Method for producing a combination profile

Abstract

The invention relates to a method for producing a combination profile (1) having a polymer main profile (2). At least one functionalizing element (3) is attached to the main profile (2) by way of a preferably mobile plastic injection molding process.

Description

[0001] Method for producing a combination profile

[0002] The invention relates to a method for producing a combination profile with a polymeric base profile and a functionalizing element attached thereto.

[0003] Polymer profiles can be manufactured cost-effectively at very high production speeds, for example by extrusion. However, the geometric design freedom of an extruded profile is limited due to the process. As a rule, this is a continuous product with a constant cross-sectional profile. If such a product is to be equipped with additional functions, for example a fastening or connecting element or the like, further process steps are usually required in addition to the extrusion. For example, DE 10 2005 002 750 A1, which discloses a method with the features described above, discloses first extruding a continuous plastic strand, then cutting this to length to produce a strip blank, and then hot-forming an end section of this blank in a tool mold. In this process, a functional component is injection-molded onto the strip blank.Although this process allows the desired functionalization of the endless profile, it is comparatively complex and therefore cost-intensive.

[0004] Against this background, the object of the invention is to provide a method with the features described above, which can be carried out cost-effectively at high production speed.

[0005] According to the invention, the object is achieved by a method for producing a combination profile with a polymeric base profile and at least one functionalization element attached to the base profile by means of a preferably mobile plastic injection molding process. It is within the scope of the invention that a plurality of functionalization elements, in particular at least 2, at least 5 or at least 10 functionalization elements, are attached to the base profile. The polymeric base profile can be endless. However, a non-endless embodiment of the base profile is also within the scope of the teaching of the invention. The plastic injection molding process is expediently carried out using an injection molding unit which, for example, comprises at least one injection mold and a device for injecting plastic melt into this injection mold.The attachment of the functionalization element to the base profile can be carried out in particular by means of a material fit, but alternatively also by means of a form fit or friction fit.

[0006] To carry out the mobile plastic injection molding process, a movable injection molding unit, preferably mounted on a robot, is preferably used. The injection molding unit is expediently mounted on a C-frame, as described, for example, in DE 10 2019 202 513 A1. The C-frame, in turn, is preferably arranged on the robot and moved by it. As an alternative to a robot, another system can also be provided that moves the injection molding unit during the injection molding process, in particular in accordance with the production speed of the base profile, for example, a gantry system with, for example, linear drives.

[0007] According to a preferred embodiment of the invention, the injection molding unit is moved online during an injection molding process at the production speed of the continuously produced base profile. The production speed of the base profile is preferably 0.5 to 5 m / min, in particular 1 to 3 m / min. This ensures, in particular, that the injection molding unit is constantly located at the same location on the base profile during an injection molding process, thus enabling a clean injection molding process.

[0008] The injection volume in the plastic injection molding process is preferably 1 to 70 cm 3 , especially 5 to 50 cm 3. However, this does not rule out the possibility of other volumes. Comparatively large volumes are particularly possible when the production speed of the base profile is low. In this case, a comparatively long cycle time can be selected for the injection molding process without the corresponding injection molding unit having to travel an excessively great distance during this time. The cycle time of the plastic injection molding process is preferably 5 to 50 seconds, in particular 15 to 30 seconds. Cycle time here refers to the time required to produce a single functionalization element. During this time, the corresponding injection molding unit is expediently moved at the production speed of the base profile in the corresponding production direction so that there is no relative movement between the area of ​​the base profile to which the functionalization element is attached and the injection molding unit.This allows for a perfect attachment of the functionalization element to the base profile.

[0009] According to a preferred embodiment of the invention, a plurality of functionalization elements are attached to the base profile at a distance from one another in the longitudinal direction of the base profile, and their spacing, viewed in the longitudinal direction of the base profile, is, for example, 50 to 700 mm, in particular 100 to 500 mm. In particular, the spacing of the functionalization elements can be constant in the longitudinal direction of the profile, i.e., the functionalization elements are attached equidistantly along the base profile. Depending on the application, the base profile can then be cut to length, so that one or more functionalization elements, e.g., at least 2, at least 5, or at least 10, are attached to the correspondingly separated base profile.

