EP1253208B1 - Method of manufacturing a hardened sheet metal profile - Google Patents

Method of manufacturing a hardened sheet metal profile Download PDF

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Publication number
EP1253208B1
EP1253208B1 EP02008690A EP02008690A EP1253208B1 EP 1253208 B1 EP1253208 B1 EP 1253208B1 EP 02008690 A EP02008690 A EP 02008690A EP 02008690 A EP02008690 A EP 02008690A EP 1253208 B1 EP1253208 B1 EP 1253208B1
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EP
European Patent Office
Prior art keywords
metal profile
sheet metal
sheet
press tool
profile
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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.)
Not-in-force
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EP02008690A
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German (de)
French (fr)
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EP1253208A1 (en
Inventor
Ludger Gehringhoff
Hans-Jürgen Knaup
Udo Dr. Klasfauseweh
Werner Böhmer
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Benteler Automobiltechnik GmbH
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Benteler Automobiltechnik GmbH
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Priority to DE10120919A priority Critical patent/DE10120919A1/en
Priority to DE10120919 priority
Application filed by Benteler Automobiltechnik GmbH filed Critical Benteler Automobiltechnik GmbH
Publication of EP1253208A1 publication Critical patent/EP1253208A1/en
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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62Quenching devices
    • C21D1/673Quenching devices for die quenching
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00Flanging or other edge treatment, e.g. of tubes
    • B21D19/08Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
    • B21D19/088Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws for flanging holes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02Stamping using rigid devices or tools
    • B21D22/04Stamping using rigid devices or tools for dimpling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines gehärteten Blechprofils aus einer Platine oder einem Halbzeug gemäß den Maßnahmen im Oberbegriff von Patentanspruch 1.The invention relates to a method for producing a hardened sheet metal profile from a circuit board or semi-finished product in accordance with the measures in The preamble of claim 1.
Durch die DE 24 52 486 A1 zählt ein Verfahren zur Herstellung eines gehärteten Blechprofils aus einer Platine in einem Presshärtverfahren zum Stand der Technik, bei dem eine aus härtbarem Stahl bestehende Platine auf Härtetemperatur erhitzt, dann in einem Pressenwerkzeug warm umgeformt und anschließend ausgehärtet wird, während das Blechprofil im Pressenwerkzeug verbleibt. Da das Blechprofil bei der im Zuge des Härtungsvorgangs vorgenommenen Kühlung im Pressenwerkzeug eingespannt ist, erhält man ein Produkt mit guter Maßhaltigkeit.From DE 24 52 486 A1 a process for the production of a cured one counts Sheet profile from a board in a Presshärtverfahren for State of the art, in which a made of hardenable steel board heated to hardening temperature, then hot worked in a press tool and then cured while the sheet metal profile in the press tool remains. As the sheet metal profile in the course of the curing process made cooling in the press tool is clamped receives a product with good dimensional stability.
Im Rahmen der WO 99/07492 ist vorgesehen, das vorbeschriebene Presshärtverfahren zu modifizieren und im Pressenwerkzeug die randseitigen Bereiche von vorgefertigten Löchern abzubiegen, so dass Kragen entstehen. In the context of WO 99/07492 is provided, the above-described Presshärtverfahren to modify and in the press tool, the marginal areas Turn off prefabricated holes so that collars emerge.
Dies geschieht im Pressenwerkzeug vor dem Härten. Die Öffnungen im Blechprofil sollen als Durchführungslöcher für Befestigungsschrauben dienen. Denkbar ist es, solche Löcher auch zur Lageorientierung des Blechprofils in nachfolgenden Fertigungsoperationen heranzuziehen.This happens in the press tool before hardening. The openings in the Sheet metal profile should serve as feedthrough holes for fastening screws. It is conceivable such holes also for the orientation of the sheet metal profile in subsequent manufacturing operations.
