US20050257362A1 - Procede de fabrication d'une piece de carrosserie de vehicule automobile, piece de carrosserie - Google Patents

Procede de fabrication d'une piece de carrosserie de vehicule automobile, piece de carrosserie Download PDF

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Publication number
US20050257362A1
US20050257362A1 US11/027,016 US2701604A US2005257362A1 US 20050257362 A1 US20050257362 A1 US 20050257362A1 US 2701604 A US2701604 A US 2701604A US 2005257362 A1 US2005257362 A1 US 2005257362A1
Authority
US
United States
Prior art keywords
metal sheet
surface covering
coated
bodywork part
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.)
Abandoned
Application number
US11/027,016
Other languages
English (en)
Inventor
Gerald Andre
Eric Bonneau
Hugues Cheron
Thibault Lacroix
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.)
Plastic Omnium SE
Original Assignee
Plastic Omnium SE
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34575718&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20050257362(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from FR0400013A external-priority patent/FR2864815B1/fr
Application filed by Plastic Omnium SE filed Critical Plastic Omnium SE
Assigned to COMPAGNIE PLASTIC OMNIUM reassignment COMPAGNIE PLASTIC OMNIUM ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BONNEAU, ERIC, ANDRE, GERALD, CHERON, HUGUES, LACROIX, THIBAULT
Publication of US20050257362A1 publication Critical patent/US20050257362A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/06—Fixed roofs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
    • B62D25/105—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles for motor cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/16—Mud-guards or wings; Wheel cover panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D27/00—Connections between superstructure or understructure sub-units
    • B62D27/02—Connections between superstructure or understructure sub-units rigid
    • B62D27/026—Connections by glue bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
    • B62D29/004—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material the metal being over-moulded by the synthetic material, e.g. in a mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
    • B62D29/005—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material preformed metal and synthetic material elements being joined together, e.g. by adhesives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49906—Metal deforming with nonmetallic bonding

