FR3054273A1 - METHOD FOR MANUFACTURING A MOTOR VEHICLE EQUIPMENT PIECE AND PART OF EQUIPMENT THEREFOR - Google Patents

METHOD FOR MANUFACTURING A MOTOR VEHICLE EQUIPMENT PIECE AND PART OF EQUIPMENT THEREFOR Download PDF

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Publication number
FR3054273A1
FR3054273A1 FR1656896A FR1656896A FR3054273A1 FR 3054273 A1 FR3054273 A1 FR 3054273A1 FR 1656896 A FR1656896 A FR 1656896A FR 1656896 A FR1656896 A FR 1656896A FR 3054273 A1 FR3054273 A1 FR 3054273A1
Authority
FR
France
Prior art keywords
barrel
skin
composite panel
fixing element
thermoplastic material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR1656896A
Other languages
French (fr)
Other versions
FR3054273B1 (en
Inventor
Steve Jeunesse
Valerie Marcel
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.)
Adler Pelzer France Grand Est SAS
Original Assignee
Faurecia Automotive Industrie 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 Faurecia Automotive Industrie SAS filed Critical Faurecia Automotive Industrie SAS
Priority to FR1656896A priority Critical patent/FR3054273B1/en
Priority to CN201710590822.3A priority patent/CN107639844A/en
Publication of FR3054273A1 publication Critical patent/FR3054273A1/en
Application granted granted Critical
Publication of FR3054273B1 publication Critical patent/FR3054273B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/01—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening elements specially adapted for honeycomb panels
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0672—Spin welding
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/069—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding the welding tool cooperating with specially formed features of at least one of the parts to be joined, e.g. cooperating with holes or ribs of at least one 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60—Riveting or staking
    • B29C65/601—Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with the parts to be joined
    • B29C65/603—Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with the parts to be joined the rivets being pushed in blind holes
    • 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
    • B29C66/13—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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • 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
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30325—Particular design of joint configurations the joint involving an anchoring effect making use of protusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one of the parts to be joined
    • B29C66/30326—Particular design of joint configurations the joint involving an anchoring effect making use of protusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one of the parts to be joined in the form of porosity
    • 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
    • B29C66/53—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
    • B29C66/70—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
    • B29C66/725—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 being hollow-walled or honeycombs
    • B29C66/7252—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 being hollow-walled or honeycombs hollow-walled
    • B29C66/72525—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 being hollow-walled or honeycombs hollow-walled comprising honeycomb cores
    • 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
    • B29C66/7392—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 thermoplastic
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
    • 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
    • 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
    • B29C66/731—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 intensive physical properties of the material of the parts to be joined
    • B29C66/7311—Thermal properties
    • 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
    • B29C66/731—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 intensive physical properties of the material of the parts to be joined
    • B29C66/7311—Thermal properties
    • B29C66/73115—Melting point
    • 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
    • B29C66/7392—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 thermoplastic
    • B29C66/73921—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 thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/939—Measuring or controlling the joining process by measuring or controlling the speed characterised by specific speed values or ranges
    • 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
    • B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/12—Paper, e.g. cardboard
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/08—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of welds or the like

Abstract

Ce procédé comprend la fourniture d'un panneau composite (12) comprenant une première (22) et une deuxième (24) peaux et un écarteur (26), et d'un élément de fixation (16) comprenant un fût (44) en matériau thermoplastique (45) ; la mise en rotation de l'élément de fixation et insertion simultanée du fût dans ledit panneau composite, du côté de la première peau (22). La deuxième peau (24) comporte des pores ouverts sur une première face (32), fixée à l'écarteur (26). L'insertion du fût est poursuivie jusqu'à la mise en contact de la première extrémité (46) du fût avec la première face (32), une friction avec ladite deuxième peau provoquant une fusion du matériau thermoplastique (45), qui pénètre dans les pores; le matériau thermoplastique (45) revient à l'état solide après refroidissement, solidarisant l'élément de fixation et la deuxième peau.The method comprises providing a composite panel (12) comprising a first (22) and a second (24) skins and a spacer (26), and a fastener (16) including a barrel (44) thermoplastic material (45); rotating the fastener and simultaneously inserting the barrel into said composite panel, on the side of the first skin (22). The second skin (24) has open pores on a first face (32) attached to the spacer (26). The insertion of the barrel is continued until the first end (46) of the barrel is brought into contact with the first face (32), a friction with said second skin causing a melting of the thermoplastic material (45), which penetrates into pores; the thermoplastic material (45) returns to the solid state after cooling, securing the fastening element and the second skin.

Description

® RÉPUBLIQUE FRANÇAISE® FRENCH REPUBLIC

INSTITUT NATIONAL DE LA PROPRIÉTÉ INDUSTRIELLE © N° de publication : 3 054 273 (à n’utiliser que pour les commandes de reproduction) (© N° d’enregistrement national : 16 56896NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY © Publication number: 3,054,273 (to be used only for reproduction orders) (© National registration number: 16 56896

COURBEVOIE © Int Cl8 : F16 B 5/01 (2017.01), B 32 B 3/12, B 62 D 25/00COURBEVOIE © Int Cl 8 : F16 B 5/01 (2017.01), B 32 B 3/12, B 62 D 25/00

DEMANDE DE BREVET D'INVENTION A1A1 PATENT APPLICATION

©) Date de dépôt : 20.07.16. ©) Date of filing: 20.07.16. © Demandeur(s) : FAURECIA AUTOMOTIVE INDUS- © Applicant (s): FAURECIA AUTOMOTIVE INDUS- (© Priorité : (© Priority: TRIE Société en nom collectif— FR. TRIE General partnership - FR. @ Inventeur(s) : JEUNESSE STEVE et MARCEL @ Inventor (s): YOUTH STEVE and MARCEL VALERIE. VALERIE. (43) Date de mise à la disposition du public de la (43) Date of public availability of the demande : 26.01.18 Bulletin 18/04. request: 26.01.18 Bulletin 18/04. ©) Liste des documents cités dans le rapport de ©) List of documents cited in the report recherche préliminaire : Se reporter à la fin du preliminary research: Refer to end of présent fascicule present booklet (© Références à d’autres documents nationaux (© References to other national documents ® Titulaire(s) : FAURECIA AUTOMOTIVE INDUSTRIE ® Holder (s): FAURECIA AUTOMOTIVE INDUSTRIE apparentés : related: Société en nom collectif. Partnership. ©) Demande(s) d’extension : ©) Extension request (s): (© Mandataire(s) : LAVOIX. (© Agent (s): LAVOIX.

