EP1287925B1 - Roue en alliage léger - Google Patents

Roue en alliage léger Download PDF

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Publication number
EP1287925B1
EP1287925B1 EP20020011998 EP02011998A EP1287925B1 EP 1287925 B1 EP1287925 B1 EP 1287925B1 EP 20020011998 EP20020011998 EP 20020011998 EP 02011998 A EP02011998 A EP 02011998A EP 1287925 B1 EP1287925 B1 EP 1287925B1
Authority
EP
European Patent Office
Prior art keywords
rim
metal alloy
strength
wheel flange
part areas
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.)
Expired - Fee Related
Application number
EP20020011998
Other languages
German (de)
English (en)
Other versions
EP1287925A2 (fr
EP1287925A3 (fr
Inventor
Andras Dr. Beste
Sylvia Droll
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.)
Audi AG
Original Assignee
Audi AG
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 Audi AG filed Critical Audi AG
Publication of EP1287925A2 publication Critical patent/EP1287925A2/fr
Publication of EP1287925A3 publication Critical patent/EP1287925A3/fr
Application granted granted Critical
Publication of EP1287925B1 publication Critical patent/EP1287925B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/30—Making other particular articles wheels or the like wheel rims
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like

Definitions

  • the invention relates to a light metal rim made of an aluminum alloy, in particular for motor vehicles, according to the preamble of claim 1.
  • a method for such a light metal rim is for example the DE 44 42 465 A1 Removable, in which a preferably produced by casting blank is transformed under heat in the extrusion process to form a rim.
  • the rim material has aluminum as an essential component and as secondary components silicon, magnesium, etc.
  • the object of the invention is to provide a light metal rim of the generic type, with the different load cases of the light metal rim in motor vehicles improved account is taken.
  • the resulting forces, which are introduced into the Radauhssenung the motor vehicle, are essentially caused by the accelerations of the unsprung masses.
  • the acceleration itself in turn depends on the rigidity of the rim at the load introduction points.
  • the outer horn formed on account of its proximity to the rim bowl generates higher forces on impact than the less rigid rim inner horn, which adjoins the rim bed located therebetween. Due to the rim geometry lower rigidity of the inner horn this tends to be more pronounced plastic deformation.
  • the proposal according to the invention thus provides a compensation in which the less rigid portion of the rim with the rim base and the inner horn is raised to a high strength level by a T6 heat treatment, while the rigid outer horn portion with at least the radially outer portion of the rim bowl with a T4 or T5 treatment is maintained at a lower solid level.
  • the radially inner hub region of the rim bowl can have either T6 or T4 / T5 depending on the other criteria.
  • the different heat treatment of the rim can be carried out adapted to the alloy material used and to the manufacturing method used in a different hot aging or after the aging of hot additional solution heat treatment or a different cooling rate when quenching from the solution annealing temperature for strength reduction of portions of the rim.
  • the half-illustrated rim 10 made of an AL alloy is composed essentially of a disc-shaped rim 12, an adjoining annular outer horn 14, a likewise annular inner horn 16 and a rim bed located therebetween 18.
  • the rim 10 is in a known manner on the Material stronger radially inner hub portion 20 of the rim bowl 12 attached to a receiving flange of the wheel bearing of the motor vehicle and carries a tire, not shown.
  • the rim 10 may, for example, as in the aforementioned DE 44 42 465 A1 be prepared, for. B. by extrusion or forging a precast blank or by using an AL-wrought alloy.
  • the rim 10 is subjected in a known manner to a solution annealing at a temperature of about 550 ° C and quenched.
  • the inner horn 16 and the rim base 18 are hardened according to the marked area 22 to the state T6 or hot outsourced while at the same time the portion 24 with the outer horn 14 and the radially outer portion 26 of the rim 12 by heat removal or cooling to a Temperature of about 100 ° C and thus only assumes the state T4 or T5 with a correspondingly reduced strength.
  • the radially inner heat treatment region 28 or the hub region 20 of the rim 10 can have strengths according to T4, T5 or T6 with reduced cooling or possibly even the same thermal aging temperature of 200 ° C., depending on the load profile and geometry of the corresponding light metal rim.
  • the strength reduced area 24 and / or 28 can also be prepared in which the rim 10 after the conventional heat aging in the corresponding areas again solution-annealed and quenched. It is understood that apart from z. B. a favorable transition region 30 between the rim base 18 and the outer horn 14, the set strength of the adjacent areas is not reduced, z. B. by appropriate cooling measures.
  • the reduced-strength region 24 and or 28 can also be produced, in which the rim 10 is cooled slowly in a controlled manner after the solution annealing in the quenching process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Articles (AREA)

Claims (3)

