METHOD FOR MANUFACTURING A SIDE PANEL FOR A DRAWER

Description

[0001] The invention relates to a method for manufacturing a side panel for a drawer, comprising at least one support profile made at least partially of a metallic material and at least one hollow profile made at least partially of a metallic material, wherein the at least one support profile and the at least one hollow profile are welded together by means of at least one laser welding joint. The invention further relates to a side panel for a drawer, comprising at least one support profile and at least one hollow profile, wherein the at least one support profile and the at least one hollow profile are made at least partially of a metallic material and are welded together by means of at least one laser welding joint. The invention further relates to a support profile for such a side panel.Furthermore, the invention relates to an arrangement consisting of at least one laser and at least one such side wall.

[0002] Side panels for drawers are known from the prior art, comprising a support profile and a hollow profile made of metal, wherein the support profile and the hollow profile are connected to each other by means of a laser via a laser welding connection.

[0003] A disadvantage of the current state of the art is that, for a safe and proper laser weld while maintaining the functionality of the support profile as a container rail, the laser weld points must be located deep within the support profile. These positions are difficult to access for lasers of this size, especially with narrow support profiles. Therefore, the laser must be positioned outside the support profile at a distance from the desired weld point, emitting laser light at an unfavorable angle and at a considerable distance from the material to be welded.Due to the unfavorable angle, a significant amount of the laser light intended for the laser welding process is reflected, at least temporarily. This results in a loss of laser intensity and energy, and also causes unwanted heating (potentially leading to deformation) in areas of the side panel not intended for laser welding. Improper laser welding reduces the service life of drawers and poses a risk of the supporting profile separating from the hollow profile during use of the side panel. Furthermore, a visually flawless appearance of laser welds is essential, as otherwise, the impression given is that the side panel is not safe for use under load.

[0004] Further side panels for drawers are already known from publications WO 2017 / 106890 A1 and US 2018 / 117707 A1.

[0005] The objective technical object of the present invention is therefore to provide a method for manufacturing a side wall, a side wall, a support profile and an arrangement that is improved compared to the prior art, in which the disadvantages of the prior art are at least partially eliminated, and which are characterized in particular by a reduced laser power required for the laser welding joint and / or an improved quality of the laser welding joint with increased strength of the side wall.

[0006] This problem is solved by the features of claim 1.

[0007] According to the invention, it is provided that the at least one support profile and / or the at least one hollow profile has at least one embossing to increase the energy absorption of laser light from at least one laser for the formation of the at least one laser weld joint in an area and / or around the area of ​​the at least one laser weld joint before welding, and that the at least one embossing is melted at least partially during the welding process.

[0008] This makes it possible for the side wall - in particular the at least one support profile and / or the at least one hollow profile - to be made particularly narrow, resulting in a particularly aesthetically pleasing drawer with increased storage space.

[0009] Furthermore, at least one laser weld can be positioned particularly deep within the side wall or at least one support profile, allowing the side wall to be adjusted with exceptional flexibility to meet specific requirements. Limiting factors for the welding process, such as proximity to the at least one laser or an angle of incidence of laser light on the weld point close to a right angle or normal, can be significantly reduced by the at least one embossing and are easily adaptable via a specific shape or geometry of the at least one embossing.

[0010] In the prior art, the at least one laser must be brought very close to the side wall and / or operated at a high laser power in order to generate the energy input required to melt the material despite reflection. Particularly because of this, the sensitive and expensive optics of the at least one laser become contaminated, and focusing the laser beam is especially complex. In the present invention, the distance and / or laser power of the at least one laser can be optimally adjusted, and the at least one laser can also be protected from contamination.

[0011] The at least one embossing ensures that, in essentially any design configuration, the laser beam of the at least one laser can strike the side wall at a substantially right angle to the weld. The at least one embossing also significantly reduces the reflection of the laser light intended for welding, while effectively inhibiting heating away from the at least one laser weld joint.

[0012] By increasing the energy input at the desired welding point, energy from at least one laser can be saved and damage due to defective laser welds can be prevented.

[0013] Furthermore, the positive effect can be that the side panel is more resilient in the area of ​​at least one laser weld, and higher loads can also be applied to a drawer front or back panel. This can be advantageous, for example, when the tilt adjustment of a panel is mediated via a railing, with applications such as dimension optimization being wide-ranging.

[0014] In general, the at least one embossed pattern can be completely melted away during the laser welding process, although preferably only a partial melting of the at least one embossed pattern is possible. In other words, a border area of ​​embossing can remain around the at least one laser weld, for example, to allow for alignment of the at least one laser with reduced accuracy and / or to eliminate unwanted reflection effects in the border area of ​​the embossing.

[0015] As stated at the outset, protection is also sought for a side panel for a drawer, comprising at least one support profile and at least one hollow profile, wherein the at least one support profile and the at least one hollow profile are formed at least partially from a metallic material and are welded together by means of at least one laser welding joint, wherein the at least one support profile and / or the at least one hollow profile comprises at least one embossing in an area and / or around the area of ​​the at least one laser welding joint to increase the energy absorption of laser light from at least one laser for forming the at least one laser welding joint.

