DE102006036931A1 - Bonding connection between metal and carbon fiber composite parts for reinforcing outer sheet metal of a vehicle body, comprises fixing elements pre-installed at the composite part and welded with the metal part - Google Patents

Bonding connection between metal and carbon fiber composite parts for reinforcing outer sheet metal of a vehicle body, comprises fixing elements pre-installed at the composite part and welded with the metal part Download PDF

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Publication number
DE102006036931A1
DE102006036931A1 DE102006036931A DE102006036931A DE102006036931A1 DE 102006036931 A1 DE102006036931 A1 DE 102006036931A1 DE 102006036931 A DE102006036931 A DE 102006036931A DE 102006036931 A DE102006036931 A DE 102006036931A DE 102006036931 A1 DE102006036931 A1 DE 102006036931A1
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Prior art keywords
metal
fixing elements
plastic part
welded
fiber composite
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DE102006036931A
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DE102006036931B4 (en
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Michael Schillinger
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C09J5/06—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving heating of the applied adhesive
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/4835—Heat curing adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • 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
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • 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
    • B29C66/73—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
    • B29C66/73111—Thermal expansion coefficient
    • 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
    • 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
    • B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
    • 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
    • B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
    • B29K2305/08—Transition metals
    • B29K2305/12—Iron
    • 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
    • B29K2307/00—Use of elements other than metals as reinforcement
    • 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
    • B29L2031/3055—Cars
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/10—Presence of inorganic materials
    • C09J2400/16—Metal
    • C09J2400/163—Metal in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/22—Presence of unspecified polymer
    • C09J2400/226—Presence of unspecified polymer in the substrate

Abstract

The bonding connection between metal and carbon fiber composite parts for reinforcing outer sheet metal of vehicle body, comprises fixing elements (4) pre-installed at the fiber composite part (2) and welded with the metal part (1). The composite part is movably positioned in the interval of adhesive gap at the metal part up to hardening of adhesive layer (3) towards the surface extending of the composite part. The fixing elements for component positioning are corrosion protectably connected and adhered to the plastic part in the direction of the surface extending of the plastic part.

Description

Die Erfindung bezieht sich auf eine Fügeverbindung zwischen einem Metall- und einem mit diesem unter Wärmeeinwirkung lastübertragend verklebten Kunststoffteil, nach dem Oberbegriff des Patentanspruchs 1.The The invention relates to a joint connection between a Metal and one with this under heat load-transmitting bonded plastic part, according to the preamble of the claim 1.

Es ist bekannt ( DE 297 18 724 U1 ), das Außenblech einer Kraftfahrzeugkarosserie örtlich durch eine Faserverbundplatte in der Weise zu verstärken, dass die Faserverbundplatte durch nietförmige Fügeelemente, welche in entsprechende Durchgangsbohrungen der Faserverbundplatte eingesetzt und mit dem Außenblech verschweißt werden, form- und reibschlüssig mit dem Außenblech verbunden wird. Durch eine Erwärmung im Bereich der Schweißstellen wird die thermoplastische Faserverbundmatrix erweicht und dadurch die Schweißung korrosionshemmend versiegelt. Für eine ausreichend lastfeste Anbindung werden eine Vielzahl von Einzelnieten und eine dementsprechend hohe Anzahl von Durchgangsbohrungen in der Faserverbundplatte benötigt, was fertigungstechnisch aufwändig ist, vor allem aber eine deutliche Schwächung der Faserverbundstruktur zur Folge hat.It is known ( DE 297 18 724 U1 ), the outer panel of a motor vehicle body locally by a fiber composite plate in such a way to reinforce that the fiber composite plate by rivet-shaped joining elements which are inserted into corresponding through holes of the fiber composite plate and welded to the outer panel, is positively and frictionally connected to the outer panel. By heating in the area of the welds, the thermoplastic fiber composite matrix is softened, thereby sealing the weld in a corrosion-inhibiting manner. For a sufficiently load-resistant connection, a large number of individual rivets and a correspondingly high number of through holes are required in the fiber composite panel, which is complex in terms of production, but above all results in a significant weakening of the fiber composite structure.

