EP1287925A2 - Procédé de formage des roues en alliage léger - Google Patents

Procédé de formage des roues en alliage léger Download PDF

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Publication number
EP1287925A2
EP1287925A2 EP02011998A EP02011998A EP1287925A2 EP 1287925 A2 EP1287925 A2 EP 1287925A2 EP 02011998 A EP02011998 A EP 02011998A EP 02011998 A EP02011998 A EP 02011998A EP 1287925 A2 EP1287925 A2 EP 1287925A2
Authority
EP
European Patent Office
Prior art keywords
rim
aging
bowl
horn
solution annealing
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
EP02011998A
Other languages
German (de)
English (en)
Other versions
EP1287925A3 (fr
EP1287925B1 (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 method for producing light metal rims made of an aluminum alloy, in particular for motor vehicles, according to the preamble of claim 1.
  • Such a method can be found, for example, in DE 44 42 465 A1, in which a blank, preferably produced in the casting process, under Heat is extruded into a rim.
  • the Rim material has aluminum as an essential component and as secondary components Silicon, magnesium, etc.
  • targeted heat treatment such as solution annealing and aging (aging) at defined treatment times tensions are reduced, the structure of the material improved and a defined strength from the T4 state to the T6 state set.
  • the object of the invention is to propose a method of the generic type, with the different load cases of the light alloy rim is better taken into account in motor vehicles.
  • the resulting forces in the wheel suspension of the motor vehicle are essentially initiated by the accelerations of unsprung masses.
  • the acceleration itself depends again on the rigidity of the rim at the load application points.
  • the proposal according to the invention thus creates a balance in which the less rigid part of the rim with the rim well and the inner horn raised to a high level of strength by a T6 heat treatment becomes, while the rigid outer horn area with at least the radial outer area of the rim bowl with a T4 or T5 treatment is maintained at a lower fixed level.
  • the radially inside lying hub area of the rim bowl may vary depending on other criteria have either T6 or T4 / T5.
  • the different heat treatment of the rim can be adapted to the used alloy material and the manufacturing process used in a different warm aging or one after the Warm aging additionally performed solution annealing or a different one Cooling rate when quenching from solution solution temperature to reduce the strength of parts of the rim be performed.
  • the rim 10 shown in half made of an AL alloy essentially settles together from a disc-shaped rim bowl 12, one adjoining annular outer horn 14, also an annular one Inner horn 16 and a rim bed 18 located between them.
  • the rim 10 is in a known manner on the material stronger radially inner Hub area 20 of the rim bowl 12 on a receiving flange attached to the wheel bearing of the motor vehicle and does not carry one shown tires.
  • the rim 10 can, for example, as in the aforementioned DE 44 42 465 A1 be made, e.g. B. by extrusion or forging a pre-cast Blanks or by using an AL wrought alloy.
  • the rim 10 is a solution heat treatment at a temperature in a known manner subjected to about 550 ° C and quenched.
  • the inner horn 16 and the rim well 18 are hardened to the state T6 in accordance with the region 22 shown or outsourced warm, while at the same time section 24 with the outer horn 14 and the radially outer region 26 of the rim bowl 12 Heat extraction or cooling kept at a temperature of approx. 100 ° C and thus only the state T4 or T5 with a correspondingly reduced Takes firmness.
  • the radially inner heat treatment area 28 or the hub area 20 the rim 10 can in turn with reduced cooling or possibly even the same Warm aging temperature of 200 ° C strengths according to T4, T5 or T6, depending on the load profile and geometry of the corresponding Light metal rim.
  • the strength-reduced area 24 and / or 28 can also be produced be in which the rim 10 after the conventional hot aging in the relevant areas briefly annealed and is deterred. It is understood that apart from z. B. one favorable transition area 30 between the rim well 18 and the outer horn 14 the set strength of the adjacent areas is not reduced will, e.g. B. by appropriate cooling measures.
  • the reduced-strength area 24 and or 28 can also be produced in which the rim 10 after solution annealing targeted cooling is slow in this area in the deterrent process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Articles (AREA)
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 true EP1287925A2 (fr) 2003-03-05
EP1287925A3 EP1287925A3 (fr) 2004-04-28
EP1287925B1 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004101981A1 (fr) * 2003-05-17 2004-11-25 Daimlerchrysler Ag Procede de trempe et revenu de culasses, et culasses pour moteurs a combustion interne

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005026829A1 (de) * 2005-06-09 2006-12-21 Bd-Breyton-Design Gmbh Aluminium-Fahrzeugfelge und Verfahren zum Herstellen einer solchen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4442465A1 (de) 1994-11-25 1996-05-30 Asahi Tec Corp Verfahren zum Herstellen eines Fahrzeugrades im Fließdrückverfahren

Family Cites Families (16)

* 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
DE3443207C1 (de) * 1984-11-27 1985-09-12 Årdal og Sunndal Verk A/S, Oslo Verfahren zum Ausrichten von Fahrzeugraedern
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
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
SK101194A3 (en) * 1992-02-27 1997-04-09 Hayes Wheel Int Inc Method for producing heat treated metall parts, particularly vehicle wheels
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.
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4442465A1 (de) 1994-11-25 1996-05-30 Asahi Tec Corp Verfahren zum Herstellen eines Fahrzeugrades im Fließdrückverfahren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004101981A1 (fr) * 2003-05-17 2004-11-25 Daimlerchrysler Ag Procede de trempe et revenu de culasses, et culasses pour moteurs a combustion interne

Also Published As

Publication number Publication date
DE50213470D1 (de) 2009-06-04
ES2323411T3 (es) 2009-07-15
EP1287925A3 (fr) 2004-04-28
EP1287925B1 (fr) 2009-04-22
DE10141510A1 (de) 2003-03-13

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