[0016] The at least one imprint can be used, for example, as an indicator for a planned position of the at least one laser weld joint, preferably to be recorded automatically and / or via a camera system.

[0017] A number of embossings and / or positions of at least one embossing can be adjusted depending on parameters of the side wall such as load-bearing capacity, dimensions, etc.

[0018] At least one support profile can be in the form of a container rail, which can generally be used to connect the side wall to a drawer bottom.

[0019] The at least one hollow profile can be in the form of a frame cap, which can generally be used for the at least partial arrangement of at least one holding device for a drawer back panel or a drawer front panel within the at least one hollow profile.

[0020] The side wall is particularly preferably in the form of a drawer side wall, container side wall, or the like. Preferably, a drawer comprises a drawer front wall, a drawer back wall, a drawer bottom, and two such side walls, wherein retaining devices are provided for attaching the drawer front wall and / or the drawer back wall to the side walls.

[0021] Preferably, in a preparatory process step, the at least one support profile and / or the at least one hollow profile is provided, preferably by rolling and / or bending.

[0022] As stated at the outset, protection is also sought for a support profile for such a side wall, wherein the support profile is formed at least partially from a metallic material, characterized in that the support profile, in particular on an inner side facing an interior of the support profile and / or on at least one lateral web pointing vertically in the service state of the support profile, comprises at least one embossing to increase the energy absorption of laser light from at least one laser for forming at least one laser weld joint with at least one hollow profile.

[0023] For example, embossing can be arranged along the lateral web and / or on the lateral web on the inside and / or on both lateral webs of the support profile and / or the hollow profile, preferably aligned parallel to each other.

[0024] As stated at the outset, protection is also sought for an arrangement comprising at least one laser and at least one such side wall, wherein the at least one laser for introducing the at least one laser weld joint, particularly in such a method, is aligned with a laser emission aperture at an acute angle, preferably 15° to 30°, particularly preferably 20° to 25°, to a direction vertical in the operating state of the at least one side wall, so that laser light can be emitted, in particular directly, substantially at a right angle onto a flank of the at least one embossing.

[0025] This ensures the positive property that at least one laser does not need to be maneuvered closer to the side wall, and that no material-specific characteristics deviating from conventional materials used in the furniture industry are required to increase energy input at the welding point.

[0026] Especially with narrow side walls or support profiles, a connection via rivets is not possible, in which case, for example, a disc laser can be used to weld the support profile.

[0027] The distance between the laser and the side wall during welding is preferably in the range between 5 cm and 50 cm, particularly preferably between 10 cm and 40 cm, and more preferably between 15 cm and 25 cm.

[0028] Advantageous embodiments of the invention are defined in the dependent claims.

[0029] It is particularly preferred that, prior to welding, at least one embossing is arranged in an area and / or around the area of ​​the at least one laser weld joint on the at least one support profile and / or the at least one hollow profile to increase the energy absorption of laser light.

[0030] Since at least one of the markings constitutes a structural element of the side wall, no changes can be made to the laser itself, such as focus width, intensity, pulse duration, irradiation time, or similar parameters. Application with a wide variety of lasers with varying dimensions and properties is possible.

[0031] According to an advantageous embodiment of the invention, it is provided that the at least one embossing is arranged on an inner side facing an interior of the at least one support profile, preferably on at least one lateral web of the at least one support profile which points in a vertical direction in the operating state of the side wall.

[0032] For laser welds that face outwards, accessibility to at least one laser is less problematic, although even here, particularly advantageous integration into a production cycle can be ensured. The problem of accessibility to at least one laser can also be overcome without complex structures (such as mirrors or split profiles) by using at least one embossing on the interior.

[0033] It is provided that at least one embossing is introduced into the at least one support profile and / or the at least one hollow profile in such a way that the at least one embossing is in the form of a ribbing.

[0034] Advantageously, it is provided that at least two, preferably exactly three, embossings are provided and / or that the at least one embossing is introduced into the at least one support profile and / or the at least one hollow profile in such a way that the at least one embossing in the form of a wave-shaped corrugation and / or in the form of corrugation with at least two, particularly preferably at least five, further particularly preferably ten, protrusions, and / or has a substantially rectangular cross-section and / or is locally arranged and / or is arranged along a longitudinal direction of the side wall in the region of a free end, preferably at a distance of at least five times the material thickness of the at least one support profile,and / or is centrally arranged and / or is orthogonal to the longitudinal direction from a free end at a distance of at least ten times the material thickness of the support profile and / or is arranged in the first third along a lateral web of the at least one support profile, starting from a top surface of the at least one support profile arranged in the service state of the side wall, and / or is arranged on a lateral web of the at least one support profile and / or the at least one hollow profile in the service state of the side wall, and / or is at least one-fifth and / or at most one-half of the material thickness of the at least one support profile deep, and / or forms a contact area, preferably substantially planar, for the at least one hollow profile and / or the at least one support profile on a side of the material facing away from the at least one embossing.

