COMPOSITE PROFILE, FRAME AND METHOD FOR MANUFACTURING THE COMPOSITE PROFILE

Description

[0001] The present invention relates to a composite profile for a window or a door or a facade element, a frame and a method for manufacturing a composite profile for a door or a window or a facade element, in particular with fire protection properties.

[0002] Such methods and composite profiles are known from the prior art, for example from EP 2 990 581 A1 and from DE 10 2017 103897 A1.

[0003] There are basically two types of aluminum profile systems: One-piece, thermally non-insulated aluminium profiles and the so-called composite profiles with at least one thermal insulation zone made of at least one plastic profile; the insulating profile.

[0004] State-of-the-art composite profiles typically consist of a first profile – usually an outer profile – and a second aluminum profile – usually an inner profile – which are connected by at least one heat-transfer-reducing element, such as an insulating profile, which may be made of a less conductive material like plastic. However, it is also conceivable that the composite profiles, from the outside in – referring to a typical installation situation in an exterior wall – have three or more aluminum profiles and two or more insulating profile zones. In the case of interior use – which is also conceivable – one space can be considered the exterior and the other the interior.

[0005] For the purposes of this document, an aluminium profile is a profile that has been manufactured from aluminium or an aluminium alloy.

[0006] The composite profiles are particularly suitable – but not exclusively – for the manufacture of fire-resistant doors or windows, which are then preferably suitable for at least fire resistance class T30 or F30 according to DIN 4102-13 and DIN EN 16034 for exterior applications, i.e., for installation in external firewalls of fire resistance class EI 2 30-S a C2. However, they can also be used in doors, windows, or facade elements that are not designed as firewalls and / or are used in the interior of buildings.

[0007] Fire-resistant constructions made of thermally broken profiles have also been known for a long time. For example, EP 0 717 165 B1 describes a fire-resistant profile system consisting of an aluminum profile with a central section where heat flow to the outer areas is reduced by cutouts, such as punched holes. A disadvantage of such fire-resistant constructions is that they can warp in the event of a fire (i.e., due to temperature differences between the inside and outside) (bimetallic effect).

[0008] Regarding the technological background, DE 31 09 103 A1 should also be mentioned in this context. This document discloses the method of inserting fire-resistant strips into two hollow chambers of metal profiles. The hollow chambers can be connected by bridge webs, which may have openings such as elongated holes. Furthermore, intumescent fire-resistant strips can be arranged on the bridge webs.

[0009] For the production of composite profiles according to the state of the art, two aluminum profiles are generally provided, each having at least one (or more) undercut groove(s) in its main extension direction, into which corresponding foot sections of an insulating profile made of plastic can be inserted. After this insertion, an edge rib of the grooves of the aluminum profiles, usually called an anvil, is rolled onto the insulating profile.

[0010] To give composite profiles the necessary temperature resistance in case of fire, in accordance with the various standardized fire protection classes, temperature-resistant bridge elements, preferably made of steel, are used according to EP 1 138 864 A1. The insulating profiles and the profiles themselves are attached to the insulating profiles and then joined (rolled together). For this purpose, the insulating profiles must be partially milled out, the bridge elements must be manufactured as stamped and bent steel parts, an adhesive bond must be provided for mounting the bridge elements to the insulating profiles, and the bridge elements must be inserted precisely into the milled recesses. The components and these work steps are complex and expensive.

[0011] Therefore, a composite profile is to be created that exhibits very good structural properties, preferably enabling its use in fire protection applications. Furthermore, the invention aims to simplify the corresponding manufacturing process as much as possible.

[0012] The present invention solves this problem by means of the composite profile of claim 1. It also provides the frame of claim 14, the window or door according to claim 15 and the method of claim 16. Advantageous embodiments of the invention are specified in the dependent claims.

[0013] According to claim 1, a composite profile for a window or door frame is created, comprising the following: a one-piece aluminum profile extending in a main direction of extension, to which an insulating profile running parallel to the aluminum profile is fixed in two different fastening areas, wherein the one-piece aluminum profile has one or more recesses where it runs alongside the insulating profile, between which aluminum webs are formed, which preferably remain there after cutting or punching.

[0014] According to claim 1, it is further advantageously provided that the fastening areas are rolling areas. It is particularly advantageous, simple, and improves the statics that the rolling areas on the aluminum profile comprise grooves, into which corresponding foot sections of the insulating profile engage.

