WO2018171962A1 - Method for producing a composite component comprising at least two component parts, and composite component - Google Patents

Abstract

The invention relates to a method for producing a composite component (2) for a motor vehicle, comprising at least two component parts (4, 6), said composite component comprising at least one first component part (4) and at least one functional element (10) that can be attached to a joint (8) of the first component part (4), said method comprising the following steps: a. arranging the at least one functional element (10) on the joint (8) of the first component part (4); and b. producing a bonded joint connection between the functional element (10) and the first component part (4) at least by thermal joining. The invention also relates to a corresponding composite component (2).

Description

Verfahren zum Herstellen eines- wenigstens zwei Bauteile umfassenden Bauteilverbunde sowie BauteilVerbund

Method for producing a composite component comprising at least two components and component assembly

The invention relates to a method for producing a comprehensive at least two components

 Composite component and a composite component, which is produced by such a method - is.

In the context of lightweight construction, it is increasingly necessary, in particular in vehicle construction, to connect components made of different, in part alien, materials with one another, such as e.g. a non-ferrous material component, such as a non-ferrous material; Aluminum or a fiber-reinforced plastic, with a second component, which consists of a ferrous material, in particular a

Steel material, is formed. Direct welding or soldering of these components is often not possible. Nevertheless, to To enable counterpoint welding, it is known to use so-called functional elements.

Bauteile umfassenden BauteilVerbunds ist bekannt aus lemente ähnlich wie bei einem e der zu fügenden BauteileA method for producing at least two

Component comprehensive component composite is known from elements similar to one e of the components to be joined

stanzt oder eingelegt . Die Funktionselemente sind aus einem Werkstoff ausgebildet, der mit dem Werkstoff des anderen Bauteils verschweißbar ist . Die beiden zu fügenden Bauteile werden zueinander positioniert und eine Fügeverbindung, z.B. eine

punched or inserted. The Functional elements are formed of a material which is weldable with the material of the other component. The two components to be joined are positioned to each other and a joint, such as a

 Welded connection, formed on the functional element.

An object of an embodiment of the invention is to provide another convenient method of manufacturing at least two components

 TeilVerbunds as well as a. By this method manufactured component erbünd suggest.

umfassenden BauteilVerbunds für ein Kraftfahrzeug, der mindestens ein erstes Bauteil und mindestens ein This object is achieved by a method for producing a at least two components

comprehensive BauteilVerbunds for a motor vehicle, the at least one first component and at least one

der Fügestelle des ersten Bauteils ; b . Erzeugen einer stoffschlüssigen Fügeverbindung Functional element comprises, which is fixable at a joint of the first component with the steps: a. Arranging the at least one functional element

the joint of the first component; b. Generating a cohesive joint connection

 between the functional element and the first component at least by thermal joining.

Due to the fact that the at least one functional element is fixed to the first component via thermal joining, a suitable alternative method is

Production of a component material realized. The functional element can be arranged by machine at the joint of the first component.

In one embodiment of the method, it proves to be advantageous if the component comprises at least one second component which can be fixed by the functional element at least in sections, in particular indirectly to the first component, if it comprises the following further steps: a. Positioning and aligning the second component relative to the first component; and b. Generating an at least cohesive

 Joint connection between the functional element and the second component,

In addition to producing a cohesive connection, a Formschiuss between the functional element and the second component can be produced, whereby the strength of the compound is further increased.

The method steps can be carried out in any technically meaningful order. The process can be carried out successively in the steps. In addition, it is conceivable, for example, that the functional element is joined in a material-locking manner only with the second component and then with the first

Component is thermally joined.

The first component and the second component can The first component and / or the second component may be formed as a sheet or plate.

In principle, it is conceivable that both the first

Component as well as the second component the same

Material or different materials, in particular different foreign materials include. It proves to be advantageous if the functional element comprises a material which is the same or similar to the material of the second component. In such a case the creation of the integral joining connection between the funct ^'is ionselemente and the second component which

For example, welding, soldering and / or gluing may be facilitated,

The method can be designed efficiently if the production of a material-fit joint connection between the functional element and the second component comprises at least one thermal joining.

The production of a cohesive joint connection can basically consist exclusively of thermal joining. However, it is also conceivable that more

Be attracted additional method for producing a cohesive connection.

It proves to be advantageous if the thermal joining comprises at least one areawise baking or baking, a compression and / or a thermal shrinkage of the functional element, the first component and / or the second component. It is conceivable that only the functional element by ^' the thermal joining its at least partially

 Aggregate state changes and enters into a material connection with the first component and / or the second component.

 However, the first component and / or the second component du ch the thermal joining change its state of aggregation at least in the region of the joint and make a material connection with the functional element. As a result, a small space and power requirement when joining the functional element with the first component, or with the second component is necessary. At the same time, the wear during the introduction of the functional element to the first component and / or to the second component is reduced.