[0035] The characteristics of at least one embossing, such as depth, geometry, shape, and / or positioning on the side wall, can be individually adapted to the conditions and / or requirements of the side wall. Material thickness can be defined, for example, by a mean or maximum thickness when material thicknesses vary. Free ends generally exist for both the at least one supporting profile and the at least one hollow profile in the vertical direction (for example, as the maximum distance along this degree of freedom) and in the longitudinal direction.

[0036] It has proven advantageous that the elevations each have two flanks, preferably tapering towards each other. which enclose an angle in the range between 70° and 110°, preferably substantially a right angle, to each other and / or wherein one of the two flanks is oriented relative to the at least one support profile and / or the at least one hollow profile such that a normal to the flank leads away from the side wall without contact between two lateral webs of the at least one support profile and / or the at least one hollow profile and / or wherein the two flanks have a flank height in the range between 0.05 mm and 0.2 mm, preferably between 0.1 mm and 0.15 mm, and / or at least one of the two flanks has a flank length between 0.1 mm and 0.25 mm, preferably between 0.15 mm and 0.2 mm, and / or wherein the projections have a flank angle between 15° and 40°, preferably between 25° and 30°,relative to a lateral web of the at least one support profile and / or the at least one hollow profile, and / or two adjacent protrusions are spaced apart from each other by between 0.2 mm and 0.5 mm, preferably between 0.3 mm and 0.4 mm.

[0037] Properties of at least one embossing, such as geometry and / or orientation of the flanks, can be determined by the laser light of at least one laser and / or dimensions of components of the side wall, in order to make a manufacturing process of the side wall particularly efficient.

[0038] According to an advantageous embodiment of the invention, it is provided that the at least one laser welding joint is made in the form of a spot or line laser welding joint.

[0039] Particularly preferred are spot welds which extend at least partially within a lateral dimension of the at least one embossing.

[0040] It has proven advantageous that at least one coating, preferably a plastic coating, is applied to the at least one support profile and / or the at least one hollow profile, preferably in the area of ​​the at least one embossing, which is removed before or during welding, preferably with the at least one laser and / or in certain areas.

[0041] The at least one coating may, for example, be intended for a specific visual appearance of the side wall, wherein the at least one coating may be undesirable for the at least one laser weld joint, and / or - for example, through composition and / or coloring - increase absorption of laser light at least temporarily at the beginning of the welding process.

[0042] Evaporation or removal of at least one coating prior to welding with at least one laser can reduce or eliminate a quantity of substances detrimental to welding, such as organic substrate and / or pollutants.

[0043] An advantageous embodiment consists in the fact that the at least one laser for creating the at least one laser weld joint is oriented with a laser emission aperture at an acute angle, preferably 15° to 30°, particularly preferably 20° to 25°, towards a direction vertical in the operating state of the side wall, wherein it is preferably provided that laser light is emitted substantially at a right angle onto one of the two optionally existing flanks of the at least one embossing.

[0044] It is particularly preferred that at least one holding device, formed at least partially from a metallic material, is provided for connecting the side wall to a drawer back wall or a drawer front wall, wherein the at least one holding device is welded to the at least one support profile by means of at least one laser weld seam and in the area of ​​the at least one laser weld seam, a laser deformation separate from the at least one laser weld seam is caused by irradiation with laser light.

[0045] This allows for an additional laser treatment to be carried out in the welding area, both to make the side wall more stable and to counteract the tearing off of at least one holding device.

[0046] In other words, during the welding operation for attaching the at least one holding device, heat is additionally introduced into the at least one support profile using at least one laser. This causes the at least one support profile to deform slightly and bend upwards. Thus, stresses are deliberately created in the at least one support profile, resulting in a preferential deformation.

[0047] With certain material qualities, structural changes and thus a hardening process can also occur.

[0048] The additional laser treatment makes at least one support profile more resilient, thus allowing for higher loads on the drawer back or front panel connected to the at least one holding device. This is advantageous, for example, when the tilt adjustment of the drawer front panel is achieved via the railing bar.

[0049] In a preferred embodiment of the invention, it is provided that the at least one laser weld is arranged predominantly at locations on the at least one support profile where the at least one holding device and the at least one support profile make contact, and / or the at least one laser deformation is arranged predominantly at locations on the at least one support profile where the at least one holding device and the at least one support profile do not make contact, and / or the at least one laser deformation is arranged offset from the at least one laser weld on the at least one support profile, and / or the at least one laser deformation and the at least one laser weld are arranged relative to each other in such a way that the laser deformation and the at least one laser weld have at least one point of intersection.and / or that the at least one laser deformation extends in a direction transverse to a longitudinal direction of the side wall over a greater width than the at least one laser weld, and / or that the at least one laser deformation is formed at least sectionally in a linear zigzag pattern, and / or that the at least one laser weld and the at least one laser deformation are produced with the same laser, wherein the focus of the laser is adjusted, preferably widened, after the production of the at least one laser weld and before the production of the at least one laser deformation.

