EP2789707B1 - Procédé de fabrication d'un composant de châssis de véhicule automobile - Google Patents

Procédé de fabrication d'un composant de châssis de véhicule automobile Download PDF

Info

Publication number
EP2789707B1
EP2789707B1 EP14154800.8A EP14154800A EP2789707B1 EP 2789707 B1 EP2789707 B1 EP 2789707B1 EP 14154800 A EP14154800 A EP 14154800A EP 2789707 B1 EP2789707 B1 EP 2789707B1
Authority
EP
European Patent Office
Prior art keywords
heat treatment
chassis component
temperature
minutes
treatment stage
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.)
Active
Application number
EP14154800.8A
Other languages
German (de)
English (en)
Other versions
EP2789707A1 (fr
Inventor
Anders Artelius
Yngve Langsrud
Lars Lodgaard
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
Application filed by Benteler Automobiltechnik GmbH filed Critical Benteler Automobiltechnik GmbH
Publication of EP2789707A1 publication Critical patent/EP2789707A1/fr
Application granted granted Critical
Publication of EP2789707B1 publication Critical patent/EP2789707B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
    • 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

Definitions

  • the invention relates to a method for producing a motor vehicle chassis component, in particular a spring link or a guide link, in which a semifinished product made of light metal or a light metal alloy, in particular of a AIMgSi wrought alloy is formed in one or more shaping processing steps to the chassis component.
  • Chassis components made of light metal or a light metal alloy are used both for production-related aspects and because of the energy absorption capacity and for reasons of weight reduction to reduce fuel consumption and reduce emissions.
  • Intergranular corrosion is a specific manifestation of selective corrosion that can occur in most alloys under appropriate conditions and along the grain boundaries.
  • intergranular corrosion The tendency of a material to intergranular corrosion is primarily a consequence of the alloy composition and manufacturing conditions. It is known that the intercrystalline corrosion sensitivity is promoted by insufficient quenching rates after solution annealing, e.g. B. when cooling on the extruder or in thick material cross-sections.
  • the occurrence of intergranular corrosion can be alleviated by permanent surface protection measures, such as anodization, coating or cathodic protection.
  • permanent surface protection measures such as anodization, coating or cathodic protection.
  • DE 695 02 508 T2 describes a method for producing articles of AlSiMgCu alloy and such a rolled or extruded article intended to have improved intercrystalline corrosion resistance.
  • From the CH 500 287 A discloses a process for heat treating an aluminum-base alloy, the alloy further containing copper, magnesium and zinc.
  • the alloy is heated to a temperature between 460 ° C and 477 ° C for a time sufficient for the components of the alloy to enter solid solution.
  • the alloy is then quenched with water and the alloy is then aged by first maintaining it at a temperature between 96 ° C and 107 ° C for 6 to 10 hours and then at a temperature between 149 ° C and 193 ° for 2 to 48 hours C heated.
  • the CH 218 418 A discloses a method of manufacturing an aluminum alloy article.
  • the alloy is subjected to a heat treatment increasing the strength properties and the resistance to intergranular corrosion and stress corrosion.
  • the alloy should be tempered after homogenization at temperatures below 150 ° C.
  • a heat treatment process for an aluminum alloy is known.
  • a solution annealing treatment is carried out at a temperature between 460 ° C and 477 ° C.
  • the solution-annealed alloy is quenched.
  • a first heat treatment step between 96 ° C and 107 ° C for 2 to 48 hours, followed by a second heat treatment step between 149 ° C and 193 ° C for a period of several hours.
  • the EP 1 232 029 B1 describes a guide or connecting link for use in wheel suspensions of motor vehicles.
  • the method involves making the handlebar from a single piece of closed hollow section of high strength extruded aluminum.
  • the handlebar is produced from a profile that initially has a rectangular cross-section with adjacent walls of different thickness, the forming of the profile being done only with mechanical cold processing involving stretch bending, pressing, cutting and punching.
  • the cold process should avoid heating, forging or welding.
  • High-strength aluminum alloys in particular aluminum alloys of the alloy type AlMgSi (series 6000), are used in motor vehicle construction. They are characterized by high strength and can therefore contribute mainly to the weight reduction of components that are exposed to great forces or loads.
  • a problem with these aluminum alloys is that they tend to intergranular corrosion after long-term heat influence. This intergranular corrosion leads, as already mentioned above, to notch effects in loaded components.
