WO2020030349A1 - Structural component for a motor vehicle - Google Patents

Structural component for a motor vehicle Download PDF

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Publication number
WO2020030349A1
WO2020030349A1 PCT/EP2019/067673 EP2019067673W WO2020030349A1 WO 2020030349 A1 WO2020030349 A1 WO 2020030349A1 EP 2019067673 W EP2019067673 W EP 2019067673W WO 2020030349 A1 WO2020030349 A1 WO 2020030349A1
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WO
WIPO (PCT)
Prior art keywords
structural component
fibers
component according
reinforcing fibers
profile
Prior art date
Application number
PCT/EP2019/067673
Other languages
German (de)
French (fr)
Inventor
Thomas Hogger
Sebastian Krull
Matthias Nagel
Octavian Knoll
Daniel Heim
Oleg Konrad
Original Assignee
Bayerische Motoren Werke Aktiengesellschaft
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 Bayerische Motoren Werke Aktiengesellschaft filed Critical Bayerische Motoren Werke Aktiengesellschaft
Publication of WO2020030349A1 publication Critical patent/WO2020030349A1/en

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Classifications

    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C45/14467—Joining articles or parts of a single article
    • 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
    • B29C45/14786—Fibrous material or fibre containing material, e.g. fibre mats or fibre reinforced material
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
    • 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
    • B29D99/0003—Producing profiled members, e.g. beams
    • B29D99/0007—Producing profiled members, e.g. beams having a variable cross-section
    • 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
    • B62D29/043—Superstructures
    • 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

