EP3411165A1 - Procédé et dispositif de traitement et/ou de fabrication d'un élément, et cet élément - Google Patents

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

Info

Publication number
EP3411165A1
EP3411165A1 EP17702084.9A EP17702084A EP3411165A1 EP 3411165 A1 EP3411165 A1 EP 3411165A1 EP 17702084 A EP17702084 A EP 17702084A EP 3411165 A1 EP3411165 A1 EP 3411165A1
Authority
EP
European Patent Office
Prior art keywords
surface coating
component
semi
coated
layer thickness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17702084.9A
Other languages
German (de)
English (en)
Other versions
EP3411165B1 (fr
Inventor
Bernhard Glück
Robert Kirschner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP3411165A1 publication Critical patent/EP3411165A1/fr
Application granted granted Critical
Publication of EP3411165B1 publication Critical patent/EP3411165B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
  • DE 44 01 830 C1 describes a method in which a sheet metal part is fixed in a holder and then used during the working stroke
  • a disadvantage of these conventional methods is that when using (functionally) surface-coated components, for example of galvanized components, on the cut edges,
  • Post-coating can be at least partially remedied.
  • the object is achieved by a method for processing and / or producing a component in that firstly a component or a semifinished product is provided which has a base body with a first surface and a first surface provided on the first surface
  • the component or semifinished product is then notched at the coated with the first surface coating first surface and then a cutting, punching or trimming of the component or of the semifinished product along the notch is performed.
  • the notching is carried out so that at least a portion of the thereby notching first surface coating is maintained along the notch surfaces formed during the notching process. In other words, this means that the notching process is carried out so that the first on the
  • the inventive method is applicable to all conceivable components / semi-finished products.
  • the method is particularly suitable both for processing or producing metal sheet metal components, since by the
  • the method according to the invention can reduce or prevent a cutting burr formation and tinsel formation.
  • the component to be used can also be constructed in one or more layers and be present for example in the form of a laminate. Furthermore, the method according to the invention is also
  • a surface coating in the sense of the invention is generally understood to mean a functional coating which, for aesthetic reasons, for the functionalization of the component / semifinished product, for reasons of protection or stability and in particular for reasons of chemical or mechanical stability, on the surface of the main body of the component / Semi-finished product is applied.
  • the first surface coating can be constructed in one or more layers, bonded cohesively to the base body surface or loosely resting on it. Further, the first surface coating need not completely cover the first surface of the body, but may be disposed at selected portions or in predefined regions.
  • the scoring is performed at such a location of the first surface of the component or semifinished product on which the first surface coating is present.
  • the notching creates so-called notched surfaces, that is to say the surfaces which are formed by notching in notch direction.
  • these notched surfaces comprise at least part of the notching first surface coating, which increases the functionality of the resulting component and its stability against environmental influences and chemical or mechanical influences. This is especially true when the notched surfaces are covered by the notching at least 40%, in particular at least 70%, with the first surface coating.
  • the notch areas are up to 100% with the first
  • the registered by the first surface coating functionality is retained even after the severing, punching or trimming in the resulting component, namely at least at the notched 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 or cutting in one operation.
  • the process is simple by combining standard processes, can be implemented without high technical complexity and allows the cost-effective processing or production of highly functional and highly stable components or
  • the severing, punching or trimming of the component or of the semifinished product is carried out using a mechanical cutting method.
  • the component or the semi-finished product has a second surface 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 the semifinished product is coated both on the first surface coated with the first surface coating and on the second surface coated with the second surface coating
  • the main body of the component / semi-finished and the second surface coating formed a kind of layer structure, wherein the main body of the component / the semi-finished product between the two
  • Surface coating may be similar or different in nature, shape, design and / or functionality.
  • the notching on the first surface coated with the first surface coating can be carried out with the desired notch depth.
  • a notch depth in particular up to 90% of the thickness of the body, but in particular at least up to 80% of the thickness of the body can be performed.
  • the thickness of the base body is determined in the intended notch direction, ie the direction in which the notching operation is to be carried out or
  • Component / semi-finished in particular to a depth of 10 to 40% of the thickness of the body is executed.
  • the thickness of the body is determined in the intended Kerbraum, ie the direction in which the
  • Notches in notch symmetrical for example cylindrical, conical or V-shaped. In other words, that means the shape of the
  • Notch is formed symmetrically.