Ferner ist aus der DE 198 00 035 A1 eine kombinierte Niet-Klebeverbindung zwischen einem Magnesiumblech und einem carbonfaserverstärkten Kunststoffteil bekannt. Problematisch ist dabei die Herstellung einer exakten Klebeverbindung in seriengerecht kurzen Taktzeiten.Furthermore, from the DE 198 00 035 A1 a combined rivet bond between a magnesium sheet and a carbon fiber reinforced plastic part known. The problem here is the production of an exact adhesive bond in series just short cycle times.

Aufgabe der Erfindung ist es, die Fügeverbindung der eingangs genannten Art so auszubilden, dass eine hochgradig lastfeste und formgenaue Anbindung des Kunststoff- am Metallteil auf fertigungstechnisch einfache, seriengerechte Weise erzielt wird.task The invention is the joint connection of the type mentioned above in such a way that a high grade load-resistant and dimensionally accurate connection of the plastic part to the metal part is achieved in production technology simple, production-standard manner.

Diese Aufgabe wird erfindungsggemäß durch eine Fügeverbindung mit den Merkmalen des Patentanspruchs 1 gelöst.These The object is achieved by the invention a joint connection solved with the features of claim 1.

Erfindungsgemäß werden die thermisch bedingten Dehnungsunterschiede zwischen dem Metall- und dem Kunststoffteil beim Warmhärten des Klebers durch das nach Größe und Richtung auf diese Wärmedehnungen begrenzte Bewegungsspiel an den zur Bauteilpositionierung vorgesehenen Fixierelementen ausgeglichen und eine weitgehend formstabile und positionsgenaue Bauteilverklebung mit einer definierten Klebeschichtdicke in für eine Serienfertigung erwünscht kurzen Taktzeiten erreicht.According to the invention the thermally induced expansion differences between the metal and the plastic part during the thermosetting of the adhesive through the according to size and direction on these thermal expansions limited movement at the intended for component positioning Fixing elements balanced and a largely dimensionally stable and positionally accurate component bonding with a defined adhesive layer thickness in for a series production desired reached short cycle times.

Bei größeren elektrischen Potenzialunterschieden zwischen den Bauteilen, vor allem bei einer Werkstoffpaarung Stahl-/carbonfaserverstärkter Kunststoff, empfiehlt es sich, die Fixierelemente bezüglich des Kunststoffteils korrosionsgeschützt auszubilden.at larger electrical Potential differences between the components, especially with a material pairing Steel / carbon fiber reinforced plastic, It is advisable to form the fixing elements with respect to the plastic part protected against corrosion.

Nach einer baulich besonders bevorzugten Ausgestaltung der Erfindung sind die Fixierelemente mit dem Kunststoffteil begrenzt beweglich, mit dem Metallteil hingegen fest verbunden, nämlich zweckmäßigerweise verschweißt. Dabei ist zwischen dem Kunststoffteil und den Fixierelementen entweder ein innerhalb der thermischen Dehnungsgrenzen freies Bewegungsspiel, vorzugsweise aber eine federelastische Verrastung vorgesehen.To a structurally particularly preferred embodiment of the invention the fixing elements are limitedly movable with the plastic part, with the metal part, however, firmly connected, namely expediently welded. It is between the plastic part and the fixing either a free movement within the thermal strain limits, but preferably provided a resilient latching.

Gemäß einer ersten Variante der Erfindung werden die Fixierelemente am Metallteil, also etwa der Kraftfahrzeug-Rohkarosserie, vormontiert und das Kunststoffteil wird in den üblichen Rohbauprozess eingeschleust, der Klebstoff aufgetragen und anschließend wird das Kunststoffteil an den Fixierelementen lagegerecht angebracht. Wahlweise werden die Fixierelemente in einem Vormontageschritt mit dem Kunststoffteil verbunden und anschließend im Rahmen eines üblichen Rohbauprozesses unter Zwischenlage des Klebstoffauftrags am Metallteil befestigt. Hierdurch wird eine besonders seriengünstige Herstellungsweise erzielt.According to one first variant of the invention, the fixing elements on the metal part, So about the motor vehicle body shell, pre-assembled and the plastic part will be in the usual Shell process is introduced, the adhesive is applied and then the plastic part attached to the fixing elements positionally. Optionally, the fixing in a pre-assembly step with connected to the plastic part and then in the context of a conventional Shell construction process with interposition of adhesive application on the metal part attached. As a result, a particularly low-production production is achieved.