  1. Jante en métal léger (10) en un alliage d'aluminium avec un rebord de jante (14, 16) extérieur et intérieur, une clé de jante (12) et une embase de jante (18), la jante étant dotée de différentes zones partielles qui présentent différentes résistances dépendant d'un traitement thermique, caractérisée en ce que
    - le rebord de jante (14) extérieur et/ou la clé de jante (12) sont des zones partielles (24, 28) qui présentent une résistance plus faible et
    - le rebord de jante (16) intérieur et l'embase de jante (18) sont des zones partielles (22) qui présentent une résistance plus élevée.
  2. Jante en métal léger (10) selon la revendication 1, caractérisée en ce que
    les différentes résistances sont générées lors de la fabrication de la jante en métal léger (10) par des vieillissements thermiques commandés différemment des zones partielles.
  3. Jante en métal léger selon l'une quelconque des revendications précédentes, caractérisée en ce que
    le rebord de jante (16) intérieur et l'embase de jante (18) présentent un état T6 et le rebord de jante (14) extérieur et la clé de jante (12) présentent au moins partiellement un état T4/T5.
EP20020011998 2001-08-24 2002-05-31 Roue en alliage léger Expired - Fee Related EP1287925B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001141510 DE10141510A1 (de) 2001-08-24 2001-08-24 Verfahren zum Herstellen von Leichtmetall-Felgen
DE10141510 2001-08-24

Publications (3)

Publication Number Publication Date
EP1287925A2 EP1287925A2 (fr) 2003-03-05
EP1287925A3 EP1287925A3 (fr) 2004-04-28
EP1287925B1 true EP1287925B1 (fr) 2009-04-22

Family

ID=7696481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020011998 Expired - Fee Related EP1287925B1 (fr) 2001-08-24 2002-05-31 Roue en alliage léger

Country Status (3)

Country Link
EP (1) EP1287925B1 (fr)
DE (2) DE10141510A1 (fr)
ES (1) ES2323411T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10322309B4 (de) * 2003-05-17 2005-04-21 Daimlerchrysler Ag Zylinderkopf für Verbrennungsmotoren und Verfahren zu dessen Herstellung
DE102005026829A1 (de) * 2005-06-09 2006-12-21 Bd-Breyton-Design Gmbh Aluminium-Fahrzeugfelge und Verfahren zum Herstellen einer solchen

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4579604A (en) * 1982-07-08 1986-04-01 Ni Industries, Inc. Method of spin forging a finished article
DE3443227C1 (de) * 1984-11-27 1986-05-15 Årdal og Sunndal Verk A/S, Oslo Verfahren zum Ausrichten von Fahrzeugraedern aus einer aushaertbaren Aluminiumlegierung
DE3443226C1 (de) * 1984-11-27 1986-03-13 Årdal og Sunndal Verk A/S, Oslo Verfahren und Vorrichtung zur Verbesserung der dynamischen Festigkeit von Radscheiben von Fahrzeugraedern aus aushaertbaren Aluminiumlegierungen
DE3443207C1 (de) * 1984-11-27 1985-09-12 Årdal og Sunndal Verk A/S, Oslo Verfahren zum Ausrichten von Fahrzeugraedern
AU639674B2 (en) * 1988-10-24 1993-08-05 Asahi Tec Corporation Spinning molding process, spinning molding apparatus, spinning molding raw material, spinning molding process of vehicle wheel, and spinning molding apparatus of vehicle wheel
US5340418A (en) * 1992-02-27 1994-08-23 Hayes Wheels International, Inc. Method for producing a cast aluminum vehicle wheel
DE4304134C1 (de) * 1993-02-11 1994-09-15 Albert Handtmann Metallguswerk Verfahren zur Herstellung von Gußteilen
DE4305091C1 (de) * 1993-02-19 1994-03-10 Fuchs Otto Fa Verfahren zur Herstellung eines einteiligen Leichtmetallrades aus einem Aluminium-Knetwerkstoff
CH687816A5 (de) * 1994-10-26 1997-02-28 Alusuisse Lonza Services Ag Sicherheitslenksaeule.
GB2295341A (en) 1994-11-25 1996-05-29 Asahi Tec Corp Method for spinning vehicle wheel
DE19524176C1 (de) * 1995-07-03 1996-09-26 Daimler Benz Ag Verfahren zum Zwischenabschrecken von aus einem Lösungs-Glühofen kommenden Leichtmetall-Gußstücken
IT1279738B1 (it) * 1995-09-29 1997-12-16 Reynolds Wheels Spa Procedimento di formatura di cerchi per pneumatici in lega metallica
US6033499A (en) * 1998-10-09 2000-03-07 General Motors Corporation Process for stretch forming age-hardened aluminum alloy sheets
DE19901508A1 (de) * 1999-01-16 2000-08-17 Bayerische Motoren Werke Ag Verfahren zur Herstellung von Gußteilen aus Aluminiumlegierungen
DE19909519B4 (de) * 1999-03-04 2006-06-08 Leifeld Metal Spinning Gmbh Verfahren zur Herstellung eines Leichtmetallrades
DE10003791B4 (de) * 2000-01-28 2004-06-17 Forschungsgesellschaft Umformtechnik Mbh Verfahren zur Herstellung von Felgen
DE10016187C2 (de) * 2000-03-31 2002-05-08 Daimler Chrysler Ag Verfahren und Vorrichtung zur Wärmebehandlung von Gußteilen aus Aluminium,insbesondere von Zylinderköpfen

Also Published As

Publication number Publication date
EP1287925A2 (fr) 2003-03-05
DE50213470D1 (de) 2009-06-04
EP1287925A3 (fr) 2004-04-28
DE10141510A1 (de) 2003-03-13
ES2323411T3 (es) 2009-07-15

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