DE102007003745A1 - Apparatus for producing press-hardened sheet-metal components - Google Patents
Apparatus for producing press-hardened sheet-metal components Download PDFInfo
- Publication number
- DE102007003745A1 DE102007003745A1 DE102007003745A DE102007003745A DE102007003745A1 DE 102007003745 A1 DE102007003745 A1 DE 102007003745A1 DE 102007003745 A DE102007003745 A DE 102007003745A DE 102007003745 A DE102007003745 A DE 102007003745A DE 102007003745 A1 DE102007003745 A1 DE 102007003745A1
- Authority
- DE
- Germany
- Prior art keywords
- tool according
- cooling
- die
- tool
- stamp
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/34—Heating or cooling presses or parts thereof
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/062—Press plates
- B30B15/064—Press plates with heating or cooling means
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/673—Quenching devices for die quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Die vorliegende Erfindung bezieht sich auf die Ausführung eines Werkzeuges zur Herstellung von pressgehärteten Blechbauteilen durch Umformung einer erwärmten Platine entsprechend bekannter Verfahren der Press-Härtung. Hierzu wird entsprechend der Technik eine Blechplatine auf eine Umformtemperatur erwärmt, in das Werkzeug eingelegt und umgeformt. Die Abkühlung der umgeformten Werkstücke erfolgt mittels einer Kühlung, die sich in einer Trennfläche zwischen Trägerplatten und den Aktivteilen befinden.The present invention relates to the implementation of a tool for the production of press-hardened sheet-metal components by forming a heated blank according to known methods of press-hardening. For this purpose, according to the art, a sheet metal blanket is heated to a forming temperature, inserted into the tool and reshaped. The cooling of the formed workpieces by means of a cooling, which are located in a separation surface between the carrier plates and the active parts.
Description
Die Erfindung betrifft ein Umformwerkzeug zur Herstellung pressgehärteter Blechformteile.The The invention relates to a forming tool for producing press-hardened Sheet metal parts.
Stand der TechnikState of the art
Das Verfahren des Presshärtens wird in der Praxis eingesetzt um aus Mangan-Bor-Stahlblechen Bauteile zu erzeugen, welche einen annähernd gleichmäßigen Härtegrad von bis zu 1500 Mpa aufweisen. Die Platinen bzw. vorgeformten Bauteile werden dabei in einem Ofen bei Temperaturen von 900°–950°C austenitisiert und in das Umformwerkzeug eingelegt. Es erfolgt die Umformung und Zuhaltung des Werkzeuges unter Druck. Dabei findet eine gezielte Abkühlung und Vergütung des Materials durch eine Martensitumwandlung statt. Die erforderliche Kühlung von Matrize und Stempel, den so genannten Aktivteilen erfolgt üblicherweise durch ein Kühlmittel, in der Regel Wasser, welches durch ein Bohrungs-Kanalsystem im Inneren der Aktivteile geführt wird. Dieses Bohrungs-Kanalsystem ist fertigungstechnisch sehr aufwändig und somit kostenintensiv. Ein weiterer Nachteil dieser Kühlungslösung besteht darin, dass durch fertigungstechnische Grenzen eine exakte, gleichmäßige Kühlung oft nicht möglich ist.The Method of press hardening is used in practice to produce from manganese-boron steel sheets components which a almost uniform degree of hardness of up to 1500 Mpa. The boards or preformed components are doing in an oven at temperatures of 900 ° -950 ° C. Austenitized and inserted into the forming tool. It takes place Forming and locking of the tool under pressure. It finds a targeted cooling and remuneration of the material by a martensite transformation takes place. The required cooling Of die and stamp, the so-called active parts usually takes place by a coolant, usually water, which passes through a bore channel system led inside the active parts becomes. This bore channel system is very expensive to produce and thus costly. Another disadvantage of this cooling solution exists in that by manufacturing limits an exact, even Cooling is often not possible.