Definitions

  • the invention relates to a structural component for a motor vehicle with at least one elongated profile made of fiber-reinforced plastic, which has a plastic matrix and reinforcing fibers embedded therein, and an injection-molded rib structure molded onto the profile.
  • Fiber-reinforced plastics have a high potential for lightweight construction and can absorb high tensile forces due to the incorporated fibers.
  • the weight-specific advantages of fiber-reinforced plastics can be best exploited if the fibers in the matrix material run along the load paths, which requires the component to be designed to withstand the load.
  • a structural component in a so-called skeleton construction is known from the generic DE 10 2013 219 820 A1, which is used as a body component, e.g. Cowl of a vehicle, is used.
  • Such a structural component 1 according to the prior art is shown in FIG. 1 and has two profiles 2 in the form of fiber-reinforced plastic rods, between which struts 4 are arranged, which serve to shape the component and, in particular, are produced by molding a plastic material onto the profiles 2 become.
  • the profile has a plurality of elongated stabilizing fibers embedded in the plastic matrix, which are characterized by a higher elongation at break than the reinforcing fibers.
  • These stabilizing fibers in addition to the actual reinforcing fibers and the plastic matrix form a third component of the elongated profile, in the event of an overload of the profile, for example in the event of an accident, because of their higher ductility, they prevent breakage or splintering at least to such an extent that there are no sharp breaking edges which could then protrude into the interior of the vehicle.
  • fibers are to be understood as meaning different elongated, fibrous materials, for example also wires and / or braids.
  • the profile is, in particular, a fiber-reinforced plastic rod which is arranged along a component load path, as a result of which a construction which is as load-bearing as possible is achieved.
  • the injection molding rib structure is preferably designed in the manner of a truss and serves to shape and stiffen the component.
  • the skeleton construction implemented in this way primarily meets lightweight construction requirements and enables a load-bearing design and a load path-compatible design of the structural component. In this way, in particular light and at the same time stable structural stiffening elements for motor vehicle body construction can be inexpensively mass-produced, which are characterized by a reliable guarantee of structural integrity.
  • the stabilizing fibers are made of a different material than the reinforcing fibers.
  • a plurality of elongated stabilizing fibers is preferably provided, which reliably ensures the structural integrity in the event of an overload.
  • the reinforcing fibers are carbon fibers, whereby particularly light components are achieved.
  • the use of glass fibers is also conceivable.
  • the elongated stabilizing fibers are preferably glass fibers. These have a higher elongation at break or ductility than carbon fibers. If glass fibers are already used as reinforcing fibers, another glass with higher ductility is used in particular for the stabilizing fibers.
  • the combination of two different materials as reinforcing fibers and stabilizing fibers can be compared to the sole use of fibers with high Ductility offer advantages in terms of stability, rigidity, weight and / or manufacturing costs of the structural component.
  • the elongated stabilizing fibers can be metal wires which also have a high elongation at break.
  • the profile is produced in a pultrusion process in which both the reinforcing fibers and the elongated stabilizing fibers are embedded in the plastic matrix. In this way, rod-like profiles with different cross-sections can be manufactured in a simple and inexpensive manner.
  • the reinforcing fibers preferably run essentially parallel to one another, in particular they are oriented unidirectionally. Reinforcing fibers of this type exhibit an anisotropic material behavior, as a result of which the structural component has high rigidity, particularly in the longitudinal direction.
  • the reinforcing fibers form a bundle which is surrounded on its outer surface by a layer of elongated stabilizing fibers.
  • the elongated stabilizing fibers form a bundle, which is surrounded on its outer surface by a layer of reinforcing fibers.
  • the inner bundle made of the first material component has the geometric shape of a cylinder or prism, in particular with a round, elliptical or angular cross section, and is completely surrounded on the outside by a layer of the second material component. This arrangement is easy to implement in terms of production technology and is characterized by a reliable guarantee of structural integrity.
  • Two or more elongate profiles made of fiber-reinforced plastic are preferably provided, which are connected by the injection molding rib structure.
  • the profiles run in particular along the component load paths, which results in a light and stable component with a design that is suitable for the load path and can withstand particularly high loads. If the fiber-reinforced plastic profiles run along an outer surface of the structural component, this also simplifies the manufacture of the structural component, since the fiber-reinforced plastic profiles can simply be inserted into a tool.
  • the injection molding rib structure can consist of a short fiber reinforced thermoplastic. In addition, short fiber reinforced thermoplastics are particularly well suited for injection molding applications.
  • a flat support part made of organic sheet which is connected to the profile and / or the injection molding with a rib structure and in particular extends at least in one plane over the entire surface of the structural component.
  • the additional support part made of organic sheet which is a thin-walled, flat fiber-thermoplastic semi-finished product, is combined with the profile and the injection-molded rib structure in such a way that the structural component is increased in rigidity.
  • organic sheet also has a high elongation at break, which also has a positive effect on the structural integrity of the component in the event of an overload.
  • the carrier part is preferably connected to the injection molding rib structure and / or the profile by means of material locking and / or positive locking. A particularly stable connection and at the same time simple and inexpensive production can be achieved if the carrier part is connected directly to the other components when the rib structure is injected.
  • At least one connecting element made of metal is provided, which is connected to the injection molding rib structure by means of material locking, friction locking and / or positive locking.
  • This enables the structural component to be connected to an adjacent vehicle structure using warm connection techniques for metallic materials such as Welding.
  • the connecting element can have recesses, for example, and can be partially overmolded as an insert when the injection-molded rib structure is produced.
  • Figure 1 is a schematic representation of a structural component according to the prior art in side view
  • Figure 2 is a schematic representation of a structural component according to the invention in side view
  • FIG. 3 shows schematic cross-sectional views of two profiles used in the structural component according to the invention.
  • Figure 4 is a schematic representation of a structural component according to a development of the invention in side view.
  • FIG. 2 shows a structural component 10 according to the invention for a motor vehicle, which is, in particular, a body component such as a roof bow.
  • the structural component 10 has two elongated profiles 12 made of fiber-reinforced plastic, which are designed here as rods.
  • the fiber reinforcement of the profiles 12 is formed by a multiplicity of reinforcing fibers 14 running parallel to one another (see FIGS. 3a and 3b), which are preferably unidirectionally oriented continuous fibers which are embedded in a plastic matrix 16, in particular made of thermoplastic, as shown in FIG 3 can be removed.
  • the profiles 12 have numerous elongated stabilizing fibers 18 embedded in the plastic matrix 16, which are characterized by a higher elongation at break or ductility than the reinforcing fibers 14. While carbon fibers are preferably used as reinforcing fibers 14, the elongated stabilizing fibers 18 are glass fibers which have a higher ductility than carbon fibers or metal wires.
  • the profiles 12 are produced in a pultrusion process in which both the reinforcing fibers 14 and the elongated stabilizing fibers 18 are embedded in the plastic matrix 16.
  • the reinforcing fibers 14 form a bundle 20 which is surrounded on its outer surface 22 by a layer 24 of stabilizing fibers 18.
  • the reinforcing fibers 14 do not extend here into the layer of the stabilizing fibers 18. This variant is shown in FIG. 3a.
  • the elongated stabilizing fibers 18 form a bundle 26, which is surrounded on its outer surface 28 by a layer 30 of reinforcing fibers 14 (see FIG. 3b).
  • a layer 30 of reinforcing fibers 14 see FIG. 3b.
  • reinforcing fibers 14 and stabilizing fibers 18 are arranged alternately, regularly or arbitrarily, in a common bundle.
  • the structural component 10 also has an injection-molded rib structure 32 molded onto the profiles 12, which is constructed in the manner of a framework and which connects the two profiles 12 to one another (see FIG. 2) and consists of a short-fiber-reinforced thermoplastic which, for example, is also produced via in-situ polymerization. ,
  • a connecting element 34 made of metal here a metal flange, is provided, which is connected to the injection molding rib structure 32 by means of material locking, friction locking and / or positive locking, here in particular by means of positive locking.
  • the connecting element 34 made of metal is not a mandatory component of the structural component 10 according to the invention.
  • FIG. 4 shows a structural component 10 according to a development of the invention, which, in addition to the components described so far, has a flat support part 36 made of organic sheet metal, which is connected to the injection molding rib structure 32 in a cohesive or positive manner.
  • the carrier part 36 extends in a plane which corresponds to the plane of the drawing and runs parallel to the plane defined by the two profiles 12, over the entire surface of the structural component 10, that is to say in particular up to its edge.
  • the injection molding rib structure 32 can be provided on one side (namely the front side visible in FIG. 4) of the flat carrier part 36 or can be present on both sides of the flat carrier part 36, in particular symmetrically.
  • a suitable mold is first provided, and the elongated profiles 12, which are prefabricated in the pultrusion process, are heated and, if necessary, hot-formed. If a flat carrier part 36 made of organic sheet is used, this is also heated and inserted together with the formed profiles 12 into the mold. Finally, the profiles 12 (and possibly the carrier part 36) is at least partially encapsulated with plastic, the injection molding rib structure 32 being formed at the same time.
  • a connecting element 34 made of metal is provided, this is preferably also inserted into the tool mold together with the shaped profiles 12 and the carrier part 36, and is partially overmolded during injection molding of the injection molding rib structure 32 in order to produce the desired connection.
  • the structural component 10 according to the invention is characterized by a low weight and high stability due to the skeleton construction.
  • the stabilizing fibers 18 ensure a secure guarantee of structural integrity.
  • the optional use of a support part 36 made of organic sheet can additionally increase the rigidity and further improve the elongation at break.

