DE102009031838A1 - Support structure for motor vehicle body, has component connected with another component by mechanical joining element, where components are formed as support parts and include respective flange areas - Google Patents

Support structure for motor vehicle body, has component connected with another component by mechanical joining element, where components are formed as support parts and include respective flange areas Download PDF

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Publication number
DE102009031838A1
DE102009031838A1 DE102009031838A DE102009031838A DE102009031838A1 DE 102009031838 A1 DE102009031838 A1 DE 102009031838A1 DE 102009031838 A DE102009031838 A DE 102009031838A DE 102009031838 A DE102009031838 A DE 102009031838A DE 102009031838 A1 DE102009031838 A1 DE 102009031838A1
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Prior art keywords
components
joining element
component
mechanical joining
vehicle body
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DE102009031838A
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German (de)
Inventor
Andreas Winkler
Markus Volkmer
Jan Lohmann
Karl Dr. Durst
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Audi AG
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Audi AG
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Priority to DE102009031838A priority Critical patent/DE102009031838A1/en
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    • 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
    • B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
    • B62D29/048—Connections therefor, e.g. joints
    • 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
    • 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
    • B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
    • B62D29/046—Combined superstructure and frame, i.e. monocoque constructions
    • 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
    • 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
    • B29C65/562—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using extra joining elements, i.e. which are not integral with 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
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—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
    • B29C66/40—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
    • 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
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular 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
    • B29C66/72—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

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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)
  • Connection Of Plates (AREA)
  • Body Structure For Vehicles (AREA)
  • Insertion Pins And Rivets (AREA)

Abstract

The structure (10) has a component connected with another component by a mechanical joining element e.g. hollow punching rivet, flange rivet, blind rivet or two-piece joining element. The components are formed as support parts (12, 14), and include respective flange areas (16, 18) in which the components are glued. The components are made of long-fiber-reinforced plastic e.g. carbon fiber reinforced plastic.

Description

Die Erfindung betrifft ein Trägerteil für eine Karosserie.The The invention relates to a carrier part for a body.

Im Kraftwagenbau ist es bislang üblich, Trägerteile für Karosserien in der so genannten Schalenbauweise aufzubauen. Hierbei werden halbschalenförmige Bauteile aus Blech an jeweiligen Flanschbereichen miteinander verschweißt, so dass man Hohlprofile erhält. Solche metallische Trägerteile zeichnen sich durch gute Belastbarkeit und hohe Steifigkeit aus, besitzen jedoch ein relativ hohes Gewicht. Während bei Verkleidungsteilen, die keine oder nur geringe tragende Funktion übernehmen, heutzutage bereits häufig auf nichtmetallische Materialien zurückgegriffen wird, konnte das Gewicht von Trägerteilen für Kraftwagenkarosserien bislang in der Regel nur durch die Verwendung von Leichtmetallen wie Aluminium oder Magnesium gesenkt werden.in the Motorcar construction has been customary so far support parts for bodies build in the so-called shell construction. Here are half-shell-shaped components made of sheet metal welded to each other at flange portions, so that one receives hollow profiles. Such metallic support parts are characterized by good resilience and high rigidity, However, they have a relatively high weight. While with trim parts, which take little or no supporting function, already today often on non-metallic materials, the Weight of support parts for car bodies so far usually only by the use of light metals such as aluminum or magnesium can be lowered.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Trägerteil der eingangs genannten Art bereitzustellen, welches eine hohe Festigkeit mit einem geringen Eigengewicht kombiniert.Of the present invention is based on the object, a support member to provide the type mentioned, which has a high strength combined with a low weight.

Diese Aufgabe wird durch ein Trägerteil mit den Merkmalen des Patentanspruchs 1 gelöst.These Task is by a carrier part solved with the features of claim 1.