Die
Aufgabe und Vorteil der ErfindungTask and advantage of the invention
Der Erfindung liegt die Aufgabe zugrunde die Werkzeugkühlung eines Warmumformwerkzeugs fertigungstechnisch zu vereinfachen bei gleichzeitiger Wirkungsverbesserung und verbesserter Regelbarkeit. Durch diese fertigungstechnische Vereinfachung soll gleichzeitig eine deutliche Kostenreduzierung erreicht werden.Of the Invention is the object of the tool cooling a hot forming tool to simplify manufacturing technology simultaneous improvement of effects and improved controllability. Through this manufacturing simplification should simultaneously a significant cost reduction can be achieved.
Die Aufgabe wird ausgehend von einem Werkzeug nach dem Oberbegriff des Anspruchs 1 durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. In den Unteransprüchen sind vorteilhafte und zweckmäßige Weiterbildungen des erfindungsgemäßen Werkzeuges angegeben.The Task is based on a tool according to the preamble of Claim 1 solved by the characterizing features of claim 1. In the subclaims are advantageous and expedient Further developments of the tool according to the invention specified.
Der Erfindung liegt der Gedanke zugrunde, die Kühlmittelzuführung und Kühlmitteldurchleitung über eine Trägerplatte auszuführen. Auf dieser Platte oder mehreren aneinander gereihten Einzelplatten sind die formgebenden Aktivteile aufgesetzt und mit einer wärmebeständigen Dichtung zur Trägerplatte abgedichtet. Die Kühlkanäle befinden sich entlang der Trennflächen zwischen den Trägerplatten und den Aktivteilen. Vorzugsweise bestehen die Trägerplatten aus einem wärmebeständigen und druckfesten Isoliermaterial. Entsprechend der erforderlichen Kühlleistung können zusätzlich in die Aktivteile offene Kühlkanäle durch mechanische Bearbeitung eingebracht werden. Die Lage der Kühlkanäle entlang der Trennfläche erlaubt auch ein nachträgliches Hinzufügen von Kühlkanälen, sowohl in den Trägerplatten, als auch in den Aktivteilen.Of the Invention is based on the idea of the coolant supply and coolant passage through a carrier plate perform. On this plate or several together lined individual plates are placed on the forming active parts and sealed with a heat-resistant seal to the carrier plate. The cooling channels are located along the separating surfaces between the carrier plates and the active parts. Preferably the carrier plates are made of a heat-resistant and pressure-resistant insulating material. According to the required cooling capacity can additionally open cooling channels in the active parts be introduced by mechanical processing. The location of the cooling channels along the dividing surface also allows a subsequent Adding cooling channels, both in the carrier plates, as well as in the active parts.
Die geometrische Form der Trägerplatten und der Aktivteile kann optional so gestaltet werden, dass die Trennfläche der Werkzeugoberfläche bzw. der Werkstückendform entspricht und sich in einem definierten Abstand zu dieser befindet. Ist dies fertigungstechnisch zu aufwendig, kann die Trennfläche zwischen Trägerplatte und Aktivteil der Werkzeugfläche in ihrer geometrischen Ausprägung zumindest angenähert werden. Bei komplexen Bauteilgeometrien ist es möglich die Trägerplatte entsprechend den Aktivteilen in unterschiedliche und voneinander unabhängige Kühlkreislaufzonen zu unterteilen. Als Kühlmedium wird vorzugsweise Wasser eingesetzt, aber auch alle anderen, im Stand der Technik bekannten Kühlmedien sind denkbar, wie z. B. flüssiger Stickstoff oder Gase. In einer weiteren vorteilhaften Ausgestaltung der Erfindung können die Querschnitte der Kühlkanäle sich entlang der Kühlstrecke verändern. Somit werden Bereiche unterschiedlicher Kühlung und somit unterschiedlicher Härtegrade am pressgehärteten Werkstück erreicht.The geometric shape of the support plates and the active parts can optionally be designed so that the interface the tool surface or the workpiece end shape corresponds and is at a defined distance to this. If this manufacturing technology too expensive, the interface between Support plate and active part of the tool surface at least approximated in their geometric form become. For complex component geometries, it is possible the carrier plate according to the active parts in different and independent cooling circuit zones to divide. The cooling medium is preferably water used, but also all others, known in the art Cooling media are conceivable, such as. As liquid nitrogen or gases. In a further advantageous embodiment of the invention can the cross sections of the cooling channels to change along the cooling route. Consequently become areas of different cooling and thus different Hardness on the press-hardened workpiece reached.
Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den, anhand der Zeichnungen, dargestellten Ausführungsbeispielen: Further Details and advantages of the invention will become apparent from, based the drawings, illustrated embodiments:
Es zeigen:It demonstrate:
Beschreibung von AusführungsbeispielenDescription of exemplary embodiments
Werden
sehr hohe Anforderungen an den Temperaturverlauf bei der Abkühlung
gestellt, so bietet die Ausführung, wie sie in
Die Erfindung ist nicht auf die beschriebenen und dargestellten Ausführungsbeispiele beschränkt. Sie umfasst auch alle fachmännischen Ausgestaltungen im Rahmen des geltenden Anspruch 1.The Invention is not limited to the described and illustrated embodiments limited. It also includes all expert Embodiments within the scope of valid claim 1.
Beispielsweise
bietet das erfindungsgemäße Werkzeug die Möglichkeit
die Trägerplatte
- 11
- Umformpresseforming press
- 22
- Werkzeugraumtool room
- 33
- Stößeltappet
- 44
- Kopfplatteheadstock
- 55
- Schiebetischsliding table
- 66
- Grundplattebaseplate
- 77
- Werkstückworkpiece
- 88th
- Stempelstamp
- 99
- Matrizedie
- 1010
- WerkzeugTool
- 1111
- Kühlkanälecooling channels
- 1212
- Trägerplattencarrier plates
- 1313
- Trennebene/TrennflächeParting line / interface
- 1414
- Dichtungpoetry
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 10341867 A1 [0003] - DE 10341867 A1 [0003]
Claims (14)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007003745.9A DE102007003745B4 (en) | 2007-01-19 | 2007-01-19 | Apparatus for producing press-hardened sheet-metal components |
PCT/DE2008/000011 WO2008086768A1 (en) | 2007-01-19 | 2008-01-08 | Device for producing press-hardened sheet metal elements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007003745.9A DE102007003745B4 (en) | 2007-01-19 | 2007-01-19 | Apparatus for producing press-hardened sheet-metal components |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102007003745A1 true DE102007003745A1 (en) | 2008-07-24 |
DE102007003745B4 DE102007003745B4 (en) | 2017-04-06 |
Family
ID=39468468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007003745.9A Expired - Fee Related DE102007003745B4 (en) | 2007-01-19 | 2007-01-19 | Apparatus for producing press-hardened sheet-metal components |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102007003745B4 (en) |
WO (1) | WO2008086768A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2175041A1 (en) * | 2008-10-09 | 2010-04-14 | C.R.F. Società Consortile per Azioni | Method of hot forming metal plates |
DE102009012940A1 (en) | 2009-03-12 | 2010-09-16 | Volkswagen Ag | Producing a sheet metal component, comprises trimming and/or deforming a workpiece, and partially heating and definingly cooling the workpiece in a cooling tool by placing cooling tool elements on a surface of the workpiece |
DE102010011087A1 (en) | 2010-03-12 | 2011-09-15 | Volkswagen Ag | Method for producing a coolable molding tool |
WO2011113621A1 (en) * | 2010-03-15 | 2011-09-22 | Voestalpine Automotive Gmbh | Apparatus and process for shaping and/or hardening sheet metal components |
EP2309008A3 (en) * | 2009-10-12 | 2012-06-13 | voestalpine Automotive GmbH | Device for producing hardened steel components |
DE102011120725A1 (en) | 2010-12-17 | 2012-06-21 | Volkswagen Ag | Device for hot forming and partial hardening of component, comprises hot forming tool, which has primary tool part with primary mold surface and secondary tool part with secondary mold surface |