Unvorteilhaft ist die Vorfertigung der Löcher in der Ausgangsplatine. Dies ist mit zusätzlichem Fertigungs- und Logistikaufwand verbunden. Auch ist die Maßgenauigkeit des hergestellten Blechprofils in die Abhängigkeit der Vorlochung gestellt. Werden die vorgegebenen Toleranzen verlassen, ist das Blechprofil unbrauchbar. Insbesondere bei Blechprofilen mit komlizierteren Geometrien muss mit größerem Ausschuss im Zuschnitt der Platinen kalkuliert werden.Unfavorable is the prefabrication of the holes in the output board. This is associated with additional manufacturing and logistics effort. Also is the Dimensional accuracy of the manufactured sheet profile in the dependence of the pre-perforation posed. If the given tolerances are left, that is Sheet metal profile unusable. Especially with metal profiles with komlizierteren Geometries must be calculated with a larger scrap in the blank of the boards become.
Das Warmumformen und Härten im Pressenwerkzeug hat aufgrund der durch die Kombination von Umform- und Vergütungsvorgang in einem Werkzeug rationellen Arbeitsweise generell Vorteile. Es kann jedoch trotz der Einspannung des Blechprofils im Werkzeug aufgrund von Wärmespannungen zu nicht exakt vorherbestimmbarem Verzug am Bauteil kommen. Dieser kann sich nachteilig auf nachgeschaltete Fertigungsoperationen auswirken. Abhilfe können hier Referenzpunkte am Blechprofil schaffen, die zur Lageorientierung des Blechprofils in nachfolgenden Fertigungsoperationen herangezogen werden.The hot forming and curing in the press tool has due to the through the combination of forming and tempering process in one tool rational operation generally benefits. It can, however, despite the restraint the sheet metal profile in the tool due to thermal stress come to not exactly predeterminable delay on the component. This can be detrimental to downstream manufacturing operations. Remedy here can create reference points on the sheet metal profile, the position orientation the sheet metal profile in subsequent manufacturing operations be used.
Der Erfindung liegt daher ausgehend von dem im Stand der Technik bekannten Verfahren die Aufgabe zugrunde, dieses rationeller und effizienter zu gestalten und den Fertigungsablauf von Blechprofilen zu verbessern.The invention is therefore based on the known in the art Process the task based, this more rational and efficient to design and improve the production process of sheet metal profiles.
Die Lösung dieser Aufgabe besteht gemäß der Erfindung in einem Verfahren nach Patentanspruch 1. Dieses individualisiert sich dadurch, dass Kragen beim Umformvorgang im Pressenwerkzeug aus ungelochten Bereichen der Platine ausgeformt werden. Ein Vorlochen der Platinen entfällt vollkommen. Dieser komplette Arbeitsschritt in der Vorfertigung kann entfallen. Hierdurch werden Werkzeug- und Arbeitskosten eingespart. Da die Kragen unmittelbar im Pressenwerkzeug erzeugt werden, kann der Zuschnitt der Platinen bzw. die Fertigung der Halbzeuge unabhängig von den Kragen erfolgen. Auch dies führt zu einer Rationalisierung des Verfahrens.The solution to this problem consists according to the invention in a method according to claim 1. This individualized by the fact that collar during the forming process in the press tool from non-perforated areas of Board are formed. A pre-punching of the boards is completely eliminated. This complete step in prefabrication can be omitted. hereby Tool and labor costs are saved. Because the collar is instant be produced in the press tool, the blank of the boards or the production of semi-finished products independently of the collar done. Also this leads to a rationalization of the process.
Als Ausgangsprodukt kommt eine Platine aus härtbarem Stahlblech zum Einsatz. Diese kann bereits einen formvorbereitenden Profilschnitt erfahren haben. Auch vorgeformte Blechteile als Halbzeuge können erfindungsgemäß weiter verarbeitet werden.The starting material is a board made of hardenable steel sheet Commitment. This can already experience a shape-preparing profile section to have. Also preformed sheet metal parts as semi-finished products can according to the invention be further processed.
