EP3411165B1 - Procédé de traitement et/ou de fabrication d'un élément, et cet élément - Google Patents

Procédé de traitement et/ou de fabrication d'un élément, et cet élément Download PDF

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Publication number
EP3411165B1
EP3411165B1 EP17702084.9A EP17702084A EP3411165B1 EP 3411165 B1 EP3411165 B1 EP 3411165B1 EP 17702084 A EP17702084 A EP 17702084A EP 3411165 B1 EP3411165 B1 EP 3411165B1
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EP
European Patent Office
Prior art keywords
surface coating
component
semi
notching
finished product
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EP17702084.9A
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German (de)
English (en)
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EP3411165A1 (fr
Inventor
Bernhard Glück
Robert Kirschner
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Publication of EP3411165A1 publication Critical patent/EP3411165A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/001—Shaping combined with punching, e.g. stamping and perforating

Definitions

  • the present invention relates to a method for processing and/or producing a component, which is used in particular when processing and/or producing a metal sheet metal component or sandwich component or a corresponding semi-finished product.
  • JP 2009-234016 A describes a method of making a nozzle plate for ink jet printing.
  • a substrate is provided, on the surface of which there is an oxide film.
  • the substrate is punched at a suitable point using a punch and the remaining substrate layer is then severed from the still unprocessed, opposite side.
  • the object is achieved by a method for processing and/or producing a component in that first a component or a semi-finished product is provided which has a base body with a first surface and a first surface coating provided on the first surface, the component or semi-finished product the first surface coated with the first surface coating is then notched, and the component or semi-finished product is then severed, punched or trimmed along the notch.
  • the notching is carried out in such a way that at least a part of the first surface coating that is notched in the process is retained along the notched surfaces created during the notching process.
  • the method according to the invention can be applied to all conceivable components/semi-finished products.
  • the method is particularly suitable for processing or producing metal sheet metal components, since the formation of burrs and flakes can also be reduced or prevented by the method according to the invention.
  • the component to be used can also have a single-layer or multi-layer structure and be present, for example, in the form of a laminate.
  • the method according to the invention can also be used in particular for sandwich components that comprise layers of plastic and, for example, steel.
  • a surface coating within the meaning of the invention is generally understood to mean a functional coating that is applied to the surface of the base body of the component/semi-finished product for aesthetic reasons, for functionalization of the component/semi-finished product, for reasons of protection or stability and in particular for reasons of chemical or mechanical stability.
  • Semi-finished product is applied.
  • the first surface coating can be constructed in one or more layers, bonded to the surface of the base body or resting loosely on it. Furthermore, the first surface coating does not have to completely cover the first surface of the base body, but can be arranged on selected sections or in predefined areas.
  • the notching is carried out at such a point on the first surface of the component or semi-finished product where the first surface coating is present. Notching creates so-called notch surfaces, i.e. the surfaces that are formed by notching in the direction of the notch. According to the invention, these notched surfaces comprise at least part of the notched first surface coating, which increases the functionality of the resulting component and its stability with respect to environmental influences and chemical or mechanical influences. This is the case in particular when the notched surfaces are covered by the first surface coating to at least 40%, in particular at least 70%, as a result of the notching.
  • the notch surfaces are preferably covered up to 100% with the first surface coating.
  • the functionality introduced by the first surface coating is retained in the resulting component even after it has been severed, punched or trimmed, namely at least on the indented surfaces, the notched surfaces. Rather, by introducing the first surface coating into the resulting notch, depending on the surface coating used, additional functionalities can be introduced into the notch and thus also into the component obtained after punching, cutting through or trimming in one work step.
  • the method can be implemented easily without great technical effort and enables the cost-effective processing or production of highly functional and highly stable components or semi-finished products with high frequency.
  • post-processing for subsequent functionalization or sealing of the cut areas can be dispensed with, which means that additional material costs and workload can be saved.
  • the component or the semi-finished product is severed, punched or trimmed using a mechanical cutting method.
  • the component or the semi-finished product has a second surface coating on a second surface opposite the first surface.