[0010] The base profile and / or the polymer of the functionalization element is expediently fiber-reinforced. The fiber material of the base profile can be continuous and preferably aligned in the longitudinal direction of the profile. Alternatively or additionally, short fibers, in particular with a fiber length of less than 10 mm, can also be used to reinforce the base profile. Likewise, the aforementioned short fibers can also be used alternatively or additionally to reinforce the functionalization element. The fibers are expediently integrated into the polymer matrix of the base profile or the functionalization element. In principle, glass and / or carbon and / or metal fibers and / or natural fibers and / or plastic fibers, in particular made of aramid, can be used as fiber materials.It is also within the scope of the invention for the base profile to contain or consist of a fiber-matrix semi-finished product in the form of a thermoplastic semi-finished product, in particular in the form of an organic sheet. This semi-finished product can in turn have continuous fibers that are, for example, unidirectionally aligned or, for example, in the form of a woven fabric. As an alternative, the use of a thermosetting prepreg is also conceivable. In principle, the reinforcing fibers of the base profile can all be aligned in the longitudinal direction of the profile, i.e., the web direction. Alternatively, however, it is also possible for the reinforcing fibers to be arranged in a grid pattern. Preferably, the grid shape is designed such that the reinforcing fibers run at right angles to one another. The reinforcing fibers can, for example, be aligned parallel or perpendicular to the web direction of the base profile or, alternatively, at an angle of approximately 45° to the web direction.However, it is also within the scope of the invention for the base profile and / or the functionalization element to be provided with a metal reinforcement (e.g., in the form of at least one metal sheet and / or at least one metal wire, e.g., with a diameter of at least 0.5 mm), as well as the combination of fiber reinforcement with a metal reinforcement. Alternatively or additionally, glass spheres, e.g., hollow glass spheres, can also be integrated into the polymer of the base profile and / or the functionalization element.

[0011] The base profile can have at least one hollow chamber, in particular a closed one. A design as an open hollow profile is also within the scope of the invention. The base profile is expediently produced by extrusion, pultrusion, reactive pultrusion, pull extrusion, hot stamping, a calendering process or by injection molding, in particular CCM (Continuous Compression Molding) or RTM (Resin Transfer Molding). A pressing process is also within the scope of the invention. The base profile can also be designed as a sandwich panel. It is also within the scope of the invention for the base profile to be foamed, whereby the foaming can be produced physically or chemically.

[0012] Optionally, the functionalization element can additionally have an insert, in particular made of metal, which is expediently bonded to the base profile using the polymer of the functionalization element. The metal can be, for example, an elemental metal (e.g., aluminum, copper, etc.) or an alloy (e.g., steel). Preferably, the base profile and / or the functionalization element is manufactured using an acrylonitrile-styrene-acrylate copolymer (ASA), polyethylene (PE), in particular HDPE, polyvinyl chloride (PVC), polypropylene (PP), polycarbonate (PC), a thermoplastic elastomer (TPE), a thermoplastic polyurethane (TPU), polyamide (PA), or a polyetherimide (PEI) as the polymer material. Of course, recycled polymer materials are also within the scope of the invention. The polymer material can optionally contain chalk and / or talc.It is within the scope of the invention that the base profile is reworked in the area of ​​the functionalization element after it has been attached. This rework can, for example, involve creating an opening, in particular a bore, in the base profile that corresponds, for example, to an opening in the functionalization element, in particular, is aligned. The bore and opening can then, for example, serve together to attach a screw or the like to the combination profile.

[0013] The functionalization element is expediently designed as a connecting element and / or as a sealing element and / or as a fixing element and / or as a reinforcing element and / or as an “add-on” element, e.g. as a guide element and / or as a covering element.

[0014] The combination profile produced according to the invention can be used in a variety of ways. Preferred areas of application include automotive components (especially for battery boxes / as support components), aircraft components (especially as reinforcement components for thin-walled, large-area structures, e.g., as stringers = longitudinal stiffeners), furniture components (especially edge banding), or in the construction sector, for example, as a component of a window or door, or as a component of a pipeline. However, this does not preclude other applications.

