WO2013139361A1

WO2013139361A1 - Vehicle component, and method for production thereof

Info

Publication number: WO2013139361A1
Application number: PCT/EP2012/005371
Authority: WO
Inventors: Detlev Penczek; Jürgen Schrader
Original assignee: Daimler Ag
Priority date: 2012-03-23
Filing date: 2012-12-22
Publication date: 2013-09-26
Also published as: DE102012005879A1

Abstract

The invention relates to a vehicle component (1), which is formed from a plurality of layers. According to the invention, at least one first cover layer (2) is formed from glass, wherein the first cover layer (2) is formed on a visible side of the vehicle component (1), and wherein the glass of the first cover layer (2) is a chemically hardened alkali-aluminosilicate glass. The invention further relates to a method for producing such a vehicle component (1).

Description

Vehicle component and method for its production

The invention relates to a vehicle component according to the features of the preamble of claim 1 and a method for producing a composite component according to the

Features of the preamble of claim 7.

As described in DE 10 2006 012 027 A1, sandwich components with a plastic / honeycomb core are known from the prior art. These are smooth, curved and / or spherical foam components, wherein in a filling

expanded polystyrene, expanded polypropylene and / or expanded polyethylene honeycombs are integrated. The honeycombs are made of paper, plastic and / or aluminum. Suitable auxiliary forms can be used to produce two- and three-dimensional shapes, for example corners, edges, curves or spheres. By adapting the properties of the foam used, the components can be optimized with regard to the requirement for sound insulation and / or thermal insulation and adapted to the requirements. Through the installation of beads and edges and other suitable profiles connecting webs can be provided. At the

Expanding process suitable materials, such as glass fiber reinforced plastic, sheet steel, aluminum sheet or decorative foil, are connected as a cover layer with the foamed component.

DE 10 2006 060 459 A1 describes a multilayer composite material having at least one glass layer. The multilayer composite material comprises a lower carrier layer made of a plastic, a metal or a combination of plastic and metal, an intermediate layer made of a soft material or a thermoplastic, a further fibrous intermediate layer made of plastic, which is provided with a solvent-free adhesive, and a upper cover layer of glass. The multilayer composite material is suitable for the installation of glass elements in the field of the electrical, electronics and automotive industries and for other industrial applications. In Bergmann, Wolfgang: Materials Technology. Part 2; 4th, updated edition - Munich: Hanser, 2009 as well as in Bergmann, Wolfgang: Werkstofftechnik. Part 1 ; 6th, updated edition - Munich: Hanser, 2008 chemically tempered glass is revealed.

In material glass 3. - Renningen-Malmsheim: expert-Verl. In 2001 aluminosilicate glass is disclosed.

From DE 10 2009 048 000 A1 a composite material made of open-cell rigid foam is known. The composite material comprises a sandwich element and a functional and / or decorative layer. The sandwich element comprises at least one core layer, comprising an open-cell hard foam, and at least one outer layer located on each side of this core layer.

In DE 10 2008 038 647 A1 a vehicle surface component with a

Solar cell arrangement described. The vehicle surface component is considered stiff

Plastic composite component formed, attachable to the outside of a vehicle and has a solar cell assembly. The plastic composite component is produced in lightweight construction according to the CSM method (composite spray molding) and the solar cell arrangement is arranged on the outside of the plastic composite component.

The invention has for its object to provide an improved vehicle component and an improved method for producing a vehicle component.

The object is achieved by a vehicle component having the features of claim 1 and a method for producing a vehicle component having the features of claim 7.

Advantageous embodiments of the invention are the subject of the dependent claims. A vehicle component is formed from a plurality of layers.

According to the invention, at least a first cover layer is formed from glass. This first cover layer is formed on a visible side of the vehicle component. The glass of the first cover layer is a chemically tempered glass, which is used as a

Alkali aluminosilicate glass is formed. The first cover layer of the chemically hardened glass has a layer thickness of up to one millimeter. The use of such a glass cover layer eliminates the need for a clearcoat. By the glass a qualitatively much higher quality surface of the vehicle component is achieved compared to the use of clear coat, also as Class A.