  • a further advantageous development of the method according to the invention is characterized in that the component or semi-finished product is notched both on the first surface coated with the first surface coating and on the second surface coated with the second surface coating.
  • a type of layered structure is formed by the first surface coating, the base body of the component/semi-finished product and the second surface coating, in which the base body of the component/semi-finished product is arranged between the two surface coatings.
  • the first and the second surface coating can be of the same design or differ in type, shape, design and/or functionality.
  • the first or second surface coating can be applied along a particularly large area of the notched surfaces and thus also in the immediate vicinity of the resulting cut area or hole area, i.e. on hole edges, hole edges, Reveals, cut edges, cut surfaces and the like are provided.
  • the functionalization of the resulting component is thus maximized.
  • the scoring on the first surface coated with the first surface coating can be performed with a desired scoring depth. If the notch is only from the side of the first surface coating, the notch depth can be up to 90% of the thickness of the base body, but in particular at least up to 80% of the thickness of the base body.
  • the thickness of the base body is determined in the intended notching direction, ie the direction in which the notching process is to be carried out or was carried out.
  • the notching on the first surface coated with the first surface coating and/or on the second surface coated with the second surface coating is to a depth of less than half the thickness of the base body of the component/semi-finished product, in particular to a depth of 10 to 40% of the thickness of the base body.
  • the thickness of the base body is determined in the intended notching direction, ie the direction in which the notching process is to be carried out.
  • a notch on both sides with one each On the other hand, a depth of 50% of the thickness of the base body has turned out to be rather disadvantageous, since the notched noses of the notches formed opposite one another abut.
  • the notching is advantageously carried out symmetrically in the direction of the notch, for example cylindrically, conically or in a V-shape. In other words, this means that the shape of the notch is formed symmetrically.
  • the notching is advantageously carried out by means of embossing, roller embossing, rolling or knurling.
  • the methods mentioned here are particularly well suited to designing the notching in such a way that the first and/or second surface coating is formed or found again on the corresponding notching surfaces.
  • the notching is performed symmetrically on the first surface coated with the first surface coating and on the second surface coated with the second surface coating.
  • symmetrical means with the same notch shape and also with the same notch depth.
  • the surface coating is not restricted in detail.
  • the surface coating(s) is/are advantageously selected from at least one zinc layer, at least one zinc-aluminum layer, at least one adhesive layer and/or at least one polymeric layer.
  • KTL cathodic dip paint
  • paints e.g. for using the process on components/semi-finished products (white goods) that have already been coated.
  • layers of zinc are advantageous for improving the corrosion resistance of the component or semi-finished product. Due to the method according to the invention, this corrosion protection then extends to the notched surfaces and, due to the long-distance effect of the zinc, also to the cut surfaces, cut edges, hole edges, soffits and the like - which are significantly smaller compared to the described prior art remain on the resulting functional component after the component or semi-finished product has been severed, punched or trimmed. It has been found here that at least 40%, in particular at least 70%, coverage of the notch surfaces with zinc, due to the long-distance effect of the zinc, is sufficient to ensure high corrosion protection in the resulting component/semi-finished product.
  • Adhesive layers are suitable for adding a further functionality to the notched surfaces and thus also to the cut areas, ie the cut surfaces, cut edges, hole edges, hole edges, reveals and the like. This is particularly advantageous if another component/semi-finished product is to be connected by means of adhesive forces to the areas created during the separating, cutting or perforating process.
  • the method according to the invention saves a complex, additional step of subsequently introducing an adhesive into the notch and cut area.
  • the corresponding surface coating can also comprise at least one polymeric layer. Paint layers, ie protective paints, colored paints, anti-corrosion paints and the like, are mentioned here by way of example.
  • the respective functionality is also extended to the cut areas by the notching in the method according to the invention on the notched surfaces.
  • the resulting component is characterized by high stability and functionality.
  • a thickness of the base body of the component/semi-finished product is advantageously at most 3 mm and in particular 0.5 to 2.5 mm. This can ensure good spreading of the surface coating(s) onto the corresponding indentation(s).
  • a further advantageous layer thickness of the first surface coating and/or the second surface coating on the respective surface of the component/semi-finished product is a maximum of 20 ⁇ m and in particular a maximum of 15 ⁇ m.
