EP1335036A1 - Method for producing a structural component for vehicles - Google Patents

Method for producing a structural component for vehicles Download PDF

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Publication number
EP1335036A1
EP1335036A1 EP03001498A EP03001498A EP1335036A1 EP 1335036 A1 EP1335036 A1 EP 1335036A1 EP 03001498 A EP03001498 A EP 03001498A EP 03001498 A EP03001498 A EP 03001498A EP 1335036 A1 EP1335036 A1 EP 1335036A1
Authority
EP
European Patent Office
Prior art keywords
structural component
final shape
aluminum
conversion line
tool
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.)
Withdrawn
Application number
EP03001498A
Other languages
German (de)
French (fr)
Inventor
Ludger Gehringhoff
Patrick Reinhold
Thomas Tröster
Stefan Gosmann
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.)
Benteler Automobiltechnik GmbH
Original Assignee
Benteler Automobiltechnik GmbH
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
Priority claimed from DE10220323A external-priority patent/DE10220323C1/en
Application filed by Benteler Automobiltechnik GmbH filed Critical Benteler Automobiltechnik GmbH
Publication of EP1335036A1 publication Critical patent/EP1335036A1/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/12—Aluminium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49616—Structural member making
    • Y10T29/49622—Vehicular structural member making

Definitions

  • the invention relates to a method for producing a structural component for vehicle construction.
  • Structural components for vehicle construction are, for example, bumpers, side impact beams or door pillars.
  • a boron steel coated with aluminum has proven to be advantageous proved.
  • the structural components are heated immediately brought from a board into the final shape.
  • the object of the invention is based on the prior art to propose a method with which even complicated configurations of a structural component made of boron steel coated with aluminum can be made available for vehicle construction.
  • One solution provides that initially under ambient temperature, that is Room temperature, for example from a board separated from a coil
  • a structural component made of boron steel depending on its complexity in one tool or in several tools one after the other up to the vicinity of its final shape is preconfigured. This pre-deformation can be carried out without any problems since the Boron steel board is not coated.
  • the structural component If the structural component has almost reached its final shape, it will be at one Temperature of approx. 650 ° C coated with aluminum or an aluminum alloy. This can be done, for example, in the immersion process.
  • the heating temperature is approximately 930 ° C.
  • a second solution variant of the task provides that as above explained, preconfigured structural component to a temperature above the upper conversion line in the Z-T-U diagram (e.g. 930 ° C), then in a melt at a temperature also above the upper conversion line in the Z-T-U diagram with aluminum or an aluminum alloy coated and then in one tool with simultaneous hardening in the Final shape is configured.
  • a temperature above the upper conversion line in the Z-T-U diagram e.g. 930 ° C
  • the invention allows for all three solution variants, if necessary to connect a hardening process to the hardening.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Body Structure For Vehicles (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

Production of a structural part comprises pre-configuring a structural part close to its final shape from a boron steel sheet bar under ambient temperature, coating with aluminum (alloy), bringing to a temperature above the upper conversion line in a Z-T-U chart, and simultaneously hardening in a tool having the final shape. An Independent claim is also included for an alternative process for the production of a structural part comprising pre-configuring a structural part close to its final shape from a boron steel sheet bar under ambient temperature, bringing to a temperature above the upper conversion line in a Z-T-U chart, coating with aluminum (alloy) in a melt, and simultaneously hardening in a tool having the final shape

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines Strukturbauteils für den Fahrzeugbau.The invention relates to a method for producing a structural component for vehicle construction.

Strukturbauteile für den Fahrzeugbau sind beispielsweise Stoßfänger, Seitenaufprallträger oder Türsäulen. Zur Herstellung der meisten dieser Strukturbauteile hat sich ein mit Aluminium beschichteter Borstahl als vorteilhaft erwiesen. Hierbei werden die Strukturbauteile im erwärmten Zustand unmittelbar aus einer Platine in die Endform gebracht.Structural components for vehicle construction are, for example, bumpers, side impact beams or door pillars. To manufacture most of these structural components a boron steel coated with aluminum has proven to be advantageous proved. Here, the structural components are heated immediately brought from a board into the final shape.