Designated glass surface. Furthermore, a depth effect with regard to a view of an underlying layer can be achieved by the first cover layer formed from glass, which forms an outer side of the vehicle component. In addition, the other layers of the vehicle component are protected against the effects of weather and UV radiation by the first cover layer formed from glass. Therefore, this vehicle component can be particularly advantageously designed as a vehicle outer component, d. H. a vehicle component, which is arranged on an outer side of the vehicle and therefore subject to such weather influences, is particularly heavily exposed.

The first cover layer of the chemically hardened glass has a layer thickness of up to one millimeter, for example, a layer thickness of 0.5 mm, 0.75 mm or 1 mm. This very thin and chemically hardened glass is also called thin glass and / or tempered glass. It has in particular due to the chemical curing on very good hardness properties and wear properties, d. H. in particular, it is very scratch-resistant. In order to achieve these particularly advantageous properties, the glass of the first cover layer is formed as an alkali aluminosilicate glass.

Expediently, a first plastic layer or a colored layer is arranged on a rear side of the first cover layer facing away from the visible side. The first plastic layer may be, for example, a decorative film. The color layer can also be formed, for example, as a color printing layer. Under color layer is to be understood that this layer may be formed in one or more color colors and / or non-color. Uncoloured colors are black and grayscale. This arranged under the first cover layer of glass color layer or first plastic layer is for the visual impression of the vehicle component

responsible. In an advantageous embodiment, the first plastic layer may be formed, for example, of polycarbonate (PC). For this purpose, the first cover layer of glass, for example, with the back of the polycarbonate. The polycarbonate can be designed to absorb infrared radiation, for example. Alternatively or additionally, the polycarbonate may be colored. Such a vehicle component may be formed, for example, as a roof window or part of such a roof window of a vehicle. It may be designed such that it is translucent, but that by the absorption of infrared radiation, a strong heating of a vehicle interior is prevented. By the polycarbonate, a so-called hybrid glass component is formed, which has a low weight and a high breaking strength. Furthermore, it has on an outer surface the described advantages of the first cover layer made of glass. In addition, it has the advantages of polycarbonate, ie, the colorability and the infrared radiation absorption. In this case, the first cover layer and the first plastic layer each form an outer side of the

Vehicle component, wherein, for example, the first plastic layer facing an interior of the vehicle and the first cover layer faces an external environment of the vehicle.

In an alternative embodiment, the first plastic layer can also be formed, for example, from ethylene vinyl acetate (EVA). This plastic is particularly suitable for connecting the first cover layer of glass with one or more other layers of the vehicle component, wherein the layer of ethylene vinyl acetate is preferably transparent.

The first plastic layer is in advantageous embodiments as one

carbon fiber reinforced plastic layer or as a carbon fiber reinforced plastic foam layer. This is a vehicle component with a

Carbon optics enabled. The respective carbon fiber reinforced layer is also referred to as visible carbon. Through the first cover layer of glass is doing a

Depth effect achieved, which would be very difficult to achieve by clearcoat. The plastic for the carbon fiber reinforced plastic layer, for example, the already mentioned ethylene vinyl acetate, which combines with the carbon fibers and thus forms a matrix of the carbon fiber reinforced plastic layer. The ethylene vinyl acetate is highly transparent after curing. In addition, through this plastic, the carbon fiber reinforced plastic layer with the glass

formed first cover layer and optionally connected to one or more further layers of the vehicle component.

The plastic for the carbon fiber reinforced plastic foam layer is

For example, foamed polyurethane (PU). Again, this acts as a matrix for the carbon fibers and also connects the carbon fiber reinforced

Plastic foam layer with the first cover layer formed from glass and optionally with one or more further layers of the vehicle component. By The foamed plastic is one of the carbon fiber reinforced

Plastic layer slightly different optical appearance of the vehicle component achieved, d. H. a slightly different SichtcarbonOptik.