  • the layer thickness of the respective surface coating is determined perpendicular to the corresponding surface of the component/semi-finished product and can be determined using micrographs. If the layer thickness of the surface coating(s) is in the specified range, there is sufficient surface coating to cover the indentation and, moreover, there is at most enough surface coating that the cutting process, Punching process or trimming process can be carried out particularly precisely.
  • the notching is carried out in such a way that a layer thickness of the first surface coating along the notched surfaces is at least 20%, in particular at least 30%, of the layer thickness of the first surface coating on the first surface of the component/semi-finished product.
  • the notching is carried out in such a way that a layer thickness of the second surface coating along the notched surfaces is at least 20%, in particular at least 30%, of the layer thickness of the second surface coating on the second surface of the component/semi-finished product.
  • the layer thickness of the respective surface coating along the notched surfaces is determined perpendicular to the corresponding notched surface. In this way it can be ensured particularly well that the functionality introduced by the respective surface coating is also retained to a particularly high degree on the notched surfaces and thus on the cut surfaces, cut edges, hole edges, soffits and the like.
  • the layer thickness of the surface coating from the surface of the component/semi-finished product decreases uniformly or in stages along the direction of the notch, so that maximum functionalization in the resulting component/semi-finished product can be achieved with minimal expenditure on surface coating material.
  • a further advantageous development of the method according to the invention provides that the notching of the component or semi-finished product on the first surface coated with the first surface coating and/or on the second surface coated with the second surface coating takes place in the same process step as the cutting through, perforating or trimming of the Component or semi-finished product is performed along the notch.
  • the notching can already take place in the shaping step by appropriate design of the molding tool.
  • the notch can be pressed in with the drawing tool, for example.
  • a component is also described which is produced according to the method disclosed above.
  • the component is characterized by high functionality and stability.
  • the component is advantageously characterized in that at least part of the first and/or second surface coating is preserved along notched surfaces.
  • the device is designed in such a way that the notching and the severing, piercing or trimming of the component or semi-finished product can be carried out in one work step.
  • a device is provided in the form of a punching tool which is designed in such a way that the notching can be carried out using a hold-down device and a cutting die and the actual punching can be carried out using a punch in a single pressing stroke.
  • figure 1 is a schematic representation of the process flow of a method for processing and / or manufacturing a component according to a first embodiment of the present invention. It should be noted here that the process is basically suitable for the processing or production of semi-finished products as well as components. In the exemplary embodiments illustrated in the figures, however, reference is only made to the production or processing of a component. However, analogous statements also apply to the processing or production of semi-finished products.
  • a component 1 is provided.
  • the component 1 is not restricted in detail and can be a sheet metal component or a sandwich component, for example.
  • the component 1 comprises a base body 2.
  • the base body 2 can be constructed in one or more layers. As in figure 1 shown, the base body 2 is formed by way of example from a layer which is in particular a sheet metal with a thickness D G of up to 3 mm.
  • the base body 2 has a first surface 3 and a second surface 4 opposite the first surface 3 .
  • a first surface coating 5 is provided on the first surface 3 and a second surface coating 6 is provided on the second surface 4 .
  • the surface coatings 5, 6 can be the same or different, that is, they can be the same or different in type and design, they can lie loosely on the respective surface 3, 4, or they can be connected to the corresponding surface 3, 4 with a material bond.
  • Exemplary surface coatings include at least one zinc layer, at least one zinc-aluminum layer, at least one adhesive layer, and/or at least one polymeric layer.
  • the first surface coating 5 and the second surface coating 6 completely cover the corresponding first surface 3 and second surface 4 .
  • the surface coating 5, 6 it is also possible for the surface coating 5, 6 to be provided only in certain partial sections of the respective surface 3, 4, ie where the notching is to be carried out.
  • the first surface coating 5 has a layer thickness on the first surface 3 of the component 1 which is marked with D Ob1 . It is determined perpendicular to the first surface 3 of the component 1 .
  • the second surface coating 6 has a layer thickness on the second surface 4 of the component 1, which is marked with D Ob2 . It is determined perpendicular to the second surface 4 of the component 1 .
  • the layer thickness can be determined using micrographs.
  • the component 1 is notched on the first surface 3 coated with the first surface coating 5, thereby obtaining a notch 8.