[0015] The statics are further positively influenced by the fact that the foot sections are fixed in the grooves perpendicular to the main direction of extension in a tensile-resistant manner. It can be advantageously provided that the grooves are fixed in the grooves perpendicular to the main direction of extension by at least one means that increases the tensile strength. According to claim 1, it is particularly advantageous that the respective grooves, with respect to the section perpendicular to the main direction of extension, are designed as undercut grooves into which the corresponding foot sections engage in a tongue-and-groove joint, wherein the grooves widen continuously or section by section from an opening area towards their base, and wherein the foot sections widen correspondingly towards their ends, so that the foot sections are fixed in the grooves perpendicular to the main direction of extension in a tensile-resistant manner by these means.These measures are also not known from WO 2005 / 028797 A1.

[0016] Although WO 2005 / 028797 A1 discloses that a web made of a different material can be attached to a multi-section, welded steel profile via recesses in the steel profile designed to reduce heat conduction, the multi-section welded steel profile has a disadvantage in that this manufacturing process necessitates larger tolerances. According to the invention, these tolerances can be easily avoided by designing the metal profile as a single-piece aluminum profile. On the other hand, the steel profile is quite stable and heat-resistant, so the web attached to it does not provide any significant improvement in its static properties. Probably for this reason, the transfer of this solution to aluminum composite profiles has not yet been considered.

[0017] In an advantageous embodiment, it contributes to very good statics that the grooves in a section perpendicular to the main extension direction are open exactly or substantially in the opposite direction, and that the corresponding foot sections of the insulating profile, pointing exactly or substantially in opposite directions, engage in these grooves, wherein the foot sections are fixed in the grooves parallel to the main extension direction or in this main extension direction and against this direction in a shear-resistant manner.

[0018] In an advantageous embodiment, it is expediently provided that the foot sections are fixed in the grooves parallel to the main direction of extension by means of a means that increases shear strength. This means can, for example, be formed by a knurled wire or the like running parallel to the feet in the grooves, or by another means such as a projection on one of the groove webs (e.g., on the groove web called the anvil), which is pressed into the insulating profile when rolled against it.

[0019] It is preferred that the aluminum webs run at least partially alongside the insulating profile, in particular parallel and transverse or oblique to the insulating profile. In this way, the static properties of the composite profile are particularly good. It can even be provided that the webs run at least partially parallel to the insulating profile and support it.

[0020] Visually, it is also advantageous if, in a favorable design, the recesses are covered on one side by the insulating profile.

[0021] Finally, good statics are further enhanced if, according to an advantageous design, the insulating profiles and the aluminum webs are at least partially corresponding in a c-shape and preferably lie adjacent to each other in sections.

[0022] The preferred material is a prefabricated aluminum profile, simply designed as a one-piece extruded profile made of aluminum or an aluminum alloy, to which the single insulating profile is attached.

[0023] The cutouts can be rectangular or trapezoidal, for example.

[0024] In terms of good thermal insulation and good statics, it is further advantageous, after a further optional design, if one or more hollow chambers are formed in the aluminium profile.

[0025] Furthermore, according to another optional embodiment, good thermal insulation and good statics are further advantageous if the grooves are each supported by one or more wall sections of the aluminium profile, wherein one of these wall sections runs approximately perpendicular to the respective base wall of the respective groove and wherein the other of these wall sections runs approximately in extension of one side wall of the respective groove at an angle - preferably at an angle between 20° and 70°.

[0026] The invention also provides a frame composed of several composite profiles according to one or more of the related claims, wherein one or more of the composite profiles of the frame have a first aluminium zone I, then an insulating zone II made of the aluminium webs and the insulating profile, and then another aluminium zone (III) perpendicular to the main plane of the frame towards a first side of the frame.

[0027] In terms of good thermal insulation and good statics, it is further advantageous if one or more of the respective hollow chambers are provided in the aluminium zones I and III according to an exemplary embodiment.

[0028] Furthermore, a window or door will be created that has at least such a frame.