Particularly preferably, the vehicle component comprises a honeycomb structure layer. Such components are also referred to as sandwich honeycomb composite components. This allows the formation of the vehicle component as a lightweight component, d. H. the vehicle component has a high stability and a low weight. In addition, a marking of a honeycomb structure on a visible surface of the vehicle component is prevented by the first cover layer of glass. The honeycomb structure layer can be formed for example by a honeycomb structure made of paper and / or cardboard or by a honeycomb structure made of plastic. Furthermore, for example, a honeycomb structure made of metal is possible, for example made of aluminum. Combinations of these materials are possible.

In an advantageous embodiment, a fiber-reinforced plastic foam layer is on one side of the honeycomb structure layer facing the first cover layer

arranged. This may be the already mentioned carbon fiber reinforced

Be plastic foam layer. However, this may also be, for example, a glass fiber reinforced plastic foam layer. This fiber reinforced

Plastic foam layer serves to stabilize the vehicle component and also the connection of the honeycomb layer with other layers of the vehicle component, d. H. is the fiber reinforced plastic foam layer as carbon fiber reinforced

Plastic foam layer formed so is connected by this honeycomb structure with the first cover layer of glass. Is this fiber-reinforced plastic foam layer formed as a glass fiber reinforced plastic foam layer, so is through this

Honeycomb layer, for example, connected to the first cover layer formed of glass and the color layer or first plastic layer disposed thereon, for example, the carbon fiber reinforced plastic layer.

Expediently, a fiber-reinforced plastic foam layer, in particular a glass-fiber-reinforced plastic foam layer, is arranged on a side of the honeycomb structure layer facing away from the first cover layer, or a second layer

Plastic layer and arranged on a second cover layer of a chemically hardened glass. In this way, the sandwich structure of the vehicle component completed. The fiber-reinforced plastic foam layer serves in particular to stabilize the vehicle component.

The second plastic layer and then the second cover layer are to be used in particular in a honeycomb structure made of plastic. In this case, the honeycomb structure layer is formed for example of a plurality of parallel aligned plastic tubes, for example made of polycarbonate (PC). On one side of this honeycomb structure layer, the first cover layer of glass is then arranged, which is connected to the honeycomb structure layer, for example by means of ethylene vinyl acetate (EVA) as the first plastic layer. On the other side of the honeycomb structure layer then the second plastic layer, for example also made of ethylene vinyl acetate (EVA), and thereon the second cover layer of the chemically hardened glass is arranged. In this case, the second plastic layer may also be colored. As a result, a semitransparent composite component is achieved, which is very light and arranged by the sandwich construction with the therein

Honeycomb layer simultaneously has a high strength. In this case, the two outer layers each form an outer side of the vehicle component. In this case, an outer side of the vehicle component, for example, the second cover layer, a

Vehicle interior to be facing and the other outside of the vehicle component is then facing an external vehicle environment. Alternatively to the glass, the second cover layer may also be formed from a transparent plastic, for example polycarbonate (PC).

In a method according to the invention for producing such

Vehicle component, the vehicle component is formed from a plurality of layers, wherein the first cover layer of the chemically hardened glass, which a

Layer thickness of up to one millimeter, wherein the glass of the first cover layer is formed as an alkali aluminosilicate glass is connected to one or more further layers cohesively and / or positively. As a result, the already described advantages are achieved. In particular, no clearcoat is required and the glass topcoat achieves a qualitatively much higher quality surface of the vehicle component compared with the use of clearcoat, also referred to as Class A glass surface. Furthermore, the first cover layer made of glass achieves a depth effect with respect to a view of an underlying layer. In addition, the other layers of the vehicle component are protected against weather influences and influences by the first cover layer formed from glass Protected against UV radiation. Therefore, the vehicle component which can be produced by means of the method can also be designed to be particularly advantageous as a vehicle outer component, that is to say one arranged on an outer side of the vehicle and therefore such

Weathering particularly heavily exposed vehicle component.