Die im Pressenwerkzeug im bzw. am Blechprofil erzeugten Kragen können als Referenzpunkte zur Lageorientierung des Blechprofils in nachfolgenden Fertigungsoperationen oder zur Versteifung des Blechprofils bzw. als Montagelöcher dienen.The collars produced in the press tool in or on the sheet profile can as reference points for positional orientation of the sheet metal profile in subsequent Manufacturing operations or for stiffening the sheet metal profile or as mounting holes serve.
Wie bereits erwähnt ist ein Vorlochen nicht erforderlich. Diese Ausführungsform ist wirtschaftlich und logistisch vorteilhaft. Auch ist keine erhöhte Positioniergenauigkeit des Rohlings, also der Platine bzw. des Halbzeugs im Pressenwerkzeug erforderlich. Eine Abstimmung der Positionierung einer Vorlochung zum Formenstempel ist nicht nötig. Weiterhin vorteilhaft ist die Einhaltung einer konstanten Kragenhöhe.As already mentioned, a pre-punch is not required. This embodiment is economically and logistically advantageous. Also, no increased positioning accuracy of the blank, so the board or semi-finished in the Press tool required. A vote of the positioning of a Pre-punching to the mold punch is not necessary. Further advantageous is the Maintaining a constant collar height.
Bevorzugt kommt eine Platine bzw. ein Halbzeug aus einem Stahl zum Einsatz, der in Gewichtsprozenten ausgedrückt besteht aus Kohlenstoff (C) 0,19 bis 0,25, Silizium (Si) 0,15 bis 0,50, Mangan (Mn) 1,10 bis 1,40, Titan (Ti) 0,020 bis 0,050, Bor (B) 0,002 bis 0,005, Aluminium (AI) 0,02 bis 0,06 sowie Phosphat (P) in einem Anteil bis max. 0,025, Schwefel (S) max. 0,015, Chrom (Cr) max. 0,35 und Molybdän (Mo) max. 0,35, wobei der Rest Eisen (Fe) ist einschließlich erschmelzungsbedingter Verunreinigungen.Preferably, a board or a semi-finished product made of a steel is used, in terms of weight percent consists of carbon (C) 0.19 to 0.25, silicon (Si) 0.15 to 0.50, manganese (Mn) 1.10 to 1.40, titanium (Ti) 0.020 to 0.050, boron (B) 0.002 to 0.005, aluminum (AI) 0.02 to 0.06, and Phosphate (P) in a proportion up to max. 0.025, sulfur (S) max. 0,015, Chrome (Cr) max. 0.35 and molybdenum (Mo) max. 0.35, with the remainder iron (Fe) is including contaminants due to melting.
Die Platine bzw. das Halbzeug aus Stahlblech wird auf Härtungstemperatur, das heißt auf eine über Ac3 liegende Temperatur erhitzt, wo sich der Stahl in austenitischem Zustand befindet. In der Regel liegt diese Temperatur zwischen 775 °C und 1000 °C. Anschließend erfolgt der Umformvorgang im Pressenwerkzeug, worauf durch Kühlung das Härten einsetzt. Hierbei stellt sich ein feinkörniges martensitisches oder bainitisches Werkstoffgefüge ein. Das Blechprofil befindet sich während des Härtungsvorgangs eingespannt im Pressenwerkzeug. Die hierbei vorgenommene Kühlung kann direkt oder indirekt durchgeführt werden. Bei der direkten Kühlung wird das Blechprofil unmittelbar in Kontakt mit einem Kühlmittel gebracht. Bei der indirekten Kühlung wird das Pressenwerkzeug bzw. Teile hiervon gekühlt.The plate or the semifinished product made of sheet steel is heated to the curing temperature, that is to a temperature above Ac 3 , where the steel is in an austenitic state. As a rule, this temperature is between 775 ° C and 1000 ° C. Subsequently, the forming process takes place in the press tool, whereupon hardening begins by cooling. Here, a fine-grained martensitic or bainitic material structure arises. The sheet profile is clamped during the curing process in the press tool. The case made cooling can be carried out directly or indirectly. In direct cooling, the sheet metal profile is brought directly into contact with a coolant. In indirect cooling, the press tool or parts thereof is cooled.
