Component Arrangement and Method for Producing a Component Arrangement

Abstract

A component arrangement and a method for producing the component arrangement are provided. The component arrangement includes a first component and a second component, which are arranged in an overlapping arrangement and are connected by a laser fillet weld and at two fixing points arranged laterally offset from the laser fillet weld, one of the components is provided with at least one projection, which projects in the direction of the other component and which is arranged and formed such that, when the components are positioned correctly in relation to one another and are pressed together at the fixing points, a flange portion of the first component, set at an angle in the region of the laser fillet weld to be formed, is pressed onto the second component by way of the component edge. For sealing the component arrangement, the fixing points are arranged set back into the overlapping region with respect to the laser fillet weld, and at least between the fixing points there is formed a continuous bonding region, in which the first and second components are bonded to one another.

Claims

1.-13. (canceled)

14. A component arrangement, comprising: a first component and a second component, which are arranged in an overlapping arrangement and are connected via a laser fillet weld, and are connected at two fixing positions arranged laterally offset with respect to the laser fillet weld, wherein at least one protrusion is provided on one of the components, which protrudes in a direction of the other component and is arranged and configured such that with accurate positioning of the first and second components with respect to one another and by pressing together at the two fixing positions, a flange section of the first component is pressed, while being obliquely set in the region of the laser fillet weld to be formed, with the component edge onto the second component, the two fixing positions are arranged set back relative to the laser fillet weld in the overlap region, and a continuous adhesive bonding region, in which the first and second components are adhesively bonded to one another, is formed at least between the two fixing positions.

15. The component arrangement according to claim 14, wherein the first and the second component are respectively connected to one another by a resistance spot weld at the two fixing positions.

16. The component arrangement according to claim 14, wherein the at least one protrusion is formed by the flange section and the flange section is set obliquely relative to the surrounding first component, so that the component edge of the flange section protrudes in the direction of the second component.

17. The component arrangement according to claim 16, wherein the component edge protrudes furthest in a central region of the flange section.

18. The component arrangement according to claim 14, wherein the at least one protrusion is formed in the first component or in the second component and is arranged so that the protrusion in an assembled position of the first and second components is separated at least with a maximum elevation further than the two fixing positions from the component edge to be welded.

19. The component arrangement according to claim 18, wherein the protrusion has in plan view an elongate shape and the protrusion has a maximum elevation in a central region in a longitudinal profile.

20. The component arrangement according to claim 18, wherein the protrusion has in cross section a ramp shape descending toward the component edge.

21. The component arrangement according to claim 18, wherein the protrusion has in plan view a crescent shape with ends pointing toward the component edge.

22. The component arrangement according to claim 18, wherein the protrusion extends over a length which corresponds at least to a length of the laser fillet weld.

23. The component arrangement according to claim 18, wherein a further protrusion, which in cross section has a ramp shape descending toward the component edge, is respectively provided next to or at the two fixing positions.

24. The component arrangement according to claim 18, wherein a flange section is additionally set obliquely relative to the adjacent first component so that the component edge of the flange section protrudes in the direction of the second component.

25. The component arrangement according to claim 14, wherein a crescent, which forms a degassing cavity between the first and second components, is respectively formed on the right and left next to the laser fillet welding seam on the component edge.

26. A method for producing a component arrangement, comprising: accurately positioning a first component and a second component in an overlapping arrangement; pressing together and fixing the first and second components at least at two fixing positions, wherein an adhesive arranged between the two components adhesively bonds the two components to one another in a continuous adhesive bonding region extending between the two fixing positions, and wherein a protrusion is provided on one of the components, which protrudes in a direction of the other component and is arranged and configured such that by pressing together at the two fixing positions, a flange section of the first component is pressed, while being obliquely set, with a component edge onto the second component; and forming a laser fillet weld between the component edge of the first component and the second component.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIGS. 1, 1A and 1B are schematic representations of an exemplary component combination in plan, front (before assembly) and side (before assembly) views, respectively.

[0036] FIGS. 2, 2A and 2B are schematic representations of an exemplary component combination in plan, front (before assembly) and side (before assembly) views, respectively.

[0037] FIGS. 3, 3A and 3B are schematic representations of an exemplary component combination in plan, front (before assembly) and side (before assembly) views, respectively.

[0038] FIGS. 4, 4A and 4B are schematic representations of an exemplary component combination in plan, front (before assembly) and side (before assembly) views, respectively.

[0039] FIGS. 5, 5A and 5B are schematic representations of an exemplary component combination in plan, front (before assembly) and side (before assembly) views, respectively.

[0040] FIGS. 6, 6A and 6B are schematic representations of an exemplary component combination in plan, front (before assembly) and side (before assembly) views, respectively.

DETAILED DESCRIPTION OF THE DRAWINGS

[0041] The component combinations 1A to 1F shown in FIGS. 1 to 6 respectively contain a first component or upper sheet 10 and a second component or lower sheet 20, which are arranged in an overlapping arrangement.

[0042] In order to produce the component combinations 1A to 1F, the components 10, 12 are positioned accurately with respect to one another, an adhesive being arranged between the components in an adhesive bonding region 30. The components are initially pressed together at the fixing positions 40 with a force-fit and are fixed to one another, preferably by resistance welding points. A laser welding seam 50 is subsequently formed, which extends as a fillet weld along a component edge 11, 11A, 11B of the first component 10 and connects the latter to the second component 20. By the pressing together and fixing, the components are furthermore adhesively bonded to one another in the adhesive bonding region 30. The adhesive bonding region 30 extends at least between the fixing points 40 and preferably over the entire length of the overlap region. The adhesive bonding region 30 extends substantially parallel to the component edge 11, 11A, 11B but—like the fixing points 40—offset inward from the component edge.

