DE102019201925A1 - Hybrid component and use and method for producing the same - Google Patents

Abstract

Among other things, it is proposed a hybrid component (1), with at least one first and at least one second endless profile (2, 3), which consist of a different material and are joined to one another. It is advantageously provided that the first endless profile (2) is an open profile into which the second endless profile (3) is at least partially inserted, and that the endless profiles (2, 3) are permanently joined to one another, at least by a form fit.

Description

The invention relates to a hybrid component according to the preamble of claim 1 of the invention. According to claim 9 of the invention, the same also relates to a preferred use of such a hybrid component and according to 10 an advantageous method for producing such a hybrid component.

In practice, especially in vehicle construction, there is a requirement to design components with a view to specific load cases, e.g. Reinforcing structures are provided which protect said components, for example body parts of vehicles, from impacts, penetrations and / or deformations. There is a need to provide reinforcement structures that achieve a certain force / energy level with a minimized installation space in order to meet said requirements. With regard to this, it is already known that the use of hybrid components which combine different materials with one another enables the best possible use of the installation space while ensuring the required mechanical requirements and load paths.

So is from the DE 10 2004 049 397 A1 a hybrid component for, for example, a cross member of a vehicle is known which comprises a prefabricated metallic base body which is at least partially provided with a plastic structure. The metallic base body has an edge region which can be at least mechanically joined to the plastic structure. Form-fitting, force-fitting and material-locking joining measures are proposed here as joining measures. The base body is a hollow profile, in particular an open hollow profile, such as a U-profile. The plastic structure has a stiffening structure and / or guide structure and is formed in its edge areas by injection pressure.

From the DE 10 2004 038 138 A1 Furthermore, a hybrid component, in the present case a hybrid tube, is known which consists of at least one inner tube made of a first material and at least one outer tube made of a second material. With regard to the production of such a hybrid pipe, it is provided that first an inner pipe of high rigidity, for example made of steel, is made or provided and this inner pipe is inserted into an outer pipe made by an extrusion process and not yet hardened made of, for example, aluminum or an aluminum alloy by the outer tube is extruded as a so-called endless profile, for example directly over the inner tube. After the outer tube has cooled down, a force-fit press connection can be seen between the tubes. This document is silent with regard to the manufacture of the inner tube, but it is known per se to manufacture such pipes from steel, likewise as so-called endless profiles, by an extrusion process known per se.

The object of the invention is to provide a with regard to the prior art ( DE 10 2004 038 138 A1 ) to provide alternative hybrid component with at least a first and a second endless profile made of different materials, which can be produced with minimal effort. In addition, it is an object of the invention to specify a preferred use of such a hybrid component and an advantageous method for producing such a hybrid component.

Starting from a hybrid component with at least one first and at least one second endless profile, which are made of a different material and are joined to one another, the object is achieved in that the first endless profile is an open profile into which the second endless profile is at least partially inserted is, and that the endless profiles are non-detachably joined to one another at least by a form fit.

Endless profiles are generally understood to mean elongated open profiles (e.g. U-profiles, angle profiles, etc.) and closed profiles (e.g. pipes), which, depending on the material selected, are produced easily and inexpensively by extrusion, pultrusion or extrusion. According to the current area of application to be recorded and the currently recorded length of the hybrid component to be produced, the endless profiles to be combined and made of different materials can be cut to length, for example from a prefabricated strand or strand section, and finally joined together.

In the present case, a hybrid component is created which is extremely simple and inexpensive to manufacture and can be adapted to specific load cases as a function of the materials selected. Advantageously, the hybrid component can also have a curved and / or stepped course as a result of reworking the prefabricated endless profiles, since the first endless profile is designed as an open profile and the second endless profile can be inserted into it transversely to the longitudinal extension of the first profile.

The subclaims describe preferred developments or embodiments of the invention.

Thereafter, the endless profiles are preferably non-detachably joined to one another by caulking and / or flanging the first and / or second endless profile. Caulking is understood to mean a joining measure with which a form-fitting and possibly non-positive connection between the endless profiles can be achieved by plastic deformation of the first and / or second endless profile by wedging the two endless profiles inseparably together, so to speak. By contrast, flanging is understood to mean a joining measure in which a form-fitting joint connection is created between the same by bending an edge of the first and / or second endless profile.

As the invention further provides, the endless profiles are preferably joined together along the entire length of the first and / or second endless profile by caulking and / or flanging at least one wall section or edge section of the first and / or second endless profile. This results in a particularly strong and resilient joint connection. In contrast, it can also be advisable to join the endless profiles one below the other only in sections, provided that this is assessed to be sufficient for the current application of the hybrid component to be produced.

