EP3074299A1 - Procédé de fabrication d'un élément d'habillage extérieur pour pièce de carrosserie mobile et élément d'habillage extérieur correspondant pourvu d'un renforcement par moulage par injection arrière de plastique renforcé par des fibres - Google Patents

Procédé de fabrication d'un élément d'habillage extérieur pour pièce de carrosserie mobile et élément d'habillage extérieur correspondant pourvu d'un renforcement par moulage par injection arrière de plastique renforcé par des fibres

Info

Publication number
EP3074299A1
EP3074299A1 EP14809590.4A EP14809590A EP3074299A1 EP 3074299 A1 EP3074299 A1 EP 3074299A1 EP 14809590 A EP14809590 A EP 14809590A EP 3074299 A1 EP3074299 A1 EP 3074299A1
Authority
EP
European Patent Office
Prior art keywords
plastic
sheet metal
reinforcement
metal part
trim panel
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.)
Withdrawn
Application number
EP14809590.4A
Other languages
German (de)
English (en)
Inventor
Axel GRÜNEKLEE
Markus ZÖRNACK
Andreas KEUTZ
Jens WINIARZ
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.)
ThyssenKrupp Steel Europe AG
Original Assignee
ThyssenKrupp Steel Europe AG
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 ThyssenKrupp Steel Europe AG filed Critical ThyssenKrupp Steel Europe AG
Publication of EP3074299A1 publication Critical patent/EP3074299A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • B29C45/14811—Multilayered articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different 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
    • B62D25/08—Front or rear portions
    • B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/001—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles

Definitions

  • the invention relates to a method for producing a large-area outer cladding part for a movable body part of a motor vehicle, in particular for a door, front hood or tailgate of a passenger car, in which at least one large metal sheet metal part forming the outer cladding part is formed into a three-dimensional shape by means of a forming tool. wherein on the inside of the formed sheet metal part at least partially a reinforcement made of plastic is applied by injection molding. Furthermore, the invention relates to an outer covering part for a movable, large-area body part of a motor vehicle, in particular for a door, front hood or tailgate of a passenger car, formed from a large-area metallic sheet metal part according to the preamble of patent claim 9.
  • the large-scale outer skin components made of steel offer in this respect by reducing the thickness of a considerable weight reduction potential.
  • the conventional outer skin components in the roof, bonnet, tailgate and door have a sheet thickness in the range of 0.6 mm to 0.8 mm. If steel sheet with a sheet thickness of less than 0.6 mm is used for the outer skin of these body parts, the outer skin loses considerable rigidity and there is the so-called crack-frog effect, since the Beulsteifmaschine is partially no longer exist.
  • an exterior trim part for a body of a passenger car which has at least one outer panel forming large-area sheet metal part, on the inside of a sub-structure is arranged, which is arranged by at least partially of the sheet metal part
  • This exterior trim part is formed. This exterior trim part is formed.
  • CONFIRMATION COPY in particular, a fender, a side wall or bonnet.
  • the arranged on the inside of the outer trim part plastic structure, which may have intersecting plastic ribs is provided in particular to reinforce the large-area sheet metal part in correspondingly stiffened areas.
  • the plastic structure in the known exterior trim part is intended to replace a sheet metal substructure, which is joined to the weight reduction of large-area sheet metal parts such as bonnets via a welded or crimped connection with the exterior trim part.
  • DE 10 2010 014 541 AI proposes to inject the plastic structure in a forming tool to the sheet metal part formed there.
  • the forming tool for this purpose for example, slide parts are provided, which are moved after the last drawing stage of the sheet metal part so that subsequently in one and the same tool by injection molding the plastic structure can be created.
  • the present invention has for its object to provide a further method for producing a large-scale exterior trim part for a movable body part of a motor vehicle, in particular for a door, front hood or tailgate of a passenger car, with such an outer trim part in high quality as relatively light and nevertheless sufficiently low-bending and bulge-proof outer lining part can be produced cost-effectively. Furthermore, a corresponding outer lining part is to be created.
  • At least one outer trim part forming large-area metallic sheet metal part by means of a forming tool formed into a three-dimensional shape and then applied to the inside of the formed sheet metal part at least partially a reinforcement made of plastic by injection molding, wherein a sheet metal part with a sheet thickness of less than 0.60 mm, preferably less than 0.50 mm as sheet metal part , in particular less than 0.45 mm is used. Then, the formed and provided with the reinforcement sheet metal part by folding and / or gluing with a sheet metal and / or
  • the inner structure made of sheet metal and / or plastic gives the outer panel formed from a large sheet metal part a sufficiently high bending stiffness, while the sprayed onto the inside of the sheet metal part plastic the required BeulsteifIER of a sheet thickness of 0.15 mm to less than 0.6 mm ensuring the sheet metal part.
  • the sprayed onto the inside of the sheet metal part plastic also has a positive effect on the acoustic properties of the outer trim part.
  • the inside plastic coating of the thin sheet metal part its behavior under dynamic impact stress, e.g. the impact of a pedestrian on a inventively designed engine hood positively influenced.
  • An advantageous embodiment of the method according to the invention is that the deformed sheet metal part is back-injected outside the forming tool with plastic for producing the at least one reinforcement, the sheet metal part for this purpose fixed in a holder, for example a supporting device
  • the inventive method thus requires no costly change or redesign of forming tools for
  • brackets may preferably be arranged adjacent to the molding press.
  • a relatively high weight reduction of a large-scale outer lining part at the same time sufficient buckling stiffness can be achieved in particular if, according to a further embodiment of the method fiber-reinforced plastic for producing the at least one gain of
  • Sheet metal part is used.
  • glass fibers or carbon fibers may preferably be added to the plastic during the back-injection.
  • the injected to reinforce the formed sheet metal part on the inside plastic can, but need not necessarily be applied over the entire surface of the inside of the sheet metal part.
  • the plastic is applied only partially, in particular to the dent-critical points of the formed sheet metal part.
  • the plastic for producing the at least one reinforcement can be applied in particular locally as a single layer.
  • Embodiment of the method according to the invention provides that the plastic for the production of at least one gain is locally applied multi-layered.
  • the application of several layers of plastic is to reinforce particularly dent-critical points of advantage.
  • These layers can be formed from a same plastic, for example, locally to increase the thickness of the plastic reinforcement;
  • they can also be formed from different plastics or from plastics with and without reinforcing fibers.
  • one or more plastics are used to reinforce the large-area, relatively thin sheet metal part, which are suitable for a subsequent cathodic dip painting (KTL) of the sheet metal part.
  • the plastic used according to the invention may in particular be thermoplastic, preferably based on polyamide, polyethylene or mixtures thereof.
  • a further preferred embodiment of the method according to the invention provides that for the production of the at least one Reinforcing plastic is used, which has a durable temperature resistance of at least 120 ° C, preferably at least 150 ° C, particularly preferably at least 180 ° C.
  • a further embodiment of the method according to the invention is characterized in that the reinforcement made of plastic is specifically designed so that it replaces at least one serving as a reinforcement metallic component of the body part.
  • the reinforcement made of plastic is specifically designed so that it replaces at least one serving as a reinforcement metallic component of the body part.
  • targeted local reinforcement of the relatively thin sheet of the outer trim part is achieved that one or more otherwise serving as a reinforcement metallic components of the outer trim part can be saved, which in turn benefits the weight reduction and has a positive effect on the acoustic properties of the component.
  • it is provided in a door outer panel to save by a targeted plastic reinforcement in the area of the door parapet here a standard metallic door parapet reinforcement.
  • 1 is an external view of a three-dimensionally shaped vehicle door
  • Fig. 3 is a sketch of a process sequence according to the invention for producing a large-scale outer trim part for a movable mounted body part of a motor vehicle, in particular for a
  • Shown in Figures 1 and 2 are molded outer panels 1, a vehicle door.
  • the respective sheet metal part 1 has a sheet thickness of less than 0.6 mm, preferably less than 0.5 mm, for example of about 0.2 mm, and was made of a correspondingly thin metal plate, preferably a steel plate, by deep drawing.
  • the inside of the large-area sheet-metal part 1, is back-injected to its reinforcement and thus to increase its Beulsteifessor with plastic 2.1, 2.2, 2.3, 2.4 and / or 2.5.
  • the plastic used for this purpose may be a pure plastic, i. a plastic without reinforcing fibers.
  • plastics i. a plastic without reinforcing fibers.
  • fibers which are KTL-resistant, in particular thermoplastics, preferably based on PA, PE or mixtures thereof.
  • thermoplastics preferably based on PA, PE or mixtures thereof.
  • fibers but also fibers, e.g. Glass fibers, carbon fibers, etc., are added.
  • the inside plastic reinforcement of the thin sheet metal part 1, 1 ' may, but does not necessarily have to be executed over its entire surface.
  • the plastic reinforcement is made locally multi-layered at particularly dent-critical points of the thin sheet metal part 1, l'.
  • two, three or more plastic layers can be applied by injection-molding of the inside of the sheet-metal part 1, 1 '.
  • These layers can be made of a same plastic or different plastics, in particular
  • a relatively large-area plastic layer 2.1 is applied on the inner side of the sheet-metal part (outer door panel) 1 and several relatively small-area plastic layers 2.2, 2.3, 2.4 are applied by injection molding Particularly dent-critical points of the thin sheet metal part.
  • the present invention enables one or more metallic reinforcement members to be saved
  • a plastic reinforcement 2.5 is applied on the inside in the area of the door sill.
  • a local plastic reinforcement 2.5 may optionally be dispensed with a usually provided in the door metallic door parapet reinforcement.
  • the local plastic reinforcement 2.5 preferably has a multilayer layer structure.
  • the metal plate A having a thickness of between 0.15 mm and less than 0.6 mm, preferably a steel plate, sheet metal part 1 formed by deep-drawing is an outer skin component for a movably mounted body part.
  • a punch and a die of a forming tool are designated 3.1 and 3.2.
  • Outer skin component 1 is held fixed after deep drawing in a desired outer contour of the outer skin component corresponding holder 4 and on its inside with plastic 2 at predetermined locations in areas,
  • the application of the plastic 2 is preferably carried out by means of a robot 5.
  • the outer skin component eg outer door panel
  • the outer skin component in a conventional manner by folding, preferably using adhesive, with a sheet metal (eg steel) and / or Plastic-made inner structure 6 joined.
  • the thus assembled body part is mounted on the associated body body and performed with this for painting by a cathodic dip bath.
  • the plastic 2.1, 2.2, 2.3, 2.4 and / or 2.5 applied to the inside of the outer skin component 1, 1 ' also has an effect positive for the acoustic characteristics of the body part concerned. So can be dispensed with additional "antidrug mats" or heavy-layer mats, which in particular in a vehicle door a not insignificant
  • the pedestrian protection in particular with regard to a reduction of head impact injuries, can also be positively influenced by a suitable layer combination or thickness of the internally applied plastic coating.
  • a suitable layer combination or thickness of the internally applied plastic coating In order to obtain a good rating in pedestrian protection, it is currently required that between the hood and the underlying structure (body and motor) a distance of about 10 cm is held. However, this is due to the particular arrangement of some body parts, e.g. the spring legs and engine components, not always readily possible.
  • the impactor often experiences a secondary impact when it falls below said distance, so that the values for the so-called HIC (Head Injury Criterion) increase dramatically at such areas of the hood. In these areas, however, a suitable plastic injection molding of the hood outer panel, the secondary