Die Erfindung wird nunmehr anhand mehrerer Ausführungsbeispiele in Verbindung mit den Zeichnungen näher erläutert. Es zeigen in stark schematisierter Darstellung:The The invention will now be described with reference to several embodiments closer with the drawings explained. It shows in a highly schematic representation:

1 eine Fügeverbindung zwischen einem carbonfaserverstärkten Kunststoff- und einem Metallteil mit zwei unterschiedlich gestalteten Fixierelementen im Schnitt; und 1 a joint connection between a carbon fiber reinforced plastic and a metal part with two differently shaped fixing elements in section; and

2 eine der 1 entsprechende Darstellung einer erfindungsgemäßen Fügeverbindung mit zwei nochmals abgewandelten Fixierelementen. 2 one of the 1 corresponding representation of a joint connection according to the invention with two again modified fixing elements.

Die in den Fign. dargestellte Fügeverbindung enthält ein Metallteil 1, etwa das Stahl-Außenblech einer Kraftfahrzeug-Rohkarosserie, welches vollflächig mit einem carbonfaserverstärkten Kunststoffteil 2 lastübertragend verklebt ist. Aus Gründen kurzer Fertigungszeiten bei zugleich hoher Lastfestigkeit wird die Klebstoffschicht 3 unter Wärmeeinwirkung ausgehärtet.The in Figs. shown joint connection contains a metal part 1 , For example, the steel outer panel of a motor vehicle body shell, which over the entire surface with a carbon fiber reinforced plastic part 2 bonded load-transferring. For reasons of short production times at the same time high load resistance, the adhesive layer 3 cured under heat.

Das Metall- und das Kunststoffteil 1, 2 sind durch Fixierelemente 4 miteinander verbunden, die die beiden Bauteile 1, 2 bis zum Aushärten des Klebers lagegerecht aneinander positionieren, die Klebstoffschicht 3 auf eine definierte Schichtdicke festlegen und die unterschiedlichen Wärmedehnungen der Metall- und Kunststoffteile 1, 2 beim Warmhärtprozess ausgleichen und dadurch eine formgenaue Bauteilverklebung sicherstellen.The metal and the plastic part 1 . 2 are by fixing elements 4 connected to each other, which are the two components 1 . 2 until the adhesive has cured, position it in the correct position, the adhesive layer 3 set to a defined layer thickness and the different thermal expansions of the metal and plastic parts 1 . 2 during the heat-hardening process, thus ensuring a dimensionally accurate component bonding.

In den 1 und 2 sind die Fixierelemente 4 in verschiedenartigen Ausführungsformen dargestellt. So ist das in 1 gezeigte Fixierelement 4.1 nach Art eines Vollniets ausgebildet, der in einer Übermaßbohrung 5 des Kunststoffteils 2 mit einem in Richtung der Flächenerstreckung der Bauteile 1, 2 freien Bewegungsspiel p angeordnet ist, welches den thermischen Dehnungsunterschieden der Bauteile 1, 2 beim Wärmhärten der Klebstoffschicht 3 entspricht. Um Korrosionserscheinungen zwischen dem Carbonfaserverbundteil 3 und den Fixier elementen 4.1 zu unterbinden, sind diese entweder aus Edelstahl hergestellt oder – wie gezeigt – mit einer Korrosionsschutzschicht 6 auf Seiten des Kunststoffteils 3 belegt. Das Kunststoffteil 3 ist mit mindestens zwei dieser spielbehafteten Fixierelemente 4.1 bestückt, während ein weiteres Fixierelement 4.1 (nicht gezeigt) spielfrei mit dem Kunststoffteil 3 verbunden ist und somit einen Festpunkt im Wärmedehnungsausgleich zwischen den Bauteilen 1, 2 bildet.In the 1 and 2 are the fixing elements 4 shown in various embodiments. So that's in 1 shown fixing 4.1 trained in the manner of a full rivet, in an oversize bore 5 the plastic part 2 with one in the direction of the surface extension of the components 1 . 2 free movement p is arranged, which is the thermal expansion differences of the components 1 . 2 during thermosetting of the adhesive layer 3 equivalent. To corrosion phenomena between the carbon fiber composite part 3 and the fixing elements 4.1 To prevent these are either made of stainless steel or - as shown - with a corrosion protection layer 6 on the part of the plastic part 3 busy. The plastic part 3 is with at least two of these playful fixing 4.1 stocked while another fixing element 4.1 (not shown) play with the plastic part 3 is connected and thus a fixed point in the thermal expansion compensation between the components 1 . 2 forms.