[0029] The invention also provides an advantageous and simple method for manufacturing a composite profile for a window or door frame according to one of the related claims, comprising the following steps: 100: Providing a prefabricated one-piece aluminum profile and providing at least one prefabricated insulating profile; 200: Inserting the base areas of the insulating profile, widening perpendicular to the main extension direction of the insulating profile towards their free ends, into at least two undercut grooves (105, 106) of the aluminum profile; into at least two grooves of the aluminum profile; 300: Rolling the insulating profile into at least two rolling areas against the one aluminum profile; 400: wherein the prefabricated aluminum profile is an extruded profile into which, before or after the insulating profile is rolled against the aluminum profile, one or more recesses are made in the wall section between the two grooves, so that a web remains between the recesses.

[0030] Exemplary embodiments of the invention are shown in the drawings and are described in more detail below. The invention is not limited to the features shown in the figures. Furthermore, it is not necessary to apply all features of the figures in the combination shown. While this is advantageous, it is not mandatory. The individual features can be used within the scope of the appended claims, and indeed also in embodiments other than those shown, or combined differently. The figures show: Figure 1: A sectional view of an aluminum profile and a sectional view of an insulating profile. Figure 2: Another sectional view of a different aluminum profile, similar to... Fig. 1, into which recesses have been made; Figure 3 a schematic view of a frame made of composite profiles; Figure 4: a) to d) four sectional views which are intended to illustrate four steps of an exemplary manufacturing process according to the invention for the production of a composite profile, wherein the aluminium profile is only shown section by section.

[0031] Fig. 1 shows a view of an exemplary aluminum profile 1 and an exemplary insulating profile 2, from which a composite profile 3 ( Fig. 4c, 4d ) is to be manufactured for a window or a door.

[0032] The composite profile 3 is particularly suitable for the production of a circumferentially closed or non-circumferentially closed frame 4 (see Fig. 3) suitable for a window or door, which is composed of three, four, or more cut composite profiles 3a, 3b, 3c, 3d. The frame 4 can be a sash frame. The frame 4 can also be designed as a fixed frame. In a Cartesian coordinate system, the frame 4 extends mainly in an X / Y plane and also has a certain extension in the Z direction perpendicular to its main plane.

[0033] The aluminium profiles 1 then preferably extend vertically perpendicular to the X / Y plane of the frame 4, continuously in a metallic manner, at least in the area of ​​webs to be described, vertically over the entire construction depth Z of the frame 4, i.e. preferably from "outside to inside".

[0034] The aluminium profile 1 can particularly preferably be designed as a one-piece extruded profile made of aluminium or an aluminium alloy.

[0035] The aluminium profile 1 can have one or more hollow chambers 101, 102 which are advantageous for the statics and the thermal insulation, in particular in sections which, after the manufacture of the composite profile to be produced, lie outside a section in which the insulating profile 2 of the composite profile runs substantially or exactly parallel to the aluminium profile 1.

[0036] These hollow chambers 101, 102 can be connected to each other via one or more – here two – wall sections 103, 104 extending in the Z-direction. These wall sections 103, 104 can run exactly or substantially parallel to each other.

[0037] The width of the aluminium profile 1 and the composite profile 3 in the Z direction can be changed by widening the hollow chamber 101, 102 and changing the distance between the wall sections 103, 104.

[0038] In the area of ​​one wall section 104, grooves 114, 115 may be provided, in particular for fixing fittings for locks or the like.

[0039] The aluminum profile 1 also has at least two spaced-apart, in particular undercut, grooves 105, 106 for inserting two corresponding foot sections 201, 202 of a single insulating profile 2, preferably extending at least partially towards their free ends. This creates the basis for a very tensile-strength connection between the insulating profile 2 and the aluminum profile 1 in the + and - "Z-direction".

[0040] The insulating profile 2 preferably extends in one main direction of extension (perpendicular to the view of the Fig. 1 ) continuously over the entire length of the aluminum profile 1. And the grooves 105, 106 and the foot sections 201, 202 also extend preferably in the main direction X perpendicular to the view of the Fig. 1continuously over the entire length of the aluminium profile 1. Between the grooves 105, 106 runs one wall section 103 of the aluminium profile 1.

[0041] The grooves 105 and 106 are open on one side. They are designed on the aluminum profile 1 such that they face in opposite directions. They lie directly opposite each other in a straight line. They are approximately U-shaped, but are undercut to such an extent that the corresponding foot sections 201 and 202 of the insulating profile 2, which widen towards their free ends, can be inserted into them in a tongue-and-groove manner.