PROCEDE DE FABRICATION D'UNE PIECE D'EQUIPEMENT DE VEHICULE AUTOMOBILE ET PIECE D'EQUIPEMENT ASSOCIEE.METHOD FOR MANUFACTURING A VEHICLE EQUIPMENT PART AND ASSOCIATED EQUIPMENT PART.

FR 3 054 273 - A1 (£/) Ce procédé comprend la fourniture d'un panneau composite (12) comprenant une première (22) et une deuxième (24) peaux et un écarteur (26), et d'un élément de fixation (16) comprenant un fût (44) en matériau thermoplastique (45) ; la mise en rotation de l'élément de fixation et insertion simultanée du fût dans ledit panneau composite, du côté de la première peau (22). La deuxième peau (24) comporte des pores ouverts sur une première face (32), fixée à l'écarteur (26). L'insertion du fût est poursuivie jusqu'à la mise en contact de la première extrémité (46) du fût avec la première face (32), une friction avec ladite deuxième peau provoquant une fusion du matériau thermoplastique (45), qui pénètre dans les pores; le matériau thermoplastique (45) revient à l'état solide après refroidissement, solidarisant l'élément de fixation et la deuxième peau.FR 3 054 273 - A1 (£ /) This method comprises the provision of a composite panel (12) comprising a first (22) and a second (24) skins and a spacer (26), and a fixing element (16) comprising a barrel (44) of thermoplastic material (45); the rotation of the fixing element and simultaneous insertion of the barrel in said composite panel, on the side of the first skin (22). The second skin (24) has open pores on a first face (32), fixed to the spacer (26). The insertion of the barrel is continued until the first end (46) of the barrel is brought into contact with the first face (32), friction with said second skin causing the thermoplastic material (45) to melt, which penetrates into pores; the thermoplastic material (45) returns to the solid state after cooling, joining the fastening element and the second skin.

Figure FR3054273A1_D0001
Figure FR3054273A1_D0002

Procédé de fabrication d’une pièce d’équipement de véhicule automobile et pièce d’équipement associéeMethod of manufacturing a piece of motor vehicle equipment and associated piece of equipment

La présente invention concerne un procédé de fabrication d’une pièce d’équipement de véhicule automobile, du type comprenant les étapes suivantes :The present invention relates to a method of manufacturing a piece of motor vehicle equipment, of the type comprising the following steps:

- fourniture d’un panneau composite comprenantune première et une deuxième peaux, chacune desdites première et deuxième peaux comportant des fibres de renfort liées entre elles par une matrice polymère ; et un écarteur comprenant deux faces opposées, chacune des première et deuxième peaux étant fixée à l’une desdites faces ;- supply of a composite panel comprising first and second skins, each of said first and second skins comprising reinforcing fibers linked together by a polymer matrix; and a retractor comprising two opposite faces, each of the first and second skins being fixed to one of said faces;

le panneau composite présentant une épaisseur d’insertion formée par la première peau et l’écarteur ;the composite panel having an insertion thickness formed by the first skin and the spacer;

- fourniture d’un élément de fixation comprenant un fût réalisé en matériau thermoplastique ; puis- supply of a fastening element comprising a barrel made of thermoplastic material; then

- mise en rotation de l’élément de fixation et insertion simultanée du fût dudit élément de fixation dans ledit panneau composite, du côté de la première peau.- Rotation of the fixing element and simultaneous insertion of the barrel of said fixing element in said composite panel, on the side of the first skin.

Un procédé du type précité est notamment connu du document US2014/0140779. Ce procédé, de type soudure par friction, permet d’assembler un insert thermoplastique avec un panneau composite de type « sandwich », comprenant deux peaux fixées à un écarteur. La rotation à grande vitesse ramollit par friction le matériau thermoplastique du fût, qui se fixe alors à l’écarteur en se déformant.A process of the aforementioned type is known in particular from document US2014 / 0140779. This process, of the friction welding type, makes it possible to assemble a thermoplastic insert with a composite panel of the "sandwich" type, comprising two skins fixed to a spacer. The high-speed rotation frictionally softens the thermoplastic material of the drum, which then attaches to the spacer by deformation.

L’insert solidarisé au panneau sert par exemple de support à des éléments auxiliaires tels que des arbres rotatifs, des poignées ou des anneaux de fixation de sangles. Les pièces d’équipement ainsi formées sont par exemple de type tablette arrière, plancher de chargement ou garniture latérale de coffre.The insert secured to the panel serves, for example, to support auxiliary elements such as rotating shafts, handles or strap fixing rings. The pieces of equipment thus formed are, for example, of the rear shelf, loading floor or side trunk lining.

Les panneaux composites de type « sandwich » dont les écarteurs possèdent une faible masse surfacique sont avantageusement utilisés pour la formation de pièces d’équipement, en raison de leur faible poids. Cependant, un procédé tel que décrit cidessus est inadapté à de tels panneaux composites. En effet, les écarteurs présentent une densité insuffisante pour permettre un ancrage efficace de l’élément de fixation. Ce dernier risque alors d’être arraché du panneau sous l’effet d’une traction, même modérée.Composite sandwich type panels with spacers having a low basis weight are advantageously used for the formation of pieces of equipment, because of their low weight. However, a method as described above is unsuitable for such composite panels. Indeed, the spacers have an insufficient density to allow effective anchoring of the fastening element. The latter may then be torn from the panel under the effect of traction, even moderate.

Il est connu du document FR1560822, non encore publié, de renforcer localement l’écarteur au moyen d’une résine polymère avant de l’associer à un insert. Un tel procédé est cependant complexe à mettre en œuvre et augmente significativement les coûts de production des pièces d’équipement.Document FR1560822, not yet published, is known to locally reinforce the spacer using a polymer resin before associating it with an insert. However, such a process is complex to implement and significantly increases the production costs of the pieces of equipment.

La présente invention a pour but de proposer un procédé simplifié, permettant l’assemblage d’un élément thermoplastique avec un panneau composite de type « sandwich », quelle que soit la masse surfacique de l’écarteur.The object of the present invention is to propose a simplified method, allowing the assembly of a thermoplastic element with a composite panel of the “sandwich” type, whatever the areal mass of the spacer.