[0050] In general, the same laser can be used for at least one laser weld joint and at least one laser weld seam, with the laser sequentially processing the areas of the side wall to be treated. In general, different lasers or a multitude of identical lasers can also be used, at least partially, for the individual heat treatments – for example, for varying positions along the side wall.

[0051] It is particularly preferred that the at least one laser weld and the at least one laser deformation are formed at least partially in a linear fashion, and wherein the at least one laser weld and the laser deformation have different line widths, preferably wherein the laser deformation has a larger line width than the at least one laser weld.

[0052] Mutatis mutandis, the side wall may have the constructive or structural features of the method claims, wherein features of the device claims of the side wall are applicable in an analogous manner to the method claims.

[0053] Further details and advantages of the present invention are explained in more detail below with reference to the description of the figures and the exemplary embodiments illustrated in the drawings. These show: Fig. 1a, 1b side wall according to a particularly preferred embodiment in two perspective views of varying angles of view of an embossing in a support profile, Fig. 1c, 1d the side wall according to the embodiment according to Fig. 1a with enlarged detail section in the area of ​​the embossing in perspective view, Fig. 2 the support profile of the side wall according to the embodiment according to Fig. 1a isolated from a hollow profile in perspective view, Fig. 3a, 3b the side wall according to the embodiment according to Fig. 1a in a side view with enlarged sectional view and enlarged detail view in the area of ​​the embossing, Fig. 3c, 3d the side wall according to the embodiment according to Fig. 3a during irradiation of the embossing via a laser to form a laser weld joint, as well as an enlarged detail section of the embossing, Fig. 4a-4, your side wall according to a further preferred embodiment in a view from below with three enlarged detail sections in the area of ​​a laser weld seam.

[0054] Fig. 1a shows a side wall 1 for a drawer, comprising a support profile 2 in the form of a container rail for connecting the side wall to a drawer bottom and a hollow profile 3 in the form of a frame cap for arranging retaining devices 4 for a drawer back wall and a drawer front wall within the hollow profile 3 (cf. Fig. 4b-4d ).

[0055] The support profile 2 and the hollow profile 3 were provided containing at least a portion of a metallic material in order to be welded together by means of a laser welding joint 5. To ensure the quality of the laser welding joint 5 (see Fig. 3a-3d To improve the laser welding joint 5, the support profile 2 includes a variety of embossings 6 in and around an area of ​​the laser welding joint 5 to be applied to the side wall 1 to increase the energy absorption of laser light 7 of a laser 8 to form the laser welding joint 5.

[0056] The embossings 6 are arranged on the support profile 2. Alternatively or additionally, embossings 6 can be arranged on the hollow profile 3.

[0057] Fig. 1b differs from Fig. 1a The only difference is that the side wall 1 is viewed from a different perspective, revealing that exactly three embossings 6 are provided. In general, the number of embossings 6 is arbitrary; for example, further embossings 6 may be arranged opposite each other on the support profile 2 (or the hollow profile 3).

[0058] Fig. 1c Figure 1 shows a free end of the support profile 2 in the longitudinal direction 15 of the side wall 1 as well as free ends of the support profile 2 - formed by a top surface 18 arranged in the service state 17 of the side wall and an opposite bottom edge of the support profile 2 - in the vertical direction 11 of the side wall 1.

[0059] Along the longitudinal direction 15 of the side wall 1, embossings 6 are arranged in the area of ​​the free end at intervals of at least five times the material thickness 16 of the support profile 2, as well as centrally on the support profile 2 (hidden in the illustration). Orthogonally to the longitudinal direction 15, the embossings 6 are arranged at intervals of at least ten times the material thickness 16 of the support profile 2 from the lower edge of the lateral web 12 of the support profile 2 formed in the service state 17, and extending in the first third along a lateral web 12 of the support profile 2 from the upper surface 18 of the support profile 2 as arranged in the service state 17 of the side wall 1.

[0060] The support profile 2 has a further lateral web 12 aligned parallel to the lateral web 12. The embossing 2 is located closer to the top surface 18 in the vertical direction 11 than to the bottom edge of the support profile, which is why, due to the structural dimensions of the side wall, a laser weld joint 5 without embossing 6 is complex and difficult to generate.

[0061] The embossings 6 are incorporated into the support profile 2 (possibly also into the hollow profile 3) in such a way that the embossings 6 have a rectangular cross-section with rounded corners, are arranged on a local area of ​​the side wall and are positioned on the lateral web 12 of the support profile 2 in the service state 17 of the side wall 1.

[0062] Fig. 1d Figure 1 shows an enlarged section of the side wall 1 in the area of ​​an embossing 6. The embossings 6 are arranged on an inner side 10 facing an interior space 9 of the support profile 2 – on the lateral web 12 of the support profile 2, which points vertically 11 in the service state 17 of the side wall 1.