Gemäß den Maßnahmen von Patentanspruch 2 werden die Kragen in Form von randseitigen Verprägungen am Blechprofil erzeugt. Hierbei wird ein Kragen am Bauteilrand während des Pressenvorgangs vor dem Härten spanlos hergestellt. Die Kragen dienen als Referenzpunkte zur Lageorientierung des Blechprofils in nachfolgenden Fertigungsoperationen. Anhand der Referenzpunkte wird das Blechprofil aufgenommen bzw. ausgerichtet. Dies ist von besonderem Vorteil, weil es infolge des Warmumformvorgangs am umgeformten Blechprofil zu nicht exakt vorbestimmbarem Verzug kommen kann. Über die Referenzpunkte kann jedoch eine Lageorientierung sichergestellt werden, an der sich die nachfolgenden Fertigungsoperationen ausrichten. Hierdurch wird eine gleichbleibende Qualität und Reproduzierbarkeit auch bei einer Fertigung in hohen Stückzahlen sichergestellt. Die Kragen können auch zur Versteifung des Blechprofils beitragen.According to the measures of claim 2, the collar in shape produced by marginal stampings on the sheet metal profile. This is a collar at the edge of the component during the pressing process before hardening without cutting produced. The collars serve as reference points for the position orientation of the Sheet metal profiles in subsequent manufacturing operations. Based on the reference points The sheet profile is recorded or aligned. This is from particular advantage, because it as a result of the hot forming process at the formed Sheet metal profile can not come to exact predeterminable delay. However, a positional orientation can be ensured via the reference points which the subsequent manufacturing operations are based on. This will ensure a consistent quality and reproducibility as well ensured in a high volume production. The collars can also contribute to the stiffening of the sheet metal profile.
Für die Praxis vorteilhaft ist auch eine Ausgestaltung des erfindungsgemäßen Verfahrens nach Anspruch 3. Danach werden die Kragen als Durchstellungen im Blechprofil erzeugt. Das Lochen und Durchstellen erfolgt quasi in einem Arbeitsgang bzw. in unmittelbar aufeinander folgenden Operationen im Pressenwerkzeug. Also advantageous for practice is an embodiment of the invention The method of claim 3. Thereafter, the collars are as enforcements generated in the sheet metal profile. The punching and punching is done as it were in one operation or in immediate successive operations in the press tool.
Zur Herstellung einer Durchstellung kann zunächst eine topfartige Ausformung am Blechprofil ausgebildet werden, deren Boden anschließend herausgetrennt wird, wie dies Anspruch 4 vorsieht.To produce an opening, a pot-like shape can first be formed be formed on the sheet metal profile, the bottom then is separated out, as this claim 4 provides.
Möglich ist auch, dass zur Herstellung einer Durchstellung im Pressenwerkzeug eine Öffnung im Blechprofil erzeugt wird mit gleichzeitiger kragenartiger Umstellung der randseitigen Bereich der Öffnung (Anspruch 5).It is also possible that for the production of an adjustment in the press tool an opening in the sheet metal profile is generated with simultaneous collar-like Conversion of the edge region of the opening (claim 5).
Die Erfindung ist nachfolgend anhand von in den Zeichnungen dargestellten Ausführungsbeispielen näher beschrieben. Es zeigen:
Figur 1
einen Ausschnitt aus einem Blechprofil mit einem Kragen in Form einer randseitigen Verprägung;
Figur 2
im Schema ein erstes Pressenwerkzeug und die Vorgehensweise zur Herstellung einer Durchstellung an einem Blechprofil;
Figur 3
einen Ausschnitt aus einem Blechprofil in perspektivischer Ansicht mit der Darstellung einer Durchstellung und
Figur 4
wiederum technisch vereinfacht ein zweites Pressenwerkzeug und die Vorgehensweise zur Herstellung einer Durchstellung an einem Blechprofil.