A cet effet, l’invention a pour objet un procédé du type précité, dans lequel :To this end, the invention relates to a process of the aforementioned type, in which:

- une hauteur du fût de l’élément de fixation, entre une première et une deuxième extrémités, est supérieure à l’épaisseur d’insertion du panneau composite ;- A height of the barrel of the fixing element, between a first and a second end, is greater than the insertion thickness of the composite panel;

- la deuxième peau comporte des pores ouverts sur une première face, fixée à l’écarteur ;- the second skin has open pores on a first face, attached to the retractor;

- l’insertion du fût dans le panneau composite est poursuivie jusqu’à la mise en contact de la première extrémité dudit fût avec la première face de la deuxième peau, une friction avec ladite deuxième peau provoquant alors une fusion du matériau thermoplastique de ladite première extrémité du fût ; puis- the insertion of the barrel in the composite panel is continued until the first end of said barrel is brought into contact with the first face of the second skin, friction with said second skin then causing a fusion of the thermoplastic material of said first end of barrel; then

- ledit matériau thermoplastique fondu pénètre dans les pores de làdite première face ;- Said molten thermoplastic material penetrates into the pores of said first face;

- la rotation de l’élément de fixation est stoppée ; puis- the rotation of the fixing element is stopped; then

- le matériau thermoplastique du fût revient à l’état solide après refroidissement, solidarisant l’élément de fixation et la deuxième peau du panneau composite.- the thermoplastic material of the drum returns to the solid state after cooling, joining the fixing element and the second skin of the composite panel.

Suivant d’autres aspects avantageux de l’invention, le procédé comporte l’une ou plusieurs des caractéristiques suivantes, prises isolément ou suivant toutes les combinaisons techniquement possibles :According to other advantageous aspects of the invention, the method comprises one or more of the following characteristics, taken in isolation or in any technically possible combination:

- l’écarteur du panneau composite comporte une structure alvéolaire, ledit écarteur étant préférentiellement formé d’un matériau fibreux de type papier ou carton ;- The spacer of the composite panel comprises a honeycomb structure, said spacer being preferably formed of a fibrous material of paper or cardboard type;

- la deuxième peau présente une porosité supérieure ou égale à 10% ;- the second skin has a porosity greater than or equal to 10%;

- la matrice polymère de la deuxième peau est formée d’un matériau thermoplastique similaire ou identique à celui du fût de l’élément de fixation ;- The polymer matrix of the second skin is formed from a thermoplastic material similar or identical to that of the barrel of the fixing element;

- la vitesse de rotation de l’élément de fixation durant l’insertion du fût dans le panneau composite est supérieure ou égale à 2500 tours/min ;- the speed of rotation of the fastening element during the insertion of the barrel into the composite panel is greater than or equal to 2500 rpm;

- les fibres de renfort de la deuxième peau sont des fibres cellulosiques ;- the reinforcing fibers of the second skin are cellulosic fibers;

- le matériau thermoplastique du fût de l’élément de fixation a une température de fusion inférieure ou égale à 200 °C ;- the thermoplastic material of the barrel of the fixing element has a melting temperature less than or equal to 200 ° C;

- l’élément de fixation comporte une tête solidaire de la deuxième extrémité du fût, une dimension transversale maximale de la tête étant supérieure à une dimension transversale maximale dudit fût ;- The fixing element comprises a head secured to the second end of the barrel, a maximum transverse dimension of the head being greater than a maximum transverse dimension of said barrel;

- le procédé comprend en outre une étape de fourniture d’un élément auxiliaire à assembler au panneau composite, ledit élément auxiliaire comprenant un orifice d’assemblage, l’insertion du fût de l’élément de fixation dans le panneau composite étant réalisé à travers ledit orifice d’assemblage, de sorte à emprisonner ledit élément auxiliaire entre la première face du panneau composite et la tête de l’élément de fixation.the method further comprises a step of supplying an auxiliary element to be assembled to the composite panel, said auxiliary element comprising an assembly orifice, the insertion of the barrel of the fixing element into the composite panel being carried out through said assembly orifice, so as to trap said auxiliary element between the first face of the composite panel and the head of the fixing element.

L’invention se rapporte en outre à une pièce d’équipement de véhicule automobile, susceptible d’être issue d’un procédé de fabrication tel que décrit ci-dessus.The invention also relates to a piece of motor vehicle equipment, capable of being obtained from a manufacturing process as described above.

L’invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d’exemple non limitatif et faite en se référant aux dessins sur lesquels :The invention will be better understood on reading the description which follows, given solely by way of nonlimiting example and made with reference to the drawings in which:

- la figure 1 est une vue schématique, en coupe, d’une pièce d’équipement de véhicule automobile selon un mode de réalisation de l’invention ; la figure 2 est une vue en coupe d’un élément de fabrication de la pièce d’équipement de la figure 1 ;- Figure 1 is a schematic view, in section, of a piece of motor vehicle equipment according to an embodiment of the invention; Figure 2 is a sectional view of a manufacturing element of the piece of equipment of Figure 1;

la figure 3 est une vue en coupe d’un élément de fabrication selon une variante de réalisation de l’invention ; et la figure 4 est une vue schématique d’une étape de fabrication de la pièce d’équipement de la figure 1.Figure 3 is a sectional view of a manufacturing element according to an alternative embodiment of the invention; and Figure 4 is a schematic view of a step in manufacturing the piece of equipment of Figure 1.

La figure 1 représente une pièce 10 d’équipement de véhicule automobile. La pièce 10 est une pièce structurante, telle qu’une tablette arrière de masquage de coffre, un faux plancher d’habitacle ou de coffre, ou un sous-moteur.Figure 1 shows a piece 10 of motor vehicle equipment. The part 10 is a structuring part, such as a rear trunk masking shelf, a false interior or trunk floor, or an under-engine.

La pièce d’équipement 10 comporte un panneau composite 12, un élément auxiliaire 14 assemblé audit panneau, et un élément de fixation 16 solidarisant ledit panneau composite 12 et ledit élément auxiliaire 14.The piece of equipment 10 comprises a composite panel 12, an auxiliary element 14 assembled to said panel, and a fixing element 16 joining said composite panel 12 and said auxiliary element 14.

Le panneau composite 12 est une structure de type « sandwich », comprenant une première face 18 et une deuxième face 20 opposées.The composite panel 12 is a “sandwich” type structure, comprising a first face 18 and a second face 20 opposite.