[0063] Fig. 2 Figure 1 shows a particularly preferred embodiment of the support profile 2 for the side wall 1, wherein the support profile 2 is made of metal and the embossings 6 are arranged on the inner side 10 facing the interior 9 of the support profile 2 and on the lateral web 12 pointing in the vertical direction 11 in the operating state of the support profile 2, in order to increase the energy absorption of laser light 7 of a laser 8 for the formation of laser weld connections 5 with the hollow profile 3.

[0064] The support profile 2 has a cross web 28 which is orthogonally aligned to both lateral webs 12 of the support profile 2 and, in a state mounted on the hollow profile 3, to both lateral webs 12 of the hollow profile 3.

[0065] Fig. 3a shows a side view of the side wall 1 with a cross-sectional view through the side wall and an enlarged detail view in the area of ​​an embossing 6 or laser weld joint 5.

[0066] The laser weld joint 5 is shown schematically, with the embossing 6 shown fully preserved in cross-section for illustrative purposes - this is generally not provided in the area of ​​the laser weld joint 5 due to a melting process of material.

[0067] The laser weld 5, as a material-bonded connection, can be combined with other fastening connections between the support profile 2 and the hollow profile 3. For example, screw, nail, clamp, positive locking connections or the like can be used.

[0068] The side wall 1 is oriented in operating position 17 for connection to other component parts of a drawer.

[0069] Fig. 3b differs from Fig. 3a The only difference is that the side wall 1 has been rotated by 180°. Such an orientation can be used for mounting the side wall 1, whereby the laser weld 5 is generated by emitting laser light 7 from above onto the embossing 6 positioned in the interior 9 and between the two lateral webs 12. However, the orientation of the side wall 1 during a manufacturing process is generally arbitrary.

[0070] The embossing 6 is between one fifth and one half of the material thickness 16 of the carrier profile 2 deep.

[0071] The embossing 6 is in the form of a wavy ribbing 13, the ribbing 13 having a large number of elevations 14.

[0072] On one side of the material of the carrier profile 2 facing away from the embossing 6, a contact area 20 is formed by the embossing 6, which can be used for linear or planar contact between the lateral web 12 of the carrier profile 2 and a lateral web of the hollow profile 3 for the defined contact point for the laser welding connection 5.

[0073] The laser weld 5 can, for example, be in the form of a spot or line laser weld.

[0074] Fig. 3c Figure 1 shows an arrangement consisting of a laser 8 and the side wall 1, wherein the laser 8 (the number is generally arbitrary) is oriented with a laser emission aperture 23 at an acute angle between 20° and 25° to the vertical direction 11 for the purpose of introducing the laser welding joint 5, such that the laser light 7 of the laser 8 is directed at right angles onto flanks 21 (see Figure 1). Fig. 3d ) of the coinage 6 is emittable.

[0075] A method for manufacturing the side wall 1 can be exemplified as follows: The metallic support profile 2 and the metallic hollow profile 3 are provided, wherein the embossings 6 are arranged on the support profile 2 in and around the area of ​​the laser welding joint 5 to increase the energy absorption of laser light 7 before a welding process, so that the support profile 2 and the hollow profile 3 are subsequently welded together by means of laser welding joints 5 via the embossings 6, wherein at least the support profile 2 has embossings 6 before welding and the embossings 6 are melted at least partially during the welding process.

[0076] On the support profile 2 or the hollow profile 3, a coating 22 in the form of a plastic coating can be applied in the area of ​​the embossings 6, which is removed at least partially before or during welding with the laser 8.

[0077] The laser 8 was already oriented at an acute angle to the inner sides 10 of the carrier profile 2 with the laser emission aperture 23 for the purpose of introducing the laser welding connection 5, whereby laser light 7 is emitted at a right angle onto one of the two flanks 21 of the embossing 6 formed by the embossing 6 to melt metallic material.

[0078] Fig. 3d Figure 6 shows an enlarged representation of an embossing 6 for a laser weld 5, revealing that the raised areas 14 of the ribbing 13 each have two converging flanks 21. The manufacturing-related radius in the transition area of ​​the flanks 21 is generally arbitrary.

[0079] The flanks 21 of the ribbing 13 form a right angle with each other, while the projections 14 of the embossing 6 have a flank angle 31 of 28° relative to the lateral web 12 of the support profile 2. The projections 14 are inclined with its flanks 21, with two adjacent projections 14 being spaced 0.36 mm apart.

[0080] The two flanks 21 form a flank height 29 of 0.125 mm. The two flanks 21 of a protrusion 14 have different flank lengths 30, with one flank 21 having a flank length 30 of 0.17 mm.

[0081] As in Fig. 3c As can be seen, one of the two flanks 21 is oriented relative to the lateral webs 12 of the support profile 2 in such a way that a normal to this flank 21 leads away from the side wall 1 without contact between the two lateral webs 12 of the support profile 2, in order to be able to achieve a laser welding connection 5 via the embossing 6 with reduced reflection.

[0082] In an analogous constructive design, embossings 6 can be provided on the hollow profile 3.