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Superstructure Of Vehicle (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un élément d'habillage extérieur de grande surface destiné à une pièce de carrosserie mobile d'un véhicule automobile, en particulier une portière, un capot ou un hayon d'une voiture automobile particulière, selon lequel au moins une pièce de tôle métallique de grande surface formant l'élément d'habillage extérieur est déformée au moyen d'un outil à déformer en une forme en trois dimensions. Un renforcement (2.2, 2.3) en matière plastique est appliqué au moins partiellement sur la face intérieure de la pièce de tôle (1) déformée, par moulage par injection arrière. La pièce de tôle utilisée est une pièce de tôle qui a une épaisseur de moins de 0,6 mm, de préférence de moins de 0,5 mm. La pièce de tôle (1), déformée et pourvue du renforcement, est reliée par pliage et/ou collage à une structure intérieure (6) fabriquée à partir d'une tôle métallique et/ou de matière plastique. Le procédé de l'invention permet de fabriquer un tel élément d'habillage extérieur à faible coût et avec une qualité élevée sous la forme d'un élément d'habillage extérieur relativement léger tout étant suffisamment résistant à la déformation. L'invention concerne en outre un élément d'habillage extérieur correspondant.
EP14809590.4A 2013-11-29 2014-11-21 Procédé de fabrication d'un élément d'habillage extérieur pour pièce de carrosserie mobile et élément d'habillage extérieur correspondant pourvu d'un renforcement par moulage par injection arrière de plastique renforcé par des fibres Withdrawn EP3074299A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013113230.8A DE102013113230A1 (de) 2013-11-29 2013-11-29 Verfahren zur Herstellung eines Außenverkleidungsteils für ein bewegbares Karosserieteil sowie ein entsprechendes Außenverkleidungsteil
PCT/EP2014/003112 WO2015078567A1 (fr) 2013-11-29 2014-11-21 Procédé de fabrication d'un élément d'habillage extérieur pour pièce de carrosserie mobile et élément d'habillage extérieur correspondant pourvu d'un renforcement par moulage par injection arrière de plastique renforcé par des fibres