Abstract

A structural component (10) for a motor vehicle has at least one elongate fiber-reinforced plastic profile (12), which has a plastic matrix and reinforcing fibers embedded therein, and an injection-molded rib structure (32) molded onto the profile (12). The profile (12) has a plurality of elongate stabilizing fibers which are embedded in the plastic matrix and are characterized by a higher elongation at break than the reinforcing fibers.

Description

Strukturbauteil für ein Kraftfahrzeug  Structural component for a motor vehicle
Die Erfindung betrifft ein Strukturbauteil für ein Kraftfahrzeug mit wenigstens einem länglichen Profil aus faserverstärktem Kunststoff, das eine Kunststoffmatrix sowie darin eingebettete Verstärkungsfasern aufweist, und einer an das Profil angespritzten Spritzgussrippenstruktur.  The invention relates to a structural component for a motor vehicle with at least one elongated profile made of fiber-reinforced plastic, which has a plastic matrix and reinforcing fibers embedded therein, and an injection-molded rib structure molded onto the profile.
Faserverstärkte Kunststoffe besitzen ein hohes Leichtbaupotential und können aufgrund der eingearbeiteten Fasern hohe Zugkräfte aufnehmen. Dabei sind die gewichtsspezifischen Vorteile von faserverstärkten Kunststoffen am besten nutzbar, wenn die Fasern im Matrixmaterial entlang der Lastpfade verlaufen, was eine belastungsgerechte Konstruktion des Bauteils voraussetzt. Fiber-reinforced plastics have a high potential for lightweight construction and can absorb high tensile forces due to the incorporated fibers. The weight-specific advantages of fiber-reinforced plastics can be best exploited if the fibers in the matrix material run along the load paths, which requires the component to be designed to withstand the load.
Aus der gattungsbildenden DE 10 2013 219 820 A1 ist ein Strukturbauteil in sogenannter Skelettbauweise bekannt, das als Karosseriebauteil, z.B. Windlauf eines Fahrzeugs, Verwendung findet. Ein solches Strukturbauteil 1 gemäß dem Stand der Technik ist in Figur 1 dargestellt und weist zwei Profile 2 in Form von faserverstärkten Kunststoffstäben auf, zwischen denen Verstrebungsmittel 4 angeordnet sind, die der Formgebung des Bauteils dienen und insbesondere durch Anspritzen eines Kunststoffmaterials an die Profile 2 erzeugt werden. A structural component in a so-called skeleton construction is known from the generic DE 10 2013 219 820 A1, which is used as a body component, e.g. Cowl of a vehicle, is used. Such a structural component 1 according to the prior art is shown in FIG. 1 and has two profiles 2 in the form of fiber-reinforced plastic rods, between which struts 4 are arranged, which serve to shape the component and, in particular, are produced by molding a plastic material onto the profiles 2 become.
Bei diesem bekannten Strukturbauteil besteht die Gefahr, dass es beispielsweise bei einem Unfall mit seitlichem Aufprall des Fahrzeugs brechen oder splittern kann. With this known structural component, there is a risk that it may break or splinter, for example in the event of an accident with a side impact of the vehicle.
Es ist daher Aufgabe der Erfindung, ein Strukturbauteil bereitzustellen, das sich durch eine verbesserte Strukturintegrität, also eine bessere Gewährleistung der Sicherheit und Zuverlässigkeit des Bauteils, auszeichnet. It is therefore an object of the invention to provide a structural component which is distinguished by improved structural integrity, that is to say a better guarantee of the safety and reliability of the component.
Erfindungsgemäß ist hierzu bei einem Strukturbauteil der eingangs genannten Art vorgesehen, dass das Profil mehrere längliche, in die Kunststoffmatrix eingebettete Stabilisierungsfasern aufweist, die sich durch eine höhere Bruchdehnung als die Verstärkungsfasern auszeichnen. Diese Stabilisierungs fasern, die neben den eigentlichen Verstärkungsfasern und der Kunststoff matrix eine dritte Komponente des länglichen Profils bilden, verhindern im Falle einer Überlastung des Profils, etwa bei einem Unfall, aufgrund ihrer höheren Duktilität einen Bruch bzw. ein Splittern zumindest soweit, dass keine spitzen Bruchkanten entstehen, die dann in den Innenraum des Fahrzeugs ragen könnten. Hierbei ist zu beachten, dass im Sinne der Erfindung unter„Fasern“ verschiedene längliche, faserartige Materialien zu verstehen sind, z.B. auch Drähte und/oder Geflechte. Bei dem Profil handelt es sich insbesondere um einen faserverstärkten Kunststoffstab, der entlang eines Bauteillastpfads angeordnet ist, wodurch eine möglichst belastungsgerechte Konstruktion erreicht wird. Die Spritzgussrippenstruktur ist vorzugsweise fachwerkartig ausgeführt und dient der Formgebung sowie der Versteifung des Bauteils. Die so realisierte Skelettbauweise erfüllt vor allem Leichtbauanforderungen und ermöglicht eine belastungsgerechte Konstruktion sowie eine lastpfadgerechte Auslegung des Strukturbauteils. Auf diese Weise lassen sich insbesondere leichte und gleichzeitig stabile Strukturversteifungselemente für den Kraftfahrzeug-Karosseriebau kostengünstig in Großserie hersteilen, die sich durch eine sichere Gewährleistung der Strukturintegrität auszeichnen. For this purpose, according to the invention, in the case of a structural component of the type mentioned at the outset, the profile has a plurality of elongated stabilizing fibers embedded in the plastic matrix, which are characterized by a higher elongation at break than the reinforcing fibers. These stabilizing