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EP1297903A1 - Process for manufacturing painted automotive body parts from aluminium alloy - Google Patents

Process for manufacturing painted automotive body parts from aluminium alloy Download PDF

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Publication number
EP1297903A1
EP1297903A1 EP01810950A EP01810950A EP1297903A1 EP 1297903 A1 EP1297903 A1 EP 1297903A1 EP 01810950 A EP01810950 A EP 01810950A EP 01810950 A EP01810950 A EP 01810950A EP 1297903 A1 EP1297903 A1 EP 1297903A1
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EP
European Patent Office
Prior art keywords
cold
auf
body parts
bandes
strip
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
EP01810950A
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German (de)
French (fr)
Other versions
EP1297903B1 (en
EP1297903B8 (en
Inventor
Ehard Saur
Rainer Kossak
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.)
Novelis Inc Canada
Original Assignee
Alcan Technology and Management Ltd
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 Alcan Technology and Management Ltd filed Critical Alcan Technology and Management Ltd
Priority to AT01810950T priority Critical patent/ATE335550T1/en
Priority to DE50110714T priority patent/DE50110714D1/en
Priority to EP01810950A priority patent/EP1297903B8/en
Publication of EP1297903A1 publication Critical patent/EP1297903A1/en
Publication of EP1297903B1 publication Critical patent/EP1297903B1/en
Application granted granted Critical
Publication of EP1297903B8 publication Critical patent/EP1297903B8/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/05—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B05D2202/20—Metallic substrate based on light metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2701/00—Coatings being able to withstand changes in the shape of the substrate or to withstand welding
    • B05D2701/10—Coatings being able to withstand changes in the shape of the substrate or to withstand welding withstanding draw and redraw process, punching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0218—Pretreatment, e.g. heating the substrate

Definitions

  • the invention relates to a method for producing painted automobile body parts from an aluminum alloy with 0.3 to 0.9 wt .-% magnesium and 0.5 to 1.2 wt .-% silicon.
  • body parts of sheet metal first in the final Form and then the finished body part, i. first to paint after the deformation of the sheet to the body part.
  • a baking of the paint is then a baking of the paint at temperatures, which simultaneously lead to an increase in strength in the sheet metal.
  • the invention is based on the object of a simplified process for the preparation painted automotive body parts of an aluminum alloy to create the aforementioned type, which for forming in the painted state suitable is.
  • the essence of the invention lies in the combination of the by cold aging produced heat treatment condition T4 with the following, relatively weak cold forming with a reduction in thickness of max. 18%. This ensures that the softened as a result of solution annealing and therefore tape susceptible to surface damage of all kinds to prevent such damage again sufficient strength having. At the same time, the increase in strength is in the stressed cold-forming area so dimensioned that on the one hand still enough reserve for the forming of the varnished band to the painted automotive body parts remains, on the other hand, the strength in the painted body parts is considerably higher than in the pure state T4.
  • the solution annealing of the rolled to the intermediate thickness band is mandatory in a continuous band-pass annealing furnace.
  • conversion layer here is the known pretreatment of aluminum surfaces such as. Chromating or chromium-free process understood. With the conversion layer becomes the adhesion of the paint layers on the aluminum surface decisively improved.
  • the mentioned painted automobile body parts are for example modules, like roof modules for sun roofs or complete roofs or others Components from the painted strip through a cold forming in the desired shape are brought.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Metal Rolling (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

Ein Verfahren zur Herstellung lackierter Automobil-Karosserieteile aus einer Aluminiumlegierung mit 0,3 bis 0,9 Gew.-% Magnesium und 0,5 bis 1,2 Gew.-% Silizium, umfasst die Schritte