[0015] The invention is explained in detail below with reference to a drawing that represents only one exemplary embodiment. The drawings schematically show:

[0016] Fig.1 shows an apparatus for carrying out a method according to the invention;

[0017] Fig. 2 the top view A in Fig. 1 (partial),

[0018] Fig. 3 is a diagram showing favorable ratios of cycle times of the plastic injection molding process according to the invention in relation to the longitudinal spacing of the functionalization elements produced thereby, Fig. 4a is a side view of a combination profile produced according to the invention

[0019] Fig. 4b the top view A in Fig. 4a

[0020] Fig. 4c the side view B in Fig. 4a

[0021] Fig. 5a shows a further combination profile produced according to the invention in side view

[0022] Fig. 5b the top view A in Fig. 5a

[0023] Fig. 5c the side view B in Fig. 5a

[0024] Fig. 6a shows a further combination profile produced according to the invention in side view

[0025] Fig. 6b the top view A in Fig. 6a

[0026] Fig. 6c the side view B in Fig. 6a

[0027] Fig. 6d the bottom view C in Fig. 6a

[0028] Fig. 7a shows a further combination profile produced according to the invention in side view

[0029] Fig. 7b the top view A in Fig. 7a

[0030] Fig. 7c the side view B in Fig. 7a

[0031] Fig. 8 several combination profiles according to Fig. 7a-c in the assembled state

[0032] Fig. 9a shows a further combination profile produced according to the invention in a side view. Fig. 9b shows the top view A in Fig. 9a.

[0033] Fig. 9c the side view B in Fig. 9a

[0034] Fig. 10a shows a further combination profile produced according to the invention in side view

[0035] Fig. 10b the top view A in Fig. 10a

[0036] Fig. 10c the side view B in Fig. 10a

[0037] Fig. 11a shows a further combination profile produced according to the invention in side view

[0038] Fig. 11b the top view A in Fig. Ha

[0039] Fig. 11c the side view B in Fig. 11a

[0040] Fig. 12a shows a further combination profile produced according to the invention in side view

[0041] Fig. 12b the bottom view A in Fig. 12a

[0042] Fig. 12c the side view B in Fig. 12a

[0043] Fig. 13a shows a further combination profile produced according to the invention in side view

[0044] Fig. 13b the top view A in Fig. 13a

[0045] Fig. 13c the side view B in Fig. 13a

[0046] Fig. 1 schematically shows a device 100 with which a method according to the invention can be carried out. The method according to the invention serves to produce a combination profile 1 with a polymer base profile 2 and at least one functionalization element 3 attached to the base profile 2 by means of a mobile plastic injection molding process. By means of the plastic injection molding process, the functionalization elements 3 shown in Fig. 1 can be connected to the base profile 2, for example, in a material-locking manner (but optionally also in a form-fitting or force-fitting manner). The endless base profile 1 is produced by feeding polymer granulate 4 into an extruder 5 by means of an extrusion process. The extrusion speed is designated by VP. To carry out the mobile plastic injection molding process, a movable injection molding unit 7 mounted on a robot 6 is used.The injection molding unit 7 comprises an injection mold (not shown in detail) and a device for injecting molten plastic into this injection mold. The injection molding unit 7 is mounted on a C-shaped bracket ("C-bracket") 8, which in turn is arranged on the robot 6 and moved by the latter. It can also be seen that, with the aid of the method according to the invention, a plurality of functionalization elements 3 are continuously attached to the base profile 2. For this purpose, the injection molding unit 7 is moved online during an injection molding process at the production speed VP (= extrusion speed) of the continuously produced base profile 2. This ensures that the injection molding unit 7 is constantly located at the same point on the base profile 2 during an injection molding process, thus enabling a clean injection molding process.The production speed VP of the base profile 1 is preferably 0.5 to 5 m / min, in particular 1 to 3 m / min. The cycle time of the plastic injection molding process z is preferably 5 to 50 seconds, in particular 15 to 30 seconds. The cycle time z here refers to the time required to produce a single functionalization element 3. During this cycle time z, the injection molding unit 7 is moved along with the passing base profile 1 in the extrusion direction x at a speed vs, which corresponds to the production speed VP of the base profile 1 in the extrusion direction x (vs = VP), so that there is no relative movement between the area of ​​the base profile 2 to which the functionalization element 3 is attached and the injection molding unit 7. This allows the flawless attachment of a functionalization element 3 to the base profile 2.After completion of an injection molding cycle, the injection molding unit 7 is then moved counter to the extrusion direction x, and a new injection molding cycle for attaching a further functionalization element 2 to the base profile 1 can begin. However, it is also fundamentally within the scope of the invention that, alternatively, the injection molding unit 7 is designed to be stationary (not shown in detail), and the base profile 1 is accordingly arranged below the injection molding unit 7 in order to carry out the plastic injection molding process according to the invention thereon and thereby attach the functionalization element 3 to the base profile 2. The injection volume in the plastic injection molding process is expediently 1 to 70 cm. 3 , especially 5 to 50 cm 3. However, this does not rule out any possibility of larger volumes. Comparatively large volumes are particularly possible when the production speed VP of the base profile 2 is low. In this case, a comparatively long cycle time z can be selected for the injection molding process without the corresponding injection molding unit 7 having to travel an excessively large distance during this time. As can be seen from a comparison of Fig. 1 and 2, a plurality of functionalization elements 3 are attached to the base profile 2 at a distance from one another in the longitudinal direction x of the base profile, and their distance L in the longitudinal direction x of the base profile 2 is, for example, 50 to 700 mm, in particular 100 to 500 mm. In particular, the distances L between the functionalization elements 3 in the longitudinal direction x of the profile can be constant, ie the functionalization elements 3 are attached equidistantly along the base profile 2.Depending on the application, the base profile 2 can then be cut to length so that one or more functionalization elements 3 are then attached to the correspondingly separated base profile 2.