[0043] In order to produce the laser seam 50, a technical zero clearance is required between the components 10, 20. In order to achieve this without further clamping technology, in the exemplary embodiment of FIG. 1, a flange section 12A adjacent to the component edge 11A is set obliquely in the direction of the lower component 20 and protrudes from the rest of the first component 10. This may be seen in FIGS. 1A and 1B, in which the two components are represented before assembly of the component arrangement. Preferably, the component edge 11A protrudes most in the direction of the second component 20 in a central region and recedes on both sides back in the direction of and to the level of the first component.

[0044] If the two components 10, 20 are now brought together in the assembly position, the protruding component edge 11A bears on the second component 20 lying underneath. By pressing together and fixing at the fixing points 40, the pressure is increased further. The increased application pressure in the region of the component edge 11A ensures a technical zero clearance. The component edge 11A may in this case be partially bent back. By the flange section 12A being obliquely set, a degassing cavity is furthermore provided. In this case, even raising in the millimeter range may be sufficient to achieve the desired effect. The obliquely set flange 12A may be made very narrow and protrude only a few millimeters from the component edge 11A into the component interior. The adhesive bonding region 30 is in this configuration arranged behind the flange section 12A as viewed from the component edge 11A. A tight component arrangement, which requires only little installation space, is obtained.

[0045] FIG. 2 shows a further exemplary embodiment. This differs from the configuration of FIG. 1 in that the flange section 12B not only is shaped and protrudes with the component edge 11B in the direction of the second component 20, but in that the flange section 12B initially extends upward (away from the second component 20) and only then onto the second component 20 while being obliquely set. This may be seen in FIGS. 2A and 2B. When shaped in this way, the flange section 12B forms a spring element which can yield resiliently when placed onto the second component 20. The component edge 11B to be welded preferably protrudes uniformly relative to the second component 20. The contact between the component edge 11B and the second component 20 is ensured by the spring element. The increased cavity between the components improves degassing during the laser welding process. In addition, two degassing openings 13 laterally adjacent to the component edge to be welded, through which gas can escape in a controlled manner from the cavity between the components, are additionally provided in the first component 10.

[0046] FIGS. 3 to 6 show configurations which select an approach that is different but has an equivalent effect. In this configuration, a protrusion 14, which protrudes in the direction of the second component 20 and is arranged behind the fixing positions 40 with respect to the component edge 11, is formed in the first component 10. If the components 10, 20 are now placed onto one another in the assembly position and pressed against one another at the fixing points 40, the upper sheet 10 tilts with its edge 11 in the direction of the second component 20 and comes to bear with the latter. In this way, the flange section 12 adjacent to the tilted component edge 11 is obliquely set, so that the aforementioned degassing cavity and at the same time a technical zero clearance at the component edge are produced.

[0047] FIG. 3 shows an example in which the protrusion 14 has an elongate crescent-like shape in plan view. The ends of the protrusion 14 point toward the component edge, and between the ends the protrusion 14 extends in the shape of a crescent away from the component edge 11 and back toward the latter. As seen in a longitudinal section, the protrusion 14 protrudes most in the central region and descends in the shape of a ramp toward the ends, see FIG. 3A. FIG. 3B shows the cross section of the protrusion 14, which is configured in the shape of a ramp in the direction of the component edge 11 and tails off flatly.

[0048] FIG. 4 shows a further exemplary embodiment. The protrusion 14A is again arranged behind the fixing points 40 (as seen from the component edge 11) and has a straight elongate shape in plan view. In longitudinal section, it is configured in the shape of an arc, with the protrusion 14A having the greatest height in the central region. Furthermore, two further protrusions 15A, which protrude in the direction of the second component 20, are provided at the fixing points 40 in the first component. The further protrusions 15A are configured more shallowly in their overall height than the central protrusion 14A. The protrusions 15A are configured in the shape of ramps and each form a ramp descending toward the component edge 11.

[0049] In the configuration according to FIGS. 5, 5A and 5B, the obliquely set flange section 12A of FIG. 1 is combined with three protrusions 14B and 15B arranged behind the fixing positions. The protrusion 14B is configured in plan view as a straight elongate body which is arranged substantially parallel to the component edge 11. As seen in longitudinal section, the protrusion 14B protrudes most relative to the rest of the first component 10 in the central region and its height decreases in the shape of a ramp toward the sides. Arranged next to the fixing positions 40, there are two further protrusions 15B, which are respectively configured as ramps descending toward the component edge. The protrusions 15B are set back in relation to the welding seam 50, or component edge 11, behind the fixing positions 40.

[0050] FIG. 6 shows a configuration in which a protrusion 14C is provided, the latter extending as a straight body in plan view between the fixing positions 40 and continuing beyond the latter. The protrusion 14C is configured in the shape of a ramp as seen in cross section, its greatest height in relation to the component edge 11 being formed behind the fixing positions 40. In this exemplary embodiment, the protrusion is also arranged in the adhesive bonding region 30. In order to improve the degassing, a crescent 16, by which a possibility of degassing transversely with respect to the component edge is provided, is respectively arranged on the component edge 11 on the right and left laterally next to the laser seam 50.

[0051] The protrusions 14, 14A, 14B, 14C, 15A and 15B shown in FIGS. 3 to 6 may also be formed in the second component 20 instead of in the first component 10.

LIST OF REFERENCES

[0052] 1A-1F component combination [0053] 10 component [0054] 11, 11A, 11B component edge [0055] 12, 12A, 12B flange section [0056] 13 degassing opening [0057] 14, 14A, 14B, 14C protrusion [0058] 15A, 15B protrusion [0059] 16 crescent [0060] 20 component [0061] 30 adhesive bonding region [0062] 40 fixing positions [0063] 50 laser welding seam