  • the notching can be carried out using a suitable tool, in particular using an embossing tool. Embossing tools are very well suited to retaining at least part of the first surface coating 5 that is being scored along the notched surfaces 7 that are being formed during the scoring. In other words, not only does a region of the base body 1 sink during the notching process, but also the first surface coating 5 located thereon. The first surface coating 5 can in particular also be pressed into the notch 8 .
  • the layer thickness of the first surface coating D Ob1 which is determined perpendicularly to the first surface 3 of the component 1 , is compressed as a result of the notching.
  • the result is that a layer thickness of the first surface coating along the notched areas B is smaller than the layer thickness of the surface coating D Ob1 on the first surface 3 of the component 1.
  • the layer thickness of the first surface coating along the notched areas B is determined perpendicular to the corresponding notched areas.
  • the layer thickness of the first surface coating D Ob1 on the first surface 3 of the component 1 is advantageously at most 20 ⁇ m and in particular at most 15 ⁇ m.
  • the notching is carried out in such a way that the layer thickness of the first surface coating along the notched areas B is at least 20% and in particular at least 30% of the layer thickness of the first surface coating on the first surface of the component D Ob1 .
  • This is shown in this example. It is also possible for the layer thickness of the first surface coating to describe a gradient along the notch surfaces B and to decrease in the notch direction K, for example.
  • the notching in notching direction K takes place symmetrically, which is illustrated in the sectional view by the V-shape of notch 8 .
  • the notching depth is as great as possible.
  • the depth of the notch which is determined in the direction of the notch, can be made to a depth of less than half the thickness of the base body D G , but in particular to a depth of 90% of the thickness of the base body 1 D G .
  • the component is severed, punched or trimmed, for example by means of a mechanical cutting tool 10 along the notch 8 and in figure 1 for example in notch direction K.
  • a mechanical cutting tool 10 can be used as the cutting tool 10, for example a rolling cut tool, shearing cut tool, notched cutting tool, punching tool or a fly cutter, which enable the component 1 to be severed, punched or trimmed with the desired shape.
  • a punching tool is used to create a cylindrical recess in component 1.
  • the resulting component 1 has the first surface coating 5 over a large partial area of the punched hole 11 .
  • the surfaces of the base body 9 are exposed only in a small section of the punched hole.
  • first surface coating 5 The function introduced by the first surface coating 5 is thus retained in the resulting component 1 and can even be extended to the cut areas in component 1. Subsequent sealing or costly post-treatment to increase the protective effect of the component 1 or for aesthetic or stability reasons is not necessary.
  • additional functionality can also be introduced into the notch 8 and thus also into the component obtained after the separating process. This would be the case, for example, if the first surface coating 5 were an adhesive coating, for example.
  • the adhesive properties would also be present on the notched surfaces 7 after the separation process.
  • Alternative functional coatings are colored lacquers, protective lacquers and the like. The method can be carried out without great technical effort and enables the cost-effective production of highly functional and highly stable components with high clock rates.
  • FIG. 12 is a schematic illustration showing the process flow of a method for processing and/or manufacturing a component according to a second embodiment of the present invention.
  • the notching on the first surface 3 coated with the first surface coating 5 and on the second surface 4 coated with the second surface coating 6 is made to a depth of less than half the thickness of the base body D G , in particular to a depth of 10 up to 40% of the thickness of the base body D G executed. This prevents the resulting notched lugs from colliding.
  • the scoring on the first surface 3 coated with the first surface coating 5 and on the second surface 4 coated with the second surface coating 6 is performed symmetrically.
  • the notches 8 and 12 have the same shape and notch depth.
  • the first surface coating 5 and the second surface coating 6 are introduced into the notched surfaces 7 of the respective notches 8, 12 and thus functionalize the notched surfaces 7 on the sides of the two surfaces 3, 4 of the component 1. This makes it easier to have the largest possible notched surface area functionalize.
  • the notching causes the layer thickness of the first surface coating D Ob1 , which is perpendicular to the first surface 3 of the component 1 is determined, as well as the layer thickness of the second surface coating D Ob2 , which is determined perpendicular to the second surface 4 of the component 1.
  • a layer thickness of the first surface coating along the notched areas B is smaller than the layer thickness of the first surface coating D Ob1 on the first surface 3 of the component 1.
  • a layer thickness of the second surface coating along the notched areas C is smaller than the layer thickness of the second surface coating D Ob2 on the second surface 4 of the component 1.
  • the layer thicknesses of the first and second surface coating along the notched surfaces B, C are determined perpendicular to the notched surfaces 7.
  • a component 1 with high functionality and chemical and mechanical stability is obtained, which makes post-sealing or post-processing of the cut areas after the cutting process superfluous.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (11)