By thermal joining in the form of a single or

 On ackens, a thermal shrinkage or a compression of the functional element, the first component and / or the second component can, in any case

 existing facilities and / or to be carried out

 Process steps are used, whereby existing procedures can be optimized and procedures can be shortened. In a further development of the method, it proves to be advantageous if the thermal joining a, in particular parallel, processing step of

 Furnace process, such as hot forming (WU furnace), press hardening (PHS), hot tooling and / or

cathodic dip coating (KTL). In such case, can be used on existing equipment / process steps and a joining, such as

Funktioneiements be performed with the first component in parallel with an already necessary and to be performed other method step.

In development of the latter inventive concept, it proves to be advantageous _? if the thermal

Add an at least partially melting a

Material of the functional element, the first component and / or the second component comprises, from the one

Intermediate layer, a surface coating or the functional element, the first component and / or the second component is formed entirely and / or if the on or baking of the functional element, the first component or the second component comprises a temperature which is higher than that Melting temperature of the melted

Material of the functional element, the first component or the second component.

If such a ^', the function element, the first component and / or the second component comprise a material in its entirety or at least in some areas, which changes its state of aggregation during thermal joining and melts. By cooling and curing the material of the

 Functional element is the cohesive connection with the first component and / or produced with the second component. Thermal joining can be done without any additional components

take place, whereby the method component reduced In addition, the process can be continued

 improve if it includes the following additional steps:

Generating a, in particular continuous,

 Recess at the joint of the first component and / or on the second component;

Possibly. Introducing a chamfer to the recess of the first component on at least the second

 Component side facing away from and / or introducing a chamfer to the recess of the second component on at least the side facing away from the first component;

At least partially arranging the at least one functional element in the recess of the first component and / or the second component. By providing a recess in the first component and / or in the second component, the functional element can be arranged in a simple manner on the first component and / or on the second component for .Montage. The recess may be continuous or extend only partially into the first component and / or into the second component. Here, the recess

In Weiterbildung letztgenannten Verfahrensschritt erweist es sich als vorteilhaft, wenn das Verfahren als weiteren Schritt umfasst : a. Einpressen des Funktionselements in die Ausnehmung des ersten Bauteils und/ oder des zweiten Bauteils ; formed, for example, in the manner of a blind hole.

In the last-mentioned method step, it proves to be advantageous if the method comprises a further step: a. Pressing the functional element into the recess of the first component and / or the second component;

By pressing the functional element in the

 Recess of the first component and / or .the second component can be a positive connection and / or a

Form fit. As a result, the connection between the first component and the second component is reinforced.

In addition, the task is solved by a

Composite component for a motor vehicle, in particular produced according to one of the aforementioned processes for producing an at least two components comprising component composite, with at least one first component comprising at least one joint and at least · a functional element which non-detachably on the ^'joining point of the first component and cohesively is determined, wherein the functional element by thermal joining

Cohesive _. and indissolubly fixed on the first component.

In one embodiment, the component composite comprises a second component which is insoluble and at least

cohesively fixed on the functional element.

In addition to producing a cohesive connection, and the second component, whereby the

Strength of the connection is further increased.

Moreover, it proves to be advantageous if the functional element and the first component comprise different, in particular foreign, materials and / or if the functional element and the second component identical or similar, in particular the same materials, ssen. The first component and / or the second component may for example be formed from a steel material or from a non-ferrous material, such as aluminum or a fiber-reinforced plastic.

In principle, it is conceivable that both the first component and the second component comprise the same material. Furthermore, it is conceivable that both components comprise a different, in particular a respective foreign material. This makes it possible to design the individual components weight-optimized and realize the body of a vehicle weight-reduced.

In addition, it proves to be advantageous if the first component at the joint and / or the second component comprises at least one, in particular continuous, recess in which the functional element is non-positively and / or positively fixed and the

especially at least on each other

Component facing side is arranged. By providing a recess that can

Functional element can be easily arranged on the first component and / or on the second component. This is particularly advantageous if the

Component composite is not yet joined, causing the

at least one functional element in the at least one recess can already be arranged aligned for subsequent joining. The recess can basically be formed continuously. In addition, the recess can only

partially extend in the first component and / or in the second component. There, the recess respectively

For example, include a blind hole.

To further assemble the functional element

facilitate and in a joined state a

To achieve positive fit, it proves to be advantageous if the recess in the first component and / or in the second component is continuous and in each case on the side facing away from the respective other component comprises a chamfer.

The provision of a chamfer proves to be particularly advantageous if the thermal joining of

Functional element to the first component and / or to the second component, a pressing of the functional element takes place. In this case, the functional element deforms in such a way that it also occupies the space formed by the chamfer and thereby forms a rear grip with the first component or with the second component in the joining direction. Finally, it proves to be advantageous if the functional element, the first component and / or the second component in an intermediate layer, in a

Surface coating or in gaz a material

comprising a lower melting temperature than the thermal joining temperature.