Ein solches Trägerteil für eine Kraftwagenkarosserie umfasst ein erstes Bauteil aus einem Faserverbundwerkstoff, welches mit einem zweiten Bauteil aus einem Faserverbundwerkstoff verklebt und durch wenigstens ein mechanisches Fügeelement verbunden ist. Bei Faserverbundwerkstoffen handelt es sich um Kunststoffe, die durch eingelegte Fasern, wie beispielsweise Kohlefasern, Glasfasern, Aramidfasern oder dergleichen, verstärkt sind. Sie zeichnen sich durch hohe Zugfestigkeit in Faserrichtung bei extrem geringem Eigengewicht aus. Darüber hinaus weisen sie eine hervorragende Biegesteifigkeit auf, die durch entsprechende Orientierung der Fasern zusätzlich an die zu erwartenden Belastungen angepasst werden kann. Durch die Kombination des Verklebens der beiden Bauteile mit der Verbindung durch wenigstens ein mechanisches Fügeelement wird weiterhin ein hervorragender Zusammenhalt der beiden Bauteile sowohl unter Scherbelastungen als auch unter Zugbelastungen erzielt. So können übliche Karosseriegestaltungen aus dem Metallbau übernommen und unmittelbar auf die Verwendung von Faserverbundwerkstoffen übertragen werden.One such carrier part for one Motor vehicle body comprises a first component made of a fiber composite material, which with a second component made of a fiber composite material glued and connected by at least one mechanical joining element. at Fiber composites are plastics that are characterized by pickled fibers, such as carbon fibers, glass fibers, aramid fibers or like, reinforced are. They are characterized by high tensile strength in the fiber direction at extremely low dead weight. In addition, they have one excellent flexural rigidity due to appropriate orientation the fibers in addition can be adapted to the expected loads. By the Combination of the bonding of the two components with the connection By at least one mechanical joining element will continue to be an excellent Cohesion of the two components both under shear loads as also achieved under tensile loads. So can usual body designs taken from the metal construction and directly transferred to the use of fiber composites become.

Bevorzugt weisen die Bauteile wenigstens einen jeweiligen Flanschbereich auf, in welchem sie miteinander verklebt und mittels des wenigstens einen mechanischen Fügeelements verbunden sind. Damit wird ein Trägerteil geschaffen, welches in seiner Formgebung einem bekannten metallischen Trägerteil für Schalenbauweise entspricht, dabei jedoch ein wesentlich geringeres Eigengewicht aufweist. Auch die Kombination von einem ersten Bauteil, welches an wenigstens einem Flanschbereich mit einem flächig ausgebildeten zweiten Bauteil verbunden wird, ist möglich. So können beispielsweise ganze Seitenwandteile aus Faserverbundkunststoffen gefertigt werden und mit einzelnen Verstärkungsschalen, beispielsweise in den Säulenbereichen verstärkt werden.Prefers the components have at least one respective flange area, in which they are glued together and by means of at least one mechanical joining element are connected. This creates a carrier part which in its shape a known metallic carrier part for shell construction corresponds, but a much lower weight having. Also, the combination of a first component, which on at least one flange region with a flat second Component is connected is possible. So can for example, entire side wall parts made of fiber composite plastics be manufactured and with individual reinforcing shells, for example in the column areas be strengthened.

Die Bauteile sind bevorzugterweise aus einem langfaserverstärkten Kunststoff, vorzugsweise aus einem kohlefaserverstärkten Kunststoff, ausgebildet. Bei langfaserverstärkten Kunststoffen ist eine besonders gute Anpassung der lokalen Materialeigenschaften an die im Betrieb des Bauteils zu erwartenden Belastungen möglich. Es kann nämlich gezielt die Orientierung der Langfasern bei der Herstellung des Bauteils festgelegt werden. Die Fasern werden dabei so vororientiert, dass ihre Ausrichtung den im Bauteil während seines Betriebs verlaufenden Kraftlinien entspricht.The Components are preferably made of a long fiber reinforced plastic, preferably made of a carbon fiber reinforced plastic. For long fiber reinforced Plastics is a particularly good adaptation of the local material properties possible to the expected during operation of the component loads. It can namely specifically the orientation of the long fibers in the production of the Be set component. The fibers are thereby pre-oriented, that their orientation is the force lines running in the component during its operation equivalent.

Als mechanisches Fügeelement zum Verbinden der beiden Bauteile werden bevorzugt Hohlstanznieten, Bördelnieten, Blindnieten oder dergleichen verwendet. Durch derartige Fügeelemente werden besonders feste, nicht lösbare Verbindungen geschaffen, wobei der Herstellungsprozess besonders einfach automatisierbar ist. Besonders effizient ist hier die Verwendung von Stanznieten, da kein vorheriges Lochen der Bauteile notwendig ist. Beim Stanznieten wird die Öffnung im Bauteil vielmehr durch den Stanzniet selbst erzeugt. Damit entfallen Arbeitsschritte, was die Herstellung derartiger Trägerteile verbilligt.When mechanical joining element For connecting the two components are preferably hollow punch rivets, Bördelnieten, Blind rivets or the like used. By such joining elements become especially solid, not solvable Created connections, the production process is particularly simple can be automated. Particularly efficient here is the use of punch rivets, since no prior punching of the components necessary is. When punching rivets, the opening in the component rather generated by the punch rivet itself. This accounts Work steps, which makes the production of such support parts cheaper.