[0083] Fig. 4a Figure 1 shows the support profile 2 of the side wall 1 from a bottom side towards the top side 18 as a plate-shaped component of the support profile 2. A dashed area of ​​a free end of the support profile 2 is shown in Fig. 4b bis 4d shown in various embodiments for connecting or increasing the stability of a holding device 4.

[0084] Fig. 4b Figure 1 shows that the holding device 4 for connecting the side wall 1 to a drawer back panel or a drawer front panel made of metallic material was provided and arranged on the support profile 2. The holding device 4 is welded to the support profile 2 by means of a laser weld 24.

[0085] Fig. 4c shows that the connection between support profile 2 and holding device 4 in the area of ​​the laser weld 24 has a laser deformation 25 that is separate from the laser weld 24 and caused by laser light 7.

[0086] The laser deformation 25 is arranged predominantly at points on the support profile 2 where the holding device 4 and the support profile 2 are designed without contact with each other.

[0087] The laser weld 24 and the laser deformation 25 are linear, with the laser weld 24 and the laser deformation 25 exhibiting different line widths (during the emission of laser light 7 and after completion of the welding process). The laser deformation 25 has a larger line width than the laser weld 24.

[0088] The laser deformation 25 extends in a direction transverse to a longitudinal direction 15 of the side wall 1 over a greater width than the laser weld seam 24.

[0089] The laser deformation 25 is linear and is designed in the form of a zigzag 27.

[0090] The laser deformation 25 and the laser weld 24 have a common intersection point 26.

[0091] Fig 4dFigure 25 shows that a further laser deformation is provided, which is arranged offset from the laser weld seam 24 on the support profile 2. The laser deformation 25 enables a hardening process during irradiation with laser light 7 and an increase in strength.

[0092] In the manufacturing process of the side wall 1, the metallically provided holding device 4 can be welded to the support profile 2 by means of a laser weld 24 or a plurality of spatially separate or interconnected laser welds 24, wherein in the area of ​​the laser weld 24, a laser deformation 25 separate from the laser weld 24 is caused by irradiation with laser light 7.

[0093] The laser weld 24, the laser deformations 25, and the laser weld joint 5 were produced with the same laser 8, although this is generally not strictly necessary. For example, only the laser weld 24 and the laser deformation 25 can be generated with one laser 8. In this embodiment, the focus of the laser 8 is adjusted by widening the focus after the laser weld 24 is generated and before the laser deformation 25 is generated.

Claims

1. A method for producing a side wall (1) for a drawer, comprising at least one support profile (2) consisting at least in portions of a metallic material and at least one hollow profile (3) consisting at least in portions of a metallic material, wherein the at least one support profile (2) and the at least one hollow profile (3) are welded to one another by means of at least one laser welded connection (5), characterized in that the at least one support profile (2) and / or the at least one hollow profile (3) has / have at least one embossing (6) prior to welding to increase an energy absorption of laser light (7) of at least one laser (8) to form the at least one laser welded connection (5) in a region and / or around the region of the at least one laser welded connection (5), and the at least one embossing (6) is melted at least in regions during the welding, wherein the at least one embossing (6) is introduced into the at least one support profile (2) and / or the at least one hollow profile (3) in such a way that the at least one embossing (6) is present in the form of a corrugation.

2. The method according to claim 1, wherein - prior to welding, the at least one embossing (6) is arranged for increasing the energy absorption of laser light (7) in a region and / or around the region of the at least one laser welded connection (5) on the at least one support profile (2) and / or the at least one hollow profile (3), and / or - the at least one embossing (6) is arranged on an inner side (10) facing an interior space (9) of the at least one support profile (2), preferably on at least one lateral web (12) of the at least one support profile (2) pointing in the vertical direction (11) in the state of use of the side wall (1).

3. The method according to any one of the preceding claims, wherein at least two, preferably exactly three, embossings (6) are provided, wherein that the at least one embossing (6) - is present in the form of a wave-shaped corrugation (13), and / or in the form of a corrugation (13) with at least two, particularly preferably at least five, more particularly preferably ten, elevations (14), and / or - has a substantially rectangular cross-section and / or is arranged locally and / or - is arranged along a longitudinal direction (15) of the side wall (1) in the region of a free end, preferably at a distance of at least five times a material thickness (16) of the at least one support profile (2), and / or is centrally arranged and / or - is arranged orthogonal to the longitudinal direction (15) from a free end at a distance of at least ten times the material thickness (16) of the support profile (2) and / or starting from an upper side (18) of the at least one support profile (2) arranged in the use state (17) of the side wall (1) in the first third along a lateral web (12) of the at least one support profile (2) and / or - is arranged, in the use state (17) of the side wall (1), on a lateral web (12) of the at least one support profile (2) and / or the at least one hollow profile (3) and / or - has a depth of at least one fifth and / or a maximum of one half of the material thickness (16) of the at least one support profile (2) and / or - forms, on a side of the material facing away from the at least one embossing (6), a preferably substantially flat contact region (20) for the at least one hollow profile (3) and / or the at least one support profile (2).