fibers, in addition to the actual reinforcing fibers and the plastic matrix form a third component of the elongated profile, in the event of an overload of the profile, for example in the event of an accident, because of their higher ductility, they prevent breakage or splintering at least to such an extent that there are no sharp breaking edges which could then protrude into the interior of the vehicle. It should be noted here that in the context of the invention, “fibers” are to be understood as meaning different elongated, fibrous materials, for example also wires and / or braids. The profile is, in particular, a fiber-reinforced plastic rod which is arranged along a component load path, as a result of which a construction which is as load-bearing as possible is achieved. The injection molding rib structure is preferably designed in the manner of a truss and serves to shape and stiffen the component. The skeleton construction implemented in this way primarily meets lightweight construction requirements and enables a load-bearing design and a load path-compatible design of the structural component. In this way, in particular light and at the same time stable structural stiffening elements for motor vehicle body construction can be inexpensively mass-produced, which are characterized by a reliable guarantee of structural integrity.
Die Stabilisierungsfasern sind aus einem anderen Material als die Verstärkungsfasern. The stabilizing fibers are made of a different material than the reinforcing fibers.
Vorzugsweise ist eine Vielzahl von länglichen Stabilisierungsfasern vorgesehen, was die Strukturintegrität im Überlastungsfall sicher gewährleistet. A plurality of elongated stabilizing fibers is preferably provided, which reliably ensures the structural integrity in the event of an overload.
In einer bevorzugten Ausgestaltung handelt es sich bei den Verstärkungs fasern um Carbonfasern, wodurch besonders leichte Bauteile erzielt werden. Alternativ ist auch der Einsatz von Glasfasern denkbar. In a preferred embodiment, the reinforcing fibers are carbon fibers, whereby particularly light components are achieved. Alternatively, the use of glass fibers is also conceivable.
Bei den länglichen Stabilisierungsfasern handelt es sich vorzugsweise um Glasfasern. Diese weisen eine höhere Bruchdehnung bzw. Duktilität als Carbonfasern auf. Falls als Verstärkungsfasern bereits Glasfasern verwendet werden, wird für die Stabilisierungsfasern insbesondere auf ein anderes Glas mit höherer Duktilität zurückgegriffen. The elongated stabilizing fibers are preferably glass fibers. These have a higher elongation at break or ductility than carbon fibers. If glass fibers are already used as reinforcing fibers, another glass with higher ductility is used in particular for the stabilizing fibers.
Die Kombination zweier unterschiedlicher Materialien als Verstärkungsfasern und Stabilisierungsfasern (etwa zweier unterschiedlicher Glasarten oder Carbon und Glas) kann gegenüber der alleinigen Verwendung von Fasern mit hoher Duktilität Vorteile hinsichtlich Stabilität, Steifigkeit, Gewicht und/oder Fertigungs kosten des Strukturbauteils bieten. The combination of two different materials as reinforcing fibers and stabilizing fibers (for example two different types of glass or carbon and glass) can be compared to the sole use of fibers with high Ductility offer advantages in terms of stability, rigidity, weight and / or manufacturing costs of the structural component.
Alternativ oder zusätzlich kann es sich bei den länglichen Stabilisierungsfasern um Metalldrähte handeln, die ebenfalls eine hohe Bruchdehnung aufweisen. Alternatively or additionally, the elongated stabilizing fibers can be metal wires which also have a high elongation at break.
In einer bevorzugten Ausgestaltung ist das Profil in einem Pultrusionsverfahren hergestellt, bei dem sowohl die Verstärkungsfasern als auch die länglichen Stabilisierungsfasern in die Kunststoff matrix eingebettet werden. So lassen sich auf einfache und kostengünstige Weise stabartige Profile mit unterschiedlichen Querschnitten fertigen. In a preferred embodiment, the profile is produced in a pultrusion process in which both the reinforcing fibers and the elongated stabilizing fibers are embedded in the plastic matrix. In this way, rod-like profiles with different cross-sections can be manufactured in a simple and inexpensive manner.
Vorzugsweise verlaufen die Verstärkungsfasern im Wesentlichen parallel zueinander, insbesondere sind sie unidirektional ausgerichtet. Derartige Verstärkungsfasern zeigen ein anisotropes Materialverhalten, wodurch das Strukturbauteil vor allem in Längsrichtung eine hohe Steifigkeit aufweist. The reinforcing fibers preferably run essentially parallel to one another, in particular they are oriented unidirectionally. Reinforcing fibers of this type exhibit an anisotropic material behavior, as a result of which the structural component has high rigidity, particularly in the longitudinal direction.