The invention is described below with reference to exemplary embodiments illustrated in the drawings. Show it:
FIG. 1
a section of a sheet metal profile with a collar in the form of a marginal embossing;
FIG. 2
in the diagram, a first press tool and the procedure for producing a setting on a sheet metal profile;
FIG. 3
a section of a sheet metal profile in a perspective view showing a setting and
FIG. 4
again technically simplifies a second press tool and the procedure for producing an adjustment to a sheet metal profile.
Figur 1 zeigt ein Blechprofil 1 bzw. einen Ausschnitt daraus mit einem randseitigen Kragen in Form einer in Bildebene nach oben ausgestellten Verprägung 2. Das Blechprofil 1 wird aus einer anfangs ebenen Platine 3 aus Stahlblech hergestellt. Die Platine 3 ist in der Figur 1 durch die gestrichelte Linie angedeutet. Bei der Herstellung des Blechprofils 1 wird die Platine 3 in einem Pressenwerkzeug warm umgeformt, und zwar bei einer Härtungstemperatur zwischen 700°C und 1100°C. Noch im Pressenwerkzeug eingespannt ist das Blechprofil 1 dann durch schnelle Abkühlung gehärtet worden. Im Zuge des Umformvorgangs ist die Verprägung 2 am Blechprofil 1 erzeugt worden. Eine solche Verprägung 2 am Rand des Blechprofils 1 dient als Referenzpunkt zur Lageorientierung des Blechprofils 1 in nachfolgenden Fertigungsoperationen. Man erkennt, dass die Verprägung 2 aus der Ebene des Blechprofils 1 bzw. der ursprünglichen Platine 3 vorsteht.FIG. 1 shows a sheet-metal profile 1 or a section thereof with an edge-side Collar in the form of an embossed image on the image plane 2. The sheet metal profile 1 is made from an initially flat board 3 Made of sheet steel. The board 3 is in the figure 1 by the dashed Indicated line. In the manufacture of the sheet metal profile 1, the board 3 in thermoformed a press tool, and at a curing temperature between 700 ° C and 1100 ° C. Still clamped in the press tool If the sheet metal profile 1 has then been hardened by rapid cooling. In the course of the forming process, the embossment 2 is produced on the sheet metal profile 1 Service. Such embossment 2 at the edge of the sheet metal profile 1 serves as Reference point for positional orientation of the sheet metal profile 1 in subsequent Manufacturing operations. It can be seen that the embossment 2 is out of the plane the sheet metal profile 1 and the original board 3 protrudes.
In der Figur 2 ist ein Pressenwerkzeug 4 dargestellt mit einer unteren Matrize 5, einem oberen Stempel 6 und einem Niederhalter 7, der das Bauteil (Platine) im Pressenwerkzeug 4 fixiert. Der Stempel 6 wird bem Umformvorgang von seiner oberen Ausgangslage abgesenkt. Beim Niedergang des Stempels 6 wird zunächst eine topfartige Ausformung an der Platine bzw. des hieraus warmgeformten Blechprofils 8 erzeugt. Bei Erreichen der Schneidkante 9 an der Matrize 5 wird durch den Stempel 6 die Blechronde am Boden 10 der Ausformung herausgetrennt. Die so erstellte Durchstellung 11 im Blechprofil 8 dient erfindungsgemäß als Referenzpunkt zur Ausrichtung und Lageorientierung des Blechprofils 8 zur Versteifung des Blechprofils oder als Montageloch zur Durchführung einer Schraube oder ähnlichem. Wie zuvor beschrieben wird auch das Blechprofil 8 im Pressenwerkzeug 4 eingespannt gehärtet.FIG. 2 shows a press tool 4 with a lower die 5, an upper punch 6 and a hold-down 7, the component (board) fixed in the press tool 4. The stamp 6 is bem forming process lowered from its upper starting position. At the decline of the stamp 6 is first a pot-like shape of the board or from this thermoformed sheet metal profile 8 produced. Upon reaching the cutting edge 9 on the die 5 is through the punch 6, the sheet metal blank at the bottom 10 of Forming cut out. The created setting 11 in the sheet metal profile 8 serves according to the invention as a reference point for alignment and Orientation of the sheet metal section 8 for stiffening the sheet metal profile or as Mounting hole for carrying a screw or the like. As before also described the sheet metal profile 8 is clamped in the press tool 4 hardened.