Plus précisément, le panneau composite 12 comporte une première 22 et une deuxième 24 peaux, formant respectivement la première 18 et la deuxième 20 faces du panneau composite 12. Le panneau composite 12 comporte en outre un écarteur 26, interposé entre les deux peaux 22, 24. Plus particulièrement, les première 22 et deuxième 24 peaux sont fixées sur des faces opposées de l’écarteur 26.More specifically, the composite panel 12 comprises a first 22 and a second 24 skins, respectively forming the first 18 and the second 20 faces of the composite panel 12. The composite panel 12 further comprises a spacer 26, interposed between the two skins 22, 24. More particularly, the first 22 and second 24 skins are fixed to opposite faces of the spacer 26.

L’écarteur 26 est préférentiellement réalisé à base d’une structure alvéolaire ou en nid d’abeille. Ainsi, l’écarteur 26 présente une pluralité de parois 27 sensiblement perpendiculaires aux faces 18, 20 du panneau 12. Les parois 27 délimitent des espaces centraux de contour fermé formant les alvéoles. Les alvéoles définissent par exemple des mailles polygonales, notamment hexagonales.The spacer 26 is preferably made on the basis of a honeycomb or honeycomb structure. Thus, the spacer 26 has a plurality of walls 27 substantially perpendicular to the faces 18, 20 of the panel 12. The walls 27 delimit central spaces of closed outline forming the cells. The cells define, for example, polygonal, in particular hexagonal, meshes.

L’écarteur 26 est avantageusement réalisé en un matériau léger, tel que du papier ou du carton. La masse surfacique de l’écarteur 26 est de préférence inférieure à 1500 g/m2 et est sensiblement comprise entre 400 g/m2 et 1200 g/m2.The spacer 26 is advantageously made of a light material, such as paper or cardboard. The areal mass of the spacer 26 is preferably less than 1500 g / m 2 and is substantially between 400 g / m 2 and 1200 g / m 2 .

Les première 22 et deuxième 24 peaux ont une masse surfacique supérieure, et préférentiellement une épaisseur inférieure, à celles de l’écarteur 26. Chacune desdites peaux 22, 24 comporte des fibres de renfort 28 liées entre elles par une matrice polymère 30. Les fibres de renfort 28 sont par exemple choisies parmi des fibres de carbone, des fibres céramiques telles que des fibres de verre, ou encore des fibres cellulosiques d’origine naturelle telles que des fibres de lin, de chanvre, de kénaf ou de jute.The first 22 and second 24 skins have a greater surface mass, and preferably a thickness less than that of the spacer 26. Each of said skins 22, 24 comprises reinforcing fibers 28 linked together by a polymer matrix 30. The fibers reinforcing elements 28 are for example chosen from carbon fibers, ceramic fibers such as glass fibers, or cellulosic fibers of natural origin such as flax, hemp, kenaf or jute fibers.

Selon un premier mode de réalisation, la matrice polymère 30 est une matrice thermoplastique, comprenant notamment un ou plusieurs matériaux choisis parmi les polyamides (PA), les polyéthylènes (PE), les polypropylènes (PP) et les polyesters comme le poly(téréphtalate d'éthylène) (PET).According to a first embodiment, the polymer matrix 30 is a thermoplastic matrix, comprising in particular one or more materials chosen from polyamides (PA), polyethylenes (PE), polypropylenes (PP) and polyesters such as poly (terephthalate d 'ethylene) (PET).

Selon un deuxième mode de réalisation, la matrice polymère 30 est une matrice thermodurcissable, comprenant notamment un ou des polyesters insaturés.According to a second embodiment, the polymer matrix 30 is a thermosetting matrix, comprising in particular one or more unsaturated polyesters.

Dans le mode de réalisation de la figure 1, on considère que les première 22 et deuxième 24 peaux sont sensiblement identiques. Selon une variante, les première et deuxième peaux sont différentes, comprenant notamment des fibres de renfort 28 et/ou une matrice polymère 30 différentes.In the embodiment of Figure 1, it is considered that the first 22 and second 24 skins are substantially identical. According to a variant, the first and second skins are different, comprising in particular reinforcing fibers 28 and / or a different polymer matrix 30.

En particulier, la deuxième peau 24 comporte une première face 32, au contact de l’écarteur 26, et une deuxième face 20, correspondant à la deuxième face du panneau composite 12. La deuxième peau 24 présente une porosité significative, en particulier au niveau de sa première face 32. Des pores de la deuxième peau 24 sont notamment ouverts sur la première face 32.In particular, the second skin 24 has a first face 32, in contact with the spacer 26, and a second face 20, corresponding to the second face of the composite panel 12. The second skin 24 has significant porosity, in particular at the level of its first face 32. Pores of the second skin 24 are in particular open on the first face 32.

En particulier, la porosité de la deuxième peau 24 est préférentiellement supérieure ou égale à 10%, plus préférentiellement supérieure ou égale à 15%. La porosité est définie comme le rapport entre le volume des pores et le volume total de la deuxième peau 24, notamment à proximité de l’élément de fixation 16.In particular, the porosity of the second skin 24 is preferably greater than or equal to 10%, more preferably greater than or equal to 15%. The porosity is defined as the ratio between the volume of the pores and the total volume of the second skin 24, in particular near the fixing element 16.

La porosité de la deuxième peau 24 est notamment conditionnée par son procédé de fabrication. Selon un premier mode de réalisation, la deuxième peau 24 est formée par compression à chaud d’une nappe de base comportant des fibres de renfort mêlées à des fibres de polymère thermoplastique. Un procédé de fabrication d’un panneau composite 12 correspondant est décrit dans le document EP2822746, au nom de la Demanderesse. A titre indicatif, la porosité de la deuxième peau 24 obtenue selon un tel procédé est de l’ordre de 30% à 45%.The porosity of the second skin 24 is in particular conditioned by its manufacturing process. According to a first embodiment, the second skin 24 is formed by hot compression of a base ply comprising reinforcing fibers mixed with thermoplastic polymer fibers. A method of manufacturing a corresponding composite panel 12 is described in document EP2822746, in the name of the Applicant. As an indication, the porosity of the second skin 24 obtained according to such a process is of the order of 30% to 45%.