  • the notching is advantageously carried out by means of embossing, roll embossing, rolling or knurling.
  • the methods mentioned here are particularly well suited to make the notching so that the first and / or second surface coating forms or is found on the corresponding notched surfaces.
  • Symmetrical means herewith the same notch shape and also with the same notch depth.
  • the surface coating and thus both the first surface coating and the second surface coating, is not limited in detail. Is advantageous or are the
  • Surface coatings 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.
  • Further advantageous coatings are, for example, cathodic dipsticks (KTL) layers and paints, e.g. for the application of the method to already finished coated components / semi-finished products (white goods).
  • KTL cathodic dipsticks
  • paints e.g. for the application of the method to already finished coated components / semi-finished products (white goods).
  • Adhesive layers are suitable for the entry of another
  • the inventive method saves a complex, additional step of the subsequent introduction of an adhesive in the notch and
  • the corresponding surface coating may also comprise at least one polymeric layer.
  • exemplary here are lacquer layers, ie
  • a thickness of the main body of the component / semifinished product is at most 3 mm and in particular 0.5 to 2.5 mm. This allows a good spread of the surface coating (s) on the corresponding (s)
  • a 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 by means of micrographs. Is the layer thickness of the
  • the notching is performed so that a layer thickness of the first
  • the notching is carried out so that a layer thickness of the second surface coating along the notched surfaces amounts to at least 20%, in particular at least 30% of the layer thickness of the second surface coating on the second surface of the component / semifinished product.
  • the layer thickness of the respective surface coating along the notched surfaces is determined perpendicular to the corresponding notch surface. In this way, it can be ensured particularly well that the functionality which is registered by the respective surface coating is also obtained to a particularly high degree on the notched surfaces and thus on the cut surfaces, cut edges, hole edges, reveals and the like.
  • the notching be carried out such that the layer thickness of the first surface coating along the notched surfaces and / or the layer thickness of the second surface coating along the notched surfaces describe a gradient.
  • the layer thickness of the first surface coating along the notched surfaces and / or the layer thickness of the second surface coating along the notched surfaces describe a gradient.
  • a further advantageous development of the method according to the invention provides that the scoring of the component or of the semifinished product on the first surface coated with the first surface coating and / or on the second surface coated with the second surface coating in the same process step as the severing, punching or trimming the Component or semi-finished along the notch is performed. This reduces the number of process steps and simplifies this
  • CFRP Carbon fiber composites
  • the notching can for example already take place in the shaping step, by appropriate design of the Mold.
  • the indentation can be pressed in, for example, in the drawing tool.
  • a component is described, which is produced by the method disclosed above.
  • the component is characterized by high functionality and stability.
  • the component is characterized in that at least a part of the first and / or second surface coating is obtained along notched surfaces.
  • the device is designed such that the scoring and the severing, punching or trimming of the component or of the semifinished product can be carried out in one work step.
  • a device is provided in the form of a punching tool, which is designed so that the notching can be performed by a blank holder and a cutting die and the actual punching by a punch in a single pressing stroke.
  • Figure 1 is a diagram of a process flow of a method for
  • Figure 2 is a schematic of a process flow of a method for
  • FIG. 1 is a schematic diagram illustrating the method sequence of a method for processing and / or producing a component in accordance with FIG First embodiment of the present invention. It should be noted that the method is basically suitable both for the processing or production of semi-finished products as well as components. In the embodiments illustrated in the figures, however, reference is only made to the manufacture or processing of a component. However, analogous versions are also applied to the processing or production of semi-finished products.
  • a component 1 is provided.
  • the component 1 is not limited in detail and may for example be a sheet metal component or a sandwich component.
  • the component 1 comprises a main body 2.
  • the main body 2 may be constructed in one or more layers. As shown in Figure 1, the
  • Base body 2 for example, formed from a layer which is in particular a metal sheet with a thickness DG of up to 3 mm.
  • the main body 2 has a first surface 3 and a second surface 4 opposite the first surface 3. On the first surface 3, a first surface coating 5 is provided and on the second
  • the surface coatings 5, 6 may be the same or different, ie the same or different in type and design, loosely rest on the respective surface 3, 4 or be integrally bonded to the corresponding surface 3, 4.
  • Exemplary surface coatings comprise 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 in the present example case. But it is also possible that the
  • the first surface coating 5 has a layer thickness on the first surface 3 of the component 1, which is marked Dobi. It is determined perpendicular to the first surface 3 of the component 1.