Bei dem in der Figur 4 dargestellten Pressenwerkzeug 12 wird eine Platine 13 in einer unteren Matrize 14 durch einen Niederhalter 15 gehalten. Die linke Bildhälfte zeigt die Ausgangslage der Platine 13 im Pressenwerkzeug 12 vor dem Umformvorgang. Hierbei ist die Platine 13 durch den oberen Niederhalter 15 und einem unteren Stempel 16 eingespannt. Der untere Stempel 16 befindet sich mittig im Freiformraum 17 der Matrize 14. Im Niederhalter 15 ist ein Schneidwerkzeug in Form einer Loch- und Durchstellhülse 18 geführt verlagerbar angeordnet. Dieses trennt beim mit dem Hub des Pressenwerkzeugs 12 konform gehenden Schneidvorgang in der Abwärtsbewegung eine Öffnung 19 in die Platine 13 bzw. das hieraus erzeugte Blechprofil 20. Gleichzeitig werden mit der Abwärtsbewegung des Schneidwerkzeugs 18 die randseitigen Bereiche 21 der Öffnung 19 kragenartig umgestellt und so eine Durchstellung 22 im Blechprofil 20 erzeugt. In the case of the press tool 12 shown in FIG. 4, a circuit board is produced 13 held in a lower die 14 by a hold-15. The left half shows the initial position of the board 13 in the press tool 12 before the forming process. Here, the board 13 through the upper Downholder 15 and a lower punch 16 clamped. The lower Stamp 16 is located centrally in the free-form space 17 of the die 14. In the hold 15 is a cutting tool in the form of a hole and setting sleeve 18 guided displaced arranged. This separates when with the hub of the press tool 12 conforming cutting operation in the downward movement an opening 19 in the board 13 and the generated therefrom Metal profile 20. At the same time, with the downward movement of the cutting tool 18, the edge-side regions 21 of the opening 19 changed over like a collar and so creates a passage 22 in the sheet metal profile 20.
Der in Figur 3 dargestellte Ausschnitt aus einem Blechprofil 8 bzw. 20 zeigt eine Durchstellung 12, 22, so wie sie in einer Vorgehensweise gemäß den Figuren 2 bzw. 4 beschrieben, erzeugt worden ist. In der Regel dienen zwei solcher Durchstellungen 12, 22 als Referenzpunkte in einem Blechprofil 8, 20 zur Lageorientierung desselben in nachfolgenden Fertigungsoperationen. Die Referenzpunkte werden zur Aufnahme und Orientierung eines Blechprofils 8, 20 bei Schneidoperationen, beispielsweise Laserschneiden, Fügeoperationen etc. herangezogen. Auch zur koordinatenmäßigen Erfassung und Justierung des Blechprofils 8, 20 in numerisch gesteuerten Anlagen können die Referenzpunkte genutzt werden.The section shown in Figure 3 of a sheet metal profile 8 and 20 shows an adjustment 12, 22, as they are in a procedure according to the Figures 2 and 4 described, has been generated. As a rule, serve two Such Durchstellungen 12, 22 as reference points in a sheet metal profile 8, 20 for the orientation of the same in subsequent manufacturing operations. The reference points become the recording and orientation of a sheet metal profile 8, 20 in cutting operations, such as laser cutting, joining operations etc. used. Also for coordinate acquisition and Adjustment of the sheet metal profile 8, 20 in numerically controlled systems can the reference points are used.