Selon un deuxième mode de réalisation, la deuxième peau 24 est formée par compression à chaud d’un empilement de voiles de fibres parallèles liées entre elles par une résine thermodurcissable. Un procédé de fabrication d’un panneau composite 12 correspondant est décrit dans le document WO2015055847, au nom de la Demanderesse. A titre indicatif, la porosité de la deuxième peau 24 obtenue selon un tel procédé est de l’ordre de 20%.According to a second embodiment, the second skin 24 is formed by hot compression of a stack of veils of parallel fibers bonded together by a thermosetting resin. A method of manufacturing a corresponding composite panel 12 is described in document WO2015055847, in the name of the Applicant. As an indication, the porosity of the second skin 24 obtained according to such a process is of the order of 20%.

Selon un troisième mode de réalisation, la deuxième peau 24 est formée par compression à chaud d’un mat de fibres de renfort superposé à une couche de polymère thermoplastique. Un procédé de fabrication d’un panneau composite 12 correspondant est décrit dans le document FR3014731, au nom de la Demanderesse. A titre indicatif, la porosité de la deuxième peau 24 obtenue selon un tel procédé est de l’ordre de 15%.According to a third embodiment, the second skin 24 is formed by hot compression of a mat of reinforcing fibers superimposed on a layer of thermoplastic polymer. A process for manufacturing a corresponding composite panel 12 is described in document FR3014731, in the name of the Applicant. As an indication, the porosity of the second skin 24 obtained according to such a process is of the order of 15%.

Le panneau composite 12 présente une épaisseur d’insertion 34, considérée entre la première face 18 dudit panneau et la première face 32 de la deuxième peau 24.The composite panel 12 has an insertion thickness 34, considered between the first face 18 of said panel and the first face 32 of the second skin 24.

L’élément auxiliaire 14 assemblé au panneau 12 est par exemple une pièce métallique de fixation pour un accessoire, tel qu’une poignée ou une sangle. L’élément auxiliaire comporte notamment une plaque 36, au contact de la première face 18 du panneau 12. La plaque 36 est traversée par un orifice d’assemblage 38.The auxiliary element 14 assembled to the panel 12 is for example a metal fixing part for an accessory, such as a handle or a strap. The auxiliary element notably comprises a plate 36, in contact with the first face 18 of the panel 12. The plate 36 is crossed by an assembly orifice 38.

L’élément de fixation 16 est disposé selon un axe 40. Dans la pièce d’équipement 10, l’axe 40 est perpendiculaire aux première 18 et deuxième 20 faces du panneau 12.The fastening element 16 is arranged along an axis 40. In the piece of equipment 10, the axis 40 is perpendicular to the first 18 and second 20 faces of the panel 12.

La figure 2 représente un élément de fixation 16A, correspondant à l’élément de fixation 16 de la figure 1 avant formation de la pièce d’équipement 10.FIG. 2 represents a fastening element 16A, corresponding to the fastening element 16 of FIG. 1 before formation of the piece of equipment 10.

L’élément de fixation 16, 16A a sensiblement une forme de révolution autour de l’axe 40. Plus précisément, l’élément de fixation 16, 16A comporte une tête 42 sensiblement en forme de disque, et un fût 44, 44A. Une première extrémité dudit fût est solidaire de la tête 42.The fixing element 16, 16A has substantially a shape of revolution around the axis 40. More specifically, the fixing element 16, 16A comprises a head 42 substantially in the form of a disc, and a barrel 44, 44A. A first end of said barrel is integral with head 42.

Le fût 44, 44A est formé d’un matériau thermoplastique 45, par exemple choisi parmi un polyamide, un polypropylène ou un polyester tel que le PET. De préférence, la tête 42 est formée d’une pièce avec le fût 44, 44A.The barrel 44, 44A is formed from a thermoplastic material 45, for example chosen from a polyamide, a polypropylene or a polyester such as PET. Preferably, the head 42 is formed in one piece with the barrel 44, 44A.

Dans le mode de réalisation des figures 1 et 2, le fût 44, 44A a une forme sensiblement tronconique, effilée depuis la tête 42 vers une seconde extrémité 46, 46A dudit fût. Un diamètre maximal du fût 44, 44A, à proximité de la tête 42, est inférieur au diamètre de l’orifice d’assemblage 38 de l’élément auxiliaire 14, lui-même inférieur au diamètre de la tête 42.In the embodiment of Figures 1 and 2, the barrel 44, 44A has a substantially frustoconical shape, tapered from the head 42 to a second end 46, 46A of said barrel. A maximum diameter of the barrel 44, 44A, near the head 42, is less than the diameter of the assembly orifice 38 of the auxiliary element 14, itself less than the diameter of the head 42.

Dans la pièce d’équipement 10 de la figure 1, le fût 44 est inséré dans le panneau composite 12 et dans l’orifice d’assemblage 38 de l’élément auxiliaire 14, de sorte à maintenir la plaque 36 entre la tête 42 et la première face 18 dudit panneau 12.In the piece of equipment 10 of FIG. 1, the barrel 44 is inserted into the composite panel 12 and into the assembly orifice 38 of the auxiliary element 14, so as to hold the plate 36 between the head 42 and the first face 18 of said panel 12.

La figure 3 représente un élément de fixation 116A, correspondant à une variante de réalisation de l’élément de fixation 16A. L’élément de fixation 116A comporte un fût 44A tel que décrit précédemment. La première extrémité dudit fût est formée par une surface plane 142, perpendiculaire à l’axe 40. L’élément de fixation 116A est destiné à former une pièce d’équipement par assemblage avec un panneau composite 12, la surface plane 142 affleurant la première face 18 dudit panneau 12.FIG. 3 represents a fixing element 116A, corresponding to an alternative embodiment of the fixing element 16A. The fixing element 116A comprises a barrel 44A as described above. The first end of said barrel is formed by a flat surface 142, perpendicular to the axis 40. The fixing element 116A is intended to form a piece of equipment by assembly with a composite panel 12, the flat surface 142 flush with the first face 18 of said panel 12.

De préférence, l’élément de fixation 16, 16A, 116A comporte une empreinte 48 disposée selon l’axe 40. L’empreinte 48 forme un trou borgne, ouvert sur la tête 42 ou la surface plane 142. Comme il sera décrit plus bas, l’empreinte 48 est destinée à assembler l’élément de fixation 16A, 116A avec un outil de montage de la pièce d’équipement 10. En particulier, l’empreinte 48 comporte des surfaces 50 de blocage en rotation par rapport audit outil. Lesdites surfaces 50 sont par exemple planes et forment un cylindre de base hexagonale.Preferably, the fixing element 16, 16A, 116A comprises an imprint 48 arranged along the axis 40. The imprint 48 forms a blind hole, open on the head 42 or the flat surface 142. As will be described below , the cavity 48 is intended to assemble the fastening element 16A, 116A with a tool for mounting the piece of equipment 10. In particular, the cavity 48 comprises surfaces 50 for locking in rotation relative to said tool. Said surfaces 50 are for example planar and form a cylinder with a hexagonal base.