In einer besonders bevorzugten Ausführungsform bilden die Verstärkungs fasern ein Bündel, das an seiner Mantelfläche von einer Schicht aus länglichen Stabilisierungsfasern umgeben ist. Alternativ bilden die länglichen Stabilisierungs fasern ein Bündel, das an seiner Mantelfläche von einer Schicht aus Verstärkungs fasern umgeben ist. Dabei hat das innere Bündel aus der ersten Material komponente (Verstärkungsfasern oder Stabilisierungsfasern) die geometrische Form eines Zylinders bzw. Prismas, insbesondere mit rundem, elliptischem oder eckigem Querschnitt, und wird außenseitig vollständig von einer Schicht der zweiten Materialkomponente umgeben. Diese Anordnung ist fertigungstechnisch einfach zu realisieren und zeichnet sich durch eine sichere Gewährleistung der Strukturintegrität aus. In a particularly preferred embodiment, the reinforcing fibers form a bundle which is surrounded on its outer surface by a layer of elongated stabilizing fibers. Alternatively, the elongated stabilizing fibers form a bundle, which is surrounded on its outer surface by a layer of reinforcing fibers. The inner bundle made of the first material component (reinforcing fibers or stabilizing fibers) has the geometric shape of a cylinder or prism, in particular with a round, elliptical or angular cross section, and is completely surrounded on the outside by a layer of the second material component. This arrangement is easy to implement in terms of production technology and is characterized by a reliable guarantee of structural integrity.
Bevorzugt sind zwei oder mehr längliche Profile aus faserverstärktem Kunststoff vorgesehen, die durch die Spritzgussrippenstruktur verbunden sind. Die Profile verlaufen dabei insbesondere entlang der Bauteillastpfade, wodurch sich ein leichtes und stabiles Bauteil mit lastpfadgerechter Auslegung ergibt, das besonders hohe Belastungen aufnehmen kann. Verlaufen die faserverstärkten Kunststoffprofile dabei entlang einer Außenfläche des Strukturbauteils, erleichtert dies zudem die Herstellung des Strukturbauteils, da die faserverstärkten Kunststoffprofile einfach in ein Werkzeug eingelegt werden können. Zur weiteren Verbesserung der Stabilität kann die Spritzgussrippenstruktur aus einem kurzfaserverstärkten thermoplastischen Kunststoff bestehen. Zudem eignen sich kurzfaserverstärkte Thermoplaste besonders gut für Spritzguss anwendungen. Two or more elongate profiles made of fiber-reinforced plastic are preferably provided, which are connected by the injection molding rib structure. The profiles run in particular along the component load paths, which results in a light and stable component with a design that is suitable for the load path and can withstand particularly high loads. If the fiber-reinforced plastic profiles run along an outer surface of the structural component, this also simplifies the manufacture of the structural component, since the fiber-reinforced plastic profiles can simply be inserted into a tool. To further improve stability, the injection molding rib structure can consist of a short fiber reinforced thermoplastic. In addition, short fiber reinforced thermoplastics are particularly well suited for injection molding applications.
In einer Weiterbildung der Erfindung ist ein flächiges Trägerteil aus Organoblech vorgesehen, das mit dem Profil und/oder der Spritzguss rippenstruktur verbunden ist und sich insbesondere zumindest in einer Ebene über die gesamte Fläche des Strukturbauteils erstreckt. Das zusätzliche Trägerteil aus Organoblech, bei dem es sich um ein dünnwandiges, flächiges Faser- Thermoplast-Halbzeug handelt, wird so mit dem Profil und der Spritzguss rippenstruktur kombiniert, dass eine Steifigkeitserhöhung des Strukturbauteils erreicht wird. Zudem weist Organoblech ebenfalls eine hohe Bruchdehnung auf, was sich zusätzlich positiv auf die Strukturintegrität des Bauteils im Überlastungsfall auswirkt. In a development of the invention, a flat support part made of organic sheet is provided, which is connected to the profile and / or the injection molding with a rib structure and in particular extends at least in one plane over the entire surface of the structural component. The additional support part made of organic sheet, which is a thin-walled, flat fiber-thermoplastic semi-finished product, is combined with the profile and the injection-molded rib structure in such a way that the structural component is increased in rigidity. In addition, organic sheet also has a high elongation at break, which also has a positive effect on the structural integrity of the component in the event of an overload.
Vorzugsweise ist das Trägerteil durch Stoffschluss und/oder Formschluss mit der Spritzgussrippenstruktur und/oder dem Profil verbunden. Eine besonders stabile Verbindung bei zugleich einfacher und kostengünstiger Herstellung lässt sich erzielen, wenn das Trägerteil direkt beim Spritzen der Rippenstruktur mit den übrigen Komponenten verbunden wird. The carrier part is preferably connected to the injection molding rib structure and / or the profile by means of material locking and / or positive locking. A particularly stable connection and at the same time simple and inexpensive production can be achieved if the carrier part is connected directly to the other components when the rib structure is injected.
In einer Weiterbildung der Erfindung ist wenigstens ein Anbindungselement aus Metall vorgesehen, das mit der Spritzgussrippenstruktur durch Stoffschluss, Reibschluss und/oder Formschluss verbunden ist. Dies ermöglicht eine Verbindung des Strukturbauteils mit einer angrenzenden Fahrzeugstruktur durch warme Verbindungstechniken für metallische Materialien wie z.B. Schweißen. Dabei kann das Anbindungselement zum Beispiel Aussparungen aufweisen und als Einlegeteil beim Erzeugen der Spritzgussrippenstruktur teilweise mit umspritzt werden. In a further development of the invention, at least one connecting element made of metal is provided, which is connected to the injection molding rib structure by means of material locking, friction locking and / or positive locking. This enables the structural component to be connected to an adjacent vehicle structure using warm connection techniques for metallic materials such as Welding. In this case, the connecting element can have recesses, for example, and can be partially overmolded as an insert when the injection-molded rib structure is produced.