If the functional element comprises in whole or in part a material which has a lower melting temperature than at least the first component, no further material is necessary for joining. This is done in a simple manner, for example in the context of a

Furnace process, a joining of the functional element with the first component allows.

Further features, details and advantages of the invention will become apparent from the appended claims, the drawings and the following

DESCRIPTION OF PREFERRED EMBODIMENTS OF THE METHOD FOR PRODUCING A COMPONENT COMPOSITION COMPRISING AT LEAST TWO COMPONENTS AND MULTIPLE COMPONENT COMPOUNDS

In the drawing shows:

Figure 1 is a schematic flow diagram of a first

 Embodiment of the invention

 Method;

FIG. 2 shows a schematic lateral section of a first exemplary embodiment of the invention

Component assembly according to the invention; Figure 3 is a schematic side sectional view of a second embodiment of the

 Component assembly according to the invention; Figure 4 is a schematic side sectional view

 a third embodiment of the

 Component assembly according to the invention;

Figure 5 is a schematic side sectional view of a fourth embodiment des

 Component assembly according to the invention in an unfastened state;

Figure 6 is a schematic side sectional view of the fourth embodiment of the

 Component assembly according to the invention according to Figure 5 in a joined state;

Figure 7 is a schematic flow diagram of a second

Verfahrens . Embodiment of the invention

Procedure.

Figures 2 to 6 show a total of the

 Reference numeral 2 provided component composite 2 for a

 Motor vehicle (not shown in the figures). The component composite 2 comprises a first component 4 and a second component 6. The first component 4 and the second component

Component 6 are connected to one another at a joint 8 of the first component 4. In addition, the includes

 Composite component 2, a functional element 10 which rests against the joint 8 of the first component 4 and there on the first component 4 insoluble and cohesively

 is fixed. In the one shown in the figures

Embodiment, the functional element 10 by. v, ^^ -, ν ct-r, o hi ii ~ r ntiri ιιπΐ nshar at the first In the case of the component 2 shown in the figures, the second component 6 is connected by a material connection

Combine that shown in the figure

Embodiment formed by welding, soldering and / or by gluing, fixed to the functional element 1 0. As a result, the second component 6 is indirectly fixed to the first component 4 via the functional element 10.

On the basis of Figure 1 is first to a first

Embodiment of the method according to the invention received. FIG. 1 shows a schematic sequence of a method for producing a component composite 2 comprising at least two components. Here, the component composite 2 comprises the first component 4, the second

Component 6 and the functional element 10th

In a first step 101, the functional element 10 is arranged at the joint 8 of the first component 4. In a following step 102, a cohesive joining connection between the functional element 10 and the first component 4 is produced by means of thermal joining. The thermal joining may in this case comprise a caking or baking of the at least one functional element 10 'on or into the first component 4, a compacting of the functional element 10 and / or a thermal shrinkage of the functional element 10. Step 102 may, for example, under a

Processing step of a furnace process, such as

Hot forming, press hardening, processing by hot tools and / or cathodic dip coating done. 10, for example, this material in whole, in one

Intermediate layer or in a surface coating. ^· The temperature during the execution of step 102 in such a case includes one which is higher than the

Melting temperature of the material to be melted

Functional element 10 and at the same time is lower than a melting temperature of the first component. 4

In a further step 103, the second component 6 is positioned relative to the first component 4 and

aligned.

In a further step 104, a material-fit joint connection between the functional element 10 and the second component 6 is generated. This may include welding, brazing and / or gluing at step 104.

Moreover, it is conceivable that in step 104, the production of a material-fit joint connection is likewise effected by thermal joining according to step 102 between the functional element 10 and the second component 6.

FIG. 2 shows a first exemplary embodiment of the invention

Partial composite 2. In this, the functional element 10 is joined to the first component 4. The second component 6 is indirectly connected to the first component 4 via welding, soldering and / or gluing to the functional element 10.

FIG. 3 shows a second exemplary embodiment of the invention

Component composite 2, in which the functional element 10 is arranged in a recess 12 of the first component 4. In this recess 12 of the first component 4, the lj. "4- 1 Π _^ - ^ ü + - 1 -i nl _lo ff ff _Tl H Force has been pressed into the recess 12.

Also in the embodiment according to FIG. 3, the second component 6 is indirectly connected to the first component 4 by means of gluing, soldering and / or welding to the functional element 10.

FIG. 4 shows a third exemplary embodiment of the invention

Component composite 2, in which both the first component 4 and the second component 6 each comprise a recess 12. The functional element 10 is arranged in such a case after joining both in the recess 12 of the first component 4 and in the recess 12 of the second component 6.