Le fût 44A présente une hauteur 52 selon l’axe 40, entre la seconde extrémité 46A et la tête 42 ou la surface plane 142. La hauteur 52 est supérieure à l’épaisseur d’insertion 34 du panneau composite 12 associé pour la formation de la pièce d’équipement 10. Dans l’exemple de la figure 1, la hauteur 52 du fût de l’élément de fixation 16A est supérieure à l’épaisseur d’insertion 34 additionnée de l’épaisseur de la plaque 36.The barrel 44A has a height 52 along the axis 40, between the second end 46A and the head 42 or the flat surface 142. The height 52 is greater than the insertion thickness 34 of the composite panel 12 associated for the formation of the piece of equipment 10. In the example of FIG. 1, the height 52 of the barrel of the fixing element 16A is greater than the insertion thickness 34 added to the thickness of the plate 36.

A titre indicatif, la hauteur 52 du fût de l’élément de fixation 16A est de l’ordre de 2 à 4 cm ; la différence entre ladite hauteur 52 et l’épaisseur d’insertion 34 additionnée de l’épaisseur de la plaque 36 est de l’ordre de 1 à 2 mm.As an indication, the height 52 of the barrel of the fixing element 16A is of the order of 2 to 4 cm; the difference between said height 52 and the insertion thickness 34 plus the thickness of the plate 36 is of the order of 1 to 2 mm.

Dans la pièce d’équipement 10 de la figure 1, la seconde extrémité 46 du fût 44 est assemblée à la première face 32 de la deuxième peau 24. Plus précisément, le matériau thermoplastique 45 de l’extrémité 46 est partiellement infiltré dans des pores de la deuxième peau 24, de sorte à solidariser le panneau composite 12 et l’élément de fixation 16.In the piece of equipment 10 of FIG. 1, the second end 46 of the barrel 44 is assembled to the first face 32 of the second skin 24. More precisely, the thermoplastic material 45 of the end 46 is partially infiltrated into pores of the second skin 24, so as to secure the composite panel 12 and the fixing element 16.

Un procédé de fabrication de la pièce d’équipement 10 de la figure 1 va maintenant être décrit. Un tel procédé met notamment en œuvre la soudure par friction de l’élément de fixation 16 au panneau composite 12.A method of manufacturing the piece of equipment 10 in FIG. 1 will now be described. Such a method notably implements friction welding of the fastening element 16 to the composite panel 12.

Un tel procédé met notamment en œuvre un outil de montage 60, partiellement représenté à la figure 4. Un tel outil 60 comporte un nez de montage 62, apte à coopérer avec l’empreinte 48 de l’élément de fixation 16, 16A. Un tel outil de montage, ainsi qu’un procédé de montage associé, est notamment décrit dans le document US20T4/0140779 déjà cité.Such a method notably implements a mounting tool 60, partially shown in FIG. 4. Such a tool 60 includes a mounting nose 62, able to cooperate with the cavity 48 of the fixing element 16, 16A. Such an assembly tool, as well as an associated assembly method, is in particular described in the document US20T4 / 0140779 already cited.

Tout d’abord, l’élément de fixation 16A est assemblé au nez de montage 62. L’ensemble ainsi formé est disposé en vis-à-vis de l’orifice d’assemblage 38 de l’élément auxiliaire 14, ainsi que de la première face 18 du panneau 12. L’axe 40 de l’élément de fixation est disposé perpendiculaire à ladite première face 18.First of all, the fixing element 16A is assembled to the mounting nose 62. The assembly thus formed is arranged opposite the assembly orifice 38 of the auxiliary element 14, as well as of the first face 18 of the panel 12. The axis 40 of the fastening element is arranged perpendicular to said first face 18.

Le nez de montage 62 entraîne ensuite en rotation l’élément de fixation 16A à grande vitesse. Ladite vitesse est préférentiellement supérieure ou égale à 2500 tours/min et plus préférentiellement comprise entre 3000 et 6000 tours/min.The mounting nose 62 then rotates the fastener 16A at high speed. Said speed is preferably greater than or equal to 2500 rpm and more preferably between 3000 and 6000 rpm.

Simultanément, l’élément de fixation 16A est déplacé en direction du panneau 12. Comme représenté à la figure 4, la seconde extrémité 46A du fût 44A entre en contact avec la première peau 22, puis traverse ladite peau en raison de la friction et du déplacement axial dudit fût.Simultaneously, the fixing element 16A is moved in the direction of the panel 12. As shown in FIG. 4, the second end 46A of the barrel 44A comes into contact with the first skin 22, then crosses said skin due to friction and the axial displacement of said barrel.

Au cours de cette étape, les frottements avec ladite première peau 22 font monter en température le matériau thermoplastique 45 de ladite seconde extrémité 46A. Ledit matériau se rapproche de son point de fusion et commence éventuellement à prendre une consistance visqueuse.During this step, the friction with said first skin 22 increases the temperature of the thermoplastic material 45 of said second end 46A. Said material approaches its melting point and eventually begins to take on a viscous consistency.

Après avoir traversé la première peau 22, le fût 44A, toujours en rotation à grande vitesse, traverse l’écarteur 26. Cette étape produit peu d’échauffement en raison de la légèreté du matériau formant ledit écarteur.After passing through the first skin 22, the barrel 44A, still rotating at high speed, crosses the spacer 26. This step produces little heating due to the lightness of the material forming said spacer.

La seconde extrémité 46A du fût 44A entre alors en contact avec la première face 32 de la deuxième peau 24. Les frottements contre ladite première face conduisent le matériau thermoplastique 45 du fût, déjà échauffé, à atteindre une consistance liquide ou visqueuse.The second end 46A of the barrel 44A then comes into contact with the first face 32 of the second skin 24. The friction against said first face leads the thermoplastic material 45 of the barrel, already heated, to reach a liquid or viscous consistency.