Weitere Merkmale und Vorteile ergeben sich aus der nachfolgenden Beschreibung mehrerer bevorzugter Ausführungsformen anhand der beigefügten Zeichnung. In dieser zeigt: Further features and advantages result from the following description of several preferred embodiments with reference to the attached drawing. In this shows:
Figur 1 eine schematische Darstellung eines Strukturbauteils gemäß dem Stand der Technik in Seitenansicht; Figur 2 eine schematische Darstellung eines erfindungsgemäßen Struktur bauteils in Seitenansicht; Figure 1 is a schematic representation of a structural component according to the prior art in side view; Figure 2 is a schematic representation of a structural component according to the invention in side view;
Figur 3 schematische Querschnittsansichten zweier beim erfindungs gemäßen Strukturbauteil verwendeten Profile; und FIG. 3 shows schematic cross-sectional views of two profiles used in the structural component according to the invention; and
Figur 4 eine schematische Darstellung eines Strukturbauteils gemäß einer Weiterbildung der Erfindung in Seitenansicht. Figure 4 is a schematic representation of a structural component according to a development of the invention in side view.
Figur 2 zeigt ein erfindungsgemäßes Strukturbauteil 10 für ein Kraftfahrzeug, bei dem es sich insbesondere um ein Karosseriebauteil wie etwa einen Dachspriegel handelt. Das Strukturbauteil 10 weist zwei längliche Profile 12 aus faserverstärktem Kunststoff auf, die hier als Stäbe ausgeführt sind. FIG. 2 shows a structural component 10 according to the invention for a motor vehicle, which is, in particular, a body component such as a roof bow. The structural component 10 has two elongated profiles 12 made of fiber-reinforced plastic, which are designed here as rods.
Die Faserverstärkung der Profile 12 wird durch eine Vielzahl parallel zueinander verlaufender Verstärkungsfasern 14 gebildet (siehe Figuren 3a und 3b), bei denen es sich vorzugsweise um unidirektional ausgerichtete Endlosfasern handelt, die in eine Kunststoffmatrix 16, insbesondere aus thermoplastischem Kunststoff, eingebettet sind, wie Figur 3 entnommen werden kann. The fiber reinforcement of the profiles 12 is formed by a multiplicity of reinforcing fibers 14 running parallel to one another (see FIGS. 3a and 3b), which are preferably unidirectionally oriented continuous fibers which are embedded in a plastic matrix 16, in particular made of thermoplastic, as shown in FIG 3 can be removed.
Zusätzlich weisen die Profile 12 zahlreiche längliche, mit in die Kunststoffmatrix 16 eingebettete Stabilisierungsfasern 18 auf, die sich durch eine höhere Bruchdehnung bzw. Duktilität als die Verstärkungsfasern 14 auszeichnen. Während als Verstärkungsfasern 14 bevorzugt Carbonfasern eingesetzt werden, handelt es sich bei den länglichen Stabilisierungsfasern 18 um Glasfasern, die eine höhere Duktilität als Carbonfasern aufweisen, oder um Metalldrähte.  In addition, the profiles 12 have numerous elongated stabilizing fibers 18 embedded in the plastic matrix 16, which are characterized by a higher elongation at break or ductility than the reinforcing fibers 14. While carbon fibers are preferably used as reinforcing fibers 14, the elongated stabilizing fibers 18 are glass fibers which have a higher ductility than carbon fibers or metal wires.
Die Profile 12 werden in einem Pultrusionsverfahren hergestellt, bei dem sowohl die Verstärkungsfasern 14 als auch die länglichen Stabilisierungsfasern 18 in die Kunststoffmatrix 16 eingebettet werden. The profiles 12 are produced in a pultrusion process in which both the reinforcing fibers 14 and the elongated stabilizing fibers 18 are embedded in the plastic matrix 16.
Dabei bilden die Verstärkungsfasern 14 ein Bündel 20, das an seiner Mantelfläche 22 von einer Schicht 24 aus Stabilisierungsfasern 18 umgeben ist. Die Verstärkungsfasern 14 erstrecken sich hier nicht in die Schicht der Stabilisierungsfasern 18. Diese Variante ist in Figur 3a gezeigt. The reinforcing fibers 14 form a bundle 20 which is surrounded on its outer surface 22 by a layer 24 of stabilizing fibers 18. The reinforcing fibers 14 do not extend here into the layer of the stabilizing fibers 18. This variant is shown in FIG. 3a.
Alternativ bilden die länglichen Stabilisierungsfasern 18 ein Bündel 26, das an seiner Mantelfläche 28 von einer Schicht 30 aus Verstärkungsfasern 14 umgeben ist (siehe Figur 3b). Neben den gezeigten Varianten der Profile 12 mit kreisförmigen Querschnitt ist natürlich auch ein elliptischer oder eckiger, insbesondere rechteckiger oder quadratischer, Querschnitt denkbar. Ebenso ist es möglich, dass Verstärkungsfasern 14 und Stabilisierungsfasern 18 abwechselnd, regelmäßig oder willkürlich, in einem gemeinsamen Bündel angeordnet sind. Alternatively, the elongated stabilizing fibers 18 form a bundle 26, which is surrounded on its outer surface 28 by a layer 30 of reinforcing fibers 14 (see FIG. 3b). In addition to the variants of the profiles 12 with a circular cross section shown, an elliptical or angular, in particular rectangular or square, cross section is of course also conceivable. It is also possible for reinforcing fibers 14 and stabilizing fibers 18 to be arranged alternately, regularly or arbitrarily, in a common bundle.