Zur Herstellung der Fügeverbindung im Rahmen des Rohbauprozesses werden die Fixierelemente 4.1 am Kunststoffteil 2 vormontiert und anschließend wird die Klebstoffschicht 3 aufgetragen, woraufhin die Fixierelemente 4.1 mit dem Metallteil 1 punktverschweißt werden. Dabei wirken die unteren Flanschabschnitte 7 der Fixierelemente 4.1 als Abstandhalter, durch die eine definierte Klebeschichtdicke sichergestellt wird. Nach dem Warmhärten der Klebstoffschicht 3 sind die Bauteile 1, 2 lastfest miteinander verbunden und können weiterverarbeitet, z. B. tauchlackiert werden.For the production of the joint connection in the framework of the shell construction process, the fixing elements 4.1 on the plastic part 2 pre-assembled and then the adhesive layer 3 applied, whereupon the fixing elements 4.1 with the metal part 1 spot-welded. The lower flange sections act here 7 the fixing elements 4.1 as a spacer, which ensures a defined adhesive layer thickness. After the thermosetting of the adhesive layer 3 are the components 1 . 2 load-resistant connected and can be further processed, for. B. dip-coated.

Alternativ können die Fixierelemente 4 auch nach Art eines Clips gestaltet sein, wie dies in der rechten Figurenhälfte der 1 in Form des Fixierelements 4.2 dargestellt ist, welches aus einem das Kunststoffteil 2 umgreifenden Bügel 8, z. B. aus Edelstahl, besteht, der mit einem – bei 9 – korrosionshemmend beschichteten Zapfen 10 eine Durchgangsbohrung 11 des Kunststoffteils 2 durchgreift, und zwar wiederum engsitzend an einem der Fixierelemente 4.2 und mit einem zum Ausgleich der thermischen Dehnungsunterschiede erforderlichen Bewegungsspiel p in Richtung der Flächenerstreckung des Kunststoffteils 2 an den übrigen Fixierelementen 4.2. An seinem zwischen Metall- und Kunststoffteil 1, 2 angeordneten Bügelabschnitt 12 wirkt das Fixierelement 4.2 als Abstandhalter zur Sicherstellung einer definierten Klebeschichtdicke. Die Fixierelemente 4.2 werden ebenfalls wieder am Kunststoffteil 2 vormontiert und im Rahmen des Rohbauprozesses unter Zwischenlage des Klebstoffauftrags mit dem Metallteil 1 punktverschweißt.Alternatively, the fixing elements 4 be designed in the manner of a clip, as in the right half of the figure 1 in the form of the fixing element 4.2 is shown, which consists of a plastic part 2 embracing hanger 8th , z. B. stainless steel, which, with a - at 9 - corrosion-resistant coated pin 10 a through hole 11 the plastic part 2 engages, again tight sitting on one of the fixing 4.2 and with a required to compensate for the thermal expansion differences motion play p in the direction of the surface extension of the plastic part 2 at the other fixing elements 4.2 , At his between metal and plastic part 1 . 2 arranged bracket section 12 the fixing element acts 4.2 as a spacer to ensure a defined adhesive layer thickness. The fixing elements 4.2 will also be back on the plastic part 2 pre-assembled and as part of the shell construction process with interposition of the adhesive application with the metal part 1 spot-welded.