[0042] The grooves 105, 106 can each be supported on their opposite sides by one or more – advantageously two – wall sections 107, 108; 109, 110. These extend towards the respective hollow chamber 101, 102. One of these wall sections 107, 109 can run approximately centrally and perpendicularly to the respective base wall of the respective groove 105, 106. The other of these wall sections 108 or 110 can run obliquely at an angle α between, in particular, 20° and 70° to the Z-direction, approximately extending from one side wall of the respective groove 105, 106, so that the grooves 105, 106 are each very well stabilized by two wall sections.

[0043] The wall sections 107 and 108 on the one hand and 109, 110 on the other hand extend to a respective inner wall 1011 1021 of the two hollow chambers 101 and 102 in zones I and III and serve as a firm support for the "thermal insulation" zone II made of the insulating profile 2 and the adjacent webs 113.

[0044] The foot sections 201, 202 of the insulating profile 2 preferably also extend in opposite directions. Between the foot sections 201, 202 of the insulating profile 2, a wall-like web section 203 of the insulating profile 2 extends, initially continuing in the main direction of extension. This web section 203 can be – but does not necessarily have to be – C-shaped.

[0045] A preferred embodiment of the manufacturing process according to the invention is described using the Figures 4a to 4d illustrated. The sections of the Fig. 4a and bare located at different points along the main extension direction of profiles 1 and 2. The sections of the Fig. 4c and f are located at the positions of Fig. 4a or 4b, but represent a later stage of the manufacturing process.

[0046] The aluminum profile 1 is in Fig. 4a - d Essentially, only one section is shown in each case, in which the insulating profile 2 is to be defined. This section extends – with respect to a frame – in the direction of the construction depth Z, preferably over the depth of an insulating zone II.

[0047] To produce the composite profile 3, the prefabricated, in particular extruded, aluminum profile 1 is first ( ) in a step 100 ( Fig. 1 , Fig. 4a ) and the insulating profile 2 made of plastic, which is manufactured in particular in an extrusion process.

[0048] Recesses 111, 112 are now being, or were previously, made into the provided aluminium profile 1, specifically at least recesses 111 are being made in the wall section 103 next to and between the grooves 105, 106 ( Fig. 2 , 4b ) introduced.

[0049] These recesses 111 are designed such that (perpendicular) Fig. 4c, 4d ) each aluminum webs 113 remain ( Fig. 2 , Fig. 4c Now, the insulating profile 2 is positioned with its two feet perpendicular to the plane of the Fig. 2 or Fig. 4a, 4b ) is inserted into the aluminum profile 1. Then, at least one groove wall 1051, 1061 – called an anvil – of the grooves 105, 106 is rolled against the base areas 201, 202 of the insulating profile 2. This is done with high pressure, so that a shear-resistant connection is created between the profiles 1 and 2. In this way, the insulating profile 2 runs parallel to the aluminum webs 113, ( Fig. 4a, 4d). It may even be due to these, especially if the aluminium webs 113 have a projection 116 extending towards the insulating profile 2.

[0050] Since the grooves 105, 106 are undercut and the foot areas 201, 202 of the insulating profile 2 are designed accordingly, a very good tensile-resistant connection is achieved in the Z-direction between the aluminum profile 1 and the insulating profile 2, which contributes significantly to optimized static properties of the composite profile 4. These properties can be further optimized by ensuring that this connection between the aluminum profile 1 and the insulating profile 2 is also shear-resistant, and therefore very stable, in the main extension direction of the profiles 1, 2.

[0051] This shear strength can be optimized by suitable means that increase shear strength, for example by a knurled wire.

[0052] According to the illustrated embodiments, it is also provided that the foot sections 201, 202 of the insulating profile 2 are fixed in the grooves 201, 202 perpendicular to the main extension direction by at least one means which increases the tensile strength.For this purpose, it is initially provided that the respective grooves 105, 106 are designed as undercut grooves with respect to the section perpendicular to the main direction of extension, into which the corresponding foot sections 201, 202 of the insulating profile 2 engage in the manner of a tongue and groove connection, wherein the grooves widen continuously or section by section from an opening area in the direction of their groove base and wherein the foot sections 201, 202 of the insulating profile 2 widen correspondingly towards their respective free ends, so that the foot sections 201, 202 of the insulating profile 2 are fixed in the grooves 201, 202 by these means perpendicular to the main direction of extension (here i.e. in the Z direction) with particular tensile strength.