DE102011102123A1 (en) * | 2011-05-20 | 2012-11-22 | Elisabeth Braun | Heat treatment apparatus, useful for hardening and tempering sheet metal parts made of steel, comprises a hardening device operated with a coolant for rapidly cooling sheet metal parts, which are heated to an austenitizing temperature |
EP2583766A1 (en) * | 2011-10-21 | 2013-04-24 | EDAG GmbH & Co. KGaA | Forming with cooling |
CN103350147A (en) * | 2013-07-24 | 2013-10-16 | 陈扬 | Cooling gas direct-cooling process and device of hot forming die based on boron steel tube |
DE102012210958A1 (en) | 2012-06-27 | 2014-04-03 | Bayerische Motoren Werke Aktiengesellschaft | Cooled tool for hot working and / or press hardening of a sheet metal material and method for producing a cooling device for this tool |
DE102007047314B4 (en) * | 2007-10-02 | 2015-12-31 | Hfs Hotforming Solutions Gmbh | Pressing tool for hot forming or / and press hardening of workpieces made of sheet metal |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104001811B (en) * | 2014-06-13 | 2016-01-20 | 沈阳飞机工业(集团)有限公司 | A kind of TC4 titanium alloy dihedral thin-walled parts hot forming tool and forming method |
CN106435123B (en) * | 2016-12-14 | 2018-10-16 | 天津天海同步科技有限公司 | A kind of rapid pressure quenching heat treatment tooling |
CN108237181B (en) * | 2016-12-23 | 2019-09-13 | 财团法人金属工业研究发展中心 | Forming device |
CN110605321B (en) * | 2019-09-19 | 2020-12-18 | 中南大学 | Ultralow-temperature forming method for aluminum alloy thin-wall component |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10341867A1 (en) | 2003-09-09 | 2005-03-31 | Volkswagen Ag | Production of a hardened sheet metal profile comprises deforming the profile from an original shape into an intermediate shape, heating the deformed profile to a hardening temperature, and hardening the heated profile by defined cooling |
WO2006128821A1 (en) * | 2005-05-30 | 2006-12-07 | Thyssenkrupp Steel Ag | Method for producing a metallic component comprising adjacent sections having different material properties by means of press hardening |
EP1734135A2 (en) * | 2005-06-16 | 2006-12-20 | Benteler Automobiltechnik GmbH | Press and process for warm forming and hardening of steel workpieces |
Family Cites Families (4)
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FR1109936A (en) * | 1954-08-12 | 1956-02-03 | Saint Gobain | Apparatus for smoothing or polluting sheets of glass or the like |
US3703093A (en) * | 1969-11-11 | 1972-11-21 | Aisin Seiki | Process and apparatus for performing a simultaneous and combined press-forming and heat-treatment of steel stock |
JP2005007442A (en) * | 2003-06-19 | 2005-01-13 | Yoshihiro Kato | Press |
DE102005042765C5 (en) * | 2005-09-08 | 2013-01-03 | Voestalpine Automotive Gmbh | mold |
-
2007
- 2007-01-19 DE DE102007003745.9A patent/DE102007003745B4/en not_active Expired - Fee Related
-
2008
- 2008-01-08 WO PCT/DE2008/000011 patent/WO2008086768A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10341867A1 (en) | 2003-09-09 | 2005-03-31 | Volkswagen Ag | Production of a hardened sheet metal profile comprises deforming the profile from an original shape into an intermediate shape, heating the deformed profile to a hardening temperature, and hardening the heated profile by defined cooling |
WO2006128821A1 (en) * | 2005-05-30 | 2006-12-07 | Thyssenkrupp Steel Ag | Method for producing a metallic component comprising adjacent sections having different material properties by means of press hardening |