In 2, wo die der 1 entsprechenden Komponenten durch das gleiche Bezugszeichen gekennzeichnet sind, sind zwei weitere Fixiermöglichkeiten dargestellt. Die in der linken Figurenhälfte gezeigten Fixierelemente 4.3 sind als Stehbolzen mit einem erweiterten Flanschabschnitt 7 und elastischen Spreizfingern 13 gestaltet, die das Kunststoffteil 2 in der Einbaulage übergreifen. Einer der Stehbolzen 4.3 (nicht gezeigt) ist wiederum in einer engsitzenden Durchgangsbohrung des Kunststoffteils 2 angeordnet, während die übrigen Durchgangsbohrungen 5 des Kunststoffteils 2 als entsprechend den thermischen Dehnungsunterschieden der Bauteile 1, 2 erweiterte Übermaßbohrungen ausgebildet sind. Aus Korrosionsschutzgründen sind die Stehbolzen 4.3 aus Edelstahl gefertigt.In 2 where the the 1 corresponding components are identified by the same reference numeral, two more fixing options are shown. The fixing elements shown in the left half of the figure 4.3 are as stud bolts with an extended flange section 7 and elastic spreading fingers 13 designed the plastic part 2 overlap in the installation position. One of the studs 4.3 (not shown) is in turn in a tight-fitting through hole of the plastic part 2 arranged while the remaining through holes 5 the plastic part 2 as according to the thermal expansion differences of the components 1 . 2 extended oversize holes are formed. For corrosion protection reasons, the studs 4.3 made of stainless steel.

Zur Herstellung der Fügeverbindung im Rahmen des Rohbauprozesses werden die Stehbolzen 4.3 am Metallteil 1 punktverschweißt und anschließend wird die Klebstoffschicht 3 aufgetragen und das Kunststoffteil 2 an den Stehbolzen 4.3 verrastet. Dabei wirken die Flanschabschnitte 7 wiederum als Abstandhalter zur Sicherstellung einer definierten Klebeschichtdicke.For the production of the joint in the framework of the shell process, the studs 4.3 on the metal part 1 spot-welded and then the adhesive layer 3 applied and the plastic part 2 on the stud bolts 4.3 locked. The flange sections act here 7 again as a spacer to ensure a defined adhesive layer thickness.

Das Fixierelement 4.4 auf der rechten Figurenhälfte der 2 besteht aus einem in Richtung der Flächenerstreckung des Kunststoffteils 2 elastischen Federelement, an welchem das Kunststoffteil 2 in einem der Klebeschichtdicke entsprechenden Abstand zum Metallteil 1 in den Grenzen der thermischen Dehnungsunterschiede nachgiebig verrastet wird. Das Federelement 4.4 ist wiederum aus Edelstahl gefertigt oder korrosionshemmend beschichtet und wird am Metallteil 1 vormontiert, d. h. punktverschweißt. Im Rahmen des Rohbauprozesses wird dann die Klebstoffschicht 3 aufgetragen und das Kunststoffteil 2 an den Federelementen 4.4 befestigt, woraufhin die Klebstoffschicht 3 unter Wärmeeinwirkung ausgehärtet wird.The fixing element 4.4 on the right half of the figure 2 consists of a in the direction of the surface extension of the plastic part 2 elastic spring element on which the plastic part 2 in a distance corresponding to the adhesive layer thickness to the metal part 1 is resiliently locked in the limits of thermal expansion differences. The spring element 4.4 is again made of stainless steel or corrosion-resistant coated and is on the metal part 1 pre-assembled, ie spot-welded. As part of the shell process then the adhesive layer 3 applied and the plastic part 2 on the spring elements 4.4 attached, whereupon the adhesive layer 3 is cured under heat.

Claims (7)

