but it generally comprises a second structure 7, which is generally the part to be stiffened.
  • This structure 7 can be a sandwich structure consisting of 2 skins and a core material of the honeycomb type; usually this will be a honeycomb cell core, but it can also be a closed or open pore foam core.
  • the second structure 7 is the sandwich shell of the reflector which it is desired to stiffen.
  • the mandrel is made of flexible elastomer so as to:
  • the second structure 7 can be of the monolithic type or of the sandwich type.
  • the second structure is of the sandwich type.
  • the unpolymerized or partially polymerized body or bodies are placed on the second unpolymerized or partially polymerized structure 7 polymerized taking care to follow the shape of the surface of the second structure and the defined location.
  • the second structure 7 can be completely polymerized. In this case, it will be necessary, before placing the body or bodies 2 on the second structure 7, to prepare the surface of the second structure in the assembly zone (for example, degreasing, sanding, cleaning), then depositing a layer of thermosetting adhesive before draping the bodies 2. After polymerization of the assembly, an assembly by co-bonding is thus obtained.
  • the bodies can be assembled directly on the draping mold of the second structure.
  • the bodies are then partially polymerized (half-cured), they are separated from the mold and the assembly produced is stored without removing the mandrels from the mould.
  • the degree of polymerization measured by differential scanning calorimetry (DSC) according to standard ISO 11357-1:2016, is between 10% and 75%, and preferably between 15% and 40 %.
  • DSC differential scanning calorimetry
  • this assembly can be placed on the surface of the second structure to be stiffened, and complete polymerization can be carried out. Assembly will be by co-firing if the second structure is uncured or partially cured, or by co-bonding, if the second structure is cured (in this case, it will first be necessary to deposit a layer of adhesive, as described previously).
  • the second structure 7 can be produced by draping the second structure on a draping mold with pre-impregnated fabrics or sheets, then assembling the first structure, already constituted, forming a boxed assembly, on the second unpolymerized structure. If the first structure is partially polymerized, there is no need to perform surface preparation at the bonding interface, nor need for an adhesive film at the interface (the assembly being similar to co -cooking). On the contrary, if the first structure is completely polymerized, it is necessary to carry out a preliminary surface treatment of the surface at the location of the bonding (degreasing, sanding, cleaning), then adding an adhesive film (in order to to obtain an assembly by co-bonding).
  • partial polymerization of the first structure is preferred; thus, during the final polymerization, the viscosity of the partially polymerized resin of the first structure will decrease (softening of the resin) and allow, on the one hand, a good conformation of the first structure on the surface of the second structure, and, on the other hand, the creation of bonds between the polymer chains of the two resins (first and second structures).
  • the behavior of the resins of each structure will be similar during the final polymerization.
  • the viscosity of each resin will decrease, allowing a good conformation of the structures at the location of the assembly interfaces, accompanied by the creation of bonds between the polymer chains of the two resins.
  • the assembly configurations of the body or bodies are multiple.
  • the bodies 2 forming the first structure 6 can be assembled on the second structure (FIG. 8), both on and in the second structure (FIG. 12) or even in the second structure (FIGS. 9, 10, 11). It is also possible that there is no second structure 7 and that the first structure 6 alone forms the stiffened part (FIG. 21).
  • the first structure 6 comprises a first row of juxtaposed bodies and a second row of juxtaposed bodies, the first and second rows being stacked and the bodies of the first row being offset with respect to the bodies of the second row.
  • the first and second rows can be offset by a half-width offset of a body.
  • This figure 21 illustrates one of the many possible examples of a stiffened part. By changing the number of rows, shapes of the bodies, as well as the position of the bodies between them, it is possible to obtain multiple configurations, not detailed in this description.
  • the stiffened part comprises a first structure 6 and a second structure 7.
  • the first structure 6 is a stack of four bodies 2; the first structure is assembled on the surface of the second structure 7 with a fold 9.