An alternative joining measure with regard to the above joining measure is given by the fact that the endless profiles have interlocking and interlocking counter-contours corresponding to one another in the form of latching contours and are joined together by latching. This joining measure can be carried out particularly easily and inexpensively. In order to create a particularly firm and resilient joining connection, the two joining measures can also be combined on the hybrid component, which is accordingly also covered by the invention.

In order to create a particularly firm and resilient joint connection, the endless profiles can also be produced with an interference fit (press fit) and joined together by combining this joining measure with at least one of the joining measures described above on the hybrid component.

In a further development of the invention, it is further provided that the second endless profile has a profile cross-section which, when assembled, closes the profile cross-section of the first endless profile designed as an open profile. The assembly of the endless profiles accordingly creates a closed profile or a tube which has a particularly high strength or a particularly high resistance to deformation, in particular resistance to buckling.

According to a preferred embodiment of the invention, the first endless profile has a U-profile cross section and the second endless profile received by the first endless profile has a T-profile cross section.

According to a further preferred embodiment of the invention, the first endless profile consists of a metal, preferably aluminum or an aluminum alloy, whereas the second endless profile consists of a plastic or a fiber-reinforced plastic. This hybrid lightweight construction advantageously reduces the weight and costs of the hybrid component produced.

The invention further relates to the use of a hybrid component of the type described above, preferably as a reinforcement structure, in particular a vehicle body. By pairing the different materials or materials, the respective positive properties can be used in the best possible way.

1. a) Bereitstellung eines ersten Endlosprofils aus einem ersten Werkstoff, welches erste Endlosprofil ein offenes Profil ist,
2. b) Bereitstellung eines zweiten Endlosprofils aus einem zweiten, sich vom ersten Werkstoff unterscheidenden Werkstoff,
3. c) Einsetzen des zweiten Endlosprofils in das als offenes Profil ausgebildete erste Endlosprofil, und
4. d) wenigstens formschlüssiges Fügen der Endlosprofile untereinander.

The method for producing a hybrid component of the type described above is essentially characterized by the following steps:

1. a) Provision of a first endless profile made of a first material, which first endless profile is an open profile,
2. b) Provision of a second endless profile made of a second material different from the first material,
3. c) inserting the second endless profile into the first endless profile designed as an open profile, and
4. d) at least positive joining of the endless profiles with one another.

A simple and cost-effective method is proposed with which a hybrid component can be produced in accordance with the required mechanical requirements.

• 1 eine perspektivische Darstellung einer ersten vorteilhaften Ausführungsvariante eines erfindungsgemäß ausgebildeten Hybridbauteils,
• 2 den Schnitt „I-I“ nach 2,
• 3 eine perspektivische Darstellung einer zweiten vorteilhaften Ausführungsvariante eines erfindungsgemäß ausgebildeten Hybridbauteils,
• 4 den Schnitt „II-II“ nach 3.

The invention is explained in more detail below using the exemplary embodiments shown schematically in the drawings. However, it is not restricted to these, but rather covers all of the configurations defined by the claims. Show it:

• 1 a perspective illustration of a first advantageous embodiment variant of a hybrid component designed according to the invention,
• 2 the section "II" after 2 ,
• 3 a perspective illustration of a second advantageous embodiment variant of a hybrid component designed according to the invention,
• 4th the section "II-II" after 3 .

• Die 1 und 2 zeigen ein Hybridbauteil 1, welches beispielsweise eine Verstärkungsstruktur, wie einen Querträger einer Fahrzeugkarosserie eines Fahrzeugs, insbesondere Kraftfahrzeugs ausbildet. Das Hybridbauteil 1 weist ein erstes und ein zweites Endlosprofil 2, 3 auf. Wie bereits oben dargetan, werden unter Endlosprofilen im Allgemeinen langgestreckte offene Profile (z.B. U-Profile, Winkelprofile u.a.) und geschlossene Profile (z.B. Rohre) verstanden, die in Abhängigkeit des gewählten Werkstoffes durch Strangpressen, Strangziehen (Pultrudieren) oder Extrusion hergestellt sind. Entsprechend der aktuell zu verzeichnenden Länge des vorliegend zu fertigenden Hybridbauteils 1 werden die zu kombinierenden Endlosprofile 2, 3 beispielsweise von einem vorgefertigten Strang oder Strangabschnitt abgelängt und schließlich untereinander gefügt.