4. The method according to claim 3, wherein the elevations (14) each have two flanks (21), preferably tapering pointedly towards one another, - which enclose an angle in the range between 70° and 110°, preferably substantially a right angle, to each other and / or - wherein one of the two flanks (21) is oriented relative to the at least one support profile (2) and / or the at least one hollow profile (3) in such a way that a normal to the flank (21) points away from the side wall (1) without contact between two lateral webs (12) of the at least one support profile (2) and / or the at least one hollow profile (3) and / or - wherein the two flanks (21) have a flank height (29) in the range between 0.05 mm and 0.2 mm, preferably between 0.1 mm and 0.15 mm, and / or at least one of the two flanks (21) has a flank length (30) between 0.1 mm and 0.25 mm, preferably between 0.15 mm and 0.2 mm, and / or - wherein the elevations (14) have a flank angle (31) of between 15° and 40°, preferably between 25° and 30°, relative to a lateral web (12) of the at least one support profile (2) and / or the at least one hollow profile (3) and / or two adjacent elevations (14) are spaced apart from one another by between 0.2 mm and 0.5 mm, preferably between 0.3 mm and 0.4 mm.

5. The method according to any one of the preceding claims, wherein - the at least one laser welded connection (5) is introduced in the form of a point-like or linear laser weld seam, and / or - at least one coating (22), preferably a plastic coating, is applied to the at least one support profile (2) and / or the at least one hollow profile (3), preferably in the region of the at least one embossing (6), which coating is removed before or during the welding, preferably with the at least one laser (8) and / or in regions.

6. The method according to any one of the preceding claims, wherein the at least one laser (8) for introducing the at least one laser welded connection (5) is oriented with a laser emission opening (23) at an acute angle, preferably 15° to 30°, particularly preferably 20° to 25°, to a direction (11) which is vertical in the state of use (17) of the side wall (1), wherein it is preferably provided that laser light (7) is emitted substantially at right angles onto one of the two optional flanks (21) of the at least one embossing (6).

7. The method according to any one of the preceding claims, wherein at least one mounting device (4) formed at least in portions from a metallic material is provided for connecting the side wall (1) to a drawer rear wall or a drawer front wall, wherein the at least one mounting device (4) is welded to the at least one support profile (2) by means of at least one laser weld seam (24) and a laser deformation (25) separate from the at least one laser weld seam (24) is produced in the region of the at least one laser weld seam (24) by irradiation with laser light (7).

8. The method according to claim 7, wherein - the at least one laser weld seam (24) is arranged predominantly at locations on the at least one support profile (2) at which the at least one mounting device (4) and the at least one support profile (2) are in contact, and / or - the at least one laser deformation (25) is arranged predominantly at locations on the at least one support profile (2) at which the at least one mounting device (4) and the at least one support profile (2) are not in contact, and / or - the at least one laser deformation (25) is arranged offset to the at least one laser weld seam (24) on the at least one support profile (2), and / or - the at least one laser deformation (25) and the at least one laser weld seam (24) are arranged relative to one another in such a way that the laser deformation (25) and the at least one laser weld seam (24) have at least one intersection point (26), and / or that the at least one laser deformation (25) extends in a direction transverse to a longitudinal direction (15) of the side wall (1) over a greater width than the at least one laser weld seam (24), and / or - the at least one laser deformation (25) is formed at least in portions linearly in the form of a zigzag (27), and / or - the at least one laser weld seam (24) and the at least one laser deformation (25) are produced with the same laser (8), the focus of the laser (8) being adjusted, preferably widened, after the at least one laser weld seam (24) has been produced and before the at least one laser deformation (25) has been produced.

9. A side wall (1) for a drawer, comprising at least one support profile (2) and at least one hollow profile (3), wherein the at least one support profile (2) and the at least one hollow profile (3) are formed at least in portions from a metallic material and are welded together by means of at least one laser welded connection (5), characterized in that the at least one support profile (2) and / or the at least one hollow profile (3) comprises / comprise, in a region and / or around the region of the at least one laser welded connection (5), at least one embossing (6) for increasing an energy absorption of laser light (7) of at least one laser (8) for forming the at least one laser welded connection (5), wherein the at least one embossing (6) is introduced into the at least one support profile (2) and / or the at least one hollow profile (3) in such a way that the at least one embossing (6) is present in the form of a corrugation.

10. The side wall (1) according to claim 9, wherein the at least one embossing (6) is arranged on an inner side (10) facing an interior space (9) of the at least one support profile (2), preferably on at least one lateral web (12) of the at least one support profile (2) pointing in the vertical direction (11) in the state of use (17) of the side wall (1).