  • the chassis of a motor vehicle includes in particular suspension, suspension, steering but also the brakes. This includes axle components such as axle frames and axle stools. These components are exposed to high static and dynamic forces. Also, chassis components are often welded structures. The heat influence associated with a welding process offers further points of attack for the formation of intercrystalline corrosion.
  • the semi-finished products consisting of the light metal alloys are usually subjected to several forming steps, efforts are being made to expand the shaping limits of the semi-finished products, for example the light metal sheets, tubes or profiles. For this reason, forming processes increasingly use forming processes or deep-drawing processes with heated tools, or the semi-finished products are brought to an elevated forming temperature.
  • forming processes increasingly use forming processes or deep-drawing processes with heated tools, or the semi-finished products are brought to an elevated forming temperature.
  • the degree of deformation can be significantly increase the light metal semi-finished products.
  • softening also takes place.
  • the intercrystalline corrosion resistance decreases.
  • the object of the invention based on the state of the art, is to disclose a method for producing motor vehicle chassis components made of light metal or light metal alloys, which have a longer service life expectation and in particular possess improved intercrystalline corrosion resistance.
  • the production of a motor vehicle chassis component is based on a semi-finished light metal or a light metal alloy.
  • the semifinished product is formed in one, but especially in several shaping processing steps to the chassis component.
  • the forming processing steps include both cutting operations and forming processes, in particular deep drawing operations and / or pressing operations.
  • the chassis component is subjected after the endformcreateden processing step of at least two-stage heat treatment, wherein the first heat treatment stage is part of a washing process of the chassis component and the temperature in the first heat treatment stage between 70 ° C and 90 ° C.
  • the second heat treatment stage is part of a drying process of the chassis component, wherein the temperature in the second heat treatment stage between 130 ° C and 150 ° C.
  • An essential aspect of the invention is the heat treatment after the shaping of the chassis component. It was found that by the inventive Temperature regime can increase the intercrystalline corrosion resistance of the vehicle chassis component significantly. By the heat treatment according to the invention, the intercrystalline susceptibility to corrosion can be avoided, but at least greatly reduced. Samples and their micrographs examined after corrosion tests have shown intercrystalline corrosion attacks below the grain boundaries. The samples were to be evaluated as "without IK (without intergranular corrosion)". The maximum depth of intercrystalline corrosion in microns was less than 50 ⁇ m.
  • the heat treatment after the final shaping takes place within subsequent treatment processes on the molded component.
  • the heat treatment of the first heat treatment stage is part of a washing process in which the chassis component is washed and rinsed.
  • the heat treatment in the second heat treatment stage is part of a drying process in which the chassis component is subjected to drying after washing and rinsing.
  • the drying is carried out by charging the mold component with hot gas.
  • hot air is used for drying.
  • An essential aspect of the invention accordingly provides that the heat treatment takes place after completion of the mold component within conventional treatment operations, but with the modified temperature and time regime according to the invention.
  • the method according to the invention makes it possible to produce heavy-duty motor vehicle chassis components with very good intercrystalline corrosion resistance and correspondingly increased service life expectancy.
  • an extruded profile is used as semifinished product.
  • the temperature and time regime according to the invention avoids the susceptibility to intergranular corrosion or greatly reduces it.
  • the two-stage Heat treatment after the forming process of the semifinished product and the production of the chassis component is to be regarded as essential for the high intercrystalline corrosion resistance.
  • the temperature in the first heat treatment stage is between 70 ° C and 90 ° C, in particular the temperature of the first heat treatment stage is 80 ° C ⁇ 5 ° C.
  • the second heat treatment stage provides a temperature in a range between 130 ° C and 150 ° C , Preferably, the temperature in the second heat treatment step is 140 ° C ⁇ 5 ° C.
  • the treatment time or duration of the first heat treatment stage is between 4 minutes (min.) And 12 minutes. Particularly preferably, the treatment time in the first heat treatment stage is 6 min. ⁇ 2 min.
  • the treatment time in the second heat treatment step is 8 minutes to 20 minutes.
  • the semifinished product is heat treated before being subjected to the shaping operations.