First variant of the invention ( 1 and 2 ):

• The 1 and 2 show a hybrid component 1 which, for example, forms a reinforcement structure such as a cross member of a vehicle body of a vehicle, in particular a motor vehicle. The hybrid component 1 has a first and a second endless profile 2 , 3 on. As already stated above, endless profiles are generally understood to mean elongated open profiles (e.g. U-profiles, angle profiles, etc.) and closed profiles (e.g. pipes) that are produced by extrusion, pultrusion or extrusion, depending on the material selected. Corresponding to the currently to be recorded length of the hybrid component to be produced in the present case 1 become the endless profiles to be combined 2 , 3 for example, cut to length from a prefabricated strand or strand section and finally joined together.

According to this embodiment, the first endless profile 2 as an open profile one in terms of the 1 and 2 upwardly open U-profile cross-section with a standing surface or a floor of the hybrid component 1 forming profile web 2a as well as two parallel profile flanges 2 B , 2c and consists of metal, preferably a light metal, for example aluminum or an aluminum alloy. The second endless profile 3 In contrast, consists of a plastic or fiber-reinforced plastic and has a profile cross-section based on a T-profile cross-section with a profile web 3a and a profile flange arranged at one end 3b on.

The profile web 3a of the second endless profile 3 includes web sections 4th , 5 different stiffness. According to this exemplary embodiment, there is a first web section 4th provided, which forms a box profile. One on the first web section 4th subsequent second web section 5 is formed by an I-profile. Said I-profile is arranged or set down orthogonally to the same as well as on both sides of the I-profile in the longitudinal direction of the second endless profile 3 running transverse webs 6th , 7th ; 8th , 9 reinforced trained. Two such transverse webs are presently provided for each profile side of the I-profile merely by way of example 6th , 7th ; 8th , 9 provided, the transverse webs 7th and 9 the second web section 5 to the profile flange 3b limit. The cross bars 6th , 7th ; 8th , 9 of each profile side are to each other and to the first web section 4th arranged spaced.

On the second web section 5 the profile flange closes accordingly 3b of the T-shaped second endless profile 3 on. The said profile flange 3b of the second endless profile 3 forms two oppositely directed flange sections 10 , 11 from, which in turn each have one with regard to the 1 and 2 have downwardly open U-profile cross-section. The formed and in the longitudinal direction of the second endless profile 3 extending U-profiles are each by means of a first flange 12 the same on the crosspiece 7th connected that the jetty 13th including the connected second flange 14th is directed towards the outside of the profile and, so to speak, per flange section 10 , 11 an elongated receiving groove for one profile flange each 2 B , 2c of the first continuous profile 2 is trained.

Like that 1 and 2 as far as can be seen further, is the second endless profile 3 with T-profile cross-section in the assembly of the hybrid component 1 such with its profile web 3a first into the first continuous profile 2 with U-profile cross-section used that the U-profile-shaped flange sections 10 , 11 of the profile flange 3b of the T-shaped second endless profile 3 over the free front edges of the profile flanges 2 B , 2c of the first continuous profile 2 grab, therefore the profile flanges 2 B , 2c of the first continuous profile 2 are positively received by the respectively assigned receiving groove. The box profile-like first web section 4th and the cross bars 6th , 7th ; 8th , 9 of the second web section 5 are dimensioned in such a way that they are located on the inner contour of the relevant profile flange 2 B , 2c support or hug. A particularly stiff or deformation-resistant hybrid component is advantageous hereby 1 achievable with a closed profile cross-section.

A permanent bond between the endless profiles 2 , 3 to effect, the same are joined together by a form fit. According to this embodiment, this is done by the profile flanges 2 B , 2c of the first continuous profile 2 formed wall sections of the hybrid component 1 along the entire length of the hybrid component 1 caulked in strips (caulking 15th ) and only as an example of the spacing between the box-profile-like first web section 4th and the neighboring crossbars 6th and 8th of the second web section 5 of the first continuous profile 2 inside. Caulking is understood to mean a joining measure with which a form-fitting and, if necessary, force-fitting connection between the endless profiles 2 , 3 by plastic deformation of at least one of the endless profiles 2 , 3 , in this case the first endless profile 2 , is achievable in which the two endless profiles 2 , 3 wedge together.

In addition, it can also be indicated and is accordingly also covered by the invention that the profile flanges 2 B , 2c of the first continuous profile 2 formed wall sections of the hybrid component 1 are / will only be caulked in sections (not shown in the drawing).