11. The side wall (1) according to claim 9 or 10, wherein at least two, preferably exactly three, embossings (6) are provided in such a way that the at least one embossing (6) - is present in the form of a wave-shaped corrugation (13), and / or in the form of a corrugation (13) with at least two, particularly preferably at least five, more particularly preferably ten, elevations (14), and / or - has a substantially rectangular cross-section and / or is arranged locally and / or - is arranged along a longitudinal direction (15) of the side wall (1) in the region of a free end, preferably at a distance of at least five times a material thickness (16) of the at least one support profile (2), and / or is centrally arranged and / or - is arranged orthogonal to the longitudinal direction (15) from a free end at a distance of at least ten times the material thickness (16) of the support profile (2) and / or starting from an upper side (18) of the at least one support profile (2) arranged in the use state (17) of the side wall (1) in the first third along a lateral web (12) of the at least one support profile (2) and / or - is arranged, in the use state (17) of the side wall (1), on a lateral web (12) of the at least one support profile (2) and / or the at least one hollow profile (3) and / or - has a depth of at least one fifth and / or a maximum of one half of the material thickness (16) of the at least one support profile (2) and / or - forms, on a side of the material facing away from the at least one embossing (6), a preferably substantially flat contact region (20) for the at least one hollow profile (3) and / or the at least one support profile (2), wherein it is preferably provided that the elevations (14) each have two flanks (21), preferably tapering pointedly towards one another, - which enclose an angle in the range between 70° and 110°, preferably substantially a right angle, to each other and / or - wherein one of the two flanks (21) is oriented relative to the at least one support profile (2) and / or the at least one hollow profile (3) in such a way that a normal to the flank (21) points away from the side wall (1) without contact between two lateral webs (12) of the at least one support profile (2) and / or the at least one hollow profile (3) and / or - wherein the two flanks (21) have a flank height (29) in the range between 0.05 mm and 0.2 mm, preferably between 0.1 mm and 0.15 mm, and / or at least one of the two flanks (21) has a flank length (30) between 0.1 mm and 0.25 mm, preferably between 0.15 mm and 0.2 mm, and / or - wherein the elevations (14) have a flank angle (31) of between 15° and 40°, preferably between 25° and 30°, relative to a lateral web (12) of the at least one support profile (2) and / or the at least one hollow profile (3) and / or two adjacent elevations (14) are spaced apart from one another by between 0.2 mm and 0.5 mm, preferably between 0.3 mm and 0.4 mm.

12. The side wall (1) according to any one of claims 9 to 11, wherein - the at least one laser welded connection (5) is in the form of a point-like or linear laser weld seam, and / or - the at least one support profile (2) and / or the at least one hollow profile (3), comprises at least one coating (22), preferably a plastic coating preferably around a region of the at least one embossing (6).

13. The side wall (1) according to any one of claims 9 to 12, with at least one mounting device (4) for connecting the side wall (1) to a drawer rear wall or drawer front wall, wherein the at least one mounting device (4) is formed at least in portions from a metallic material and is welded to the at least one support profile (2) by means of at least one laser weld seam (24) and has a laser deformation (25) separate from the at least one laser weld seam (24) produced in the region of the at least one laser weld seam (24) by laser light (7), wherein it is preferably provided that - the at least one laser deformation (25) is arranged predominantly at locations on the at least one support profile (2) at which the at least one mounting device (4) and the at least one support profile (2) are not in contact to each other, and / or - the at least one laser deformation (25) is arranged offset to the at least one laser weld seam (24) on the at least one support profile (2), and / or - the at least one laser deformation (25) and the at least one laser weld seam (24) have at least one intersection point (26), and / or - the at least one laser deformation (25) extends in a direction transverse to a longitudinal direction (15) of the side wall (1) over a greater width than the at least one laser weld seam (24), - the at least one laser deformation (25) is at least partially linear and / or has a zigzag (27), and / or - the at least one laser weld seam (24) and the at least one laser deformation (25) are formed linearly at least in portions, and wherein the at least one laser weld seam (24) and the laser deformation (25) have a different line width, preferably wherein the laser deformation (25) has a greater line width than the at least one laser weld seam (24).

14. A support profile (2) for a side wall (1) according to any one of claims 9 to 13, wherein the support profile (2) is formed at least in portions from a metallic material, characterized in that the support profile (2), in particular on an inner side (10) facing an interior (9) of the support profile (2) and / or on at least one lateral web (12) pointing in the vertical direction (11) in the state of use of the carrier profile (2), comprises at least one embossing (6) for increasing the energy absorption of laser light (7) of at least one laser (8) for forming at least one laser welded connection (5) with at least one hollow profile (3), wherein the at least one embossing (6) is introduced into the at least one support profile (2) and / or the at least one hollow profile (3) in such a way that the at least one embossing (6) is present in the form of a corrugation.

15. An arrangement of at least one laser (8) and at least one side wall (1) according to any one of claims 9 to 13, wherein the at least one laser (8) for introducing the at least one laser welded connection (5), in particular in a method according to any one of claims 1 to 8, is aligned with a laser emission opening (23) at an acute angle, preferably 15° to 30°, particularly preferably 20° to 25°, to a direction (11) that is vertical in the use state (17) of the at least one side wall (1), so that laser light (7) can be emitted, in particular directly, essentially at a right angle onto a flank (21) of the at least one embossing (6).