  • the first structure 6 is a grouping of four bodies 2, while in Figure 10, the first structure 6 comprises a single body 2.
  • the first structure 6 is partly incorporated into the second structure 7.
  • the contact may be a partial contact.
  • the body or bodies 2 can go beyond the surface of the second structure 7 (as illustrated, for example, in FIG. 14) or else locally present a gap between the two surfaces so that they no longer assembled (as shown, for example, in Figure 15).
  • the first structure 6 comprises two juxtaposed bodies 2 and is completely incorporated into the second structure 7.
  • the contact between the adjacent bodies is made by their side wall.
  • the first structure 6 comprises seven stacked and juxtaposed bodies 2 and is partly incorporated into the second structure 7; here, one of the seven bodies is completely integrated into the second structure 7, and the other six bodies are located above the surface of the second structure 7.
  • two or more adjacent bodies may not be in contact with each other, since a ply 9 may be placed between two adjacent bodies.
  • the stiffened part comprises a first and a second structure
  • different assembly configurations are possible.
  • the body or bodies 2 of the first structure 6 can be arranged in any direction on the surface of the structure 7.
  • the positioning of the body or bodies 2 on the surface of the structure 7 can be rectilinear (for example, the figures 22, 23, 24) or curved (for example, figures 25 and 26).
  • the body or bodies 2 of the first structure 6 can be arranged on the surface of the second structure 7 in a radial direction of the second structure (FIG. 13), in a circumferential direction of the second structure (FIG. 16) or well again according to a configuration combining radial and circumferential directions (FIG. 19).
  • the body or bodies 2 may protrude from the second structure 7, as illustrated for example in figure 14, where it can be seen that the contact surface between the body 2 of the first structure and the second structure is not on the entire length of the body. There may also be a gap between the body or bodies 2 and the surface of the second structure 7, as illustrated for example in figure 15.
  • FIGS. 22 to 26 Other configurations are illustrated in FIGS. 22 to 26, where the part to be stiffened (the second structure 7) is a circular peripheral plate.
  • FIG. 17 there is a configuration where the first structure 6 has the shape of a cross, with a first long body 2 positioned in a first radial direction of the second structure 7 and two shorter bodies, which are positioned on either side. other of the first body, in a radial direction of the second structure, perpendicular to the first direction.
  • the two shorter bodies preferably have one end open (for exit from the chuck) and a closed end, the side wall of the closed end allowing assembly with the side wall of the first body.
  • the stiffened part is represented after the extraction of the mandrels 1.
  • the first structure 6 comprises a row of seven juxtaposed bodies 2 of different lengths; contact between adjacent bodies is through their side wall.
  • a few folds 9 can cover the body or bodies 2 of the first structure 6 and/or of the second structure 7.
  • a few folds 9 come to cover the first structure, with a return on the surface of the second framework; an omega-shaped draping (W) is obtained.
  • a first draping covers the four bodies of the first structure, and a second and third draping respectively covers the upper surface and the lower surface of the second structure, as well as the first structure 6.
  • a first and a second layup respectively cover the upper surface and the lower surface of the second structure.
  • a first and second ply 9 respectively covers the lower and upper surface of the second structure 7, as well as the body integrated into the second structure 7.
  • a third ply 9 covers the surface of the structure 6 and part of the upper surface of the structure 7.
  • a few folds 9 can be draped over the front and rear faces of the first structure 6, or between the rows of bodies 2, to finalize the draping.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
EP21758400.2A 2020-07-17 2021-07-16 Versteiftes teil aus einem duroplastischen verbundwerkstoff mit schachtelstruktur und herstellungsverfahren Pending EP4168243A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2007522A FR3112506B1 (fr) 2020-07-17 2020-07-17 Piece raidie en materiau composite thermodurci a structure caissonnee et procede de fabrication
PCT/FR2021/051340 WO2022013513A1 (fr) 2020-07-17 2021-07-16 Piece raidie en materiau composite thermodurci a structure caissonnee et procede de fabrication