EP1734135A2 (en) * | 2005-06-16 | 2006-12-20 | Benteler Automobiltechnik GmbH | Press and process for warm forming and hardening of steel workpieces |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007047314B4 (en) * | 2007-10-02 | 2015-12-31 | Hfs Hotforming Solutions Gmbh | Pressing tool for hot forming or / and press hardening of workpieces made of sheet metal |
EP2175041A1 (en) * | 2008-10-09 | 2010-04-14 | C.R.F. Società Consortile per Azioni | Method of hot forming metal plates |
DE102009012940A1 (en) | 2009-03-12 | 2010-09-16 | Volkswagen Ag | Producing a sheet metal component, comprises trimming and/or deforming a workpiece, and partially heating and definingly cooling the workpiece in a cooling tool by placing cooling tool elements on a surface of the workpiece |
DE102009012940B4 (en) * | 2009-03-12 | 2017-12-07 | Volkswagen Ag | Method for producing a component, in particular a sheet-metal component, and production line for producing the component |
EP2309008A3 (en) * | 2009-10-12 | 2012-06-13 | voestalpine Automotive GmbH | Device for producing hardened steel components |
DE102010011087A1 (en) | 2010-03-12 | 2011-09-15 | Volkswagen Ag | Method for producing a coolable molding tool |
WO2011110346A2 (en) | 2010-03-12 | 2011-09-15 | Volkswagen Aktiengesellschaft | Method for producing a coolable moulding tool |
WO2011110346A3 (en) * | 2010-03-12 | 2011-11-10 | Volkswagen Aktiengesellschaft | Method for producing a coolable molding tool, and molding tool produced using said method |
CN102883834A (en) * | 2010-03-12 | 2013-01-16 | 大众汽车有限公司 | Method for producing a coolable moulding tool, and molding tool produced using said method |
CN102883834B (en) * | 2010-03-12 | 2016-01-20 | 大众汽车有限公司 | For the manufacture of the method for coolable mould and the mould that manufactured by the method |
WO2011113621A1 (en) * | 2010-03-15 | 2011-09-22 | Voestalpine Automotive Gmbh | Apparatus and process for shaping and/or hardening sheet metal components |
DE102011120725A1 (en) | 2010-12-17 | 2012-06-21 | Volkswagen Ag | Device for hot forming and partial hardening of component, comprises hot forming tool, which has primary tool part with primary mold surface and secondary tool part with secondary mold surface |
DE102011102123A1 (en) * | 2011-05-20 | 2012-11-22 | Elisabeth Braun | Heat treatment apparatus, useful for hardening and tempering sheet metal parts made of steel, comprises a hardening device operated with a coolant for rapidly cooling sheet metal parts, which are heated to an austenitizing temperature |
DE102011102123B4 (en) * | 2011-05-20 | 2013-01-03 | Elisabeth Braun | Heat treatment device for sheet metal parts and processes |
EP2583766A1 (en) * | 2011-10-21 | 2013-04-24 | EDAG GmbH & Co. KGaA | Forming with cooling |
DE102012210958A1 (en) | 2012-06-27 | 2014-04-03 | Bayerische Motoren Werke Aktiengesellschaft | Cooled tool for hot working and / or press hardening of a sheet metal material and method for producing a cooling device for this tool |
US10081047B2 (en) | 2012-06-27 | 2018-09-25 | Bayerische Motoren Werke Aktiengesellschaft | Cooled tool for hot-forming and/or press-hardening of a sheet metal material and method for producing a cooling device for this tool |
CN103350147B (en) * | 2013-07-24 | 2015-12-23 | 陈扬 | The direct-cooled technique of refrigerating gas based on the hot-forming die of boron steel steel pipe and device |
CN103350147A (en) * | 2013-07-24 | 2013-10-16 | 陈扬 | Cooling gas direct-cooling process and device of hot forming die based on boron steel tube |
Also Published As
Publication number | Publication date |
---|---|
WO2008086768A1 (en) | 2008-07-24 |
DE102007003745B4 (en) | 2017-04-06 |
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