Im Folgenden wird die Erfindung anhand der Zeichnung näher erläutert. Hierbei zeigen:in the The invention will be explained in more detail with reference to the drawing. in this connection demonstrate:

1 eine Schnittdarstellung durch ein Ausführungsbeispiel eines erfindungsgemäßen Trägerteils und 1 a sectional view through an embodiment of a carrier part according to the invention and

2a bis c unterschiedliche mechanische Fügeelemente zur Verwendung in erfindungsgemäßen Trägerteilen. 2a to c different mechanical joining elements for use in carrier parts according to the invention.

Ein insgesamt mit 10 bezeichnetes Trägerteil für eine Kraftwagenkarosserie umfasst zwei Trägerteile 12, 14, welche jeweils aus einem Faserverbundwerkstoff bestehen. Zwischen einem Flanschbereich 16 des ersten Trägerteils 12 und einem Flanschbereich 18 des zweiten Trägerteils 14 ist eine Klebstoffschicht 20 eingebracht, die die Bauteile 12, 14 miteinander verklebt. Um der Verbindung zusätzliche Festigkeit zu verleihen, sind an den mit den Pfeilen 22 markierten Positionen im Flanschbereich 16, 18 zusätzliche mechanische Fügeelemente vorgesehen.A total with 10 designated carrier part for a motor vehicle body comprises two carrier parts 12 . 14 , which each consist of a fiber composite material. Between a flange area 16 of the first carrier part 12 and a flange area 18 the second carrier part 14 is an adhesive layer 20 introduced the components 12 . 14 glued together. To give the compound extra strength, are at the with the arrows 22 marked positions in the flange area 16 . 18 provided additional mechanical joining elements.

Die 2 zeigt unterschiedliche Ausführungsbeispiele dieser mechanischen Fügeelemente 24, 26, 28, welche Verwendung in unterschiedlichen Varianten von erfindungsgemäßen Trägerteilen finden können.The 2 shows different embodiments of these mechanical joining elements 24 . 26 . 28 which can find use in different variants of carrier parts according to the invention.

Es kann sich beispielsweise um Blindniete 24, wie in 2a gezeigt, oder Bördelniete 26, wie in 2b gezeigt, handeln.For example, it can be blind rivets 24 , as in 2a shown or curling rivets 26 , as in 2 B shown, act.

Auch die Verwendung von zweiteiligen Fügeelementen, wie in 2c dargestellt, ist möglich. Diese weisen einen Kopf 30 auf, der direkt mit einem Schaft 32 verbunden ist, der eine Aufnahmeöffnung 34 in den Werkstoffen 12, 14 durchdringt. Auf der dem Kopf 30 gegenüberliegenden Seite wird der Niet 28 nicht unmittelbar durch einen umgeformten Bereich des Schafts 32 am Bauteil 14 gehalten, wie dies bei den Blindnieten 24 oder Bördelnieten 26 der Fall ist. Vielmehr ist ein Gegenhalter 36 vorgesehen, welcher ebenfalls vom Schaft 32 durchdrungen wird und von einem umgeformten Schaftbereich 38 beim Setzen des Niets an das Bauteil 14 angepresst wird. Besonders vorteilhaft ist die Verwendung von Stanznieten, da hier die Flanschbereiche 16,18 der Bauteile 12,14 nicht vorgelocht werden müssen.Also, the use of two-piece joining elements, as in 2c shown is possible. These have a head 30 on that directly with a shaft 32 is connected, which has a receiving opening 34 in the materials 12 . 14 penetrates. On the head 30 opposite side is the rivet 28 not directly through a reshaped area of the shaft 32 on the component 14 held, as with the blind rivets 24 or flaring rivets 26 the case is. Rather, it is an opponent 36 provided, which also from the shaft 32 is penetrated and of a reshaped shaft area 38 when setting the rivet to the component 14 is pressed. Particularly advantageous is the use of punch rivets, since here the flange areas 16 . 18 of the components 12 . 14 do not have to be pre-punched.