Publications (1)

Publication Number Publication Date
EP4168243A1 true EP4168243A1 (de) 2023-04-26

Family

ID=73497876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21758400.2A Pending EP4168243A1 (de) 2020-07-17 2021-07-16 Versteiftes teil aus einem duroplastischen verbundwerkstoff mit schachtelstruktur und herstellungsverfahren

Country Status (4)

Country Link
US (1) US20230264440A1 (de)
EP (1) EP4168243A1 (de)
FR (1) FR3112506B1 (de)
WO (1) WO2022013513A1 (de)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122939B (en) * 1982-06-25 1986-01-08 British Aerospace Jointed composite articles
GB0016149D0 (en) * 2000-06-30 2000-08-23 Short Brothers Plc A noise attenuation panel
EP2637832B1 (de) * 2010-11-11 2016-04-06 Spirit AeroSystems, Inc. Verfahren und systeme zur co-bindung oder co-härtung von teilen mithilfe einer starren / dehnbaren smp-vorrichtung
CA2907857C (en) * 2013-05-31 2021-01-12 Toray Industries, Inc. Production method and production apparatus for fiber-reinforced plastic
US9365022B2 (en) * 2013-06-11 2016-06-14 Bell Helicopter Textron Inc. System and method of post-cure processing of composite core
US9956987B2 (en) * 2013-11-22 2018-05-01 Jtekt Corporation Manufacturing method of bar component and bar component
GB2555657A (en) * 2016-11-08 2018-05-09 Oxford Space Systems Deployable mast structure

Also Published As

Publication number Publication date
FR3112506A1 (fr) 2022-01-21
WO2022013513A1 (fr) 2022-01-20
US20230264440A1 (en) 2023-08-24
FR3112506B1 (fr) 2023-05-12

Similar Documents

Publication Publication Date Title
CA2632913C (fr) Procede de fabrication d'un fuselage d'aeronef en materiau composite
EP0256916B1 (de) FVK-Blatt mit doppeltem Holm und Torsionskasten und mit Sandwich-Waben-Schichtbeplankung und sein Herstellungsverfahren
EP2727711B1 (de) Verbundstoffradiusffüllstoffe und Verfahren zu ihrer Herstellung
EP2170585B1 (de) Strukturverbindungsstange aus einem verbundwerkstoff und verfahren zur herstellung solch einer verbindungsstange
US20110300343A1 (en) Composite Truss Panel Having Fluted Core
EP0686554A1 (de) Gleichrichterflügel aus Verbundwerkstoff und Richtapparat einer Gegenwirkmoment-Vorrichtung mit einem eingelassenen Heckrotor und ihre Verfahren zur Herstellung
WO2010040004A1 (en) Composite truss panel having fluted core and sitffener made of foam and method for making the same
EP2038104B1 (de) Prepreg-anordnung zur herstellung von strukturen, zum beispiel welche, die sich durch aufblasen entfalten
CA2967987C (fr) Procede et pale thermoplastique
JP2011516316A (ja) 両側にカバー層を備えたコア複合体を製造する方法
US9051062B1 (en) Assembly using skeleton structure
BE1017910A3 (fr) Procede de fabrication d'un panneau comprenant au moins un corps en nid-d'abeilles et une premiere peau realisee en materiau composite.
WO2012156525A1 (fr) Panneau composite raidi double face et procédé de réalisation d'un tel panneau
EP3446863B1 (de) Verfahren zum abdichten eines kraftstofftanks
EP3655492B1 (de) Verfahren zur montage von teilen, insbesondere verbundteilen mit faserverstärkungen, durch kleben
EP4168243A1 (de) Versteiftes teil aus einem duroplastischen verbundwerkstoff mit schachtelstruktur und herstellungsverfahren
EP3700740A1 (de) Verfahren zum strukturellen verbinden von bauteilen und texturoberflächeneinsatz zur durchführung des verfahrens
EP2334546B1 (de) Verbindung zweier paneele eines flugzeugrumpfs
FR3112507A1 (fr) Structure de raidissage amelioree destinee a raidir une piece en materiau composite thermodurcissable et procede de raidissage associe
WO2017174945A1 (fr) Préforme pour matériaux composites comportant des angles resserrés après conformation
WO2024209153A1 (fr) Procede de fabrication d'un reservoir en materiau composite
WO2023111419A1 (fr) Procédé de fabrication d'une pièce, en particulier une pièce en matériau composite
FR3070421A1 (fr) Pale pour turbomachine et son procede de fabrication
FR3084007A1 (fr) Piece de liaison thermodurcissable partiellement polymerisee et procedes de fabrication et d'assemblage d'une telle piece de liaison

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

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

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230120

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL 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 RS SE SI SK SM TR

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230612

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)