De préférence, la rotation du fût 44A est poursuivie durant une durée assez courte après la mise en contact avec la deuxième peau 24. Cette durée est de l’ordre de 2 secondes environ. En parallèle, en raison du déplacement axial de l’élément de fixation 16A, la tête 42 arrive au contact de la plaque 36, bloquant l’élément auxiliaire 14 contre le panneau 12.Preferably, the rotation of the barrel 44A is continued for a fairly short duration after being brought into contact with the second skin 24. This duration is of the order of approximately 2 seconds. In parallel, due to the axial displacement of the fixing element 16A, the head 42 comes into contact with the plate 36, blocking the auxiliary element 14 against the panel 12.

La rotation du nez de montage 62 est alors stoppée et ledit nez de montage est extrait de l’empreinte 48. Le matériau thermoplastique 45 liquéfié s’infiltre dans les pores de la deuxième peau 24 à proximité de sa première face 32. Après refroidissement, la seconde extrémité 46 du fût 44 est donc solidaire de ladite deuxième peau 24, assurant l’assemblage de l’élément de fixation 16 et du panneau 12. La pièce d’équipement 10 de la figure 1 est ainsi obtenue.The rotation of the mounting nose 62 is then stopped and said mounting nose is extracted from the impression 48. The liquefied thermoplastic material 45 infiltrates into the pores of the second skin 24 near its first face 32. After cooling, the second end 46 of the barrel 44 is therefore secured to said second skin 24, ensuring the assembly of the fixing element 16 and of the panel 12. The piece of equipment 10 of FIG. 1 is thus obtained.

Comme représenté à la figure 1, la seconde extrémité 46 du fût 44 comporte éventuellement un bulbe 64 de forme sensiblement paraboloïde, disposé à l’intérieur de l’écarteur 26. Ledit bulbe est formé par l’effet de la force centrifuge sur le matériau liquide du fût 44A.As shown in FIG. 1, the second end 46 of the barrel 44 optionally includes a bulb 64 of substantially paraboloid shape, disposed inside the spacer 26. Said bulb is formed by the effect of centrifugal force on the material barrel liquid 44A.

Selon un procédé analogue au procédé ci-dessus, une pièce d’équipement est formée par assemblage d’un panneau composite 12 décrit ci-dessus et de l’élément de fixation 116A de la figure 3. La rotation du nez de montage 62 est stoppée lorsque la surface plane 142 affleure la première face 18 du panneau 12. L’élément de fixation ainsi assemblé au panneau a notamment une fonction de bloc de fixation d’un élément auxiliaire. Par exemple, l’empreinte 48 présente une portion taraudée pour assemblage avec une vis.According to a method analogous to the above method, a piece of equipment is formed by assembling a composite panel 12 described above and the fixing element 116A of FIG. 3. The rotation of the mounting nose 62 is stopped when the flat surface 142 is flush with the first face 18 of the panel 12. The fixing element thus assembled to the panel has in particular a function of fixing block of an auxiliary element. For example, the cavity 48 has a tapped portion for assembly with a screw.

De préférence, la matrice polymère 30 de la deuxième peau 24 est formée d’un matériau thermoplastique similaire ou identique à celui 45 du fût 44, 44A de l’élément de fixation 16, 16A, 116A. Un tel matériau thermoplastique est par exemple un polyamide, un polypropylène ou un polyester. Le matériau liquide du fût 44, 44A a ainsi une meilleure affinité avec ladite matrice, facilitant l’infiltration dudit matériau liquide dans les pores de la deuxième peau 24.Preferably, the polymer matrix 30 of the second skin 24 is formed of a thermoplastic material similar or identical to that 45 of the barrel 44, 44A of the fixing element 16, 16A, 116A. Such a thermoplastic material is for example a polyamide, a polypropylene or a polyester. The liquid material of the barrel 44, 44A thus has a better affinity with said matrix, facilitating the infiltration of said liquid material into the pores of the second skin 24.

Selon un mode de réalisation préférentiel, les fibres de renfort 28 de la deuxième 10 peau 24 sont des fibres cellulosiques d’origine naturelle, telles que des fibres de lin. De telles fibres cellulosiques ont généralement une température de dégradation d’environ 200°C. La courte durée de friction entre l’élément de fixation 16A, 116A et la deuxième peau 24 permet d’éviter que les fibres n’atteignent une telle température à proximité de la zone de contact. Cependant, les fibres cellulosiques 28 sont de préférence associées à un élément de fixation 16 formé d’un matériau 45 dont la température de fusion est inférieure ou égale à 200 °C. Un tel matériau est par exemple le polyamide 11.According to a preferred embodiment, the reinforcing fibers 28 of the second skin 24 are cellulosic fibers of natural origin, such as flax fibers. Such cellulosic fibers generally have a degradation temperature of about 200 ° C. The short friction time between the fixing element 16A, 116A and the second skin 24 makes it possible to prevent the fibers from reaching such a temperature near the contact zone. However, the cellulosic fibers 28 are preferably associated with a fixing element 16 formed from a material 45 whose melting temperature is less than or equal to 200 ° C. Such a material is for example polyamide 11.

La vitesse de rotation du nez de montage 62 est notamment choisie en fonction de la nature du matériau 45 du fût 44, 44A. Ladite vitesse est de préférence choisie suffisamment élevée pour limiter la durée de friction avec la deuxième peau 24, en particulier lorsque cette dernière comprend des fibres cellulosiques. Par ailleurs, ladite vitesse est de préférence choisie suffisamment faible pour limiter la taille du bulbe 64 qui se forme sous l’effet de la force centrifuge.The speed of rotation of the mounting nose 62 is notably chosen as a function of the nature of the material 45 of the barrel 44, 44A. Said speed is preferably chosen to be high enough to limit the duration of friction with the second skin 24, in particular when the latter comprises cellulose fibers. Furthermore, said speed is preferably chosen to be low enough to limit the size of the bulb 64 which is formed under the effect of centrifugal force.