Like that 1 and 2 can still be seen, show the endless profiles to be joined 2 , 3 additionally corresponding form-fit and form-fit mating contours 16 , 17th in the form of latching contours. These locking contours, which complement the above-described form fit, also extend along the entire longitudinal extension of the endless profiles to be joined 2 , 3 and can be easily and inexpensively already during the production of the endless profiles 2 , 3 form according to the known extrusion, extrusion or extrusion process. Said form-fit and form-fit mating contours are preferably used 16 , 17th in preparation for the “caulking” joining step of pre-fixing the endless profiles 2 , 3 to each other.

In the present case, the two previously described joining measures "caulking" and "locking" have been used in combination. Alternatively, however, it can also be provided that only one of the two joining measures is used, which is accordingly also covered by the invention (not shown in the drawing).

In order to create a particularly strong and resilient joint connection, the endless profiles 2 , 3 additionally made with interference fit (interference fit) and joined together. In other words, this joining measure is then at least one of the joining measures described above on the hybrid component 1 combined.

Again 1 Moreover, it can be seen that the hybrid component 1 two third endless profiles 18th in the area near the ground of the hybrid component 1 as well as orthogonal to the plane of the profile flanges 2 B , 2c are arranged and as a support structure for the hybrid component 1 act. The third endless profiles 18th have a flattened round cross-section, are oriented in the vertical direction of the profile and each penetrate the first endless profile 2 through corresponding openings 19th in the profile flanges 2 B , 2c through it. The third endless profiles 18th are form-fitting with both the first and the second endless profile 2 , 3 connected by the third endless profiles 18th Recesses 20th have, in which sections of the first and second endless profile when assembled 2 , 3 intervene positively.

Thus, according to this exemplary embodiment, it is provided that first the third endless profiles 18th with the first continuous profile 2 be positively connected by in the profile transverse direction of the first endless profile 2 seen the respective third endless profile 18th in assigned openings 19th of the first continuous profile 2 is inserted and then shifted downwards as seen in the vertical direction of the profile. This is followed by the second endless profile 3 from above into the first continuous profile 2 used in such a way that it is on the one hand by means of the profile flange 3b on the end faces of the profile flanges 2 B , 2c of the first continuous profile 2 and on the other hand with its profile web 3a into an assigned recess 20th penetrates positively, but preferably within said recess 20th of the third continuous profile 18th is based on the same.

• Die 3 und 4 zeigen eine zweite Ausführungsvariante der Erfindung, wobei funktionsgleiche Teile mit gleichen Bezugszeichen wie in den vorherigen Zeichnungsfiguren bezeichnet sind, so dass zu deren Erläuterung auch auf die vorstehende Beschreibung zur ersten Ausführungsvariante der Erfindung verwiesen wird.

Second variant of the invention ( 3 and 4th ):

• The 3 and 4th show a second embodiment variant of the invention, parts with the same function being denoted by the same reference symbols as in the previous drawing figures, so that reference is made to the description of the first embodiment variant of the invention for their explanation.

In the 5 The second embodiment variant of the invention shown differs from the first embodiment variant described above essentially in the selected joining connection by form fit. Then are in the profile flanges 2 B , 2c by partially punching or slitting the same at one end with the profile flanges 2 B , 2c connected strips 21st educated. These are in the implementation of the actual joining step in the structure of the second endless profile 2 caulked into it (see esp. 4th ).

According to this exemplary embodiment, too, the first endless profile 2 a U-profile cross-section, whereas the second endless profile 3 has a profile cross-section oriented towards a T-profile cross-section. The profile web also includes here 3a of the second endless profile web sections 22nd , 23 , 24 different stiffness.

According to this embodiment, a is located on the end faces of the profile flanges 2 B , 2c of the first continuous profile 2 supporting profile flange 3b of the second endless profile 3 provided, which as a base or a floor of the hybrid component 1 acts. In contrast to the first variant of the invention is the profile flange 3b in the present case, flat.

To the profile flange 3b a first, a second and a third web section close one after the other 22nd , 23 , 24 with different stiffness. The first web section 22nd is formed by a box profile. The second web section 23 is through a I-profile with three transverse webs arranged at a distance from one another on both sides 25th , 26th , 27 ; 28 , 29 , 30th educated. The third web section 24 is by two parallel and spaced apart as seen in the transverse direction of the profile and one end on the adjacent crosspiece 27 , 30th Fixed webs oriented in the vertical direction of the profile 31 , 32 formed, the free end of which is preferably on the inner contour of the profile web 2a of the first continuous profile 2 supports.