  • the semifinished product is subjected to an annealing treatment at temperatures between 500 ° C and 560 ° C, preferably between 520 ° C and 540 ° C.
  • a solution annealing or a homogenization of the light metal alloy takes place.
  • the semifinished product Before the first shaping processing step, ie after the annealing treatment, the semifinished product is cooled. The quenching after the annealing treatment is such that a uniform distribution of the alloying elements is maintained. Thereafter, the semi-finished product is fed to the forming process with the shaping processing steps.
  • the forming process is designed in particular multi-stage. In this case, preferably a molding shape of the semifinished product up to the mold component.
  • the shaping processing steps may also include a final deburring operation.
  • the shaping processing steps take place at room temperature.
  • the shaping processing steps can take place at a temperature of the semifinished product between 20 ° C and 75 ° C.
  • aging in particular hot aging of the motor vehicle mold components, can be carried out.
  • different material states of the light metal alloy of the motor vehicle chassis component can be adjusted.
  • the semifinished product 1 consists of an AIMgSi alloy (series 6000). This alloy is characterized by its very good pressability, good deep-drawability and good weathering and corrosion resistance. In addition, it is easily weldable.
  • the semifinished product 1 is subjected to a heat treatment in a heat treatment plant 2.
  • the heat treatment plant 2 may have several, also differently heated and / or tempered furnace zones 3, 4, 5.
  • solution annealing is carried out at a temperature between 500 ° C and 560 ° C, preferably at an average of 520 ° C.
  • the duration of the solution annealing is chosen so that any unwanted excretions, especially of Mg2Si, of Previous heat treatments, for example, from the continuous casting process may still be present, are solved with certainty in alpha ( ⁇ ) mixed crystal.
  • a duration of about 20 minutes is provided for this first step of the heat treatment for solution annealing a duration of about 20 minutes is provided.
  • the semifinished product 1 is quenched to room temperature.
  • the homogeneous alpha ( ⁇ ) mixed crystal is fixed at room temperature.
  • the quenching process takes place in a cooling unit 6, which may be an immersion cooling.
  • the semifinished product 1 is then trimmed in a cutting unit 7, pre-fabricated by cutting technology and / or preconfigured by stamping technology. Thereafter, the semifinished product 1 is subjected to forming processing steps in a plurality of pressing stations 8, 9 and finally shaped to form the chassis component 10. In the figure, two pressing stations 8, 9 are shown.
  • the shaping processing may in principle include only one, but in particular also more than two processing stations.
  • the forming temperature T u at which the deformation of the semifinished product 1 takes place up to the final shaping of the chassis component 10, is at room temperature.
  • the forming temperature T u can be between 20 ° C and 75 ° C.
  • handling units such as robots or conveyors are connected between the individual stations shown in the figure.
  • an intermediate storage can take place.
  • the chassis component 10 is subjected to a two-stage heat treatment.
  • the first heat treatment stage is part of a washing process of the chassis component 10.
  • the chassis component 10 is supplied to a washing station 11, in which the chassis component 10 is washed and rinsed off.
  • the chassis member 10 is heated to a temperature between 70 ° C and 90 ° C, in particular to a temperature T1 of 80 ° C ⁇ 5 ° C, heated.
  • the treatment time D1 in the first heat treatment stage is between 4 minutes and 12 minutes, preferably 6 minutes ⁇ 2 minutes. This means that the chassis component 10 is kept at the temperature T1 for the duration of the treatment time D1.
  • the heat treated chassis member 10 is fed to a second heat treatment stage.
  • the second heat treatment stage is integrated in a drying process in a drying station 12.
  • the chassis component 10 is by applying dried with hot air and heated in this case to a temperature T2 between 130 ° C and 140 ° C.
  • the treatment time or duration D2 in the second heat treatment stage is 8 minutes to 20 minutes, preferably the treatment time D2 is 10 minutes, + 6 minutes, - 1 minutes.
  • the chassis components 10 are removed from the drying station 12 by means of a handling robot 13 and fed to the further treatment or processing.
  • Part of a subsequent treatment operation may be a aging, in particular a thermal aging, at a temperature of 140 ° C ⁇ 20 ° C.
  • the produced chassis component 10 is in particular a spring link or a guide link for use in the chassis of a motor vehicle.
  • the chassis component 10 is characterized by a component-oriented strength and load capacity.
  • the chassis component 10 is less prone to corrosion, especially against intergranular corrosion and has a long life expectancy.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Vehicle Body Suspensions (AREA)