Publications (1)

Publication Number Publication Date
EP3074299A1 true EP3074299A1 (fr) 2016-10-05

Family

ID=52016560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14809590.4A Withdrawn EP3074299A1 (fr) 2013-11-29 2014-11-21 Procédé de fabrication d'un élément d'habillage extérieur pour pièce de carrosserie mobile et élément d'habillage extérieur correspondant pourvu d'un renforcement par moulage par injection arrière de plastique renforcé par des fibres

Country Status (6)

Country Link
US (1) US20170001670A1 (fr)
EP (1) EP3074299A1 (fr)
JP (1) JP2016538183A (fr)
CN (1) CN105793145B (fr)
DE (1) DE102013113230A1 (fr)
WO (1) WO2015078567A1 (fr)

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JP5959558B2 (ja) * 2014-03-13 2016-08-02 アイシン高丘株式会社 複合構造体及びその製造方法
CN106142599A (zh) * 2016-07-22 2016-11-23 山东理工大学 一种连续纤维增强热塑性预浸带制板材的模具及成型方法
CN109207867A (zh) * 2017-06-29 2019-01-15 宝山钢铁股份有限公司 一种冷轧退火双相钢、钢板及其制造方法
DE102017222652A1 (de) * 2017-12-13 2019-06-13 Bayerische Motoren Werke Aktiengesellschaft Faserverstärkte Fahrzeugkarosserie
DE102017222984A1 (de) * 2017-12-18 2019-06-19 Bayerische Motoren Werke Aktiengesellschaft Faserverstärktes Kunststoffbauteil mit Kunststoffschaumstruktur
DE102018210215B4 (de) * 2018-06-22 2022-02-03 Magna Exteriors Gmbh Verfahren zum Herstellen eines Kunststoffbauteils, sowie Kunststoffbauteil und Bearbeitungsanlage
US11243079B2 (en) 2019-01-02 2022-02-08 Kutztown University Of Pennsylvania Rotation sensing and magnetometry using localization on a ring shaped lattice
CN110154702A (zh) * 2019-06-05 2019-08-23 西南交通大学 一种增强补刚型轻量化车门及其制备方法
DE102021114962A1 (de) 2021-06-10 2022-12-15 Universität Siegen, Körperschaft des öffentlichen Rechts Fahrzeugtür in Hybridbauweise
DE102021121058A1 (de) 2021-08-13 2023-02-16 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Herstellen eines Verbundbauteils für ein Fahrzeug sowie Verbundbauteil für ein Fahrzeug

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Also Published As

Publication number Publication date
DE102013113230A1 (de) 2015-06-03
CN105793145A (zh) 2016-07-20
WO2015078567A1 (fr) 2015-06-04
US20170001670A1 (en) 2017-01-05
CN105793145B (zh) 2018-12-28
JP2016538183A (ja) 2016-12-08

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