Es gibt indessen mit Aluminium beschichtete Strukturbauteile aus Borstahl komplizierter Formgebung, die nicht in einem einzigen Arbeitsgang in die Endform gebracht werden können. In einem solchen Fall müssten die Strukturbauteile in zwei oder mehr Werkzeugen nacheinander zunächst kalt umgeformt werden. Dies hätte zur Folge, dass die Aluminiumbeschichtung während des Formvorgangs reißt und das Grundmaterial freigelegt wird. Die schützende Beschichtung wäre zerstört.There are, however, structural components made of boron steel coated with aluminum complicated shape, which is not in a single operation in the final shape can be brought. In such a case, the structural components would have to cold formed in two or more tools one after the other become. This would have the consequence that the aluminum coating during the Molding process tears and the base material is exposed. The protective Coating would be destroyed.

Der Erfindung liegt - ausgehend vom Stand der Technik - die Aufgabe zugrunde, ein Verfahren vorzuschlagen, mit welchem auch komplizierte Konfigurationen eines Strukturbauteils aus mit Aluminium beschichteten Borstählen für den Fahrzeugbau bereit gestellt werden können.The object of the invention is based on the prior art to propose a method with which even complicated configurations of a structural component made of boron steel coated with aluminum can be made available for vehicle construction.

Diese Aufgabe wird mit den in den Patentansprüchen 1 bis 3 angegebenen Merkmalen gelöst.This object is achieved with those specified in claims 1 to 3 Features resolved.

Eine Lösung sieht vor, dass zunächst unter Umgebungstemperatur, das heißt Raumtemperatur, aus einer beispielsweise von einem Coil abgetrennten Platine aus Borstahl ein Strukturbauteil je nach seiner Komplexität in einem Werkzeug oder in mehreren Werkzeugen nacheinander bis in die Nähe seiner Endform vorkonfiguriert wird. Diese Vorverformung kann problemlos erfolgen, da die Platine aus Borstahl nicht beschichtet ist.One solution provides that initially under ambient temperature, that is Room temperature, for example from a board separated from a coil A structural component made of boron steel depending on its complexity in one tool or in several tools one after the other up to the vicinity of its final shape is preconfigured. This pre-deformation can be carried out without any problems since the Boron steel board is not coated.

Hat das Strukturbauteil annähernd seine Endform erreicht, wird es bei einer Temperatur von ca. 650 °C mit Aluminium oder einer Aluminiumlegierung beschichtet. Dies kann beispielsweise im Tauchverfahren durchgeführt werden.If the structural component has almost reached its final shape, it will be at one Temperature of approx. 650 ° C coated with aluminum or an aluminum alloy. This can be done, for example, in the immersion process.

Nach der Beschichtung mit Aluminium oder einer Aluminiumlegierung wird das Strukturbauteil auf eine Temperatur oberhalb der oberen Umwandlungslinie im Z-T-U-Schaubild gebracht, dann in einem Werkzeug in die Endform konfiguriert und dabei gleichzeitig gehärtet. Die Erwärmungstemperatur beträgt etwa 930 °C.After coating with aluminum or an aluminum alloy, it will Structural component to a temperature above the upper conversion line in the Z-T-U diagram brought, then configured into the final shape in one tool and hardened at the same time. The heating temperature is approximately 930 ° C.

Eine zweite Lösungsvariante der Aufgabe sieht vor, dass das, wie vorstehend erläutert, vorkonfigurierte Strukturbauteil auf eine Temperatur oberhalb der oberen Umwandlungslinie im Z-T-U-Schaubild (z.B. 930 °C) gebracht, dann in einer Schmelze bei einer Temperatur ebenfalls oberhalb der oberen Umwandlungslinie im Z-T-U-Schaubild mit Aluminium oder einer Aluminiumle-gierung beschichtet und danach in einem Werkzeug bei gleichzeitiger Härtung in die Endform konfiguriert wird.A second solution variant of the task provides that as above explained, preconfigured structural component to a temperature above the upper conversion line in the Z-T-U diagram (e.g. 930 ° C), then in a melt at a temperature also above the upper conversion line in the Z-T-U diagram with aluminum or an aluminum alloy coated and then in one tool with simultaneous hardening in the Final shape is configured.

Des Weiteren ist es gemäß einer dritten Lösungsvariante möglich, ein vorgeformtes Strukturbauteil in der Aluminiumschmelze selbst auf eine Temperatur oberhalb der oberen Umwandlungslinie im Z-T-U-Schaubild zu bringen (etwa 930 °C) und dann in einem Werkzeug unter gleichzeitiger Härtung in die Endform zu konfigurieren.Furthermore, according to a third solution variant, it is possible to use a preformed one Structural component in the aluminum melt itself at a temperature above the upper conversion line in the Z-T-U diagram (approx 930 ° C) and then in a tool with simultaneous hardening into the final shape to configure.

Der besondere Vorteil, welcher mit den erfindungsgemäßen Maßnahmen verbunden ist, liegt darin, dass jetzt auch Strukturbauteile mit komplizierten Endformen ohne weiteres aus mit Aluminium oder einer Aluminiumlegierung beschichtetem Borstahl hergestellt werden können, ohne dass mit Beschädigungen der Beschichtung während des Umformvorgangs gerechnet werden muss.The particular advantage associated with the measures according to the invention is that structural components with complicated end shapes are now available readily made of coated with aluminum or an aluminum alloy Boron steel can be made without causing damage the coating must be expected during the forming process.

Außerdem lässt die Erfindung es bei allen drei Lösungsvarianten zu, bei Bedarf an die Härtung noch einen Vergütungsvorgang anzuschließen.In addition, the invention allows for all three solution variants, if necessary to connect a hardening process to the hardening.

Claims (3)

Verfahren zur Herstellung eines Strukturbauteils für den Fahrzeugbau, bei welchem zunächst unter Umgebungstemperatur aus einer Platine aus Borstahl ein Strukturbauteil bis in die Nähe seiner Endform vorkonfiguriert wird, worauf das vorgeformte Strukturbauteil mit Aluminium oder einer Aluminiumlegierung beschichtet, dann auf eine Temperatur oberhalb der oberen Umwandlungslinie im Z-T-U-Schaubild gebracht und anschließend bei gleichzeitiger Härtung in einem Werkzeug in die Endform konfiguriert wird.Method for producing a structural component for vehicle construction, at which is initially made from a circuit board at ambient temperature Borstahl pre-configured a structural component close to its final shape is what the preformed structural component with aluminum or an aluminum alloy coated, then to a temperature above the top Conversion line brought in the Z-T-U diagram and then at simultaneous hardening in one tool is configured into the final shape. Verfahren zur Herstellung eines Strukturbauteils für den Fahrzeugbau, bei welchem zunächst unter Umgebungstemperatur aus einer Platine aus Borstahl ein Strukturbauteil bis in die Nähe seiner Endform vorkonfiguriert wird, worauf das vorgeformte Strukturbauteil auf eine Temperatur oberhalb der oberen Umwandlungslinie im Z-T-U-Schaubild gebracht, dann in einer Schmelze bei einer Temperatur oberhalb der oberen Umwandlungslinie im Z-T-U-Schaubild mit Aluminium oder einer Aluminiumlegierung beschichtet und anschließend bei gleichzeitiger Härtung in einem Werkzeug in die Endform konfiguriert wird.Method for producing a structural component for vehicle construction, at which is initially made from a circuit board at ambient temperature Borstahl pre-configured a structural component close to its final shape is what the preformed structural component to a temperature above the upper conversion line in the Z-T-U diagram, then in one Melt at a temperature above the upper conversion line in the Z-T-U diagram coated with aluminum or an aluminum alloy and then with simultaneous hardening in one tool Final shape is configured. Verfahren zur Herstellung eines Strukturbauteils für den Fahrzeugbau, bei welchem zunächst unter Umgebungstemperatur aus einer Platine aus Borstahl ein Strukturbauteil bis in die Nähe seiner Endform vorkonfiguriert wird, worauf das vorgeformte Strukturbauteil in einer Schmelze aus Aluminium oder einer Aluminiumlegierung auf eine Temperatur oberhalb der oberen Umwandlungslinie im Z-T-U-Schaubild gebracht, in der Schmelze beschichtet und dann bei gleichzeitiger Härtung in einem Werkzeug in die Endform konfiguriert wird.Method for producing a structural component for vehicle construction, at which is initially made from a circuit board at ambient temperature Borstahl pre-configured a structural component close to its final shape is what the preformed structural component in a melt of aluminum or an aluminum alloy to a temperature above the upper one Conversion line brought in the Z-T-U diagram, coated in the melt and then with simultaneous hardening in one tool Final shape is configured.
EP03001498A 2002-02-06 2003-01-23 Method for producing a structural component for vehicles Withdrawn EP1335036A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10204969 2002-02-06
DE10204969 2002-02-06
DE10220323 2002-05-07
DE10220323A DE10220323C1 (en) 2002-02-06 2002-05-07 Method for producing a structural component for vehicle construction

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EP1335036A1 true EP1335036A1 (en) 2003-08-13

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EP03001498A Withdrawn EP1335036A1 (en) 2002-02-06 2003-01-23 Method for producing a structural component for vehicles

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EP (1) EP1335036A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1705257A1 (en) 2005-03-24 2006-09-27 Benteler Automobiltechnik GmbH Armour for vehicle
WO2013000458A3 (en) * 2011-06-30 2013-04-11 Benteler Automobiltechnik Gmbh Method for producing press-hardened shaped components

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7613195B2 (en) * 2003-10-27 2009-11-03 Telefonaktiebolaget L M Ericsson (Publ) Method and system for managing computer networks
DE102007050907A1 (en) * 2007-10-23 2009-04-30 Benteler Automobiltechnik Gmbh Process for producing a hardened sheet metal profile
DE102009056728A1 (en) 2009-12-04 2011-06-09 Benteler Automobiltechnik Gmbh Method for hot forming and hardening sheet metal part with flanges in cooled forming tool, involves inserting heated sheet metal blank in forming tool

Citations (5)

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Publication number Priority date Publication date Assignee Title
FR1391659A (en) * 1961-06-21 1965-03-12 Pompey Acieries A method of manufacturing relatively thin articles of high aluminum content steel or the like
US4070210A (en) * 1975-01-18 1978-01-24 Politechnika Slaska Im. Wincentego Pstrowskiego Method for hot and immersion alumising of compactly formed ferrous alloy products
US4655852A (en) * 1984-11-19 1987-04-07 Rallis Anthony T Method of making aluminized strengthened steel
US4891274A (en) * 1986-02-13 1990-01-02 Nippon Steel Corporation Hot-dip aluminum coated steel sheet having excellent corrosion resistance and heat resistance
EP0535238A1 (en) * 1991-03-13 1993-04-07 Kawasaki Steel Corporation High-strength steel sheet for forming and production thereof

Family Cites Families (5)

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US3962501A (en) * 1972-12-15 1976-06-08 Nippon Steel Corporation Method for coating of corrosion-resistant molten alloy
JPS5852436A (en) * 1981-09-19 1983-03-28 Nippon Steel Corp Production of cold rolled steel plate having excellent press workability and aging characteristic
US5597656A (en) * 1993-04-05 1997-01-28 The Louis Berkman Company Coated metal strip
CA2310335C (en) * 1998-09-29 2009-05-19 Kawasaki Steel Corporation High strength thin steel sheet, high strength galvannealed steel sheet and manufacturing method thereof
FR2807447B1 (en) * 2000-04-07 2002-10-11 Usinor METHOD FOR MAKING A PART WITH VERY HIGH MECHANICAL CHARACTERISTICS, SHAPED BY STAMPING, FROM A STRIP OF LAMINATED AND IN PARTICULAR HOT ROLLED AND COATED STEEL SHEET

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1391659A (en) * 1961-06-21 1965-03-12 Pompey Acieries A method of manufacturing relatively thin articles of high aluminum content steel or the like
US4070210A (en) * 1975-01-18 1978-01-24 Politechnika Slaska Im. Wincentego Pstrowskiego Method for hot and immersion alumising of compactly formed ferrous alloy products
US4655852A (en) * 1984-11-19 1987-04-07 Rallis Anthony T Method of making aluminized strengthened steel
US4891274A (en) * 1986-02-13 1990-01-02 Nippon Steel Corporation Hot-dip aluminum coated steel sheet having excellent corrosion resistance and heat resistance
EP0535238A1 (en) * 1991-03-13 1993-04-07 Kawasaki Steel Corporation High-strength steel sheet for forming and production thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1705257A1 (en) 2005-03-24 2006-09-27 Benteler Automobiltechnik GmbH Armour for vehicle
DE102005014298A1 (en) * 2005-03-24 2006-10-05 Benteler Automobiltechnik Gmbh Armor for a vehicle
DE102005014298B4 (en) * 2005-03-24 2006-11-30 Benteler Automobiltechnik Gmbh Armor for a vehicle
US7357060B2 (en) 2005-03-24 2008-04-15 Benteler Automobiltechnik Gmbh Vehicle armor
WO2013000458A3 (en) * 2011-06-30 2013-04-11 Benteler Automobiltechnik Gmbh Method for producing press-hardened shaped components

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