Claims (10)

REVENDICATIONS 1. - Procédé de fabrication d’une pièce d’équipement (10) de véhicule automobile, comprenant les étapes suivantes :1. - Method for manufacturing a piece of equipment (10) for a motor vehicle, comprising the following steps: - fourniture d’un panneau composite (12) comprenant : une première (22) et une deuxième (24) peaux, chacune desdites première et deuxième peaux comportant des fibres de renfort (28) liées entre elles par une matrice polymère (30) ; et un écarteur (26) comprenant deux faces opposées, chacune des première et deuxième peaux étant fixée à l’une desdites faces ;- supply of a composite panel (12) comprising: a first (22) and a second (24) skins, each of said first and second skins comprising reinforcing fibers (28) bonded together by a polymer matrix (30); and a spacer (26) comprising two opposite faces, each of the first and second skins being fixed to one of said faces; le panneau composite présentant une épaisseur d’insertion (34) formée par la première peau (22) et l’écarteur (26) ;the composite panel having an insertion thickness (34) formed by the first skin (22) and the spacer (26); - fourniture d’un élément de fixation (16A, 116A) comprenant un fût (44A) réalisé en matériau thermoplastique (45) ; puis- supply of a fixing element (16A, 116A) comprising a barrel (44A) made of thermoplastic material (45); then - mise en rotation de l’élément de fixation et insertion simultanée du fût dudit élément de fixation dans ledit panneau composite, du côté de la première peau (22) ;- Rotation of the fixing element and simultaneous insertion of the barrel of said fixing element in said composite panel, on the side of the first skin (22); le procédé étant caractérisé en ce que :the method being characterized in that: - une hauteur (52) du fût de l’élément de fixation, entre une première (46A) et une deuxième (42, 142) extrémités, est supérieure à l’épaisseur d’insertion (34) du panneau composite ;- A height (52) of the barrel of the fixing element, between a first (46A) and a second (42, 142) ends, is greater than the insertion thickness (34) of the composite panel; - la deuxième peau (24) comporte des pores ouverts sur une première face (32), fixée à l’écarteur (26) ;- The second skin (24) has open pores on a first face (32), fixed to the spacer (26); - l’insertion du fût dans le panneau composite est poursuivie jusqu’à la mise en contact de la première extrémité (46A) dudit fût avec la première face (32) de la deuxième peau, une friction avec ladite deuxième peau provoquant alors une fusion du matériau thermoplastique (45) de ladite première extrémité du fût ; puis- the insertion of the barrel in the composite panel is continued until the first end (46A) of said barrel is brought into contact with the first face (32) of the second skin, friction with said second skin then causing fusion thermoplastic material (45) from said first end of the barrel; then - ledit matériau thermoplastique fondu pénètre dans les pores de ladite première face ;- Said molten thermoplastic material penetrates into the pores of said first face; - la rotation de l’élément de fixation est stoppée ; puis- the rotation of the fixing element is stopped; then - le matériau thermoplastique (45) du fût revient à l’état solide après refroidissement, solidarisant l’élément de fixation et la deuxième peau du panneau composite.- the thermoplastic material (45) of the barrel returns to the solid state after cooling, joining the fixing element and the second skin of the composite panel. 2. - Procédé selon la revendication 1, dans lequel l’écarteur (26) du panneau composite comporte une structure alvéolaire, ledit écarteur étant préférentiellement formé d’un matériau fibreux de type papier ou carton.2. - Method according to claim 1, wherein the spacer (26) of the composite panel comprises a honeycomb structure, said spacer being preferably formed of a fibrous material of paper or cardboard type. 3, - Procédé selon la revendication 1 ou la revendication 2, dans lequel la deuxième peau (24) présente une porosité supérieure ou égale à 10%.3, - A method according to claim 1 or claim 2, wherein the second skin (24) has a porosity greater than or equal to 10%. 4, - Procédé selon l’une des revendications précédentes, dans lequel la matrice polymère (30) de la deuxième peau est formée d’un matériau thermoplastique similaire ou identique à celui (45) du fût de l’élément de fixation.4, - Method according to one of the preceding claims, wherein the polymer matrix (30) of the second skin is formed of a thermoplastic material similar or identical to that (45) of the barrel of the fixing element. 5. - Procédé selon l’une des revendications précédentes, dans lequel la vitesse de rotation de l’élément de fixation durant l’insertion du fût dans le panneau composite est supérieure ou égale à 2500 tours/min.5. - Method according to one of the preceding claims, wherein the speed of rotation of the fastening element during the insertion of the barrel in the composite panel is greater than or equal to 2500 revolutions / min. 6. - Procédé selon l’une des revendications précédentes, dans lequel les fibres de renfort (28) de la deuxième peau sont des fibres cellulosiques.6. - Method according to one of the preceding claims, wherein the reinforcing fibers (28) of the second skin are cellulosic fibers. 7, - Procédé selon la revendication 6, dans lequel le matériau thermoplastique (45) du fût de l’élément de fixation a une température de fusion inférieure ou égale à 200 °C.7, - The method of claim 6, wherein the thermoplastic material (45) of the barrel of the fixing member has a melting temperature less than or equal to 200 ° C. 8. - Procédé selon l’une des revendications précédentes, dans lequel l’élément de fixation comporte une tête (42) solidaire de la deuxième extrémité du fût, une dimension transversale maximale de la tête étant supérieure à une dimension transversale maximale dudit fût.8. - Method according to one of the preceding claims, wherein the fixing element comprises a head (42) integral with the second end of the barrel, a maximum transverse dimension of the head being greater than a maximum transverse dimension of said barrel. 9. - Procédé selon la revendication 8, comprenant en outre une étape de fourniture d’un élément auxiliaire (14) à assembler au panneau composite, ledit élément auxiliaire comprenant un orifice d’assemblage (38), l’insertion du fût de l’élément de fixation dans le panneau composite étant réalisé à travers ledit orifice d’assemblage, de sorte à emprisonner ledit élément auxiliaire entre la première face (18) du panneau composite et la tête (42) de l’élément de fixation.9. - The method of claim 8, further comprising a step of providing an auxiliary element (14) to be assembled to the composite panel, said auxiliary element comprising an assembly orifice (38), the insertion of the barrel of the fixing element in the composite panel being produced through said assembly orifice, so as to trap said auxiliary element between the first face (18) of the composite panel and the head (42) of the fixing element. 10. - Pièce (10) d’équipement de véhicule automobile, issue d’un procédé de fabrication selon l’une des revendications précédentes.10. - Piece (10) of motor vehicle equipment, resulting from a manufacturing process according to one of the preceding claims. 46A46A
FR1656896A 2016-07-20 2016-07-20 METHOD FOR MANUFACTURING A MOTOR VEHICLE EQUIPMENT PIECE AND PART OF EQUIPMENT THEREFOR Active FR3054273B1 (en)

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FR3054273B1 (en) 2018-08-31
CN107639844A (en) 2018-01-30

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