Das Strukturbauteil 10 weist weiterhin eine an die Profile 12 angespritzte, fachwerkartig ausgeführte Spritzgussrippenstruktur 32 auf, die die beiden Profile 12 miteinander verbindet (siehe Figur 2) und aus einem kurzfaserverstärkten thermoplastischen Kunststoff besteht, welcher z.B. auch über in-situ- Polymerisation hergestellt ist. . The structural component 10 also has an injection-molded rib structure 32 molded onto the profiles 12, which is constructed in the manner of a framework and which connects the two profiles 12 to one another (see FIG. 2) and consists of a short-fiber-reinforced thermoplastic which, for example, is also produced via in-situ polymerization. ,
Zudem ist ein Anbindungselement 34 aus Metall, hier ein Metallflansch, vorgesehen, der mit der Spritzgussrippenstruktur 32 durch Stoffschluss, Reibschluss und/oder Formschluss verbunden ist, hier insbesondere durch Formschluss. Das Anbindungselement 34 aus Metall ist jedoch kein zwingender Bestandteil des erfindungsgemäßen Strukturbauteils 10. In addition, a connecting element 34 made of metal, here a metal flange, is provided, which is connected to the injection molding rib structure 32 by means of material locking, friction locking and / or positive locking, here in particular by means of positive locking. However, the connecting element 34 made of metal is not a mandatory component of the structural component 10 according to the invention.
Figur 4 zeigt ein Strukturbauteil 10 gemäß einer Weiterbildung der Erfindung, das zusätzlich zu den bisher beschriebenen Komponenten ein flächiges Trägerteil 36 aus Organoblech aufweist, das stoffschlüssig bzw. formschlüssig zumindest mit der Spritzgussrippenstruktur 32 verbunden ist. Das Trägerteil 36 erstreckt sich in einer Ebene, die hier der Zeichenebene entspricht und parallel zu der durch die beiden Profile 12 definierten Ebene verläuft, über die gesamte Fläche des Strukturbauteils 10, also insbesondere bis an dessen Rand. FIG. 4 shows a structural component 10 according to a development of the invention, which, in addition to the components described so far, has a flat support part 36 made of organic sheet metal, which is connected to the injection molding rib structure 32 in a cohesive or positive manner. The carrier part 36 extends in a plane which corresponds to the plane of the drawing and runs parallel to the plane defined by the two profiles 12, over the entire surface of the structural component 10, that is to say in particular up to its edge.
Dabei kann die Spritzgussrippenstruktur 32 auf einer Seite (nämlich der in Figur 4 sichtbaren vorderen Seite) des flächigen Trägerteils 36 vorgesehen sein oder auf beiden Seiten des flächigen Trägerteils 36 vorliegen, insbesondere symmetrisch. The injection molding rib structure 32 can be provided on one side (namely the front side visible in FIG. 4) of the flat carrier part 36 or can be present on both sides of the flat carrier part 36, in particular symmetrically.
Zur Fertigung des erfindungsgemäßen Strukturbauteils 10 wird zunächst eine passende Werkzeugform bereitgestellt, und die im Pultrusionsverfahren vorgefertigten länglichen Profile 12 werden erwärmt und gegebenenfalls warm umgeformt. Kommt ein flächiges Trägerteil 36 aus Organoblech zum Einsatz, wird auch dieses erwärmt und zusammen mit den umgeformten Profilen 12 in die Werkzeugform eingelegt. Schließlich werden die Profile 12 (und gegebenenfalls das Trägerteil 36) zumindest teilweise mit Kunststoff umspritzt, wobei gleichzeitig die Spritzgussrippenstruktur 32 gebildet wird. To manufacture the structural component 10 according to the invention, a suitable mold is first provided, and the elongated profiles 12, which are prefabricated in the pultrusion process, are heated and, if necessary, hot-formed. If a flat carrier part 36 made of organic sheet is used, this is also heated and inserted together with the formed profiles 12 into the mold. Finally, the profiles 12 (and possibly the carrier part 36) is at least partially encapsulated with plastic, the injection molding rib structure 32 being formed at the same time.
Ist ein Anbindungselement 34 aus Metall vorgesehen, so wird vorzugsweise auch dieses zusammen mit den umgeformten Profilen 12 sowie dem Trägerteil 36 in die Werkzeugform eingelegt und beim Spritzen der Spritzgussrippenstruktur 32 teilweise mit umspritzt, um die gewünschte Verbindung herzustellen. If a connecting element 34 made of metal is provided, this is preferably also inserted into the tool mold together with the shaped profiles 12 and the carrier part 36, and is partially overmolded during injection molding of the injection molding rib structure 32 in order to produce the desired connection.
Das erfindungsgemäße Strukturbauteil 10 zeichnet sich aufgrund der Skelettbauweise durch ein geringes Gewicht bei gleichzeitig hoher Stabilität aus. Die Stabilisierungsfasern 18 sorgen für eine sichere Gewährleistung der Strukturintegrität. Durch die optionale Verwendung eines Trägerteils 36 aus Organoblech lässt sich zusätzlich die Steifigkeit erhöhen und die Bruchdehnung noch weiter verbessern. The structural component 10 according to the invention is characterized by a low weight and high stability due to the skeleton construction. The stabilizing fibers 18 ensure a secure guarantee of structural integrity. The optional use of a support part 36 made of organic sheet can additionally increase the rigidity and further improve the elongation at break.