Trägerteile 10 können aufgrund der hervorragenden Festigkeit von faserverstärkten Kunststoffen die bislang üblichen Blechschalen im Karosseriebau weitestgehend ersetzen. Aufgrund der hohen Beanspruchbarkeit der Verbindung zwischen dem Bauteil 12 und 14 sowohl gegen Scherung als auch gegen Zug, die sich aus der Kombination von Kleben und mechanischem Fügen ergibt, kann die aus dem Metallbau bekannte Schalenbauweise auch bei der Verwendung von Faserverbundwerkstoffen Anwendung finden. Das Herstellen von Hohlprofilen aus zwei Halbschalen 12, 14 ist zudem wesentlich kostengünstiger als die Herstellung von einteiligen Hohlprofilbauteilen. Gleichzeitig ermöglicht die Verwendung von schalenförmigen Bauteilen 12, 14 eine nahezu beliebige Anordnung der Fasern im Kunststoffgrundkörper der Bauteile 12, 14, was bei durch Extrusion oder Pultrusion hergestellten Hohlprofilen nicht möglich ist. Die Lage der Verstärkungsfasern kann daher optimal auf den jeweils zu erwartenden Kraftfluss eingestellt werden, so dass sich besonders belastbare Bauteile ergeben.support parts 10 Due to the excellent strength of fiber-reinforced plastics, they can largely replace the hitherto customary sheet metal shells in vehicle body construction. Due to the high strength of the connection between the component 12 and 14 Both shearing and tensile strength resulting from the combination of gluing and mechanical joining, the shell construction known from the metal construction can also be found in the use of fiber composites application. The production of hollow profiles from two half-shells 12 . 14 is also much cheaper than the production of one-piece hollow profile components. At the same time allows the use of shell-shaped components 12 . 14 an almost arbitrary arrangement of the fibers in the plastic body of the components 12 . 14 , which is not possible with hollow profiles produced by extrusion or pultrusion. The position of the reinforcing fibers can therefore be optimally adjusted to the respective expected power flow, so that result in particularly resilient components.

Claims (5)

Trägerteil (10) für eine Kraftwagenkarosserie mit einem ersten Bauteil (12) aus einem Faserverbundwerkstoff, welches mit einem zweiten Bauteil (14) aus einem Faserverbundwerkstoff verklebt und durch wenigstens ein mechanisches Fügeelement (24, 26, 28) verbunden ist.Carrier part ( 10 ) for a motor vehicle body with a first component ( 12 ) of a fiber composite material, which with a second component ( 14 ) bonded from a fiber composite material and by at least one mechanical joining element ( 24 . 26 . 28 ) connected is. Trägerteil (10) nach Anspruch 1, dadurch gekennzeichnet, dass das erste (12) und/oder das zweite Bauteil (14) schalenartig ausgebildet ist.Carrier part ( 10 ) according to claim 1, characterized in that the first ( 12 ) and / or the second component ( 14 ) is formed like a shell. Trägerteil (10) nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Bauteile (12, 14) wenigstens einen jeweiligen Flanschbereich (16, 18) aufweisen, in welchem sie miteinander verklebt und mittels des wenigstens einen mechanischen Fügeelements (24, 26, 28) verbunden sind.Carrier part ( 10 ) according to one of claims 1 or 2, characterized in that the components ( 12 . 14 ) at least one respective flange area ( 16 . 18 ) in which they are glued together and by means of the at least one mechanical joining element ( 24 . 26 . 28 ) are connected. Trägerteil (10) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Bauteile (12, 14) aus einem langfaserverstärkten Kunststoff, vorzugsweise aus einem kohlefaserverstärkten Kunststoff, ausgebildet sind.Carrier part ( 10 ) according to one of claims 1 to 3, characterized in that the components ( 12 . 14 ) are formed from a long fiber reinforced plastic, preferably from a carbon fiber reinforced plastic. Trägerteil (10) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das mechanische Fügeelement (24, 26, 28) ein Hohlstanzniet, Bördelniet, Blindniet oder ein zweiteiliges Fügeelement ist.Carrier part ( 10 ) according to one of claims 1 to 4, characterized in that the mechanical joining element ( 24 . 26 . 28 ) is a hollow punch rivet, Bördelniet, blind rivet or a two-part joining element.
DE102009031838A 2009-07-03 2009-07-03 Support structure for motor vehicle body, has component connected with another component by mechanical joining element, where components are formed as support parts and include respective flange areas Withdrawn DE102009031838A1 (en)

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