[0053] It may also be further provided, for example, that at least one projection 10511, 1061 projecting in the direction of the insulating profile 2 is provided on the respective anvil 1051, 1061, which is impressed into the insulating profile 2 when the anvil 1051 rolls against it, which increases the tensile strength in the Z-direction and against this direction in the area of ​​the fastening areas between the profiles 1 and 2.

[0054] Unlike conventional composite profiles 3, here the aluminum profile 1 runs parallel and transversely or obliquely to the insulating profile 2 in the insulating profile zone, with spaced-apart aluminum webs 113. The composite profile 3 thus has a frame 4 in the manner of Fig. 4 first an aluminum zone I, then an insulating zone II, in which the insulating profile 2 and aluminum webs 113 of the aluminum profile 1 run next to each other, in particular parallel to each other, and then a second aluminum zone III.

[0055] The composite profile 3 produced in this way is very stable. It is also easy to manufacture with great precision, since the depth of the composite profile 3 perpendicular to the frame 4 is not the sum of the individual widths of several aluminum profiles and an insulating profile 2, but is determined solely by the width of the provided aluminum profile 1.

[0056] The recesses 111 can, for example, have a rectangular shape or a trapezoidal shape.

[0057] The recesses 111 can, for example, have an area of ​​more than 30 mm by 50 mm. The aluminum webs 113 can, for example, be perpendicular to the plane of the Fig. 2 each have an extension of 4 to 14 mm.

[0058] The spacing of the aluminium webs 113 in the longitudinal direction of the profiles is preferably more than 100mm.

[0059] The structural integrity of the aluminum profiles 1 based solely on these aluminum webs 113, without the insulating profile 2, would be insufficient, especially for large frames. However, the heat transfer would already be advantageously very low. The aluminum webs 113, for example, hold the profile 4 in place in the event of a fire, as they do not melt as quickly as the insulating profiles 2. The still very high structural values ​​result from the combination of the aluminum webs 113 and the insulating webs 2, which are firmly connected to the aluminum profile 1 (preferably with a positive locking mechanism in multiple directions). This achieves very high structural values ​​in these multiple, or even all, possible directions, while maintaining very good thermal transmittance values ​​for normal use and in the event of a fire.

[0060] This composite profile 3 can be used in all frame constructions where very good statics are desired, whether because the frame 4 is very large and / or heavy, or because the window or door to be manufactured with it must comply with a fire protection standard.

[0061] Surprisingly, it has been shown that the combination of a one-piece, uninsulated aluminum profile 1 with an insulating profile 2 in a composite profile, with both running side by side in sections, not only has very good fire protection properties (resistance times), but also very good statics.

[0062] To improve thermal insulation (normal temperatures -20 to +70 degrees C) and to make it easy to mount fittings such as locks and closers, the one-piece, uninsulated profiles are provided with recesses 111, 112 on at least one, preferably two sides.

[0063] The additional insulating profiles 2, which improve the structural integrity, also have the advantage of covering the recesses 111 in areas where, for example, no fittings are used or mounted. Therefore, additional cover profiles are not required.

[0064] To optimize thermal insulation, structural integrity, and heat resistance, multiple and / or differently shaped recesses 111, 112 can be provided. The one-piece, uninsulated aluminum profile 1 is preferably first milled and then fitted with the insulating profile 2, in particular by rolling it in a shear-resistant manner. Reference sign

[0065] Aluminum profile 1 Hollow chambers 101, 102 Wall 1011 1021 Wall sections 103, 104 grooves 105, 106 tongue and groove walls 1051, 1061 projection 10511, 10611 Wall sections 107, 108; 109, 110 cutouts 111, 112 footbridges 113 grooves 114, 115 projection 116 Insulation profile 2 Foot sections 201, 202 Section 203 Zones I, II, III angle α