  1. Procédé d'usinage et/ou de fabrication d'un composant (1), comprenant les étapes suivantes :
    la fourniture d'un composant (1) ou d'un produit semi-fini, qui présente un corps de base (2) avec une première surface (3) et un premier revêtement de surface (5) prévu sur la première surface (3), le composant (1) ou le produit semi-fini présentant un deuxième revêtement de surface (6) sur une deuxième surface (4) opposée à la première surface (3),
    l'entaillage du composant (1) ou du produit semi-fini sur la première surface (3) revêtue du premier revêtement de surface (5) et sur la deuxième surface (4) revêtue du deuxième revêtement de surface (6), au moins une partie du premier revêtement de surface (5) ainsi entaillé étant conservée le long de surfaces d'entaille (7),
    le composant (1) ou le produit semi-fini étant sectionné, perforé ou découpé le long de l'entaille (8), caractérisé en ce que
    l'entaillage est réalisé sur la première surface (3) revêtue du premier revêtement de surface (5) et sur la deuxième surface (4) revêtue du deuxième revêtement de surface (6) jusqu'à une profondeur de 10 à 40 % de l'épaisseur du corps de base DG,
    le premier et le deuxième revêtement de surface (5, 6) comprenant au moins une couche de zinc.
  2. Procédé selon la revendication 1, caractérisé en ce que le sectionnement, la perforation ou la coupe du composant (1) ou du produit semi-fini est réalisé en utilisant un procédé de coupe mécanique.
  3. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'entaillage est effectué de manière symétrique dans la direction de l'entaille.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'entaillage est réalisé par gravure, gravure par roulage, laminage ou moletage.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'entaillage est réalisé symétriquement sur la première surface (3) revêtue du premier revêtement de surface (5) et sur la deuxième surface (4) revêtue du deuxième revêtement de surface (6).
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une épaisseur du corps de base DG est de 3 mm maximum, notamment de 0,5 à 2,5 mm.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une épaisseur de couche du premier revêtement de surface DOb1 et/ou une épaisseur de couche du deuxième revêtement de surface DOb2 est de 20 µm maximum, notamment de 15 µm maximum.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une épaisseur de couche du premier revêtement de surface le long des surfaces d'entaille (B) est d'au moins 20 %, notamment d'au moins 30 % de l'épaisseur de couche du premier revêtement de surface sur la première surface du composant DOb1 ou du produit semi-fini et/ou en ce qu'une épaisseur de couche du deuxième revêtement de surface le long des surfaces d'entaille (C) est d'au moins 20 %, notamment d'au moins 30 % de l'épaisseur de couche du deuxième revêtement de surface sur la deuxième surface du composant DOb2 ou du produit semi-fini.
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'épaisseur de couche du premier revêtement de surface le long des surfaces d'entaille (B) et/ou l'épaisseur de couche du deuxième revêtement de surface le long des surfaces d'entaille (C) décrit un gradient.
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'entaillage du composant (1) ou du produit semi-fini sur la première surface (3) revêtue du premier revêtement de surface (5) et/ou sur la deuxième surface (4) revêtue du deuxième revêtement de surface (6) est réalisé dans la même étape de processus que le sectionnement, la perforation ou la coupe du composant (1) ou du produit semi-fini le long de l'entaille (8).
  11. Composant,
    comprenant un corps de base (2) avec une première surface (3) et un premier revêtement de surface (5) prévu sur la première surface (3),
    le composant (1) présentant un deuxième revêtement de surface (6) sur une deuxième surface (4) opposée à la première surface (3),
    le composant (1) étant entaillé sur la première surface (3) revêtue du premier revêtement de surface (5) et sur la deuxième surface (4) revêtue du deuxième revêtement de surface (6) jusqu'à une profondeur de 10 à 40 % de l'épaisseur du corps de base DG, et au moins une partie du premier revêtement de surface entaillé (5) étant conservée le long de surfaces d'entaille (7), caractérisé en ce que les surfaces d'entaille (C) sont recouvertes au moins à 40 %, notamment au moins à 70 %, par le premier revêtement de surface (5), le premier et le deuxième revêtement de surface (5, 6) comprenant au moins une couche de zinc.
EP17702084.9A 2016-02-01 2017-01-30 Procédé de traitement et/ou de fabrication d'un élément, et cet élément Active EP3411165B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016201433.1A DE102016201433A1 (de) 2016-02-01 2016-02-01 Verfahren zum Bearbeiten und/oder Herstellen eines Bauteils
PCT/EP2017/051872 WO2017133989A1 (fr) 2016-02-01 2017-01-30 Procédé et dispositif de traitement et/ou de fabrication d'un élément, et cet élément

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EP3411165A1 EP3411165A1 (fr) 2018-12-12
EP3411165B1 true EP3411165B1 (fr) 2023-08-23

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US (1) US11247257B2 (fr)
EP (1) EP3411165B1 (fr)
CN (1) CN108290199B (fr)
DE (1) DE102016201433A1 (fr)
WO (1) WO2017133989A1 (fr)

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DE102018212030A1 (de) 2018-07-19 2020-01-23 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Herstellung eines Fahrzeugbauteils mit Fügehilfselement
DE102019125449B4 (de) 2019-09-20 2022-06-02 KSG GmbH Verfahren zum Herstellen einer Anordnung für eine Leiterplatte und Leiterplatte

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CN108290199A (zh) 2018-07-17
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US20180333761A1 (en) 2018-11-22
WO2017133989A1 (fr) 2017-08-10
US11247257B2 (en) 2022-02-15
DE102016201433A1 (de) 2017-08-03

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