Definitions

  • the present invention relates to a method of fabricating a motor vehicle bodywork part, to a bodywork part, to a fender, to a door, and to a tailgate.
  • such fitted modules can be bodywork parts having functional members of plastics material already fastened thereto, such as reinforcement, means for fastening the bodywork parts to the vehicle, spacers, or headlights.
  • the problem lies in that using adhesive between the various parts requires adhesive to be put into place in precise locations, and that is expensive in terms of labor. Furthermore, when it is desired to secure a part on a bodywork part that has already been stamped, certain zones are particularly difficult to reach, thus increasing the difficulty of preparing such fitted-out bodywork parts. In addition, if fastener means are used other than adhesive, then the bodywork part is weakened because of point connections.
  • the present invention seeks to remedy those drawbacks by proposing a method of fabricating a bodywork part whereby bonding functional members to the bodywork part by adhesive is made particularly easy and quick.
  • the invention provides a method of fabricating a motor vehicle 1 part comprising a metal sheet, wherein the metal sheet is shaped after prior coating with a surface covering capable of acting as a mechanical bonding interface with a thermoplastic material.
  • the surface covering coated on the sheet makes it possible to protect the part or a portion of said part against corrosion.
  • the surface covering is constituted by a material that is reactivatable, preferably by applying heat.
  • the material reacts only above a certain temperature, such as the temperature at which the thermoplastic material of the member is injected, thereby enabling the metal sheet to be shaped without the surface covering becoming bonded to the shaping tools.
  • thermoplastic material constituting a member can be applied thereto in two ways. Either the thermoplastic material for constituting a member is overmolded onto the pre-coated sheet, with the surface covering then acting as a bonding interface. Otherwise, the surface covering is reactivated and a member made of a thermoplastic material is applied thereto with the surface covering acting as a bonding interface.
  • an area of the metal sheet coated with the surface covering is not covered by the member made of thermoplastic material, and is referred to as a free area.
  • This free area can serve as a bonding interface for some component other than the member.
  • a member is used that is selected from at least one of the elements in the group constituted by: a lining, fastener means, reinforcing means, a soundproofing screen, means for docking the bodywork part, and a spacer.
  • the method defined by the invention makes it easy to hold in place: reinforcement, e.g. against vibration, noise, or heat; or fastener means for fastening the bodywork part to the vehicle, or a headlight to the bodywork part; all of which members can be fastened to the bodywork part at lower weight and lower cost.
  • the prior coating of the metal sheet with the surface covering is performed immediately after the metal sheet has itself been fabricated, e.g. in the form of sheet metal.
  • the pre-coated sheet metal is subsequently shaped, and the thermoplastic material of the member is applied to the shaped and pre-coated sheet metal in accordance with the invention.
  • a method of the invention may further comprise one or more of the following characteristics:
  • the present invention also provides a motor vehicle bodywork part obtained by implementing a method as defined above.
  • the bodywork part may be a fender, a door, a tailgate, a hood, or a roof.
  • FIG. 1 is an inside view of a motor vehicle fender in accordance with the invention
  • FIG. 2 is a section view of a motor vehicle fender in a second embodiment of the invention.
  • FIG. 3 is a front perspective view of a motor vehicle fender in a third embodiment of the invention.
  • FIG. 4 is a section of a motor vehicle fender in a fourth embodiment.
  • the bodywork part 10 shown in FIG. 1 is a motor vehicle front fender.
  • the fender 10 comprises a metal sheet 12 made by stamping sheet metal.
  • the fender 10 further comprises an example of a member of the invention, constituted in this case by a functional member 13 providing central reinforcement against vibration and noise, and made of a thermoplastic material such as polypropylene.
  • the sheet is covered with a surface covering 16 acting as a mechanical bonding interface with the reinforcement 13 .
  • the surface covering 16 also serves to provide the bodywork part 10 with anticorrosion protection, in full or in part.
  • the surface covering 16 is made of a material which presents the following characteristics:
  • the metal sheet 12 and the reinforcement 13 are assembled together as follows.
  • a first step at least the entire inside surface of the metal sheet is pre-coated with the surface covering 16 . This first step is performed as soon as the sheet metal has been fabricated, prior to it being sold.
  • the sheet 12 pre-coated in the covering 16 is cut and shaped by stamping or folding so as to take on the shape shown in FIG. 1 .
  • the sheet metal as prepared in this way is placed in a mold into which polypropylene is injected so as to form the reinforcement 13 .
  • the polypropylene is injected at a temperature that is relatively high so as to ensure that it is liquid. This temperature is also high enough to cause the material constituting the interface layer 16 to react.
  • the material of the structure covering 16 includes polypropylene, it is compatible with the polypropylene that is injected to mold the reinforcement 13 .
  • a bodywork part is obtained in which the interface layer 16 and the injected thermoplastic material have melted so as to provide a continuous bond between the plastics material of the reinforcement 13 and the metal sheet 12 .
  • the surface covering 16 is itself covered, prior to overmolding, by a film of polypropylene, so as to enhance bonding with the polypropylene constituting the functional member 13 .
  • the functional member 13 shown in FIG. 1 is a piece of central reinforcement against vibration and noise. Nevertheless, it is possible to apply other types of members to the fender 10 .
  • the member may constitute means for fastening a separate part applied to the fender 10 ; internal reinforcing means, possibly ribs, against vibration, noise, or heat; a screen against sound or heat; means for docking the fender 10 with some other bodywork part, for example a wheel arch or a bumper; spacer means, optionally fusible spacer means, for controlling bodywork clearances; means for positioning a headlight glass relative to the bodywork part; or indeed means for fastening a headlight to the bodywork part.
  • FIGS. 2 to 4 Examples of functional members can be seen in FIGS. 2 to 4 .
  • the fender 10 comprises docking means 22 for a wheel arch, and fastener means 24 for fastening the top of the fender to the structure of the vehicle so that the fender 10 is put into a reference position relative to the vehicle hood.
  • the front portion of the fender 10 that is to come into contact with the vehicle headlight includes means 26 for putting a headlight into a reference position relative to the fender 10 , docking means 28 for engaging the bumper relative to the fender 10 , and fastener means 30 for fastening the fender 10 to the vehicle structure.
  • the fender 10 may include fastener means for engaging a front pillar of the vehicle, so as to bring into alignment with a front door of the vehicle.
  • a method of the invention has the advantage of reducing the cost of fabricating the part. Since functional members made of plastics material can be applied easily, the metal sheet 12 of the bodywork part performs essentially an esthetic function, giving an impression of quality, strength, and an appearance that is specific to metal. Consequently, the prepared module comprising the bodywork part and its members is lighter in weight and also less expensive since the plastics material used is functional and does not contribute to appearance, so it is therefore less specific and less expensive.
  • a single part can be obtained in the form of a fender provided with docking means and reinforcing means improving stiffness thereon and on which it is easy to integrate other functions, while nevertheless reducing the overall weight of the fitted bodywork part.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Laminated Bodies (AREA)
US11/027,016 2004-01-02 2004-12-30 Procede de fabrication d'une piece de carrosserie de vehicule automobile, piece de carrosserie Abandoned US20050257362A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR0400013A FR2864815B1 (fr) 2004-01-02 2004-01-02 Procede de fabrication d'une piece de structure de vehicule automobile, piece de structure, traverse de face avant technique et poutre de pare-chocs
FR0400013 2004-01-02
FR0401488A FR2864816B1 (fr) 2004-01-02 2004-02-13 Procede de fabrication d'une piece de carrosserie de vehicule automobile, piece de carrosserie
FR0401488 2004-02-13