Expediently, the first plastic layer or the color layer is applied to a rear side of the first cover layer facing away from the visible side. The first plastic layer may be, for example, a decorative film. The color layer, which, for example, in a so-called in-mold coating process on the first

Cover layer can be applied, for example, as a

Color printing layer can be formed. Under color layer is to be understood that this layer may be formed in one or more color colors and / or non-color. Uncoloured colors are black and grayscale. This arranged under the first cover layer of glass ink layer or first plastic layer is responsible for the visual impression of the vehicle component.

In an advantageous embodiment, the first plastic layer can be formed, for example, from polycarbonate (PC). For this purpose, the first cover layer of glass, for example, with the back of the polycarbonate. The polycarbonate can be designed to absorb infrared radiation, for example. Alternatively or additionally, the polycarbonate may be colored. Such a vehicle component can be formed, for example, as a roof window or part of such a roof window of a vehicle. It can be designed such that it is translucent, but that by the absorption of infrared radiation strong heating of a

Vehicle interior is prevented. By the polycarbonate, a so-called hybrid glass component is formed, which has a low weight and a high

Having breaking strength. Furthermore, on an outer surface, the

described advantages of the first cover layer of glass. In addition, it has the advantages of the polycarbonate, d. H. the colorability and the infrared radiation absorption.

In an alternative embodiment, the first plastic layer can also be formed, for example, from ethylene vinyl acetate (EVA). This plastic is particularly suitable for connecting the first cover layer of glass with one or more other layers of the vehicle component, wherein the layer of ethylene vinyl acetate is preferably highly transparent after melting and curing. One visual impression of the vehicle component is then achieved by the other layers of the vehicle component, for example by carbon fibers, which are in

Connect process with the layer of ethylene vinyl acetate, so that the first plastic layer is then formed as a carbon fiber reinforced plastic layer.

Alternatively, this first plastic layer may also be a carbon fiber-reinforced plastic foam layer which is formed from carbon fibers and an intumescent plastic. This can also be used to connect the first

Cover layer of glass with one or more other layers of the vehicle component serve. The plastic layer of carbon fibers and the then foamed plastic is responsible in this embodiment for the visual impression of the vehicle component.

Preferably, a honeycomb core is materially and / or positively connected to the first cover layer, the first plastic layer or ink layer and further layers. This is a trained as a sandwich honeycomb composite component

Vehicle component manufactured. This allows the formation of the vehicle component as a lightweight component, d. H. the vehicle component has a high stability and a low weight. In addition, a marking of a honeycomb structure on a visible surface of the vehicle component is prevented by the first cover layer of glass. The honeycomb structure layer can be formed for example by a honeycomb structure made of paper and / or cardboard or by a honeycomb structure made of plastic. Other materials, for example metal, in particular aluminum, or a combination of these materials is possible.

The layers of the vehicle component can be arranged, for example successively in a mold and pressed together under pressure and heat and thereby materially and / or positively connected with each other. Alternatively, individual components of the vehicle component can initially be connected to each other separately and then these are connected to the vehicle component with each other. For example, at first one or more layers are laminated to the side facing away from the visible side of the first cover layer of glass and further a honeycomb composite is made from the honeycomb structure layer on which on both sides glass fiber mats are applied, which are sprayed with foaming plastic. This honeycomb composite is then together with the laminate of the first Cover layer inserted into a corresponding tool and pressed under pressure and heat, wherein the foaming plastic is activated so that it expels and hardens.

Embodiments of the invention are explained in more detail below with reference to drawings.

Showing:

1A is a schematic representation of a first embodiment of a

Layer structure of a vehicle component to be manufactured,

Fig. 1B is a schematic representation of a first embodiment of a

Vehicle component,

2A is a schematic representation of a second embodiment of a

Layer structure of a vehicle component to be manufactured,

2B is a schematic representation of a second embodiment of a

Vehicle component,

Fig. 3A is a schematic representation of a layered structure of a third

Embodiment of a vehicle component to be manufactured,

3B is a schematic representation of a connected layer substructure of a third embodiment of a vehicle component to be manufactured,

3C is a schematic representation of a third embodiment of a

Layer structure of a vehicle component to be manufactured,

Fig. 3D is a schematic representation of a third embodiment of a

Vehicle component,

4A is a schematic representation of a fourth embodiment of a

Layer structure of a vehicle component to be manufactured, 4B is a schematic representation of a fourth embodiment of a vehicle component, and

Fig. 5 is a schematic representation of a fifth embodiment of a

Vehicle component.

Corresponding parts are provided in all figures with the same reference numerals.

FIGS. 1A to 5 show different embodiments of layer structures of a vehicle component 1 during a method for the production thereof and the vehicle component 1 resulting therefrom. At least one first cover layer 2 of the vehicle component 1 is formed in each case from glass. This first cover layer 2 is formed on a visible side of the vehicle component 1. The glass of this first

Cover layer 2 is formed as a chemically tempered glass, more preferably as an alkali aluminosilicate glass. The first cover layer 2 made of this chemically hardened glass preferably has a layer thickness of up to one millimeter, for example a layer thickness of 0.5 mm, 0.75 mm or 1 mm.

In the first example shown in FIG. 1A, for producing the vehicle component 1, a foaming plastic AK, for example made of polyurethane, is applied to a rear side of the first cover layer 2 made of glass, ie, on a side facing away from its visible side. For this purpose, for example, first the first cover layer 2 made of glass is inserted into a cavity of a molding tool, not shown, and the foaming plastic AK is sprayed onto the back of the first cover layer 2. During the application of the foaming plastic AK, ie, for example, the polyurethane, while not yet foamed, but it is activated only in subsequent manufacturing steps, whereby it expels and hardens. On this foaming plastic AK, a layer of carbon fibers CF is applied, for example as a carbon fiber mat, which is designed as a fabric or scrim. Then, a honeycomb structure layer 3 is applied. This honeycomb structure layer 3 is formed, for example, as a honeycomb core of paper and / or cardboard. On this honeycomb structure layer 3, glass fibers GF are applied, for example in the form of a glass fiber mat, which are then sprayed with the foaming plastic AK. The mold is then closed and the layers are pressed together by pressure and heat. As a result, the foaming plastic AK is activated, whereby it foams and penetrates into adjacent layers. In this way, as shown in Figure 1 B, formed on the side facing away from the visible side of the first cover layer 2, a first plastic layer 4, which is formed in this embodiment as a carbon fiber reinforced plastic foam layer, since the foaming plastic AK during the foaming the Layer off

Carbon fibers CF permeates and partially penetrates into the honeycomb structure layer 3. The foaming plastic AK thereby forms a matrix for the carbon fibers CF in the foamed state, so that the carbon fiber reinforced

Plastic foam layer is formed in the form of a carbon layer, which is visible through the first cover layer 2 made of glass.

This carbon layer is also called visible carbon. In this way, the vehicle component 1 has a carbon look with a high-quality surface that is high-gloss through the first cover layer 2 of glass and that can not be reached, for example, by clearcoat. In addition, an optical depth effect is achieved by the first cover layer 2 made of glass. Furthermore, the vehicle component 1 is through this first

Cover layer 2 of the chemically hardened glass, which is very good

Has hardness properties and wear characteristics and in particular is very scratch resistant, protected from the weather and also from damage by UV radiation. Therefore, in particular vehicle exterior components can be produced in this way.

Furthermore, the first cover layer 2 made of glass is materially connected to the carbon fiber-reinforced plastic foam layer by the foaming plastic AK and the honeycomb structure layer 3 is firmly bonded and positively connected to the carbon fiber reinforced plastic foam layer. In addition, on the other side of the honeycomb structure layer 3, the foaming plastic AK applied there penetrates the layer of glass fibers GF, d. H. the glass fiber mat, and also partially penetrates into the honeycomb structure layer 3, so here is a

glass fiber reinforced plastic foam layer 5 forms, which with the

Honeycomb layer 3 is connected cohesively and positively. Through the honeycomb structure layer 3, a lightweight component is made possible, so that in this way a very lightweight and stable vehicle component 1 is formed. As an alternative to the described stacking of the individual components one after the other in the mold, the carbon fibers CF and the glass fibers GF can each be first fixed in mat form on the respective side of the honeycomb structure layer 3, for example clipped thereto, and then with the

be foamed plastic AK sprayed, so that then this honeycomb composite in the cavity of the mold on the previously already arranged therein first

Cover layer 2 can be placed from glass. Thereafter, as already described, the mold is closed and the layers are as described by means of pressure and heat through the activated and thus driven plastic AK together.

In the exemplary embodiment illustrated in FIG. 2A, a color layer 6 is applied to the rear side of the first cover layer 2 made of glass. This can for example be printed or sprayed or applied in a so-called in-mold coating process. In this case, the first cover layer 2 is inserted into a mold, this is closed and applied color is introduced into a remaining cavity of the mold, so that in this way the back of the first cover layer 2 made of glass is coated with the paint. The others

Manufacturing steps for completing the vehicle component 1 are similar to the steps already described for the first embodiment.

The color-coated first cover layer 2 is introduced into or left in the cavity of the mold when the mold for applying the paint is already the mold. Subsequently, a layer of the foaming plastic AK, preferably polyurethane, sprayed onto the ink layer 6, then a layer of glass fibers GF is applied, for example in the form of a glass fiber mat on which the honeycomb layer 3 is placed, placed on the back of another layer of glass fibers GF, for example in Glasfasermattenform and sprayed with the foaming plastic AK. Thereafter, the mold is closed and the layers are pressed together by pressure and heat, whereby the foaming plastic AK is activated and expelled, so that it penetrates the glass fibers GF and connects with the honeycomb layer 3 and the color-coated first cover layer 2, as in Figure 2 B shown. As a result, the glass-fiber-reinforced plastic foam layers 5 are formed again. Alternatively, here too, the honeycomb structure layer 3 and the two layers

Glass fibers GF outside of the mold are connected to each other, for example by brackets, and the foaming plastic AK on the

Be sprayed glass fibers GF, so that the entire honeycomb composite can be introduced into the cavity of the mold and placed on the color coated first cover layer 2. The mold is then closed and the layers joined together as described. Trained in this embodiment, vehicle component 1 has a color optics, which by the first

Cover layer 2 is covered glass, with the already described for the first embodiment advantages.

In a further exemplary embodiment illustrated in FIGS. 3A to 3C, a layer of plastic K, preferably a film of ethylene vinyl acetate, is first applied to the rear side of the first cover layer 2 made of glass. Then a layer of carbon fibers CF is applied, preferably in the form of a mat or fabric, and a layer of plastic K is again applied thereon, again preferably in the form of a film of ethylene vinyl acetate. This layer part structure of the vehicle component 1 to be manufactured is laminated so that the layer is made of

Carbon fibers CF is impregnated with the melting plastic K. The plastic K then forms the matrix for the carbon fibers CF, so that a first plastic layer 4 which is materially bonded to the first cover layer 2 is formed, which in this embodiment is reinforced by a carbon fiber

Plastic layer is formed, as shown in Figure 3B. As a result, a layer of visible carbon is also achieved here, which is covered by the first cover layer 2, with the already described for the first embodiment advantages.

This laminate shown in Figure 3B is now placed in the mold and it is, as shown in Figure 3C, a layer of the foaming plastic AK, preferably polyurethane, sprayed onto the carbon fiber reinforced plastic layer, then a layer of glass fibers GF, for example, applied in the form of a glass fiber mat , on which the honeycomb structure layer 3 is placed, on the back of another layer of glass fibers GF, for example, placed in Glasfasermattenform and sprayed with the foaming plastic AK. Thereafter, the mold is closed and the layers are pressed together by pressure and heat, whereby the foaming plastic AK is activated and penetrates the respective glass fiber mat by foaming and partially penetrates into the honeycomb structure layer 3. This again forms the glass fiber reinforced Plastic foam layers 5 off. In addition, through the upper layer of the

foaming plastic AK the previously laminated layer composite with the

Honeycomb layer 3 cohesively and positively connected. This results in the completed vehicle component 1 shown in FIG. 3D in lightweight construction.

Alternatively, here too, the honeycomb structure layer 3 and the two layers of glass fibers GF outside the mold can be connected to each other, for example by clamping, and the foaming plastic AK on the

Glass fibers GF are sprayed on, so that the entire honeycomb composite can be introduced into the cavity of the mold and placed on the previously laminated layer composite. The mold is then closed and the layers joined together as described.

In a further embodiment illustrated in FIGS. 4A and 4B, the entire vehicle component 1 is produced by lamination. In this case, a layer of plastic K is first applied to the back of the first cover layer 2 made of glass, preferably a film of ethylene vinyl acetate. Then, a honeycomb structure layer 3 is applied, which is formed in this case made of plastic, preferably from

Polycarbonate in the form of parallel juxtaposed plastic tubes. These plastic tubes are aligned perpendicular to the first cover layer 2, so that a viewer of the vehicle component 1, which sees perpendicular to the first cover layer 2, can see through the plastic tubes in their axial direction. On a side facing away from the first cover layer 2 side of the honeycomb layer 3, a layer of plastic K is also applied, again preferably in the form of a film of ethylene vinyl acetate. This plastic K can be colored, for example. On this layer of plastic K, a second cover layer 7 is applied, which, for example, also made of glass, preferably from the chemically hardened glass of the first

Cover layer 2 is formed. Alternatively, this second cover layer 7 may also be formed of a plastic, expediently of a transparent or at least translucent plastic, for example of polycarbonate.

This layer structure is now connected to one another by lamination, whereby the plastic K melts from ethylene vinyl acetate and connects the honeycomb structure layer 3 with the respective cover layer 2, 7 in a material-locking and form-fitting manner. In this way, as shown in FIG. 4B, a semitransparent and / or at least translucent vehicle component 1 is produced in composite component fashion, the first covering layer 2 being formed over the plastic K which has been melted and resolidified first plastic layer 4 with the honeycomb structure layer 3 is materially and positively connected and the second cover layer 7 is connected via a second plastic layer 8, which also forms by the molten and resolidified plastic K, with the honeycomb structure layer 3 cohesively and positively. In this case, the two cover layers 2, 7 each form an outer side of the

Vehicle component 1. In this case, for example, the second cover layer 7 a

Interior of the vehicle to be facing and the first cover layer 2 faces an external environment of the vehicle.

Another embodiment of the vehicle component 1 is shown in FIG. In this embodiment, only a first plastic layer 4 is applied to the back of the first cover layer 2 made of glass, which is in the embodiment shown here, for example, polycarbonate. For this purpose, the first cover layer 2 is placed, for example, in an injection mold and back-injected with the plastic, so that the first plastic layer 4 is formed. The polycarbonate can for example

Be formed absorbing infrared radiation. Alternatively or additionally, the polycarbonate may be colored.

Such a vehicle component 1 may be formed, for example, as a roof window or part of such a roof window of a vehicle. It may be designed such that it is translucent, but that the absorption of infrared radiation, a strong heating of a vehicle interior is prevented. By the polycarbonate, a so-called hybrid glass component is formed, which has a low weight and a high breaking strength. Furthermore, it has on an outer surface the described advantages of the first cover layer 2 made of glass. In addition, it has the advantages of the polycarbonate, d. H. the colorability and the

Infrared radiation absorption. In this case, the first cover layer 2 and the first plastic layer 4 each form an outer side of the vehicle component, for example, the first plastic layer facing an interior of the vehicle and the first cover layer 2 faces an outer environment of the vehicle.

The method described with reference to the exemplary embodiments illustrated here makes it possible to produce high-quality vehicle parts 1 that are easy to implement, fast and cost-effective, and that have a high-quality visual appearance. This is achieved in particular by the first cover layer 2, which is formed from the chemically hardened glass with a thickness of up to one millimeter. This glass, also referred to as tempered glass and / or thin glass, allows a very smooth high quality surface structure of the vehicle component 1, which can not be achieved by clearcoat. In particular, a marking of a honeycomb structure of the honeycomb structure layer 3 on a surface of the vehicle component 1 is prevented by the first cover layer 2 of glass. In addition, an optical depth effect on underlying layers is achieved by the first cover layer 2 of this glass, for example, on the color layer 6 or on the formed in the manner described Sichtcarbon. Furthermore, the vehicle component 1, in particular the respective layer responsible for the visual impression, is protected against the effects of weather and ultraviolet radiation by the first cover layer 2 made from this glass. In the manner described, a vehicle component 1 can be manufactured as a three-dimensional lightweight component in a single process step or in a few process steps as a tool.

The component and method according to the invention are not limited to the exemplary embodiments illustrated here but can be transferred to others. Thus, e.g. the mentioned color printing layer instead of the back of the first cover layer, e.g.

Glass layer, also be applied to the foamed plastic AK.

LIST OF REFERENCE NUMBERS

1 vehicle component

2 first cover layer

3 honeycomb structure layer

4 first plastic layer

5 glass fiber reinforced plastic foam layer

6 color coat

7 second cover layer

8 second plastic layer

AK foaming plastic

CF carbon fibers

GF glass fibers

K plastic

Claims

claims

A vehicle component (1), which is formed from a plurality of layers, wherein at least a first cover layer (2) is formed from glass,

characterized in that the first cover layer (2) is formed on a visible side of the vehicle component (1), wherein the glass of the first cover layer (2) is a chemically tempered glass, which is formed as an alkali aluminosilicate glass and wherein the first cover layer ( 2) from the chemically hardened glass has a layer thickness of up to one millimeter.

2. Vehicle component (1) according to claim 1,

characterized in that a first plastic layer (4) or a color layer (6) is arranged on a rear side of the first cover layer (2) remote from the visible side.

3. vehicle component (1) according to claim 2,

characterized in that the first plastic layer (4) as a

carbon fiber reinforced plastic layer or as a carbon fiber reinforced plastic foam layer is formed.

4. Vehicle component (1) according to one of the preceding claims,

characterized by a honeycomb structure layer (3).

5. Vehicle component (1) according to claim 4,

characterized in that on one of the first cover layer (2) facing side of the honeycomb structure layer (3) has a glass fiber reinforced

Plastic foam layer (5) is arranged.

6. Vehicle component (1) according to claim 4 or 5,

characterized in that on one of the first cover layer (2) opposite side of the honeycomb structure layer (3) a glass fiber reinforced

Plastic foam layer (5) or a second plastic layer (8) and thereon a second cover layer (7) is arranged made of a chemically hardened glass.

Method for producing a vehicle component (1) according to one of Claims 1 to 6, the vehicle component (1) being formed from a plurality of layers, and a first cover layer (2) made of a chemically hardened glass having a layer thickness of up to one Has millimeter, wherein the glass of the first cover layer (2) is formed as an alkali aluminosilicate glass, is connected to one or more further layers cohesively and / or positively.

Method according to claim 7,

characterized in that a first plastic layer (4) or a color layer (6) is applied to a rear side of the first cover layer (2) remote from the visible side.

Method according to claim 8,

characterized in that a honeycomb core (3) is materially and / or positively connected to the first cover layer (2), the first plastic layer (4) or ink layer (6) and further layers.