Claims (12)

  1. Procédé de fabrication d'un élément de châssis de véhicule automobile, dans lequel un demi-produit (1) en métal léger ou en un alliage léger est formé pour obtenir l'élément de châssis (10) en une ou plusieurs étapes d'usinage façonnantes et dans lequel l'élément de châssis (10) est soumis après l'étape d'usinage façonnante terminale à un traitement thermique au moins en deux étapes, caractérisé en ce que la première étape de traitement thermique fait partie d'une opération de lavage de l'élément de châssis (10) et la température T1 dans la première étape de traitement thermique est comprise entre 70 °C et 90 °C et en ce que la deuxième étape de traitement thermique fait partie d'une opération de séchage de l'élément de châssis (10) et la température T2 dans la deuxième étape de traitement thermique est comprise entre 130 °C et 150 °C.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on utilise comme demi-produit (1) un profilé filé.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que, dans la première étape de traitement thermique, la température T1 est égale à 80 °C ± 5 °C.
  4. Procédé selon au moins l'une des revendications 1 à 3, caractérisé en ce que, dans la deuxième étape de traitement thermique, la température T2 est égale à 140 °C ± 5 °C.
  5. Procédé selon au moins l'une des revendications 1 à 4, caractérisé en ce que, dans la première étape de traitement thermique, le temps de traitement D1 est compris entre 4 minutes et 12 minutes ou est égal à 6 minutes ± 2 minutes.
  6. Procédé selon au moins l'une des revendications 1 à 5, caractérisé en ce que, dans la deuxième étape de traitement thermique, le temps de traitement D2 est compris entre 8 minutes et 20 minutes ou est égal à 10 minutes +6 minutes / -1 minute.
  7. Procédé selon la revendication 1, caractérisé en ce que l'opération de séchage s'effectue en exposant l'élément de châssis (10) à un gaz chaud ou à un air chaud.
  8. Procédé selon au moins l'une des revendications 1 à 7, caractérisé en ce que, avant la première étape d'usinage façonnante, le demi-produit (1) est soumis à un traitement de recuit à une température Th comprise entre 500 °C et 560 °C.
  9. Procédé selon la revendication 8, caractérisé en ce que, après le traitement de recuit et avant la première étape d'usinage façonnante, le demi-produit (1) est refroidi.
  10. Procédé selon au moins l'une des revendications 1 à 9, caractérisé en ce que les étapes d'usinage façonnantes s'effectuent à une température TU du demi-produit (1) comprise entre 20 °C et 75 °C.
  11. Procédé selon au moins l'une des revendications précédentes, caractérisé en ce que l'élément de châssis de véhicule automobile (10) est un bras de ressort ou un bras de guidage.
  12. Procédé selon au moins l'une des revendications précédentes, caractérisé en ce que l'alliage léger est un alliage corroyé AlMgSi.
EP14154800.8A 2013-04-08 2014-02-12 Procédé de fabrication d'un composant de châssis de véhicule automobile Active EP2789707B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013103469.1A DE102013103469A1 (de) 2013-04-08 2013-04-08 Verfahren zur Herstellung eines Kraftfahrzeug-Fahrwerksbauteils