Claims

Patentansprüche claims
1. Strukturbauteil für ein Kraftfahrzeug, mit 1. Structural component for a motor vehicle, with
wenigstens einem länglichen Profil (12) aus faserverstärktem Kunststoff, das eine Kunststoffmatrix (16) sowie darin eingebettete Verstärkungsfasern (14) aufweist, und  at least one elongated profile (12) made of fiber-reinforced plastic, which has a plastic matrix (16) and reinforcing fibers (14) embedded therein, and
einer an das Profil (12) angespritzten Spritzgussrippenstruktur (32), dadurch gekennzeichnet, dass das Profil (12) mehrere längliche, in die Kunststoff matrix (16) eingebettete Stabilisierungsfasern (18) aufweist, die sich durch eine höhere Bruchdehnung als die Verstärkungsfasern (14) auszeichnen.  an injection molded rib structure (32) molded onto the profile (12), characterized in that the profile (12) has a plurality of elongated stabilizing fibers (18) embedded in the plastic matrix (16), which have a higher elongation at break than the reinforcing fibers (14 ) mark.
2. Strukturbauteil nach Anspruch 1 , dadurch gekennzeichnet, dass eine2. Structural component according to claim 1, characterized in that a
Vielzahl von länglichen Stabilisierungsfasern (18) vorgesehen ist. A plurality of elongate stabilizing fibers (18) is provided.
3. Strukturbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es sich bei den Verstärkungsfasern (14) um Carbonfasern handelt. 3. Structural component according to one of the preceding claims, characterized in that the reinforcing fibers (14) are carbon fibers.
4. Strukturbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es sich bei den länglichen Stabilisierungsfasern (18) um Glasfasern handelt. 4. Structural component according to one of the preceding claims, characterized in that the elongate stabilizing fibers (18) are glass fibers.
5. Strukturbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es sich bei den länglichen Stabilisierungsfasern (18) um Metalldrähte handelt. 5. Structural component according to one of the preceding claims, characterized in that the elongate stabilizing fibers (18) are metal wires.
6. Strukturbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Profil (12) in einem Pultrusionsverfahren hergestellt ist, bei dem sowohl die Verstärkungsfasern (14) als auch die länglichen Stabilisierungsfasern (18) in die Kunststoffmatrix (16) eingebettet werden. 6. Structural component according to one of the preceding claims, characterized in that the profile (12) is produced in a pultrusion process in which both the reinforcing fibers (14) and the elongated stabilizing fibers (18) are embedded in the plastic matrix (16).
7. Strukturbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Verstärkungsfasern (14) im Wesentlichen parallel zueinander verlaufen, insbesondere dass sie unidirektional ausgerichtet sind. 7. Structural component according to one of the preceding claims, characterized in that the reinforcing fibers (14) run essentially parallel to one another, in particular that they are aligned unidirectionally.
8. Strukturbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Verstärkungsfasern (14) ein Bündel (20) bilden, das an seiner Mantelfläche (22) von einer Schicht (24) aus länglichen Stabilisierungs fasern (18) umgeben ist bzw. dass die länglichen Stabilisierungsfasern (18) ein Bündel (26) bilden, das an seiner Mantelfläche (28) von einer Schicht (30) aus Verstärkungsfasern (14) umgeben ist. 8. Structural component according to one of the preceding claims, characterized in that the reinforcing fibers (14) form a bundle (20) which its outer surface (22) is surrounded by a layer (24) of elongated stabilizing fibers (18) or that the elongated stabilizing fibers (18) form a bundle (26), which is formed on its outer surface (28) by a layer (30) Reinforcing fibers (14) is surrounded.
9. Strukturbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zwei oder mehr längliche Profile (12) aus faserverstärktem Kunststoff vorgesehen sind, die durch die Spritzgussrippenstruktur (32) verbunden sind. 9. Structural component according to one of the preceding claims, characterized in that two or more elongate profiles (12) made of fiber-reinforced plastic are provided, which are connected by the injection molding rib structure (32).
10. Strukturbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Spritzgussrippenstruktur (32) aus einem kurzfaser verstärkten thermoplastischen Kunststoff besteht. 10. Structural component according to one of the preceding claims, characterized in that the injection molding rib structure (32) consists of a short fiber reinforced thermoplastic.
1 1 . Strukturbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein flächiges Trägerteil (36) aus Organoblech vorgesehen ist, das mit dem Profil (12) und/oder der Spritzgussrippenstruktur (32) verbunden ist und sich insbesondere zumindest in einer Ebene über die gesamte Fläche des Strukturbauteils (10) erstreckt. 1 1. Structural component according to one of the preceding claims, characterized in that a flat support part (36) made of organic sheet is provided, which is connected to the profile (12) and / or the injection molding rib structure (32) and is in particular at least in one plane over the entire surface of the structural component (10) extends.
12. Strukturbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass wenigstens ein Anbindungselement (34) aus Metall vorgesehen ist, das mit der Spritzgussrippenstruktur (32) durch Stoffschluss, Reibschluss und/oder Formschluss verbunden ist. 12. Structural component according to one of the preceding claims, characterized in that at least one connecting element (34) made of metal is provided, which is connected to the injection molding rib structure (32) by material locking, friction locking and / or positive locking.
PCT/EP2019/067673 2018-08-09 2019-07-02 Structural component for a motor vehicle WO2020030349A1 (en)

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DE102011105858A1 (en) * 2011-06-01 2012-12-06 Daimler Ag Method for manufacturing fiber reinforced plastic pultrusion profile used during manufacture of components of motor vehicle, involves curing plastic material for obtaining fiber reinforced plastic pultrusion profile
DE102013006131A1 (en) * 2013-04-10 2014-10-16 Webasto SE Roof frame component of a roof opening system of a vehicle
DE102013219820A1 (en) 2013-09-30 2015-04-02 Bayerische Motoren Werke Aktiengesellschaft Fiber composite component, method for producing a fiber composite component and use of fiber bundles and bracing means for producing a fiber composite component

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DE102009056472A1 (en) * 2009-12-01 2011-06-09 Daimler Ag Method for manufacturing composite component for pultrusion system, involves guiding textile semi-finished product and metallic semi-finished fiber product through heater to forming tool, particularly nozzle
DE102011105858A1 (en) * 2011-06-01 2012-12-06 Daimler Ag Method for manufacturing fiber reinforced plastic pultrusion profile used during manufacture of components of motor vehicle, involves curing plastic material for obtaining fiber reinforced plastic pultrusion profile
DE102013006131A1 (en) * 2013-04-10 2014-10-16 Webasto SE Roof frame component of a roof opening system of a vehicle
DE102013219820A1 (en) 2013-09-30 2015-04-02 Bayerische Motoren Werke Aktiengesellschaft Fiber composite component, method for producing a fiber composite component and use of fiber bundles and bracing means for producing a fiber composite component

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