Grundsätzlich können die Durchstellungen 12 bzw. 22 aber auch zur Versteifung oder als Montageöffnungen im Blechprofil 8, 22 dienen. In principle, the throws 12 and 22 but also for stiffening or serve as mounting holes in the sheet metal profile 8, 22.
BezugszeichenaufstellungREFERENCE NUMBERS
1 -1 -
Blechprofilmetal profile
2 -2 -
VerprägungVerprägung
3 -3 -
Platinecircuit board
4 -4 -
PressenwerkzeugPress tool
5 -5 -
Matrizedie
6 -6 -
Stempelstamp
7 -7 -
NiederhalterStripper plate
8 -8th -
Blechprofilmetal profile
9 -9 -
Schneidkantecutting edge
10 -10 -
Bodenground
11 -11 -
Durchstellungby position
12 -12 -
PressenwerkzeugPress tool
13 -13 -
Platinecircuit board
14 -14 -
Matrizedie
15 -15 -
NiederhalterStripper plate
16 -16 -
unterer Stempellower stamp
17 -17 -
FreiformraumFreeform space
18 -18 -
Schneidwerkzeugcutting tool
19 -19 -
Öffnungopening
20 -20 -
Blechprofilmetal profile
21 -21 -
randseitiger Bereich v. 19marginal area v. 19
22 -22 -
Durchstellungby position

Claims (5)

  1. A method of making a hardened sheet-metal profile from a plate or a semi-product, which is hot-formed and hardened in a press tool to form the sheet-metal profile, collars which project from the plane of the plate being provided on the sheet-metal profile, characterised in that the collars are formed, during the formation operation, from non-perforated zones of the plate.
  2. A method according to claim 1, characterised in that the collars are produced in the form of edge embossings (2) on the sheet-metal profile (1).
  3. A method according to claim 1, characterised in that the collars are produced in the form of punctures (12, 22) in the sheet-metal profile (8, 20).
  4. A method according to claim 3, characterised in that to make a puncture (12) a pot-shaped formation is first formed and then the bottom (10) of the formation is separated out.
  5. A method according to claim 3, characterised in that to make a puncture (22) an opening (19) is produced in the sheet-metal profile (20) with a collar-like bending over of its edge zones (21).
EP02008690A 2001-04-27 2002-04-18 Method of manufacturing a hardened sheet metal profile Not-in-force EP1253208B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10120919A DE10120919A1 (en) 2001-04-27 2001-04-27 Process for producing a hardened sheet metal profile
DE10120919 2001-04-27

Publications (2)

Publication Number Publication Date
EP1253208A1 EP1253208A1 (en) 2002-10-30
EP1253208B1 true EP1253208B1 (en) 2004-07-07

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EP (1) EP1253208B1 (en)
AT (1) AT270713T (en)
CZ (1) CZ298312B6 (en)
DE (2) DE10120919A1 (en)
ES (1) ES2223991T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
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DE102011054866A1 (en) 2011-10-27 2013-05-02 Benteler Automobiltechnik Gmbh Preparing hot-formed and press-hardened motor vehicle body component, comprises processing metal sheet circuit board from curable sheet steel in hot-forming and press-hardening tool, and forming area in circuit board as embossing region
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DE102011117066A1 (en) 2011-10-27 2013-05-02 Benteler Automobiltechnik Gmbh Press mold for producing partially cured sheet component from sheet metal plate or semi-finished product, has a plunger comprising a piercing portion for forming an aperture and a molded portion for creating a collar at the aperture
DE102011054866A1 (en) 2011-10-27 2013-05-02 Benteler Automobiltechnik Gmbh Preparing hot-formed and press-hardened motor vehicle body component, comprises processing metal sheet circuit board from curable sheet steel in hot-forming and press-hardening tool, and forming area in circuit board as embossing region
DE102014004165A1 (en) 2014-03-22 2015-09-24 Audi Ag Sheet metal component with stamping contour

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AT270713T (en) 2004-07-15
DE10120919A1 (en) 2002-10-31

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