Claims

1. Composite profile (2) for a window or door or façade element, comprising: a. a one-piece aluminum profile (1) extending in a main direction, to which an insulating profile (2) running adjacent and parallel to the aluminum profile (1) is fixed in two fastening areas, b. wherein the one-piece aluminum profile has one or more recesses (111) where it runs adjacent to the insulating profile (2), between which aluminum webs (113) are formed in each case, c. characterized in that the fastening areas are rolled-in areas, wherein the rolled-in areas of the aluminum profile (1) each comprise a groove (105, 106), wherein foot sections (201, 202) of the insulating profile (2) respectively corresponding to these grooves (105, 106) engage therein, and d. wherein the respective grooves (105, 106) are designed as undercut grooves (105, 106) with respect to a section perpendicular to the main direction of extension, into which the corresponding foot sections (201, 202) of the insulating profile (2) engage in a tongue-and-groove manner, wherein the grooves (105, 106) widen continuously or in sections from a respective opening area towards their groove base, and wherein the foot sections (201, 202) of the insulating profile (2) widen correspondingly towards their ends, so that the foot sections (201, 202) of the insulating profile (2) are fixed in the grooves (105, 106) by these means in a tensile-resistant manner perpendicular to the main direction of extension.

2. Composite profile according to claim 1, characterized in that the grooves (105, 106) are open in a section perpendicular to the main direction of extension exactly or substantially in the opposite direction, and in that the foot sections (201, 202) of the insulating profile (2) respectively corresponding to the grooves (105, 106) and pointing exactly or essentially in opposite directions engage therein.

3. Composite profile according to claim 1 or 2, characterized in that the foot sections are fixed in the grooves (105, 106) parallel to the main direction of extension in a shear-resistant manner.

4. Composite profile according to claim 3, characterized in that the foot sections (201, 202) of the insulating profile (2) are fixed in the grooves (105, 106) in a shear-resistant manner using a means of increasing shear resistance.

5. Composite profile according to one of the preceding claims, characterized in that the foot sections (201, 202) of the insulating profile (2) are fixed in the grooves (105, 106) in a tensile-resistant manner perpendicular to the main direction of extension.

6. Composite profile according to one of the preceding claims, characterized in that the foot sections (201, 202) of the insulating profile (2) are fixed in the grooves (105, 106) in a tensile-resistant manner perpendicular to the main direction of extension by at least one means of increasing tensile strength.

7. Composite profile according to one of the preceding claims, characterized in that the aluminum webs (113) run at least in sections next to the insulating profile (2).

8. Composite profile according to one of the preceding claims, characterized in that the recesses (111) are covered on one side by the insulating profile (2).

9. Composite profile according to one of the preceding claims, characterized in that the insulating profiles (2) and the aluminum webs (113) are designed to be C-shaped at least in sections and preferably lie against each other in these areas.

10. Composite profile according to one of the preceding claims, characterized in that the prefabricated aluminum profile (1) is an extruded profile made of an aluminum alloy.

11. Composite profile according to one of the preceding claims, characterized in that one or more hollow chambers (101, 102) are formed in the aluminum profile (1).

12. Composite profile according to one of the preceding claims, characterized in that the recesses (111) are rectangular or trapezoidal.

13. Composite profile according to one of the preceding claims, characterized in that the grooves (105, 106) are each supported by one or more wall sections (107, 108) of the aluminum profile (1), wherein one of these wall sections (107, 109) extends approximately perpendicular to the respective base wall of the respective groove (105, 106) and wherein the other of these wall sections runs obliquely at an angle of between 20° and 70° approximately in extension of the one side wall of the respective groove (105, 106).

14. Frame, composed of a plurality of composite profiles according to one or more of claims 1 to 13, wherein one or more of the composite profiles (4) of the frame (4) perpendicular to the main plane of the frame (4) toward a first side of the frame (4) has / have a first aluminum zone (I), then an insulating zone (II) consisting of the aluminum webs (113) and the insulating profile (2), and then again an aluminum zone (III).

15. Window, door, or façade comprising at least one frame according to claim 14.

16. Method for manufacturing a composite profile (2), in particular according to one of claims 1 to 13, further in particular provided for a frame according to claim 14, comprising the following steps: 100: providing a prefabricated one-piece aluminum profile (1) and providing at least one prefabricated insulating profile (2); 200: inserting foot regions of the insulating profile, which widen towards their free ends perpendicular to the main direction of extension of the insulating profile, into at least two undercut grooves (105, 106) of the aluminum profile; 300: rolling the insulating profile (2) onto the one aluminum profile (1) in at least two rolling regions; 400: wherein the prefabricated aluminum profile is an extruded profile in which, before or after rolling the insulating profile (2) onto the aluminum profile (2), one or more recesses (111) are introduced into the wall section (103) between the two grooves (105, 106), so that a web (113) remains in each case between each of the recesses (111).