Furthermore, the box profile-like first web section are also here 22nd and the cross bars 25th , 26th , 27 ; 28 , 29 , 30th of the second web section 23 dimensioned such that the same on the inner contour of the relevant profile flange 2 B , 2c of the first continuous profile 2 support or hug. A particularly stiff or deformation-resistant hybrid component is advantageous hereby 1 created with a closed profile cross-section. The aforementioned strips 21st for form-fitting connection of the two endless profiles 2 , 3 each other, in the caulked state, each engage a spacing between adjacent crosspieces 25th , 26th ; 28 , 29 or between crossbars 25th , 28 and the box profile-like first web portion 22nd a.

In order to create a particularly strong and resilient joint connection, the endless profiles can also be used here 2 , 3 additionally produced with an interference fit (interference fit) and joined together by this joining measure then with the joining measure on the hybrid component described for this embodiment 1 is combined.

All of the above-described exemplary embodiments are based on preferred form-fitting joints, namely caulking and / or locking. The invention also covers any other suitable form-fitting joining measures known per se, such as, in particular, also flanging. Flanging is understood to be a joining measure in which an edge or an edge section of the first and / or second endless profile is bent over 2 , 3 a form-fitting joint connection is created between them (not shown in the drawing).

List of reference symbols

1

Hybrid component

2

first endless profile

2a

Profile web

2 B

Profile flange

2c

Profile flange

3

second endless profile

3a

Profile web

3b

Profile flange

4th

first web section (profile web 3a )

5

second web section (profile web 3a )

6th

Cross web (second web section 5 )

7th

Cross web (second web section 5 )

8th

Cross web (second web section 5 )

9

Cross web (second web section 5 )

10

Flange section (profile flange 3b )

11

Flange section (profile flange 3b )

12

first flange (flange section 10 , 11 )

13

Web (flange section 10 , 11 )

14th

second flange

15th

(Flange section 10 , 11 ) Caulking

16

Form-fit contour

17th

Form-fitting counter contour

18th

third endless profile

19th

Opening (first continuous profile 2 )

20th

Recess (third continuous profile 17th )

21st

Stripes

22nd

first web section (profile web 3a )

23

second web section (profile web 3a )

24

third web section (profile web 3a )

25th

Cross web (second web section 22nd )

26th

Cross web (second web section 22nd )

27

Cross web (second web section 22nd )

28

Cross web (second web section 22nd )

29

Cross web (second web section 22nd )

30th

Cross web (second web section 22nd )

31

Web (third web section 23 )

32

Web (third web section 23 )

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102004049397 A1 [0003]
• DE 102004038138 A1 [0004, 0005]

Claims (10)

Hybrid component (1), with at least one first and at least one second endless profile (2, 3), which consist of a different material and are joined to one another, characterized in that the first endless profile (2) is an open profile into which the second Endless profile (3) is at least partially inserted, and that the endless profiles (2, 3) are non-detachably joined to one another at least by a form fit. Hybrid component (1) according to Claim 1 , characterized in that the endless profiles (2, 3) are joined to one another by caulking and / or flanging the first and / or second endless profile (2, 3). Hybrid component (1) according to Claim 2 , characterized in that the endless profiles (2, 3) along the entire longitudinal extension of the first and / or second endless profile (2, 3) or only in sections by caulking and / or crimping at least one wall section or an edge or edge section of the first and / or second endless profile (2, 3) are joined together. Hybrid component (1) according to one of the preceding claims, characterized in that the endless profiles (2, 3) have mutually corresponding interlocking and interlocking counter contours (15, 16) in the form of latching contours and are joined together by latching. Hybrid component (1) according to one of the preceding claims, characterized in that the endless profiles (2, 3) are additionally produced with an interference fit and are joined to one another. Hybrid component (1) according to one of the preceding claims, characterized in that the second endless profile (3) has a profile cross section which, when assembled, closes the profile cross section of the first endless profile (2) designed as an open profile. Hybrid component (1) according to one of the preceding claims, characterized in that the first endless profile (2) has a U-profile cross section and the second endless profile has a T-profile cross section. Hybrid component (1) according to one of the preceding claims, characterized in that the first endless profile (2) consists of a metal and the second endless profile (3) consists of a plastic or a fiber-reinforced plastic. Use of a hybrid component (1) according to one of the Claims 1 to 8th as a reinforcement structure, in particular a vehicle body. Method for producing a hybrid component (1) according to one of the Claims 1 to 8th , characterized by the following steps: a) provision of a first endless profile (2) made of a first material, which first endless profile (2) is an open profile, b) provision of a second endless profile (3) made of a second material different from the first material , c) inserting the second endless profile (3) into the first endless profile (2) designed as an open profile, and d) at least positive joining of the endless profiles (2, 3) with one another.

Images