[0047] The base profile 2 and / or the polymer of the functionalization element 3 can be fiber-reinforced. The fiber material of the base profile 2, not shown in detail in the figures, can be continuous and preferably formed in the profile's longitudinal direction x. Alternatively or additionally, short fibers, in particular with a fiber length of less than 10 mm, can also be used to reinforce the base profile 2. The aforementioned short fibers can also be used to reinforce a functionalization element 3. The fibers are expediently integrated into the polymer matrix of the base profile 2 or the functionalization element 3. In principle, glass and / or carbon and / or plastic fibers, in particular made of aramid, can be used as fiber materials. It is also within the scope of the invention for the base profile 2 to contain or comprise a fiber-matrix semi-finished product in the form of a thermoplastic semi-finished product, in particular in the form of an organic sheet.consists of such a material. This semi-finished product can in turn comprise continuous fibres which are, for example, unidirectionally aligned or, for example, formed as a fabric. As an alternative, the use of a thermosetting prepreg is also conceivable. In principle, the reinforcing fibres of the base profile 2 can all be aligned in the profile longitudinal direction x, i.e., the web direction. Alternatively, however, it is also possible for the reinforcing fibres to be arranged in a grid shape. Preferably, the grid shape is designed such that the reinforcing fibres run at right angles to one another. The reinforcing fibres can, for example, be aligned parallel or perpendicular to the web direction x of the base profile 2 or, alternatively, at an angle of approximately 45° to the web direction x. However, it is also within the scope of the invention for the base profile 2 to be provided with a metal reinforcement (e.g.in the form of at least one metal sheet and / or at least one metal wire), as well as the combination of a fiber reinforcement with a metal reinforcement. The base profile 2 and / or the functionalization element 3 in the exemplary embodiments is produced with an acrylonitrile-styrene-acrylate copolymer (ASA), polyethylene (PE), in particular HDPE, polyvinyl chloride (PVC), polypropylene (PP), polycarbonate (PC), a thermoplastic elastomer (TPE), a thermoplastic polyurethane (TPU), polyamide (PA) or a polyetherimide (PEI) as the polymer material. As an alternative to producing the base profile 2 by extrusion, it can also be produced by pultrusion, reactive pultrusion, pull extrusion, hot stamping, a calendering process or by injection molding, in particular CCM (Continuous Compression Molding) or RTM (Resin Transfer Molding). A pressing process is also within the scope of the invention.

[0048] Figure 3 shows a diagram showing particularly favorable ratios of cycle times z of the plastic injection molding process according to the invention in relation to the longitudinal spacing L of the functionalization elements produced thereby (= process window). As already mentioned, suitable cycle times z of the plastic injection molding process are in particular 15 to 30 seconds, e.g., approximately 16 to 28 seconds. The process window shown in the diagram is adjusted upwards or downwards by these cycle times z. m ax or z min and bounded to the left and right by a straight line passing through the diagram origin. The left straight line has a gradient of r = 0.12 sec 1 mm and the right straight line has a gradient of m2 = 0.04 see / mm. The left boundary line applies to a low process speed VP of the base profile of 1 m / min and the right boundary line applies to a high process speed VP of the base profile of 3 m / min. Within the process window, the method according to the invention can be carried out particularly economically and with suitable product quality.

[0049] In the following, various combination profiles which were produced using a method according to the invention are described.