  • Kaltwalzen eines warmgewalzten Bandes in einem oder mehreren Walzstichen auf eine Zwischendicke,
  • Lösungsglühen des auf die Zwischendicke gewalzten Bandes in einem kontinuierlich arbeitenden Banddurchlauf-Glühofen während 10 bis 100 sec bei einer Temperatur von 540 bis 575 °C,
  • Abkühlen des lösungsgeglühten Bandes mit einer Abkühlgeschwindigkeit von 20 bis 300 °C/sec auf 200 °C oder weniger,
  • Kaltauslagern des auf 200 °C oder weniger abgekühlten Bandes zur Erzielung des Wärmebehandlungszustandes T4,
  • Kaltwalzen des kaltausgelagerten Bandes auf Enddicke mit einer Dickenreduktion von 1,5 bis 18 %,
  • Aufbringen einer Konversionsschicht auf das auf Enddicke gewalzte Band,
  • Aufbringen einer oder mehrerer Lackschichten auf das mit der Konversionsschicht versehene Band,
  • Umformen des lackierten Bandes zu den lackierten Automobil-Karosserieteilen.
A method for producing painted aluminum automotive body parts comprising 0.3 to 0.9% by weight of magnesium and 0.5 to 1.2% by weight of silicon comprises the steps
  • Cold rolling a hot rolled strip in one or more rolling passes to an intermediate thickness,
  • Solution heat treatment of the intermediate thickness rolled strip in a continuous band pass annealing furnace for 10 to 100 seconds at a temperature of 540 to 575 ° C,
  • Cooling the solution-annealed strip at a cooling rate of 20 to 300 ° C / sec to 200 ° C or less,
  • Cold aging of the belt cooled to 200 ° C or less to obtain the heat treatment state T4,
  • Cold-rolling the cold-laid strip to final thickness with a thickness reduction of 1.5 to 18%,
  • Applying a conversion layer to the final thickness rolled strip,
  • Applying one or more lacquer layers to the tape provided with the conversion layer,
  • Forming the varnished band to the varnished automotive body parts.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung lackierter Automobil-Karosserieteile aus einer Aluminiumlegierung mit 0,3 bis 0,9 Gew.-% Magnesium und 0,5 bis 1,2 Gew.-% Silizium.The invention relates to a method for producing painted automobile body parts from an aluminum alloy with 0.3 to 0.9 wt .-% magnesium and 0.5 to 1.2 wt .-% silicon.

Bei der Herstellung lackierter Automobil-Karosserieteile aus Aluminiumlegierungen ist allgemein bekannt, Karosserieteile aus Blech zunächst in die endgültige Form zu bringen und das fertige Karosserieteil anschliessend, d.h. erst nach der Umformung des Bleches zum Karosserieteil zu lackieren. In einem oder mehreren Schritten erfolgt sodann ein Einbrennen des Lackes bei Temperaturen, die gleichzeitig zu einem Festigkeitsanstieg im Blech führen.In the production of painted automotive body parts made of aluminum alloys is generally known, body parts of sheet metal first in the final Form and then the finished body part, i. first to paint after the deformation of the sheet to the body part. In one or several steps is then a baking of the paint at temperatures, which simultaneously lead to an increase in strength in the sheet metal.

Der Erfindung liegt die Aufgabe zugrunde, ein vereinfachtes Verfahren zur Herstellung lackierter Automobil-Karosserieteile aus einer Aluminiumlegierung der eingangs erwähnten Art zu schaffen, welches zum Umformen im lackierten Zustand geeignet ist.The invention is based on the object of a simplified process for the preparation painted automotive body parts of an aluminum alloy to create the aforementioned type, which for forming in the painted state suitable is.

Zur erfindungsgemässen Lösung der Aufgabe führen die Verfahrensschritte

  • Kaltwalzen eines warmgewalzten Bandes in einem oder mehreren Walzstichen auf eine Zwischendicke,
  • Lösungsglühen des auf die Zwischendicke gewalzten Bandes in einem kontinuierlich arbeitenden Banddurchlauf-Glühofen während 10 bis 100 sec bei einer Temperatur von 540 bis 575 °C,
  • Abkühlen des lösungsgeglühten Bandes mit einer Abkühlgeschwindigkeit von 20 bis 300 °C/sec auf 200 °C oder weniger,
  • Kaltauslagern des auf 200 °C oder weniger abgekühlten Bandes zur Erzielung des Wärmebehandlungszustandes T4,
  • Kaltwalzen des kaltausgelagerten Bandes auf Enddicke mit einer Dickenreduktion von 1,5 bis 18 %,
  • Aufbringen einer Konversionsschicht auf das auf Enddicke gewalzte Band,
  • Aufbringen einer oder mehrerer Lackschichten auf das mit der Konversionsschicht versehene Band,
  • Umformen des lackierten Bandes zu den lackierten Automobil-Karosserieteilen.
The method steps lead to the inventive solution of the problem
  • Cold rolling a hot rolled strip in one or more rolling passes to an intermediate thickness,
  • Solution heat treatment of the intermediate thickness rolled strip in a continuous band pass annealing furnace for 10 to 100 seconds at a temperature of 540 to 575 ° C,
  • Cooling the solution-annealed strip at a cooling rate of 20 to 300 ° C / sec to 200 ° C or less,
  • Cold aging of the belt cooled to 200 ° C or less to obtain the heat treatment state T4,
  • Cold-rolling the cold-laid strip to final thickness with a thickness reduction of 1.5 to 18%,
  • Applying a conversion layer to the final thickness rolled strip,
  • Applying one or more lacquer layers to the tape provided with the conversion layer,
  • Forming the varnished band to the varnished automotive body parts.

Der Kern der Erfindung liegt in der Kombination des durch die Kaltauslagerung erzeugten Wärmebehandlungszustandes T4 mit der darauf folgenden, verhältnismässig schwachen Kaltumformung mit einer Dickenabnahme von max. 18%. Dadurch wird sichergestellt, dass das infolge des Lösungsglühens weich gewordene und deshalb auf Oberflächenbeschädigungen aller Art anfällige Band zur Verhinderung derartiger Beschädigungen wieder eine ausreichende Festigkeit aufweist. Gleichzeitig ist der Festigkeitsanstieg im beanspruchten Kaltverfomungsbereich derart bemessen, dass einerseits noch genügend Reserve für die Umformung des lackierten Bandes zu den lackierten Automobil-Karosserieteilen verbleibt, anderseits die Festigkeit in den lackierten Karosserieteilen erheblich höher ist als im reinen Zustand T4.The essence of the invention lies in the combination of the by cold aging produced heat treatment condition T4 with the following, relatively weak cold forming with a reduction in thickness of max. 18%. This ensures that the softened as a result of solution annealing and therefore tape susceptible to surface damage of all kinds to prevent such damage again sufficient strength having. At the same time, the increase in strength is in the stressed cold-forming area so dimensioned that on the one hand still enough reserve for the forming of the varnished band to the painted automotive body parts remains, on the other hand, the strength in the painted body parts is considerably higher than in the pure state T4.

Das Lösungsglühen des auf die Zwischendicke gewalzten Bandes erfolgt zwingend in einem kontinuierlich arbeitenden Banddurchlauf-Glühofen.The solution annealing of the rolled to the intermediate thickness band is mandatory in a continuous band-pass annealing furnace.

Unter Konversionsschicht wird hier die bekannte Vorbehandlung von Aluminiumoberflächen wie z.B. Chromatieren oder chromfreie Verfahren verstanden. Mit der Konversionsschicht wird die Haftung der Lackschichten auf der Aluminiumoberfläche entscheidend verbessert.Under conversion layer here is the known pretreatment of aluminum surfaces such as. Chromating or chromium-free process understood. With the conversion layer becomes the adhesion of the paint layers on the aluminum surface decisively improved.

In gewissen Fällen kann es sich als vorteilhaft erweisen, das auf Enddicke gewalzte Band vor dem Aufbringen der Konversionsschicht mit einer Oberflächentextur zu versehen. Bei einer mit dem Texturieren der Oberfläche allenfalls durch einen Prägeschritt verursachten Dickenreduktion wäre die beim Kaltwalzen des kaltausgelagerten Bandes auf Enddicke vorgesehene Dickenabnahme zu berücksichtigen, d.h. die totale Dickenreduktion darf den Maximalwert von 18% nicht überschreiten.In certain cases, it may prove advantageous to roll to final gauge Tape before applying the conversion layer with a surface texture to provide. At one with the texturing of the surface at best Thickness reduction caused by an embossing step would be that during cold rolling of cold-laid strip to final thickness provided thickness decrease to be considered, i. the total thickness reduction may not exceed the maximum value of Do not exceed 18%.

Das Aufbringen einer Oberflächentextur auf das auf Enddicke gewalzte Band erfolgt in zweckmässiger Weise über ein entsprechendes, auf die Oberfläche von Arbeitswalzen aufgebrachtes Rauheitsmuster, welches in einem einzigen Walzvorgang auf das Band übertragen wird. Wie bei jedem Prägevorgang sind die Oberflächentopographien der Arbeitswalze und der damit geprägten Bänder zueinander komplementär, d.h. Spitzen bzw. Erhebungen auf der Walzenoberfläche werden zu Tälern bzw. Vertiefungen in der Bandoberfläche und umgekehrt.Applying a surface texture to the final gauge rolled strip takes place in an expedient manner via a corresponding, on the surface roughness pattern applied by work rolls, which is in a single Rolling is transferred to the belt. As with any embossing process the surface topographies of the work roll and the tapes embossed therewith complementary to each other, i. Tips or elevations on the roll surface become valleys or depressions in the strip surface and vice versa.

Zur Durchführung des erfindungsgemässen Verfahrens geeignete Rauheitsmuster ergeben sich durch Prägen einer Oberflächentextur mit Arbeitswalzen, deren Oberfläche nach den folgenden Verfahren aufgerauht sind:

  • Funkenerodierverfahren (EDT-Electrical Discharge Texturing). Beim EDT-Verfahren wird die Walze längs einer Reihe von Elektroden bei gleichzeitiger axialer Oszillation gedreht und dabei die Oberfläche auf eine vorgewählte Rauhtiefe texturiert. Durch die Entladung elektrischer Energie zwischen der Walzenoberfläche und den über eine dieelektrische Flüssigkeit getrennten Elektroden werden auf der Walzenoberfläche kleine Krater gebildet. Die Rauheit der Walze kann auf bekannte Weise durch eine Reihe von Maschinen-Parametern eingestellt werden. Das Rauheitsmuster ist eine statistische Verteilung von Spitzen und Tälern. Das EDT-Verfahren ermöglicht die Einstellung von Mittenrauhwerten Ra zwischen 0,5 und 2 µm. Mittenrauhwert und Spitzenzahl sind miteinander weitgehend verknüpft. Für das erfindungsgemässe Verfahren besonders geeignet ist eine Oberflächentextur mit niedriger Rauheit und hoher Spitzenzahl.
  • Isomill-Verfahren. Beim Isomill-Verfahren sind in die Oberfläche der Arbeitswalzen in Umfangrichtung und quer dazu in Achsenrichtung oder in einem Winkel von je 45° zur Walzrichtung zur Erzeugung eines im wesentlichen quadratischen Rauheitsmusters Rillen eingraviert.
  • Millfinish-Verfahren. Beim Millfinish-Verfahren sind in die Oberfläche der Arbeitswalzen in Umfangrichtung feine Rillen eingraviert. Bei Übertragung dieses Rauheitsmusters auf das Blech entsteht die Oberfläche "Millfinish".
Roughness patterns suitable for carrying out the method according to the invention are obtained by embossing a surface texture with work rolls whose surface has been roughened by the following methods:
  • Spark EDM (EDT Electrical Discharge Texturing). In the EDT process, the roll is rotated along a series of electrodes with simultaneous axial oscillation, thereby texturing the surface to a preselected roughness. By discharging electrical energy between the roll surface and the electrodes separated by a dielectric liquid, small craters are formed on the roll surface. The roughness of the roll can be adjusted in a known manner by a number of machine parameters. The roughness pattern is a statistical distribution of peaks and valleys. The EDT method allows the adjustment of average roughness values R a between 0.5 and 2 μm. Mean roughness and number of peaks are largely linked. Particularly suitable for the process according to the invention is a surface texture with low roughness and a high number of tips.
  • Isomill method. In the Isomill process grooves are engraved in the surface of the work rolls circumferentially and transversely thereto in the axial direction or at an angle of 45 ° to the rolling direction to produce a substantially square roughness pattern.
  • Millfinish method. In the Millfinish process, fine grooves are circumferentially engraved in the surface of the work rolls. When this roughness pattern is transferred to the sheet, the surface "Millfinish" is created.

Die erwähnten lackierten Automobil-Karosserieteile sind beispielsweise Module, wie Dachmodule für Sonnendächer oder komplette Dächer oder auch andere Komponenten, die aus dem lackierten Band durch eine Kaltumformung in die gewünschte Form gebracht werden.The mentioned painted automobile body parts are for example modules, like roof modules for sun roofs or complete roofs or others Components from the painted strip through a cold forming in the desired shape are brought.

Claims (8)

Verfahren zur Herstellung lackierter Automobil-Karosserieteile aus einer Aluminiumlegierung mit 0,3 bis 0,9 Gew.-% Magnesium und 0,5 bis 1,2 Gew.-% Silizium, umfassend die Schritte Kaltwalzen eines warmgewalzten Bandes in einem oder mehreren Walzstichen auf eine Zwischendicke, Lösungsglühen des auf die Zwischendicke gewalzten Bandes in einem kontinuierlich arbeitenden Banddurchlauf-Glühofen während 10 bis 100 sec bei einer Temperatur von 540 bis 575 °C, Abkühlen des lösungsgeglühten Bandes mit einer Abkühlgeschwindigkeit von 20 bis 300 °C/sec auf 200 °C oder weniger, Kaltauslagern des auf 200 °C oder weniger abgekühlten Bandes zur Erzielung des Wärmebehandlungszustandes T4, Kaltwalzen des kaltausgelagerten Bandes auf Enddicke mit einer Dickenreduktion von 1,5 bis 18 %, Aufbringen einer Konversionsschicht auf das auf Enddicke gewalzte Band, Aufbringen einer oder mehrerer Lackschichten auf das mit der Konversionsschicht versehene Band, Umformen des lackierten Bandes zu den lackierten Automobil-Karosserieteilen. A method for producing painted aluminum automotive body parts comprising 0.3 to 0.9% by weight of magnesium and 0.5 to 1.2% by weight of silicon, comprising the steps Cold rolling a hot rolled strip in one or more rolling passes to an intermediate thickness, Solution heat treatment of the intermediate thickness rolled strip in a continuous band pass annealing furnace for 10 to 100 seconds at a temperature of 540 to 575 ° C, Cooling the solution-annealed strip at a cooling rate of 20 to 300 ° C / sec to 200 ° C or less, Cold aging of the belt cooled to 200 ° C or less to obtain the heat treatment state T4, Cold-rolling the cold-laid strip to final thickness with a thickness reduction of 1.5 to 18%, Applying a conversion layer to the final thickness rolled strip, Applying one or more lacquer layers to the tape provided with the conversion layer, Forming the varnished band to the varnished automotive body parts. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das auf Enddicke kaltgewalzte Band als letzten Schritt das Aufbringen einer Oberflächentextur beinhaltet.A method according to claim 1, characterized in that the final cold-rolled strip includes as the last step the application of a surface texture. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Oberflächentextur über ein auf die Oberfläche von Arbeitswalzen aufgebrachtes Rauheitsmuster in einem einzigen Walzvorgang auf das Band übertragen wird. A method according to claim 2, characterized in that the surface texture is transferred to the belt via a roughness pattern applied to the surface of work rolls in a single rolling operation. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass die Oberfläche der Arbeitswalzen nach dem Funkenerodierverfahren (EDT-Electrical Discharge Texturing) aufgerauht sind.A method according to claim 3, characterized in that the surface of the work rolls are roughened by the EDM (EDM-Electrical Discharge Texturing). Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass in die Oberfläche der Arbeitswalzen in Umfangrichtung und quer dazu in Achsenrichtung oder in einem Winkel von je 45° zur Walzrichtung zur Erzeugung eines im wesentlichen quadratischen Rauheitsmusters (Isomill) Rillen eingraviert sind.A method according to claim 3, characterized in that in the surface of the work rolls in the circumferential direction and transverse thereto in the axial direction or at an angle of 45 ° to the rolling direction to produce a substantially square roughness pattern (Isomill) grooves are engraved. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass in die Oberfläche der Arbeitswalzen in Umfangrichtung zur Erzeugung eines Millfinish-Musters Rillen eingraviert sind.A method according to claim 3, characterized in that in the surface of the work rolls in the circumferential direction to produce a Millfinish pattern grooves are engraved. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass aus dem lackierten Band zugeschnittene Bleche durch Kaltumformen zu den lackierten Automobil-Karosserieteilen geformt werden.Method according to one of claims 1 to 6, characterized in that cut from the painted strip sheets are formed by cold forming to the painted automotive body parts. Verfahren nach einem der Ansprüche 1 bis 7, wobei die lackierten Automobil-Karosserieteile als Module, wie Dachmodule für Sonnendächer oder komplette Dächer verwendet werden.Method according to one of claims 1 to 7, wherein the painted automotive body parts as modules, such as roof modules for sun roofs or complete roofs are used.
EP01810950A 2001-09-28 2001-09-28 Process for manufacturing painted automotive body parts from aluminium alloy Expired - Lifetime EP1297903B8 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT01810950T ATE335550T1 (en) 2001-09-28 2001-09-28 METHOD FOR PRODUCING PAINTED AUTOMOBILE BODY PARTS FROM AN ALUMINUM ALLOY
DE50110714T DE50110714D1 (en) 2001-09-28 2001-09-28 Method for producing painted automotive body parts from an aluminum alloy
EP01810950A EP1297903B8 (en) 2001-09-28 2001-09-28 Process for manufacturing painted automotive body parts from aluminium alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01810950A EP1297903B8 (en) 2001-09-28 2001-09-28 Process for manufacturing painted automotive body parts from aluminium alloy

Publications (3)

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EP1297903A1 true EP1297903A1 (en) 2003-04-02
EP1297903B1 EP1297903B1 (en) 2006-08-09
EP1297903B8 EP1297903B8 (en) 2007-06-13

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AT (1) ATE335550T1 (en)
DE (1) DE50110714D1 (en)

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US11213870B2 (en) 2017-07-21 2022-01-04 Novelis Inc. Micro-textured surfaces via low pressure rolling
CN115011848A (en) * 2022-05-11 2022-09-06 北京理工大学 A kind of high-purity aluminum alloy wire and preparation method thereof

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11213870B2 (en) 2017-07-21 2022-01-04 Novelis Inc. Micro-textured surfaces via low pressure rolling
US11426777B2 (en) 2017-07-21 2022-08-30 Noveliss Inc. Systems and methods for controlling surface texturing of a metal substrate with low pressure rolling
US11638941B2 (en) 2017-07-21 2023-05-02 Novelis Inc. Systems and methods for controlling flatness of a metal substrate with low pressure rolling
CN115011848A (en) * 2022-05-11 2022-09-06 北京理工大学 A kind of high-purity aluminum alloy wire and preparation method thereof

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