Figures 5 and 6 show a fourth

 Embodiment of the component composite 2, in which the first component 4 comprises a continuous recess 12. On the side facing away from the second component 6 of the first component 4, the recess 12 comprises a chamfer 14th

FIG. 5 shows the component composite 2 in an unexpanded exploded view, and FIG

Teilverbünd 2 according to Figure 5 in a joined

 Presentation. -About the schematic

 Process view according to Figure 7 in conjunction with Figures 5 and 6, the fourth embodiment is explained according to Figures 5 and 6:

In a first step 701 is in the first component 4, a through recess 12 and one on the. second component 6 facing away from the first component 4 a chamfer 14 is introduced. In a second step 702 Functional element 10, both the recess 12 and the area formed by the chamfer 14 in whole and forms a positive and positive connection. In a subsequent step 703, the

 Funktxonselement 10 cohesively by thermal

Joined to the first component 4 set. In one

further step 704, the second component 6

cohesively connected to the functional element 10, wherein the cohesive joint connection a

 Welding, soldering, and / or bonding may include.

Moreover, it is conceivable that before or after the introduction of the recess 12 into the first component 4, the functional element 10 on the joining parts 8 of the first

 Component is arranged. Furthermore, it is conceivable that between step 703 and 704 the second component 6 is positioned and aligned relative to the first component 4. The features disclosed in the preceding description, in the claims and in the drawing

Invention, both individually, as well as in any combination in the realization of the

Invention in its various embodiments

be essential.

C o m p a n c e m e n t i o n s

component composite

 first component

 second component

 joint

 functional element

Ausnehmung

recess

 chamfer

 - -104 procedural steps

 · -704 procedural steps

Claims

P a n t a n s p r e c h e Method for producing a component composite (2) comprising at least two components for a motor vehicle, de at least one first component (4) and at least one functional element (10), which at a joint (8) of the first

Functional element (10) and the second component (6) comprises at least one thermal joining. 4) Method according to at least one of the preceding claims, characterized in that the  thermal joining at least partially a baking or baking, a compaction and / or a thermal shrinkage of the functional element (10), the first component (4) and / or the second ^'  Component (6). 5) Method according to at least one of the preceding Claims, characterized in that the  thermal joining a, in particular parallel, processing step of a Ofenprczesses, such as  Hot forming (WU furnace), press hardening (PHS),  Processing by hot tools and / or  cathodic dip painting (KTL). 6) Method according to claim 5, characterized in that the thermal joining comprises an at least partially melting of a material of the functional element (10), the first component (4) and / or the second component (6), from which an intermediate layer, a OberflächenbeSichtung or the Funktionsseiement (10), the first component (4) or the second component (6) is formed in its entirety and / or that the on or baking of the functional element (10) ^· includes a temperature which is higher than the melting temperature of the material to be melted of the functional element (10) of the first component (4) or of the second component (6). a. Producing a, in particular continuous, recess (12) at the joint (8) of the first component (4) and / or on the second component (6); b. Possibly . Introducing a chamfer to the recess (12) of the first component (4) on at least the second component (6) facing away from and / or introducing a chamfer to the  Recess (12) of the second component (6) on at least the first component (4) opposite side;

c. At least partially arranging the  at least one functional element (10) in the recess (12) of the first component (4) and / or the second component (6). Method according to claim 7, characterized by Step: a. Pressing the functional element (10) into the recess (12) of the first component (4) and / or of the second component (6); Component assembly (2) for a motor vehicle, in particular produced according to a method for producing a component composite (2) comprising at least two components according to one of  Claims 1 to 8, with at least a first Component ^" (4), which comprises at least one joint (8) and with at least one functional element (10), at the joint (8) of the first component (10) is determined by thermal .Füge cohesively and permanently on the first component (4). 10) component composite according to claim 9, characterized  by at least one second component (6) which is fixed inseparably and at least materially firmly on the functional element (10). 11) composite component (2) according to claim 9 or 10, characterized in that the functional element (10) and the first component (4) comprise different, in particular foreign, materials  and / or that the functional element (10) and the second component (6) are the same or. similar,  especially similar, include labels. 12) composite component (2) according to one of claims 9 to 11, characterized in that the first component (4) at the joint (8) and / or the second component (6) at least one, in particular continuous, recess (12) in which the

 Functional element (10) non-positively and / or positively fixed and which is in particular arranged at least on the respective other component side facing. 13) composite component (2) according to claim 12, characterized in that the recess (12) in the first component (4) and / or in the second .Bauteil (6) is continuous and in each case at least on the side facing away from the other component includes a chamfer. 14) composite component (2) according to one of claims 9 to and / or the second component (6) partially, in an intermediate layer, in one  Surface coating or entirely comprises a material having a lower melting temperature than the temperature during thermal joining.