[0050] Figs. 4a to 4c disclose a combination profile 1 with a cut-to-length base profile 2, in which the functionalization element 3 is designed as a connecting element. Specifically, this functionalization element 3 has an angular shape, with connecting openings 50 provided on the protruding leg of the angle.

[0051] Figs. 5a to 5c show a combination profile 1 with a cut-to-length base profile 2, in which the functionalization element 3 has an anti-twist feature. For this purpose, several upwardly projecting webs 52 are provided on the functionalization element 3. In this exemplary embodiment, the functionalization element 3 has an annular shape with a corresponding internal opening 54. The base profile 2 was reworked in the area of ​​the opening 54 after the attachment of the functionalization element 3. The rework was carried out by creating a bore 56 on the base profile 2, which is aligned with the opening 54 of the functionalization element. It can also be seen that the base profile 2 has a U-shaped cross-section.

[0052] Figs. 6a to 6d disclose a combination profile 1 with a cut-to-length base profile 2, in which the functionalization element 3 is again designed as a connecting element. The functionalization element 3 is cylindrical in shape here, with the length of the cylinder being greater than its diameter. For reinforcement, the connecting element 3 has reinforcing ribs 58 aligned perpendicular to the base profile 2. Furthermore, the functionalization element has a metal insert 60 with an internal thread. This insert 60 was bonded to the polymer of the functionalization element 3 during the plastic injection molding process during the production of the functionalization element 3. Accordingly, the functionalization element 3 is designed here as a hybrid element with a metal component 60 and a polymer component 62.The polymer component 62 accordingly also comprises the reinforcing ribs 58 integrally formed on the polymer component 62. After attachment of the functionalization element 3, the base profile 2 was reworked with an opening 56' through which a screw or the like (not shown) can be passed in order to screw it into the insert 60. As can be seen from Fig. 6d, the insert 60 has a toothing 64 on its outer side in order to intensify the material bond between the insert 60 and the polymer of the functionalization element 3.

[0053] In the embodiment according to Fig. 7a to 7c, in comparison to the previous example, several functionalization elements 3 are attached to a cut-to-length base profile 2 on the combination profile 1. The base profile 2 is trough-shaped in cross-section and thus has, on the one hand, very good mechanically stiffening properties and, on the other hand, can be easily connected to other components via the functionalization elements 3 arranged at the ends of the base profile 2 in cross-section. A comparison with Figure 8 shows that the combination profile 1 can be used as a stringer profile for the mechanical stiffening of a component 70, e.g. a thin-walled (e.g. wall thickness < 1 cm, in particular < 5 mm), large-area (e.g. surface > 1 m 2) component 70, for example, in aircraft construction. For the corresponding stiffening of component 70, which may be curved, several combination profiles 1 are attached to component 70 via their functionalization elements 3 in Fig. 8, wherein the combination profiles 1 may be aligned parallel to one another.

[0054] Figs. 9a to 9c show a combination profile 1 with a cut-to-length base profile 2, in which the functionalization element 3 is designed as a sealing element. Accordingly, the functionalization element 3 in this exemplary embodiment consists of an elastic polymeric material. The functionalization element 3 is annular with an inner opening 54" and has an upwardly projecting annular web 72 on its outer edge. The base profile 2 was reworked in the area of ​​the opening 54" after the attachment of the functionalization element 3. The rework was carried out by creating a bore 56" on the base profile 1, which is aligned with the opening 54" of the functionalization element 3. It can also be seen that the base profile 2 has a U-shaped cross-section.

[0055] Figs. 10a to 10c show a combination profile 1 with a cut-to-length base profile 2, in which the functionalizing element 3 is designed as a fixing element. In the exemplary embodiment, this fixing element is designed as a clip. To attach the clip 3 to the base profile 2, a rail 74, which is T-shaped in cross-section, is integrally formed on the base profile 2, and the attached clip 3 engages behind it (see in particular Fig. 10c). It can also be seen that the base profile 2 has a U-shaped base cross-section.

[0056] Figs. 11a to 11c show a combination profile 1 with a cut-to-length base profile 2, in which the functionalization element 3 is designed as an add-on. In the exemplary embodiment, the functionalization element 3 is designed as a guide rail with a T-shaped cross-section. Alternatively, the add-on can also be designed, for example, as a flow flap, damper, etc. It can also be seen that the base profile 2 has a U-shaped cross-section.