  • Surface coating 6 has a layer thickness on the second surface 4 of the component 1, which is marked Dob2. It is determined perpendicular to the second surface 4 of the component 1. The layer thickness can be determined from micrographs.
  • a scoring of the component 1 takes place on the first surface 3 coated with the first surface coating 5 to obtain a notch 8.
  • the scoring can be carried out by means of a suitable tool, in particular by means of an embossing tool. Embossing tools are very suitable during notching to obtain at least a portion of the thereby notching first surface coating 5 along the forming notched surfaces 7. In other words, it sinks
  • Surface coating 5 can in particular also be pressed into the notch 8.
  • the notching causes the layer thickness of the first surface coating DOM, which is determined perpendicular to the first surface 3 of the component 1, to be compacted.
  • a layer thickness of the first surface coating along the notched surfaces B is smaller than the layer thickness of the surface coating Dobi on the first surface 3 of the component 1.
  • the layer thickness of the first surface coating Dobi on the first surface 3 of the component 1 is at most 20 ⁇ m and in particular at most 15 ⁇ m.
  • the notching is carried out so that the layer thickness of the first surface coating along the notched surfaces 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 Dobi. This is shown in the present example. Furthermore, it is possible that the
  • Layer thickness of the first surface coating along the notched surfaces B describes a gradient and, for example in Kerbraum K decreases.
  • the notching in the notch direction K takes place symmetrically, which is illustrated in the sectional view by the V-shape of the notch 8.
  • the notch depth which is determined in the notch direction, can be up to a depth of less than half the thickness of the base body DG, but in particular to a depth of 90% of the thickness of the body 1 DG executed.
  • a cutting, punching or trimming of the component for example by means of a mechanical
  • cutting tool 10 are all possible mechanical cutting tools in question, for example, a roll cutting tool,
  • Shear cutting tool, notch cutting tool, punching tool or a striking knife that allow cutting, punching or cutting of the component 1 with the desired shape.
  • a punching tool for producing a cylindrical recess in the component 1 is used.
  • the resulting component 1 has the first surface coating 5 over a large portion of the punch hole 1 1. Only in a small portion of the punch hole, the surfaces of the body 9 are exposed. The registered by the first surface coating 5 function thus remains in the resulting component 1 is obtained and can even be extended to the cutting areas in the component 1. Subsequent sealing or expensive after - treatment to increase the
  • Surface coating 5 e.g. an adhesive coating would be.
  • the adhesive properties would be after the separation process on the
  • Alternative functional coatings are lakes, conformal coatings and the like. The process is without high technical
  • Figure 2 is a schematic diagram showing the process flow of a method for processing and / or manufacturing a component according to a second embodiment of the present invention.
  • the method illustrated in FIG. 2 differs in that both 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, that is, on itself opposite sides of the component 1, notched. There are the notches 8 and 12.
  • 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 becomes to a depth of less than half the thickness of the base body DG, in particular to a depth of 10 to 40% of the thickness of the body DG, executed. This prevents the resulting notched noses from colliding with each other.
  • 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 carried out symmetrically.
  • the notches 8 and 12 are the same in shape and notch depth.
  • the notching causes the layer thickness of the first surface coating DOM perpendicular to the first surface 3 of the component 1 is determined, and the layer thickness of the second surface coating Dob2, which is determined perpendicular to the second surface 4 of the component 1, compress.
  • Notched areas B is smaller than the layer thickness of the first
  • a layer thickness of the second surface coating along the notched surfaces C is smaller than the layer thickness of the second surface coating D 0 b 2 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.

Landscapes

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

Abstract

L'invention concerne un procédé de traitement et/ou de fabrication d'un élément (1), comprenant les étapes consistant à i) prendre un élément (1) ou un demi-produit qui présente une corps de base (2) doté d'une première surface (3) et d'un premier revêtement superficiel (5) prévu sur la première surface (3), ii) entailler l'élément (1) ou le demi-produit sur la première surface (3) revêtue du premier revêtement superficiel (5), au moins une partie du premier revêtement superficiel (5) d'entaille demeurant intacte le long des surfaces d'entaille (7) et iii) sectionner, percer ou découper l'élément (1) ou le demi-produit le long de l'entaille (8).
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

Publications (2)

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

Family

ID=57914976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17702084.9A Active EP3411165B1 (fr) 2016-02-01 2017-01-30 Procédé de traitement et/ou de fabrication d'un élément, et cet élément

Country Status (5)

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

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CN108290199B (zh) 2021-11-05
CN108290199A (zh) 2018-07-17
EP3411165B1 (fr) 2023-08-23
DE102016201433A1 (de) 2017-08-03
US11247257B2 (en) 2022-02-15
US20180333761A1 (en) 2018-11-22

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