Fügeverbindung zwischen einem Metall- und einem mit diesem unter Wärmeeinwirkung lastübertragend verklebten, beim Verkleben am Metallteil fixierten Kunststoff-, insbesondere Carbonfaserverbundbauteil, dadurch gekennzeichnet, dass das Kunststoffteil (2) im Abstand des Klebespalts am Metallteil (1) bis zum Aushärten der Klebstoffschicht (3) in Richtung der Flächenerstreckung des Kunststoffteils begrenzt beweglich positioniert ist.Joining connection between a metal and a heat-transfer-bonded with this under heat, when bonding to the metal part fixed plastic, in particular carbon fiber composite component, characterized in that the plastic part ( 2 ) at the distance of the adhesive gap on the metal part ( 1 ) until the adhesive layer ( 3 ) is limited movably positioned in the direction of the surface extension of the plastic part. Fügeverbindung nach Anspruch 1, dadurch gekennzeichnet, dass die zur Bauteilpositionierung vorgesehenen Fixierelemente (4) bezüglich des Kunststoffteils (2) korrosionsgeschützt sind.Joining connection according to Claim 1, characterized in that the fixing elements ( 4 ) with respect to the plastic part ( 2 ) are protected against corrosion. Fügeverbindung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die zur Bauteilpositionierung vorgesehenen Fixierelemente (4.1; 4.2; 4.3) in Richtung der Flächenerstreckung des Kunststoffteils (2) spielbehaftet mit diesem verbunden sind.Joining connection according to Claim 1 or 2, characterized in that the fixing elements ( 4.1 ; 4.2 ; 4.3 ) in the direction of the surface extension of the plastic part ( 2 ) are associated with this game. Fügeverbindung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die zur Bauteilpositionierung vorgesehenen Fixierelemente (4.4) in Richtung der Flächenerstreckung des Kunststoffteils (2) an diesem nachgiebig federverrastet sind.Joining connection according to Claim 1 or 2, characterized in that the fixing elements ( 4.4 ) in the direction of the surface extension of the plastic part ( 2 ) are spring-locked to this yielding. Fügeverbindung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Fixierelemente (4.3; 4.4) am Metallteil (1) vormontiert und das Kunststoffteil (2) nach dem Klebstoffauftrag mit den Fixierelementen verbunden ist (2).Joining connection according to one of the preceding claims, characterized in that the fixing elements ( 4.3 ; 4.4 ) on the metal part ( 1 ) and the plastic part ( 2 ) is connected after the adhesive application with the fixing elements ( 2 ). Fügeverbindung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Fixierelemente (4.1; 4.2) am Kunststoffteil (2) vormontiert und nach dem Klebstoffauftrag am Metallteil (1) befestigt sind (1).Joining connection according to one of claims 1 to 4, characterized in that the fixing elements ( 4.1 ; 4.2 ) on the plastic part ( 2 ) and after adhesive application to the metal part ( 1 ) are attached ( 1 ). Fügeverbindung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Fixierelemente (4) mit dem Metallteil (1) verschweißt sind.Joining connection according to one of the preceding claims, characterized in that the fixing elements ( 4 ) with the metal part ( 1 ) are welded.
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DE102010013089A1 (en) * 2010-03-26 2011-09-29 Benteler Automobiltechnik Gmbh Method for connecting fiber-reinforced plastic component with metallic base component of hybrid device in motor car, involves inserting connection bolt into through hole, and connecting connection bolt with base component by stud welding
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WO2015007480A1 (en) * 2013-07-18 2015-01-22 Bayerische Motoren Werke Aktiengesellschaft Adhesive aid and method for adhering components
CN103386593A (en) * 2013-07-18 2013-11-13 哈尔滨工业大学 Method for connecting carbon fiber reinforced resin-based composite material with metal
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CN105229316B (en) * 2013-07-18 2018-02-23 宝马股份公司 Bonding servicing unit and method for adhesive member
WO2015064182A1 (en) * 2013-10-30 2015-05-07 Toyota Jidosha Kabushiki Kaisha Fastening structure
DE102014105776A1 (en) 2014-04-24 2015-10-29 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Composite structure with two components of different material
DE102014107147A1 (en) 2014-05-21 2015-11-26 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Mounting part for a fiber composite component and arrangement of a fiber composite component, a mounting part and an attachment
DE102014107911A1 (en) 2014-06-05 2015-12-17 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Joining connection for forming a hybrid component and a method for producing a hybrid component
US10583629B2 (en) * 2015-02-06 2020-03-10 Kobe Steel, Ltd. Joining structure
DE102017220729A1 (en) * 2017-11-21 2019-05-23 Bayerische Motoren Werke Aktiengesellschaft Assembly and method of manufacturing the assembly
DE102019105420A1 (en) * 2019-03-04 2020-09-10 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Body structural component of a motor vehicle
WO2023088624A1 (en) * 2021-11-18 2023-05-25 Bayerische Motoren Werke Aktiengesellschaft Composite for external trim of a motor vehicle

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