[0057] Figs. 12a to 12c show a combination profile 1 with a cut-to-length base profile 2, in which the functionalizing element 3 is designed as a reinforcing element. In the exemplary embodiment, the reinforcing element 3 is designed as a cross-shaped rib element. It can also be seen that, viewed in the base profile longitudinal direction x, several spaced-apart cross-shaped rib elements 3 are attached to the base profile 2. Of course, other designs of a reinforcing element 3 are also within the scope of the invention.

[0058] 13a to 13c show a combination profile 1 with a cut-to-length base profile 2, in which the functionalization element 3 is designed as a covering element. In the exemplary embodiment, the covering element 3 is designed as an end cap, which closes the end of the base profile 2 designed as a closed hollow profile. As can be seen from Figs. 13a and 13b, the end cap 3 has a projection 76 which engages in the hollow chamber 78 of the base profile 2 and bears against the inner wall of the base profile 2. An opening 80 is provided in the end cap 3, which can serve, for example, to ventilate the inner hollow chamber 78 of the base profile 2. Alternatively, the covering element 3 can also be designed as a hole cover, lid, ventilation lid or the like.

[0059] A combination profile manufactured according to the invention can, in principle, be used in a variety of ways. Preferred areas of application include automotive components (especially for battery boxes / support components), aircraft components (especially reinforcement components for thin-walled, large-area structures, e.g., stringers = longitudinal stiffeners), or furniture components (especially edge banding). However, this does not preclude other applications.

[0060] Patent claims

Claims

Patent claims 1. Method for producing a combination profile (1) with a polymeric base profile (2) and at least one functionalization element (3) attached to the base profile (2) by means of a preferably mobile plastic injection molding process.

2. Method according to claim 1, characterized in that a movable injection molding unit (7), preferably mounted on a robot (6), is used to carry out the mobile plastic injection molding process.

3. Method according to claim 2, characterized in that the injection molding unit (7) is moved online during an injection molding process at the production speed (VP) of the continuously produced base profile (2), wherein the production speed (VP) of the base profile (2) is preferably 0.5 to 5 m / min, in particular 1 to 3 m / min.

4. Method according to one of claims 1 to 3, characterized in that the injection volume in the plastic injection molding process is 1 to 70 cm 3 amounts.

5. The method according to any one of claims 1 to 4, characterized in that the cycle time (z) of the plastic injection molding process is 5 to 50 seconds, in particular 15 to 30 seconds.

6. Method according to one of claims 1 to 5, characterized in that a plurality of functionalization elements (3) are attached to the base profile (2) at a distance from one another in the base profile longitudinal direction (x), and their distance (L) in the longitudinal direction (x) of the base profile (2) is 50 to 700 mm, in particular 100 to 500 mm.

7. Method according to one of claims 1 to 6, characterized in that the base profile (2) and / or the polymer of the functionalization element (3) is fiber-reinforced.

8. Method according to one of claims 1 to 7, characterized in that the base profile (2) has at least one hollow chamber (78), in particular a closed one.

9. Method according to one of claims 1 to 8, characterized in that the base profile (2) is produced by means of extrusion, pultrusion, reactive pultrusion, hot stamping, a calendering process or by means of injection molding, in particular CCM or RTM.

10. Method according to one of claims 1 to 9, characterized in that the functionalization element (3) has an insert (60), in particular made of metal, which is bonded to the base profile (2) with the polymer of the functionalization element (3).

11. Method according to one of claims 1 to 10, characterized in that the base profile (2) is reworked in the region of the functionalizing element (3) after the attachment of the functionalizing element (3).

12. Method according to one of claims 1 to 11, characterized in that the base profile (2) and / or the functionalization element (3) is produced with ASA, PE, in particular HDPE, PVC, PP, PC, TPE, TPU, PA or PEI as polymer material.

13. Method according to one of claims 1 to 12, characterized in that the functionalization element (3) is designed as a connecting element and / or as a sealing element and / or as a fixing element and / or as a reinforcing element and / or as an “add-on” element, e.g. as a guide element and / or as a covering element.

14. Method according to one of claims 1 to 13, characterized in that the combination profile (1) is used as an automotive component, in particular for battery boxes or as a support component, as an aircraft component, in particular as a reinforcing component for thin-walled, large-area structures, e.g. stringers, as furniture components, in particular as edge bands, as components of a window or door or as part of a pipeline.

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