Publications (2)

Publication Number Publication Date
EP2789707A1 EP2789707A1 (fr) 2014-10-15
EP2789707B1 true EP2789707B1 (fr) 2017-08-09

Family

ID=50097591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14154800.8A Active EP2789707B1 (fr) 2013-04-08 2014-02-12 Procédé de fabrication d'un composant de châssis de véhicule automobile

Country Status (2)

Country Link
EP (1) EP2789707B1 (fr)
DE (1) DE102013103469A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017117675B4 (de) 2017-08-03 2022-07-28 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Kraftfahrzeugbauteils aus einer 6000er Aluminiumlegierung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH500287A (de) * 1964-11-25 1970-12-15 Harvey Aluminum Inc Verfahren zur Wärmebehandlung einer Legierung auf Aluminiumgrundlage
DE69502508T2 (de) * 1994-10-25 1998-09-10 Pechiney Rhenalu VERFAHREN ZUR HERSTELLUNG VON GEGENSTÄDEN AUS AlSiMgCu-LEGIERUNG MIT VERBESSERTEN INTERKRISTALLINKORROSIONSWIEDERSTAND

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH218418A (de) * 1937-07-24 1941-12-15 Ig Farbenindustrie Ag Verfahren zur Herstellung eines Gegenstandes aus Aluminiumlegierung.
NO314928B1 (no) * 1999-11-03 2003-06-16 Raufoss Tech As B¶rearm
AT408763B (de) * 2000-09-14 2002-03-25 Aluminium Ranshofen Walzwerk G Ausscheidungshärten einer aluminiumlegierung
WO2006005573A1 (fr) * 2004-07-09 2006-01-19 Corus Aluminium Nv Procede de production d'une matiere sous forme de feuille en alliage d'aluminium a reponse amelioree au durcissement par etuvage
DE102009037928A1 (de) 2009-08-19 2011-02-24 Alcan Technology & Management Ltd. Form- und/oder Strukturteil aus Aluminium oder einer Aluminiumlegierung und Verfahren zu deren Oberflächenschutz
JP5431233B2 (ja) * 2010-03-31 2014-03-05 株式会社神戸製鋼所 アルミニウム合金鍛造材およびその製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH500287A (de) * 1964-11-25 1970-12-15 Harvey Aluminum Inc Verfahren zur Wärmebehandlung einer Legierung auf Aluminiumgrundlage
DE69502508T2 (de) * 1994-10-25 1998-09-10 Pechiney Rhenalu VERFAHREN ZUR HERSTELLUNG VON GEGENSTÄDEN AUS AlSiMgCu-LEGIERUNG MIT VERBESSERTEN INTERKRISTALLINKORROSIONSWIEDERSTAND

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
S N SHOUKRY ET AL: "Proceedings of the 23 rd CANCAM LIGHTWEIGHT DESIGN CONCEPTS FOR CHASSIS OF LIGHT DUTY VEHICLES", PROCEEDINGS OF A MEETING HELD 5-9 JUNE 2011, VANCOUVER, BC, CANADA., 9 June 2011 (2011-06-09), XP055291591, ISBN: 978-1-61839-177-3, Retrieved from the Internet <URL:http://www.sites.mech.ubc.ca/~ial/CANCAM/CANCAM/cd-final/documents/0004.pdf> [retrieved on 20160727] *

Also Published As

Publication number Publication date
DE102013103469A1 (de) 2014-10-09
EP2789707A1 (fr) 2014-10-15

