Method for producing a component connection

Abstract

The invention relates to a method for producing a component connection with several components (110, 120, 130) by means of adhesive bonding, comprising the steps: - applying an adhesive (140) to the bonding surfaces of the components (110, 120, 130), - aligning the components (110, 120, 130) with each other, and - introducing thermal energy (Q) into the adhesive (140) for its at least partial curing, wherein the components (110, 120, 130) are additionally welded to one another, and thermal energy (Q) introduced into the components (110, 120) during the welding process is transferred via the adhesive surfaces to the adhesive (140) for its curing.

Description

[0001] The invention relates to a method for producing a component connection according to the preamble of claim 1.

[0002] DE 10 2020 134 431 A1 discloses a method for producing an adhesive bond between a first component and a second component, wherein the first component has a cavity and the second component has a pin. The cavity is filled with an adhesive, and the components are aligned with one another such that the pin protrudes into the adhesive within the cavity. To cure the adhesive, heating is carried out by means of targeted, localized heat input into the adhesive.

[0003] The invention is based on the object of providing an improved method for producing a component connection.

[0004] The object is achieved according to the invention by a method which has the features specified in claim 1.

[0005] Advantageous embodiments of the invention are the subject of the subclaims.

[0006] The invention relates to a method for producing a component connection of several components by means of adhesive bonding, comprising the steps: - Aligning the components to each other, - Applying an adhesive to the bonding surfaces of the components and - Introduction of thermal energy into the adhesive to cure it.

[0007] According to the invention, the components are additionally welded together, whereby thermal energy introduced into the components during the welding process is transferred via the adhesive surfaces to the adhesive for its curing.

[0008] The combination of two manufacturing processes creates a hybrid component joint. By incorporating the thermal energy generated during welding and / or additional energy input from heated tools such as a clamp into the adhesive, the curing time of the adhesive is shortened, thus reducing cycle times in production.

[0009] Furthermore, by utilizing the thermal energy generated during welding, efficiency is improved without additional measures, thus saving energy for the production of the components.

[0010] Furthermore, new design possibilities and the creation of new applications for different connections arise, for example in the production of electrical energy sources that are connected to frame components of vehicles or for body structures.

[0011] Furthermore, the stiffness and thus the product quality can be increased by creating strength composites.

[0012] Furthermore, there is a high degree of scalability, since several components, depending on the size and number of adhesive surfaces, can be introduced for a uniformly homogeneous heat transfer.

[0013] Furthermore, this results in a high degree of flexibility in materials and material combinations. For example, aluminum components are bonded to battery cells and, due to their good thermal conductivity, are particularly suitable for incorporating thermal energy into the adhesive.

[0014] Furthermore, the process can be implemented with existing systems and is therefore easy to integrate into existing manufacturing processes.

[0015] Furthermore, various welding processes are available, such as laser welding or gas-shielded welding, and these can be supported by additional temperature-controlled tools, such as temperature-controlled hold-down devices.

[0016] Embodiments of the invention are explained in more detail below with reference to drawings.

[0017] Showing: Fig. 1 schematically shows a device for producing a component connection with several components by means of gluing and welding, and Fig. 2 schematically shows a section of the Fig. 1 shown device.

[0018] Corresponding parts are provided with the same reference numerals in all figures.

[0019] Fig. 1 schematically shows a device 100 for producing a component connection with several components 110, 120, 130 by means of gluing and welding.

[0020] The device 100 comprises a first component 110, two second components 120, several third components 130, an adhesive 140 and a welding unit 200 with a hold-down device 210.

[0021] The second components 120 are L-shaped and arranged with a short side on the first component 110 in a respective overlapping area. The long sides of the second components 120 extend vertically downward. Between the second components 120 and below the first component 110, a plurality of third components 130 are arranged in stacks. The adhesive 140 is applied to a surface between each of the components 110, 120, 130, a so-called adhesive surface.

[0022] The short side of the second component 120, shown on the right, is fixed to a surface of the first component 110 by means of the hold-down device 210. The welding unit 200, in this example a laser welding unit 200, emits a laser beam 201, which strikes the surface of the second component 120 shown on the right and connects the second component 120 shown on the right to the surface of the first component 110 by means of a weld seam 202.

[0023] The hold-down device 210 can, for example, also transfer thermal energy Q into the second component 120 shown on the right and / or the resulting component connection from components 120 and 110.

[0024] An area around the weld seam 202 is heated during welding, so that the first component 110 and the second component 120 shown on the right absorb thermal energy Q. This thermal energy Q is, as in Fig. 2, distributed and forwarded in the first component 110 and the second component 120 shown on the right according to the arrows 300.

[0025] The first component 110 and the second components 120 have, for example, a thermal conductivity ≥ 80 W / (m*K), in particular ≥ 200 W / (m*K).

[0026] Fig. 2 shows a schematic section of the Fig. 1 illustrated device 100.

[0027] The thermal energy Q is transferred into the adhesive 140 via the surfaces of the first component 110 and the second component 120, which are in contact with the adhesive 140, according to the arrows 310.

[0028] For example, depending on the adhesive, the reaction rate can double for every 10 °C temperature difference, halving the curing time. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2020 134 431 A1

[0002]

Claims

[1] Method for producing a component connection with several components (110, 120, 130) by means of adhesive bonding, comprising the steps: - applying an adhesive (140) to the bonding surfaces of the components (110, 120, 130), - aligning the components (110, 120, 130) with each other, and - introducing thermal energy (Q) into the adhesive (140) to at least partially cure it, characterized by that the components (110, 120, 130) are additionally welded together, wherein thermal energy (Q) introduced into the components (110, 120) during the welding process is transferred via the adhesive surfaces to the adhesive (140) for its at least partial curing. [2] Method according to claim 1, characterized by that additional thermal energy (Q) is transferred into at least one of the components (110, 120) by means of a tempered tool. [3] Method according to claim 2, characterized bythat a hold-down device (210) is used as a tool. [4] Method according to one of the preceding claims, characterized by that the components (110, 120) have a thermal conductivity ≥ 80 W / (m*K). [5] Method according to one of the preceding claims, characterized bythat at least one third component (130) is arranged on the first component (110) and / or on the at least one second component (120), and that an additional adhesive (140) is located between the first component (110) and the third component (130) and / or between the second component (120) and the third component 130, in which additional adhesive the thermal energy (Q) which is introduced into the first component (110) and / or the second component (120) during the joining process of the at least second component (120) to the first component (110) is distributed over the first component (110) and / or the second component (120) and is transferred from the first component (110) and / or the second component (120) into the adhesive (140) between the components (110, 120, 130). [6] Method according to one of the preceding claims, characterized by that the first component (110) and / or the second component (120) are / is formed from aluminum. [7] Method according to claim 6, characterized bythat the first component (110) and / or the second component (120) are / is body components and / or frame components of an energy storage device, wherein the third components (130) are body components or energy storage cells.

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