Publications (1)

Publication Number Publication Date
US20050257362A1 true US20050257362A1 (en) 2005-11-24

Family

ID=34575718

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/027,016 Abandoned US20050257362A1 (en) 2004-01-02 2004-12-30 Procede de fabrication d'une piece de carrosserie de vehicule automobile, piece de carrosserie

Country Status (5)

Country Link
US (1) US20050257362A1 (fr)
EP (1) EP1550603B2 (fr)
DE (1) DE602004019626D1 (fr)
ES (1) ES2323064T5 (fr)
FR (1) FR2864816B1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2083130A1 (fr) * 2008-01-15 2009-07-29 Borit leichtbau-Technik GmbH Méthode pour la production d'un panneau composite avec des protubérances
CN102294433A (zh) * 2010-06-22 2011-12-28 鑫鸿交通工业（安徽）有限公司 汽车叶子板的制造方法及用于该方法中的模具
USD832753S1 (en) * 2017-03-22 2018-11-06 Ningbo Geely Automobile Research & Development Co., Ltd. Fender for a vehicle
USD832752S1 (en) * 2016-12-13 2018-11-06 GM Global Technology Operations LLC Vehicle front fender
WO2019028608A1 (fr) * 2017-08-07 2019-02-14 Psa Automobiles Sa Structure latérale de carrosserie avant de véhicule
USD855528S1 (en) * 2017-03-01 2019-08-06 Aston Martin Lagonda Limited Vent and diffuser for vehicle or replica thereof
USD865597S1 (en) * 2017-07-11 2019-11-05 Bayerische Motoren Werke Aktiengesellschaft Front fender for a vehicle
USD867246S1 (en) * 2017-09-06 2019-11-19 Fca Us Llc Fender wing assembly
USD916634S1 (en) * 2020-08-07 2021-04-20 Siya Chen Car fender
USD925421S1 (en) * 2018-10-03 2021-07-20 Bodyguard Products LLC Fender flare
USD1029704S1 (en) 2021-10-19 2024-06-04 Aston Martin Lagonda Limited Grille for automobile or replica thereof
USD1037072S1 (en) 2021-06-29 2024-07-30 Aston Martin Lagonda Limited Automobile grille and/or replica
USD1038835S1 (en) 2021-11-22 2024-08-13 Aston Martin Lagonda Limited Automobile body and/or replica

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109664947A (zh) * 2019-02-21 2019-04-23 南通益颖机械科技有限公司 一种车用挡泥板生产工艺
CN111468603A (zh) * 2020-04-01 2020-07-31 一汽奔腾轿车有限公司 一种带充电口的翼子板工艺

Citations (4)

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Publication number Priority date Publication date Assignee Title
US4460429A (en) * 1982-08-25 1984-07-17 The D. L. Auld Company Apparatus for manufacturing foil shapes having a cast plastic cap
US20030087075A1 (en) * 2001-11-06 2003-05-08 Northern Engraving Corporation Method of manufacturing multiple levels of automobile trim
US20040070113A1 (en) * 2000-06-21 2004-04-15 Alfred Ilse Method for production of a hybrid component
US20040106345A1 (en) * 2002-11-29 2004-06-03 Zafiroglu Dimitri Peter Textured composite material