Similar Documents

Publication Publication Date Title
EP2581218B1 (fr) Procédé de fabrication d&#39;un composant structurel d&#39;automobile de tôle d&#39;alliage d&#39;aluminium AA7xxx-série
DE102008033027B4 (de) Verfahren zur Erhöhung von Festigkeit und Verformbarkeit von ausscheidungshärtbaren Werkstoffen
DE112015000385B4 (de) Halbwarmumformung von kaltverfestigten Blechlegierungen
EP3332045B1 (fr) Choc traitement thermique d&#39;articles en alliage d&#39;aluminium
EP0902842B2 (fr) Methode de production d&#39;un element de construction
DE112011103667T5 (de) Automobil-Formteil aus einem Aluminiumlegierungsprodukt und Verfahren zu seiner Herstellung
EP2415895B2 (fr) Méthode pour la production d&#39;une pièce de formage en tôle pour véhicule automobile
DE112011103669T5 (de) Verfahren zur Herstellung eines Automobil-Strukturteils aus einer gewalzten AIZn-Legierung
CN111004950B (zh) 2000铝合金型材及其制造方法
EP2415882B1 (fr) Procédé de fabrication d&#39;une pièce de formage en tôle à partir d&#39;un alliage en aluminium non durcissable durci par laminage
DE102009008282A1 (de) Verfahren zur Herstellung eines Blechformteils aus einer walzharten, nicht aushärtbaren Aluminiumlegierung
WO2015036150A1 (fr) Procédé de fabrication d&#39;un élément de construction en acier doté d&#39;un revêtement de protection anticorrosion métallique
DE112009000981T5 (de) Verfahren zur Herstellung eines Bauteils aus einer Aluminiumlegierung
EP3538682B1 (fr) Feuille métallique en alliage à base de magnésium et procédé de fabrication d&#39;une feuille métallique et d&#39;un élément constitué de cette feuille métallique
DE60006670T2 (de) Wärmebehandlung für geformte produkte aus aluminium-legierung
DE69026658T2 (de) Verfahren zur Herstellung von Titan und Titanlegierungen mit einer feinen gleichachsigen Mikrostruktur
EP2789707B1 (fr) Procédé de fabrication d&#39;un composant de châssis de véhicule automobile
DE2242235B2 (de) Superplastische Aluminiumlegierung
DE102012010696B4 (de) Wärmebehandlungsverfahren für eine Vielzahl von Leichtmetallbauteilen
DE102013018744A1 (de) Verfahren zur Herstellung eines Bauteils für ein Kraftfahrzeug
DE19909519B4 (de) Verfahren zur Herstellung eines Leichtmetallrades
DE102016117474A1 (de) Karosseriebauteil mit reduzierter Rissneigung und Verfahren zur Herstellung
DE10003791A1 (de) Verfahren zur Herstellung von Felgen
DE10051525A1 (de) Verfahren zur Herstellung von Blechen, insbesondere Karosserieblechen
EP2924135B1 (fr) Procédé pour la fabrication d&#39;une bande d&#39;un alliage d&#39;aluminium à fermeté moyenne hautement déformable pour la fabrication de produits semi-finis ou de composants de véhicules automobiles

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140212

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

R17P Request for examination filed (corrected)

Effective date: 20141028

17Q First examination report despatched

Effective date: 20160810

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502014004873

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: C22C0021080000

Ipc: C22F0001040000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: C22C 21/08 20060101ALI20170317BHEP

Ipc: C22F 1/05 20060101ALI20170317BHEP

Ipc: C22F 1/04 20060101AFI20170317BHEP

INTG Intention to grant announced

Effective date: 20170425

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 916938

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170815

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502014004873

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170809

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171109

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171109

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171110

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171209

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502014004873

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20180511

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180212

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180228

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180212

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180228

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20181031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180212

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180228

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 916938

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20140212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170809

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240227

Year of fee payment: 11