WO2012152926A1

WO2012152926A1 - Fixing two profiled components to one another

Info

Publication number: WO2012152926A1
Application number: PCT/EP2012/058789
Authority: WO
Inventors: Bernd-Arno Behrens; Sven HÜBNER; Jürgen ROSENBERGER
Original assignee: Gottfried Wilhelm Leibniz Universität Hannover
Priority date: 2011-05-12
Filing date: 2012-05-11
Publication date: 2012-11-15
Also published as: DE102011101423B4; DE102011101423A1

Abstract

The invention relates to a method for fixing at least two profiled components (1, 2) to one another, a first profiled component (1) having an inner receiving region (3), formed by its profile, for receiving a second profiled component (2), said inner receiving region (3) having an inner profile contour (5), the second profiled component (2) having an outer profile contour (6) which corresponds substantially to at least one region of the inner profile contour (5) of the first profiled component (1), and the second profiled component (2) being arranged in the inner receiving region (3) of the first profiled component (1). One or more depressions (8) are introduced into the first profiled component (1) by means of deformation from the outer side (7), such that one or more protuberances (9) are produced on the inner profile contour (5), the second profiled component (2) being fixed to the first profiled component (1) by means of said protuberance (9) or protuberances (9). In addition, the invention relates to a component which is produced according to such a method and comprises at least one first and one second profiled component, and also to a production tool for producing such a component.

Description

Attachment of two profile components to each other

The invention relates to a method for fastening two profile components to each other according to claim 1. The invention further relates to a component produced by such a method with at least one first and one second profile component according to claim 16. The invention further relates to a production tool for producing such a component according to claim 17.

Generally, the field relates to the attachment of two profile components together. The profile components can thereby in a common manufacturing step, for. B. a deep drawing step, are brought into the profiled shape. The profile components can also be produced separately in different production steps, possibly with different manufacturers. An advantageous field of use of the invention are support structures in motor vehicles. These have for reinforcement in profiled support components often arranged therein reinforcing elements, which are inserted into the inner profile contour of the support member and z. B. are attached thereto by bonding. In this case, among other things, the problem arises that a profile component used in the support member dissolves again when not yet solidified adhesive, z. B. as a result of a rebound effect of the profile component. Even with already solidified adhesive, the inner profile component can solve in the course of the manufacturing process of a motor vehicle, because at certain stages of the adhesive can be liquefied again or correspondingly high forces can act on the component composite.

Against this has been remedied, inter alia, that the components verclincht each other, welded or bolted. However, such steps require additional process steps during production, which is undesirable for cost reasons. In addition, a z. B. caused by welding process microstructure of the material often undesirable.

The invention has for its object to provide a method for fixing two profile components together, which allows a more rational and cost-effective production of components. Furthermore, a corresponding component with at least one first and one second profile component and a production tool for producing such a component should be specified.

This object is achieved according to claim 1 by a method for fastening two profile components together, wherein a first profile component has an inner receiving area formed by its profile for a second profile component, wherein the inner receiving area has an inner profile contour and the second profile component has an outer profile contour, which essentially corresponds to at least one region of the inner profile contour of the first profile component, wherein the second profile component is arranged in the inner receiving region of the first profile component, characterized in that one or more indentations are introduced into the first profile component from the outside by deformation, in such a way in that one or more protuberances arise on the inner profile contour, and the second profile component is fastened to the first profile component by means of the protuberance or the protuberances.

A profile component is to be understood as meaning a component with a non-closed profile-like cross section. Under cross section is the cross section to the main expansion direction of the component to understand.

The invention has the advantage that the second profile component in the first profile component can be positioned at the desired location and this Position can be "frozen" so to speak, with an intermediate step which can easily be inserted into a production process. In other words, the second profile component is clamped in the first profile component by means of the protuberance or the protuberances so to speak, and thus fixed to the first profile component. As a result, a centering of the second profile component in the first profile component is possible without any spring-back mechanisms that may occur have adverse effects.

The invention has the advantage that the two profile components without adverse structural influences, such. B. by welding points o. Ä., Can be attached to each other solely by the production of the indentation or the recesses. The formations as transformations even contribute to the stiffening and thus to the reinforcement of the first profile component and thus of the entire component produced from the two profile components. The formation of indentations has the further advantage that such a manufacturing step can be readily integrated into existing procedures in the manufacture of components, for. For example, in a deep-drawing process. Thus, it is possible with the method according to the invention, in a production step, to connect the two profile components with one another in a form-fitting manner by means of the indentations. In the same manufacturing step, for. B. a deep drawing step, the shape of the profile components can be generated by z. B. a blank of flat material, the z. B. is formed by two superimposed sheets are deep-drawn in a thermoforming machine and at the end of the thermoforming process, the recesses are introduced from the outside into the first profile component.

However, the invention is also advantageous for the attachment of the second profile component to the first profile component, if these profile components are not manufactured in the same manufacturing process. In particular, the invention can also be used advantageously in cases in which already the first and / or the second profile component finished with the respective profile are made and only then the attachment between the profile components by means of the protuberances. In an advantageous embodiment of the method, which will be explained in more detail below, the profile components can also be made quasi simultaneously with the protuberances, namely in a Gleitziehbiegeprozess.

Compared to an attachment by clinching the carrying capacity of the attachment of the second profile component to the first profile component can be significantly improved. Compared to welding, undesirable microstructural influences are avoided. By means of the recesses and protuberances, the second profile component can be centered and fixed in the desired position in the first profile component at the same time. In this case, clamping forces can be absorbed in three spatial directions to counteract springback mechanisms. Compared to the screws no auxiliary joining parts are needed and further process steps are not required.

The invention is suitable for all types of profile components. In particular, the use of open profile components for the first and / or the second profile component is advantageous. According to an advantageous development of the invention, the first profile component consists of a deformable material or has at least in the areas in which moldings are to be formed, a deformable material. As a formable material all metal materials come into question. So z. B. be the first profile component a sheet metal component. The second profile component may also be formed as a sheet metal component, or z. B. also be a fiber composite component and vice versa. The first profile component and the second profile component can be made, for example, of material-different sheets.

In particular, the invention is also suitable for the connection of profile components made of sheets of different, in itself poorly connectable materials are made, such. B. non-weldable sheets or components that are generally not suitable for a welding ßprozess.

The invention is suitable for. For example, for manufacturing processes in which multi-layer sheets are used for reinforcement purposes. The invention is particularly suitable for mounting further profile components together, z. B. of three or four profile components together.

The second profile component can be arranged partially or completely in the inner receiving region of the first profile component. If the second profile component is arranged completely in the inner receiving region of the first profile component, it is completely surrounded by the first profile component. Otherwise, the second profile component can also protrude from the first profile component. If z. B. the first profile component is a U-shaped support member, the second profile component may be formed as a U-shaped profile component with a greater length than the first profile component.

The arranged in the inner receiving portion of the first profile component second profile component has in this area an outer profile contour, which may correspond substantially to the inner profile contour of the first profile component. According to an advantageous development of the invention, the outer profile contour of the second profile component bears against the inner profile contour of the first profile component.

In general, the method according to the invention is suitable for fastening the two profile components to one another without additional adhesion promoters between the profile components. The method is also suitable for use cases, eg. Example, in the field of production of motor vehicle components, in which an adhesive is provided between the first and the second profile component to a particularly robust surface connection between to ensure the profile components in later operation.

The invention is suitable for applications in which electrical contact between the first profile component and the second profile component is to be avoided. In this case, between the first and the second profile component an insulating material, such as. As an adhesive provided. The indentations are then made such that the insulating material layer is not damaged by the protuberances. Thus, the protuberances can be arranged with a slight distance from the metal of the second profile component in the first profile component or the insulating adhesive layer can be applied over a large area.

The invention is also suitable for applications in which an electrical contact between the first and the second profile component is desired, for. B. if the component is then to be supplied to a cathodic Tauchbadlackierung. In this case, the recesses are introduced closer to the end edge of the second profile component to the first profile component, so that the resulting protuberances penetrate a possibly existing insulation material layer and get into mechanical and electrical contact with the second profile component.

The second profile component may be attached to the first profile component by means of the protuberance or the protuberances non-positively or positively. With force-fitting attachment, the second profile component is held on the first profile component by the protuberances by friction. According to an advantageous development of the invention, the second profile component is fastened in a form-fitting manner to the first profile component by means of the protuberance or the protuberances. This allows a particularly stable and durable fixation.

According to an advantageous development of the invention, the inputs Forming or the recesses in the region of the end edges of the second profile component or in the region of recesses of the second profile component introduced into the first profile component. If the second profile component already has one or more recesses, these can also be used for fastening by means of the indentations and protuberances. This already results in a robust form-fitting attachment between the profile components. Alternatively or additionally, the recesses can be provided in the region of the end edges of the second profile component, so that the second profile component is held by means of the protuberances at its end edges.

The indentation or the indentations can be produced as a local deformation and / or as a deformation of larger areas or the entire extent of the first profile component. It is also possible to use moldings by means of local forming and forming larger areas in combination. As a result, the method can be used very flexibly. In the case of forming larger areas z. B. a molding in the manner of a fold of the first profile component along its longitudinal direction may be provided. According to an advantageous development of the invention, the indentation or the indentations can be formed in a deep-drawing process by means of a deep-drawing tool. In this case, a thermoforming tool with a variable width of the thermoforming die is advantageously used. It can, for. B. be provided that the thermoforming die has displaceable jaws in the transverse direction, for the preparation of the recesses at the end of the deep drawing operation, d. H. upon reaching the bottom dead center of the deep-drawing die, are moved toward each other and here produce a indentation or multiple indentations in the first profile component as a result of a corresponding profiling of the jaws.

The indentation or the indentations can in principle be an arbitrary ge form, z. B. round, oval, V-shaped or otherwise. According to an advantageous embodiment of the invention, the indentation or the indentations are formed as elongated beads. This has the advantage of greater carrying capacity of the positive fastening in comparison to punctiform indentations. In addition, the first profile component undergoes by elongated beads a greater reinforcing effect than z. B. by punctiform indentations.

According to an advantageous embodiment of the invention, the beads extend obliquely to the end edges of the second profile component. So z. B. beads are respectively arranged at corners of the second profile component at an angle to the end edges. The angle to be provided depends on the particular geometry of the profile components and the loading situation, wherein generally an angle of approximately 45 ° to the end edges represents an advantageous value. If the second profile component is loaded more strongly than the first profile component in a first coordinate direction than in a second coordinate direction orthogonal thereto, it is favorable to arrange the beads such that their longitudinal direction is orthogonal to the force acting direction resulting from the two force components.

According to an advantageous development of the invention, the second profile component has bevelled areas at the end edges. The indentations or the indentations are arranged in the region of the chamfered areas. Insofar as the indentations are beads, they extend in an advantageous development of the invention in the same direction as the bevelled areas. The angular position of the chamfered areas can also be selected orthogonal to the effective directions of the resulting forces in a given load situation of the second profile component relative to the first profile component, as explained above with respect to the beads.

According to an advantageous development of the invention, the inputs formation or the recesses in the region of corners of the second profile component introduced into the first profile component. This has the advantage that with a small number of indentations already a complete positive fixing of the second profile component in the first profile component in all spatial directions is possible. So z. B. in a square second profile component in each case an elongated bead are formed obliquely to the end edges at each of the four corners of the second profile component in the first profile component. As a result, the second profile component is completely fixed positively.

The protuberances formed by the indentations can in principle have any extension to the inside of the first profile component. In particular, the extension height can be greater than the material thickness of the second profile component. According to an advantageous development of the invention, one, several or all protuberances to the inside of the first profile component do not extend further than the material thickness of the second profile component. This has the advantage that the second profile component on the first profile component z. B. can be formed during a common deep-drawing process of both components without undercuts. As a result, a standard thermoforming tool can be used.

According to an advantageous development of the invention, the first profile component is glued to the second profile component in the region in which the second profile component is arranged in the inner receiving region of the first profile component. In particular, an electrically insulating adhesive can be used, for. B. to avoid contact corrosion between the first and the second profile component. The bonding also improves the robustness and crash safety of the component formed from the first and the second profile component.

According to an advantageous development of the invention, the first Filbauteil formed with the second profile component together in a common deep-drawing process in which the inner profile contour of the first profile component and the outer profile contour of the second profile component having shape, whereby the second profile component is arranged in the inner receiving region of the first profile component. This allows a particularly efficient production of components in the automotive sector, eg. B. for body-carrier components with reinforcing plates used.

According to an advantageous embodiment of the invention, the indentation or the indentations are introduced during the deep-drawing process. Advantageously, the indentations can be introduced in particular at the end of the deep-drawing process, when the deep-drawing die is arranged at least approximately at bottom dead center.

According to an advantageous embodiment of the invention, it is provided that the first and the second profile component are bent in a common Gleitzieh bending process from Rohbauteilen in the provided with the inner or outer profile contour shape.

According to an advantageous embodiment of the invention, it is provided that after the slip bending process or during the Gleitziehbiege- process, the one or more indentations are introduced from the outside into the first profile component and attached by the resulting one or more protuberances, the second profile component to the first profile component is.

According to an advantageous embodiment of the invention, it is provided that by means of the Gleitziehbiegeprozesses indentations in the form of Längssicken extending in the longitudinal direction of the advance of the profile components in a Gleitziehbiegeprozess be generated.

The said developments of the invention allow z. For example, the of double-layered metal sheets within a sliding-bending process.

As a result, the increasing desire for individual manufacturing processes or for the fulfillment of special customer requirements in the entire industry can be accommodated. These developments are particularly suitable for the production of very small batches, the production of a lot size 1 and for the "rapid prototyping", whereby such manufacturing processes no longer represent exceptions, but are an integral part of industrial production.

Under the Gleitziehbiegen one understands a method for bending forming, which is particularly suitable for small numbers, as specified in DIN 8586. When Gleitziehbiegen a bending of metal strips or strips to profiles is done by pulling through at least one mold. The mold or the molds are usually formed in two parts of a die and a complementary punch, which is located between these mold halves of the drawing gap. This drawing gap has the cross-sectional profile of the first and the second profile component to be generated. The blanks, from which the first and the second profile component are produced, are pulled together through the drawing gap and brought into the desired cross-sectional profile. When drawing the strip material through the drawing gap, its progressive transformation takes place to the drawing profile to be produced.

Such a connection technology between a first and a second profile component has great advantages over other manufacturing processes, for. As the production of sandwich components whose production is still associated with the use of additional joining media, adhesives or solders, which are introduced between the components, with considerable effort. So describes z. For example, EP 2 147 958 a method for producing a sandwich component from a cold strip. DE 10 2005 031 437 A1 discloses a device for forming, in particular for Gleitziehbiegen a band-shaped workpiece. EP 0 908 251 A1 discloses a device for the sliding bending of strips into profiles. However, according to the prior art, the production of sandwich components is always associated with the use of joining media, such as adhesives, solders or the like.

According to the advantageous developments of the invention described above, two plates are provided in departure from the prior art and fed to a Gleitziehbiegewerkzeug. This z. B. during the Gleitziehbiegevorgangs or immediately after the indentations are generated, so that the first and the second profile member are connected by the protuberances. By Gleitziehbiegevor- gang z. B. longitudinal beads are generated, which connect the two profile components together positively and non-positively.

This is achieved by the introduction of the indentations, z. B. in the form of beads, created during a Gleitziehbiegeprozesses a connection between the two sheets. It is Z. As advantageous to produce the recesses by running and impinged on rollers of a production tool of Gleitziehbiegeprozesses, which are mounted in the die. These roles can z. B. rotationally symmetric to produce long beads. In a further embodiment, the rollers can also be designed segmented over the roller circumference. As a result, advantageously length-limited, repetitive bead sections can be produced, for. B. similar to a seam in textile materials. As a result of the last-mentioned further development, it is possible, in particular, to produce an improved form fit in the profile longitudinal direction.

In summary, it can be stated that this is one for small Quantities designed method for the production of double sheet metal profile components is specified.

The object mentioned at the outset is also achieved by a component according to claim 16, having at least one first and one second profile component, produced by a method of the type described above, wherein the first profile component has one or more recesses introduced from the outside by deformation and the second profile component to the first profile component by means of one or more protuberances, which protrude on the inner profile contour as a result of the indentations, is attached. The attachment by the protuberances may be positive or non-positive. Particularly advantageous is the positive attachment. The component may further comprise the aforementioned component-specific features of the first and second profile components as produced by the methods according to claims 1 to 15.

The above-mentioned object is further achieved by a production tool according to claim 17, for producing a component according to claim 16 by a method of the type described above.

According to an advantageous development of the invention, it is provided that the production tool has temporary fixing means for fixing the second profile component in the inner receiving region of the first profile component, and the production tool has one or more injection molds for forming the indentations into the first profile component to mold. The production tool may in particular have the production tool-specific features, as explained above with reference to the method steps.

The indentations or the beads can be produced by an insertion tool or a squeegee, which can be part of the production tool. According to an advantageous embodiment of the invention, it is provided that the production tool has a thermoforming die, which has at least one displaceable jaw, which is displaceable transversely to the direction of movement of a thermoforming die of the production tool. It can be provided, for example, two displaceable jaws, which are displaceable transversely to the direction of movement of a thermoforming stamp of the production tool. This has the advantage that corresponding recesses in the first profile component can be generated directly during the thermoforming process by means of said production tool, without additional elements such. B. a bead pusher or a temporary fixing agent is required. The fixation of the component can then be done by the thermoforming punch.

According to an advantageous embodiment of the invention it is provided that the production tool is designed as Gleitziehbiegewerkzeug or has a Gleitziehbiegewerkzeug.

According to an advantageous embodiment of the invention it is provided that the production tool with the drawn by the production tool component and having acted upon rollers, which are adapted to produce longitudinal beads in the first and second profile component.

The invention will be explained in more detail by means of embodiments using drawings.

Show it:

Figure 1 shows a component with two profile components in perspective and Figure 2 shows a section through the component according to Figure 1 before mounting and

Figure 3 shows the section according to Figure 2 after attachment and

Figure 4, the introduction of a molding and

characters

5 to 7 different embodiments of the indentations

characters

8 to 1 1, the production of a component with indentations in one

Manufacturing tool with movable jaws.

In the figures, like reference numerals are used for corresponding elements.

1 shows a perspective view of a component, for. B. a carrier for a motor vehicle having a first profile component 1 and a second profile component 2. The first profile component 1 may be a sheet metal component produced by deep drawing. The second profile component 2 may be a reinforcing plate for reinforcing the first profile component 1. The first and the second profile component 1, 2 may, for. B. in a common deep-drawing process in the illustrated form. The component may in particular be a multi-layer sheet, which may also comprise more than two sheet metal layers.

The second profile component 2 is arranged in an inner receiving region 3 of the first profile component 1. With the dotted box 4 is shown a sectional plane, will be described in the following with reference to Figures 2 and 3, further details of the component of Figure 1. The cutting plane 4 runs in accordance with the coordinate shown. system in a YZ plane.

In the figure 2, the above-mentioned Rückfederproblematik is reproduced, which occurs when the second profile member 2 is simply used without further attachment in the first profile component 1. As a result of a spring effect, the second profile component 2 does not remain in the desired desired position at the bottom of the inner receiving area 3, but automatically lifts itself slightly in accordance with the arrows shown.

In addition, FIG. 2 shows by a reference numeral 5 the inner profile contour of the first profile component 1. A reference numeral 6 indicates the outer profile contour of the second profile component 2. A reference numeral 7 indicates the outside of the first profile component 1.

FIG. 3 shows a positive fastening of the second profile component 2 to the first profile component 1 by positive connections. First, the second profile component 2 by a temporary fixing agent, for. B. a stamp 12, placed in the desired position and temporarily fixed there. If the component is produced from the first and the second profile part 1, 2 in a common deep-drawing process, the deep-drawing die can also serve as a temporary fixing agent. The first profile component 1 is supported on an abutment 13, z. B. on the lower tool of a thermoforming tool.

According to FIG. 3, after the second profiled component 2 has been fixed by the temporary fixing means 12, an indentation 8 is introduced from the outside 7 in each case on the left and on the right side of the first profiled component 1. As a result of the relatively thin material of the first profile component 1, the indentation 8 leads to a protuberance 9 on the inner side 5 of the first profile component 1. The indentation 8 or the protuberance 9 is arranged such that the protuberance 9 comes into contact with an end edge 10 or corner of the second profile component and thus positively engages the second Profile component 2 fixed in the receiving area 3.

In the figure 3 a section 1 1 is marked. This is shown enlarged in the figure 4. FIG. 4 shows the introduction of a molding 8 with further details. For the preparation of the indentation 8 is a Einformwerkzeug 15, z. B. a beading slide, driven from the outside 7 forth at the desired location against the first profile member 1 and thereby advanced so far until a desired Einformtiefe corresponding to a desired height of the protuberance 9, is reached. Here, the second profile component 2 from its inside by a holder 14, z. B. a beading die, supported against the force applied by the Einformwerkzeug 15 force. After the indentation 8 or the indentations 8 have been produced, the molding tool 15 and the holding tool 14 are then removed. If the indentations 8 are produced in the course of a deep-drawing process of both profile components 1, 2, the deep-drawing die can simultaneously serve as a holder 14 in a position at bottom dead center or near bottom dead center.

Various embodiments of the indentation 8 are shown by way of example in FIGS. 5 to 7, wherein the first profile component 1 is shown in a side view with a viewing direction in the direction of the Y-axis. The arranged in the receiving area 3 second profile member 2, which is not visible per se, is shown in dashed lines.

According to Figure 5, the indentations are formed as elongated beads 17 which are formed in the region of the corners 16 of the second profile member 2, wherein the corners 16 are formed on each abutting end edges 10 of the second profile member 2. The elongated beads 17 are advantageously arranged obliquely to the end edges 10. As a result, a simple and fast form-fitting fixation of the second profile component 2 is realized both in the Z direction and in the X direction. 6 shows an embodiment of the second profile component 2 with a V-shaped notch on the upper end edge 10 and with a recess 20. The recess 20 and the notch 18 are shown here only as an example on the same second profile component 2, in practice ranges to form-fitting fixation and the provision of either the notch 18 or the recess 20. In the region of the V-shaped notch 18, a V-shaped bead 19 is formed in the first profile member 1, z. B. in the form of two V-shaped adjacent elongated beads. In the region of the recess 20 a indentation 21 is formed in the first profile component 1, z. B. in an oval shape.

According to FIG. 7, the second profile component 2 has chamfered regions 22 at the end edges 10. In the region of the chamfered areas 22 1 formations in the form of elongated beads 23 are formed in the first profile member 1, which correspond in length to the length of the tapered portions 22 in terms of their length as shown in Figure 7, but in practice also be formed longer or shorter can.

With reference to FIGS. 8 to 11, the production of a component with the first profile component 1 and the second profile component 2 is described by means of a production tool with which both a deep-drawing process and the introduction of the indentations can be carried out. Here, Figure 8 shows the state after performing the deep drawing step, d. H. a state where a deep-drawing die 80 has reached its bottom dead center. FIG. 9 shows the arrangement according to FIG. 8 in an isometric view. FIG. 10 shows a step following the production step according to FIG. 8, in which the production tool is opened again and the component can subsequently be removed. FIG. 11 shows the arrangement according to FIG. 10 in an isometric view.

The production tool according to FIGS. 8 to 11 has a deep-drawn Stamp 80 and one of z. B. two movable jaws 81, 82 and a wedge slide 83 formed Tiefziehmatrize. The jaws 81, 82 are displaceable in the transverse direction, as indicated in Figure 10 by the arrows pointing to the left and right. The case at the bottom of the thermoforming die, ie at the bottom of the two jaws 81, 82 resulting variable gap is compensated by the wedge slide 83. Due to the wedge slide 83, the production tool is also given sufficient stability.

The production of a component with the profile components 1, 2, as can be seen for example in FIG. 10, can be carried out as follows with the production tool according to FIGS. 8 to 11. First, the jaws 81, 82 and the wedge slide 83 are in the open state shown in Figure 10. The deep-drawing punch 80 has not moved between the jaws 81, 82, but is outside this range. Then z. B. two sheet metal blanks, from which the first and the second profile component 1, 2 are to be formed, positioned on the production tool. The deep-drawing die 80 is moved into the thermoforming die, ie between the jaws 81, 82. Here, the sheet metal blanks are first brought into the pure deep-drawn shape, ie the recesses 8 and protuberances 9 are initially not available. Then, the jaws 81, 82 are moved in the direction of the deep-drawing die 80, wherein the wedge slide 83 is moved accordingly downward. The protruding areas 85, 86 of the jaws 81, 82 then bring the indentations 8 into the first profile component 1, so that the protuberances 9 form, by means of which the second profile component 2 is fastened to the first profile component 1. This state is shown in FIG. Subsequently, the jaws 81, 82 are continued by the deep-drawing die 80, wherein the wedge slide 83 is moved in the direction shown by the arrow in Figure 10. In addition, the deep-drawing die 80 is removed again. Then the resulting component can be removed. It is advantageous that by the described production tool in the same way as required indentations by local deformation, z. B. in the form of beads, as well as by larger-scale deformation, z. B. in the form of bends can be produced. Any combination of local and non-local transformations can also be produced in one production step.

Claims

claims:

1 . Method for fastening at least two profile components (1, 2) to one another, wherein a first profile component (1) has an inner receiving region (3) formed by its profile for a second profile component (2), wherein the inner receiving region (3) has an inner profile contour ( 5) and the second profile component (2) has an outer profile contour (6) which substantially corresponds to at least one region of the inner profile contour (5) of the first profile component (1), wherein the second profile component (2) in the inner receiving region (3) of the first profile component (1) is arranged, characterized in that in the first profile component (1) from the Au ßenseite (7) forth by forming one or more recesses (8) are introduced, such that on the inner profile contour (5) one or more protuberances (9) arise, and the second profile component (2) on the first profile component (1) by means of the protuberance (9) and the protuberances (9) is attached.

2. The method according to claim 1, characterized in that the second profile component (2) on the first profile component (1) by means of the protuberance (9) and the protuberances (9) is positively secured.

3. The method according to claim 1 or 2, characterized in that one or more recesses (8, 21) in the region of the end edges (1 0) of the second profile component (2) or in the region of recesses (1 8, 20) of the second profile component (2) in the first profile component (1) are introduced.

Method according to one of the preceding claims, characterized in that the indentation (8) or the indentations (8) are produced as local deformation and / or as reshaping of larger areas or the entire extent of the first profile component (1).

Method according to one of the preceding claims, characterized in that the indentation (8) or the indentations (8) as elongated beads (1 7, 1 9, 23) are formed.

A method according to claim 4, characterized in that the beads (1 7, 1 9, 23) extend obliquely to the end edges (1 0) of the second profile component (2).

Method according to one of the preceding claims, characterized in that the second profile component (2) at the end edges (1 0) has chamfered areas (22) and the indentation (8, 23) or the recesses (8, 23) in the region of beveled portions (22) are arranged.

Method according to one of the preceding claims, characterized in that the indentation (8, 1 7) or the indentations (8, 1 7) in the region of corners (1 6) of the second profile component (2) in the first profile component (1) be introduced.

Method according to one of the preceding claims, characterized in that one, several or all protuberances (9) to the inner side (5) of the first profile component (1) do not extend beyond the material thickness of the second profile component (2).

1 0. The method according to any one of the preceding claims, 5 characterized in that the first profile component (1) with the second profile component (2) in the region in which the second profile component 2) in the inner receiving area (3) of the first Profile component (1) is arranged, is glued. i o 1 1. Method according to one of the preceding claims, characterized in that the first profile component (1) with the second profile component (2) together in a common deep-drawing process in which the inner profile contour (5) of the first profile component (1) and the externa ßere profile contour (6 ) of zwei¬

In this way, the second profile component (2) is arranged in the inner receiving area (3) of the first profile component (1).

1 2. The method of claim 1 1, characterized in that

20 the indentation (8) or the indentations (8) during the

Deep drawing process can be introduced, in particular to the end of the deep drawing process, when the deep-drawing die is arranged at least approximately at the bottom dead center.

25 3. The method according to any one of the preceding claims, characterized in that the first and the second profile component (1, 2) bent in a common Gleitziehbiegeprozess of raw components in the with the inner or externa ßeren profile contour (5, 6) provided shape become.

30

1 4. The method of claim 1 3, characterized in that after the Gleitziehbiegeprozess or during the Gleitzieh- bending process, the one or more recesses (8) from the Au ßenseite in the first profile component (1) are introduced and by the resulting one or more protuberances (9), the second profile component (2) on the first profile component (1) is attached.

A method according to claim 1 3 or 1 4, characterized in that by means of Gleitziehbiegeprozesses indentations (8) in the form of Längssicken extending in the longitudinal direction of the advance of the profile components (1, 2) in the Gleitziehbiege- process generated.

Component with at least one first and one second profile component (1, 2) produced by a method according to one of the preceding claims, wherein the first profile component (1) has one or more recesses (8) introduced from the outside (7) by deformation. and the second profile component (2) on the first profile component (1) by means of one or more protuberances (9) which protrude on the inner profile contour (5) due to the recesses (8) is attached.

Production tool, set up for producing a component according to claim 1 6 according to a method according to one of claims 1 to 1 5.

Production tool according to claim 1 7, characterized in that the production tool has temporary fixing means (1 2) to fix the second profile component (2) in the inner receiving area (3) of the first profile component (1), and the production tool one or more injection molds (1 5) to the indentation (8) or the indentations (8) in the first profile member (1) mold.

1 9. A manufacturing tool according to claim 1 7, characterized in that the production tool has a thermoforming die (81, 82, 83) which has at least one displaceable jaw (81, 82) transversely to the direction of movement of a thermoforming punch (80) of the production tool slidably is.

20. Production tool according to claim 1 7, characterized in that the production tool is designed as Gleitziehbiegewerkzeug or has a Gleitziehbiegewerkzeug.

21. Production tool according to claim 20, characterized in that the production tool has with the drawn by the production tool component running and acted upon by rollers, which are adapted to Längssi- sets in the first and second profile component (1, 2) to produce.