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DE3839855A1 (de) † 1988-11-25 1990-05-31 Bayer Ag Leichtbauteil
DE19543324A1 (de) † 1995-11-21 1997-05-22 Bayer Ag Vorrichtung und Verfahren zur Herstellung von Kunststoff-/Metall-Verbundplatten
US6068424A (en) * 1998-02-04 2000-05-30 Henkel Corporation Three dimensional composite joint reinforcement for an automotive vehicle
DE60008220T2 (de) † 1999-03-23 2004-07-08 Rhodia Engineering Plastics S.A. Verbundgegenstände mit einem starren teil und einem teil aus thermoplastischem material, und herstellungsverfahren
FR2793438A1 (fr) * 1999-05-11 2000-11-17 Rhodia Engineering Plastics Sa Article manufacture rigide comportant un renfort thermoplastique allege
DE19934545C1 (de) * 1999-07-22 2001-03-08 Benteler Werke Ag Verfahren zur Herstellung eines Hybridbauteils im Metall/Kunststoffverbund
US6421979B1 (en) * 1999-09-16 2002-07-23 Basf Aktiengesellschaft Composite constructional element
DE10112688A1 (de) * 2001-03-16 2002-09-26 Sika Ag, Vormals Kaspar Winkler & Co Vorrichtung zur Verstärkung eines Hohlteils eines Fahrzeugs
DE10211734A1 (de) * 2002-03-14 2003-10-02 Arvinmeritor Gmbh Verbundbauteil, insbesondere Fahrzeuganbauteil oder Fahrzeugpaneel
DE10346097A1 (de) † 2003-10-04 2005-05-04 Rehau Ag & Co Verfahren zur Herstellung eines Verbundbauteils sowie hiermit hergestelltes Verbundbauteil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460429A (en) * 1982-08-25 1984-07-17 The D. L. Auld Company Apparatus for manufacturing foil shapes having a cast plastic cap
US20040070113A1 (en) * 2000-06-21 2004-04-15 Alfred Ilse Method for production of a hybrid component
US20030087075A1 (en) * 2001-11-06 2003-05-08 Northern Engraving Corporation Method of manufacturing multiple levels of automobile trim
US20040106345A1 (en) * 2002-11-29 2004-06-03 Zafiroglu Dimitri Peter Textured composite material

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2083130A1 (fr) * 2008-01-15 2009-07-29 Borit leichtbau-Technik GmbH Méthode pour la production d'un panneau composite avec des protubérances
CN102294433A (zh) * 2010-06-22 2011-12-28 鑫鸿交通工业（安徽）有限公司 汽车叶子板的制造方法及用于该方法中的模具
USD832752S1 (en) * 2016-12-13 2018-11-06 GM Global Technology Operations LLC Vehicle front fender
USD855528S1 (en) * 2017-03-01 2019-08-06 Aston Martin Lagonda Limited Vent and diffuser for vehicle or replica thereof
USD832753S1 (en) * 2017-03-22 2018-11-06 Ningbo Geely Automobile Research & Development Co., Ltd. Fender for a vehicle
USD865597S1 (en) * 2017-07-11 2019-11-05 Bayerische Motoren Werke Aktiengesellschaft Front fender for a vehicle
WO2019028608A1 (fr) * 2017-08-07 2019-02-14 Psa Automobiles Sa Structure latérale de carrosserie avant de véhicule
USD867246S1 (en) * 2017-09-06 2019-11-19 Fca Us Llc Fender wing assembly
USD925421S1 (en) * 2018-10-03 2021-07-20 Bodyguard Products LLC Fender flare
USD916634S1 (en) * 2020-08-07 2021-04-20 Siya Chen Car fender
USD1037072S1 (en) 2021-06-29 2024-07-30 Aston Martin Lagonda Limited Automobile grille and/or replica
USD1029704S1 (en) 2021-10-19 2024-06-04 Aston Martin Lagonda Limited Grille for automobile or replica thereof
USD1038835S1 (en) 2021-11-22 2024-08-13 Aston Martin Lagonda Limited Automobile body and/or replica

Also Published As

Publication number Publication date
FR2864816A1 (fr) 2005-07-08
FR2864816B1 (fr) 2006-04-14
ES2323064T3 (es) 2009-07-06
EP1550603B2 (fr) 2016-03-23
ES2323064T5 (es) 2016-07-08
DE602004019626D1 (de) 2009-04-09
EP1550603B1 (fr) 2009-02-25
EP1550603A1 (fr) 2005-07-06

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Owner name: COMPAGNIE PLASTIC OMNIUM, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ANDRE, GERALD;BONNEAU, ERIC;CHERON, HUGUES;AND OTHERS;REEL/FRAME:016314/0971;SIGNING DATES FROM 20050531 TO 20050601

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION