EP0684883B1 - Process for manufacturing a light metal wheel in a single piece from a wrought aluminium material - Google Patents

Process for manufacturing a light metal wheel in a single piece from a wrought aluminium material Download PDF

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Publication number
EP0684883B1
EP0684883B1 EP94904966A EP94904966A EP0684883B1 EP 0684883 B1 EP0684883 B1 EP 0684883B1 EP 94904966 A EP94904966 A EP 94904966A EP 94904966 A EP94904966 A EP 94904966A EP 0684883 B1 EP0684883 B1 EP 0684883B1
Authority
EP
European Patent Office
Prior art keywords
blank
alloy
rolling
light metal
metal wheel
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 - Lifetime
Application number
EP94904966A
Other languages
German (de)
French (fr)
Other versions
EP0684883A1 (en
Inventor
Horst Klein
Gernot Fischer
Heinz Lowak
Klaus Modricker
Gerd MÖRCHEN
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.)
Otto Fuchs KG
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Otto Fuchs KG
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Publication date
Application filed by Otto Fuchs KG filed Critical Otto Fuchs KG
Publication of EP0684883A1 publication Critical patent/EP0684883A1/en
Application granted granted Critical
Publication of EP0684883B1 publication Critical patent/EP0684883B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21D53/264—Making other particular articles wheels or the like wheels out of a single piece
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
    • B21H1/10—Making articles shaped as bodies of revolution rings of restricted axial length rims for pneumatic tyres
    • 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
    • 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 one-piece light metal wheel from a hardenable wrought aluminum alloy by flow pressing or rolling from a blank, in which the flow pressing or rolling to the finished product is carried out in the hot state and in which solution annealing at temperatures of approximately 530 ° C. is dependent of the alloy type with subsequent quenching and heat hardening at 150 ° to 200 ° C, and in particular its use for producing a one-piece light metal wheel from an alloy of the type AlMgSi.
  • the blanks are heated to a temperature range of 150 ° to 250 ° C. in a known method. After completion, solution annealing takes place at temperatures of around 530 ° C depending on the type of alloy and heat hardening at 150 ° to 200 ° C.
  • the purpose of the invention is to largely avoid warping of the finished rolled part and to reduce the energy expenditure in a method of the type mentioned at the beginning.
  • This object of the invention is achieved with a method of the type mentioned, which is characterized in that, after solution annealing, the blank is quenched in a controlled manner to about 200 ° C., depending on the type of alloy, flow-pressed or rolled at this temperature, avoiding excessive heating, to the finished product and then heat-cured .
  • the controlled quenching of the unwrought blank from the solution annealing process, depending on the alloy type, to around 200 ° C and the subsequent finish rolling largely avoid warping of the finished part, which was caused by quenching and subsequent turning.
  • the controlled quenching of the blank, depending on the type of alloy to a temperature of approximately 200 ° C., compared to the known process in which the reheating of ambient temperature, energy savings of considerable kind are achieved.
  • the blank is split and then flow pressed or rolled into a finished product.
  • the rolling out of the blank after the controlled quenching from the solution annealing temperature also leads to improved material structure and thus to improved use properties.
  • the heat curing then takes place in a known manner.
  • the invention also includes the proposal to carry out quenching after solution annealing with a high quenching rate using water showers with a defined amount of water and water temperature. Good mechanical properties are achieved in this way. However, it is also possible to quench several blanks in suitable racks using appropriate water sprinkling.
  • Such a method is preferably used to produce a one-piece light metal wheel from an alloy of the AlMgSi type.
  • the so-called turning allowance for the rim base can be significantly reduced. Concentricity and imbalance are reduced.

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  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)
  • Heat Treatment Of Articles (AREA)
  • Metal Rolling (AREA)
  • Extrusion Of Metal (AREA)
  • Heat Treatment Of Steel (AREA)
  • Braking Arrangements (AREA)

Abstract

A process is disclosed for manufacturing a light metal wheel in a single piece from a wrought aluminium material, preferably an alloy of the AlMgSi type, by flow turning or rolling a warm blank. The blank is solution heat treated at temperatures around 530 DEG C, then is quenched and artificially aged at approximately 150 DEG to 200 DEG . The solution heat treated blank is controllably quenched at approximately 200 DEG C, is flow turned or rolled at this temperature, while a further temperature rise is avoided, and is then artificially aged.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines einteiligen Leichtmetallrades aus einer aushärtbaren Al-Knetlegierung durch Fließdrücken oder Walzen aus einem Rohling, bei dem das Fließdrücken oder Walzen zum Fertigprodukt im Warmzustand durchgeführt wird und bei dem ein Lösungsglühen bei Temperaturen von etwa 530°C in Abhängigkeit vom Legierungstyp mit anschließendem Abschrecken und Warmaushärten bei 150° bis 200°C erfolgt, sowie insbesondere dessen Anwendung zur Herstellung eines einteiligen Leichtmetallrades aus einer Legierung des Types AlMgSi.The invention relates to a method for producing a one-piece light metal wheel from a hardenable wrought aluminum alloy by flow pressing or rolling from a blank, in which the flow pressing or rolling to the finished product is carried out in the hot state and in which solution annealing at temperatures of approximately 530 ° C. is dependent of the alloy type with subsequent quenching and heat hardening at 150 ° to 200 ° C, and in particular its use for producing a one-piece light metal wheel from an alloy of the type AlMgSi.

Bei einem aus der US-A 4 579 604 bekannten Verfahren dieser Art werden sogenannte Flanschrohlinge, bei denen der im Querschnitt etwa rechteckige Flansch radial aufgespalten und danach das Felgenbett ausgewalzt wird, oder sogenannte Topfrohlinge eingesetzt, bei denen aus dem entsprechend geformten Randbereich das Felgenbett mit Unterstützung ebenfalls ausgewalzt wird.In a method of this type known from US Pat. No. 4,579,604, so-called flange blanks, in which the flange, which is approximately rectangular in cross-section, is split radially and the rim base is then rolled out, or so-called pot blanks, in which the rim base also coexists from the correspondingly shaped edge region Support is also rolled out.

Vor dem Aufspalten und Fertigwalzen des Flanschrohlinges oder mit Fertigwalzen von Topfrohlingen in einem Arbeitsgang werden bei einem bekannten Verfahren die Rohlinge auf einen Temperaturbereich von 150° bis 250°C erwärmt. Nach der Fertigstellung erfolgt eine Lösungsglühung bei Temperaturen von etwa 530°C in Abhängigkeit vom Legierungstyp und eine Warmaushärtung bei 150° bis 200°C.Before the flange blank is split and finished rolled or with finish rolling of pot blanks in one operation, the blanks are heated to a temperature range of 150 ° to 250 ° C. in a known method. After completion, solution annealing takes place at temperatures of around 530 ° C depending on the type of alloy and heat hardening at 150 ° to 200 ° C.

Beim Lösungsglühen und Abschrecken der gewalzten Rohlinge besteht die Gefahr eines starken Verzuges, insbesondere des Felgenbettes. Außerdem erfordert das Erwärmen zur Walzbearbeitung einen hohen zusätzlichen Energieaufwand.When solution annealing and quenching the rolled blanks, there is a risk of severe distortion, particularly of the rim well. In addition, heating for rolling processing requires a large amount of additional energy.

Der Zweck der Erfindung besteht darin, weitgehend den Verzug des fertiggewalzten Teils zu vermeiden und den Energieaufwand bei einem Verfahren der eingangs genannten Art zu verringern.The purpose of the invention is to largely avoid warping of the finished rolled part and to reduce the energy expenditure in a method of the type mentioned at the beginning.

Gelöst wird diese Erfindungsaufgabe mit einem Verfahren der genannten Art, welches dadurch gekennzeichnet ist, daß nach dem Lösungsglühen der Rohling in Abhängigkeit vom Legierungstyp auf etwa 200°C kontrolliert abgeschreckt, bei dieser Temperatur unter Vermeidung stärkerer Erwärmung zum Fertigprodukt fließgedrückt oder gewalzt und danach warmausgehärtet wird.This object of the invention is achieved with a method of the type mentioned, which is characterized in that, after solution annealing, the blank is quenched in a controlled manner to about 200 ° C., depending on the type of alloy, flow-pressed or rolled at this temperature, avoiding excessive heating, to the finished product and then heat-cured .

Das kontrollierte Abschrecken des ungewalzten Rohlinges aus dem Lösungsglühvorgang in Abhängigkeit vom Legierungstyp auf etwa 200°C und das anschließende Fertigwalzen vermeiden weitgehend einen Verzug des fertiggewalzten Teils, der durch Abschreckung und nachfolgende Drehbearbeitung hervorgerufen wurde. Durch das kontrollierte Abschrecken des Rohlings in Abhängigkeit vom Legierungstyp auf eine Temperatur von etwa 200°C, wird gegenüber dem bekannten Verfahren, bei dem die Wiedererwärmung von der Umgebungstemperatur erfolgt, eine Energieersparnis von beträchtlicher Art erreicht. Bei diesem Temperaturniveau von etwa 200°C in Abhängigkeit vom Legierungstyp erfolgt die Aufspaltung des Rohlings und anschließend das Fließdrücken oder Walzen eines Topfrohlings zum Fertigprodukt. Das Auswalzen des Rohlings nach dem kontrollierten Abschrecken von der Lösungsglühtemperatur führt darüber hinaus zu verbesserter Werkstoff-Gefügeausbildung und somit auch zu verbesserten Gebrauchseigenschaften. In bekannter Weise erfolgt danach die Warmaushärtung.The controlled quenching of the unwrought blank from the solution annealing process, depending on the alloy type, to around 200 ° C and the subsequent finish rolling largely avoid warping of the finished part, which was caused by quenching and subsequent turning. The controlled quenching of the blank, depending on the type of alloy, to a temperature of approximately 200 ° C., compared to the known process in which the reheating of ambient temperature, energy savings of considerable kind are achieved. At this temperature level of around 200 ° C, depending on the type of alloy, the blank is split and then flow pressed or rolled into a finished product. The rolling out of the blank after the controlled quenching from the solution annealing temperature also leads to improved material structure and thus to improved use properties. The heat curing then takes place in a known manner.

Zur Erfindung gehört auch der Vorschlag, das Abschrecken nach dem Lösungsglühen mit hoher Abschreckgeschwindigkeit über Wasserbrausen mit definierter Wassermenge und Wassertemperatur durchzuführen. Hierdurch werden gute mechanische Eigenschaften erreicht. Möglich ist jedoch auch das Abschrecken von mehreren Rohlingen in geeigneten Gestellen über entsprechende Wasserberieselung.The invention also includes the proposal to carry out quenching after solution annealing with a high quenching rate using water showers with a defined amount of water and water temperature. Good mechanical properties are achieved in this way. However, it is also possible to quench several blanks in suitable racks using appropriate water sprinkling.

Bevorzugt findet ein solches Verfahren Anwendung zur Herstellung eines einteiligen Leichtmetallrades aus einer Legierung des Types AlMgSi.Such a method is preferably used to produce a one-piece light metal wheel from an alloy of the AlMgSi type.

Weiter ist es von Vorteil, die Walztemperatur von etwa 200°C in Abhängigkeit vom Legierungstyp, die jedoch während des Walz- oder Drückvorganges beibehalten werden muß, für die nachfolgende Warmaushärtung auszunutzen.It is also advantageous to use the rolling temperature of approximately 200 ° C. for the subsequent heat hardening, depending on the type of alloy, which, however, must be maintained during the rolling or pressing process.

Infolge des geringeren Verzuges des fertiggewalzten Rohlinges kann das sogenannte Drehaufmaß für das Felgenbett erheblich verringert werden. Rundlaufabweichungen und Unwucht werden verringert.As a result of the less distortion of the finished rolled blank, the so-called turning allowance for the rim base can be significantly reduced. Concentricity and imbalance are reduced.

Claims (4)

  1. Method of producing a one-piece light metal wheel from a hardenable aluminium wrought alloy by flow pressing or rolling from a blank, wherein the flow pressing or rolling is effected to produce the end product in its hot state, and wherein a solution treatment process is effected at temperatures of approximately 530° C, depending on the alloy type, with subsequent quenching and age-hardening at between 150° C and 200° C, characterised in that, after the solution treatment process, the blank, depending on the alloy type, is quenched in a controlled manner to approximately 200° C, is flow pressed or rolled to produce the finished product at this temperature so as to avoid more intensive heating and is thereafter age-hardened.
  2. Method according to claim 1, characterised in that the rolling temperature is initially not reached during the controlled cooling process, and then heating is effected again to rolling temperature.
  3. Method according to claim 1, characterised in that the individual blank is quenched at a high quenching speed via water sprinklers having a specific quantity of water and water temperature.
  4. Use of a method according to one or more of the preceding claims to produce a one-piece light metal wheel from an alloy of the AlMgSi type.
EP94904966A 1993-02-19 1994-01-22 Process for manufacturing a light metal wheel in a single piece from a wrought aluminium material Expired - Lifetime EP0684883B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4305091 1993-02-19
DE4305091A DE4305091C1 (en) 1993-02-19 1993-02-19 One piece aluminium@ alloy wheel prodn. - by soln. annealing, quenching to working temp., extruding or rolling and then age hardening
PCT/DE1994/000063 WO1994019127A1 (en) 1993-02-19 1994-01-22 Process for manufacturing a light metal wheel in a single piece from a wrought aluminium material

Publications (2)

Publication Number Publication Date
EP0684883A1 EP0684883A1 (en) 1995-12-06
EP0684883B1 true EP0684883B1 (en) 1997-04-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP94904966A Expired - Lifetime EP0684883B1 (en) 1993-02-19 1994-01-22 Process for manufacturing a light metal wheel in a single piece from a wrought aluminium material

Country Status (11)

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EP (1) EP0684883B1 (en)
JP (1) JPH08505660A (en)
KR (1) KR0178603B1 (en)
AT (1) ATE150992T1 (en)
AU (1) AU5878894A (en)
CZ (1) CZ292222B6 (en)
DE (1) DE4305091C1 (en)
HU (1) HU212741B (en)
NO (1) NO301109B1 (en)
SK (1) SK279051B6 (en)
WO (1) WO1994019127A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8496764B2 (en) 2011-12-01 2013-07-30 Ford Global Technologies, Llc System and method for manufacturing an F-temper 7xxx series aluminum alloy
US9757784B2 (en) 2015-03-10 2017-09-12 Ford Global Technologies, Llc Temperature measurement device for metal sheet

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2295341A (en) * 1994-11-25 1996-05-29 Asahi Tec Corp Method for spinning vehicle wheel
DE19503620C2 (en) * 1995-02-03 1998-07-16 Daimler Benz Aerospace Ag Process for forming a plate-shaped component
DE19824978B4 (en) * 1998-06-04 2007-07-05 Volkswagen Ag A method of curing aluminum components of a vehicle body or a vehicle body assembly
CA2361760C (en) * 1999-02-12 2008-01-15 Ulf Tundal Aluminium alloy containing magnesium and silicon
DE19909519B4 (en) * 1999-03-04 2006-06-08 Leifeld Metal Spinning Gmbh Method for producing a light metal wheel
DE10043562C2 (en) * 1999-09-16 2003-09-18 Honsel Profilprodukte Gmbh Process for the heat treatment of extruded profiles
DE10141510A1 (en) * 2001-08-24 2003-03-13 Audi Ag Process for the production of light alloy rims
DE20320840U1 (en) * 2003-07-04 2005-03-31 Alutec Belte Ag Process for quenching cast part made from light metal alloy comprises using gaseous quenching medium
CN103328125A (en) * 2010-12-23 2013-09-25 塔塔钢铁荷兰科技有限责任公司 Method of manufacturing a metal vehicle wheel, and vehicle wheel
DE102011102848B4 (en) * 2011-05-30 2021-11-18 Audi Ag Process for the production of a wheel spider of a one-piece light metal vehicle wheel
JP6099475B2 (en) * 2013-05-01 2017-03-22 本田技研工業株式会社 Al-Mg-Si-based alloy member and manufacturing method thereof

Family Cites Families (5)

* 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
DE3443207C1 (en) * 1984-11-27 1985-09-12 Årdal og Sunndal Verk A/S, Oslo Procedure for aligning vehicle wheels
JP2627741B2 (en) * 1986-08-28 1997-07-09 旭テック株式会社 Manufacturing method for vehicle wheels
JPH01233031A (en) * 1988-03-14 1989-09-18 Kobe Steel Ltd Manufacture of wheel
JPH05287467A (en) * 1992-04-03 1993-11-02 Asahi Tec Corp Production of molded al alloy formed by spinning

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8496764B2 (en) 2011-12-01 2013-07-30 Ford Global Technologies, Llc System and method for manufacturing an F-temper 7xxx series aluminum alloy
US9757784B2 (en) 2015-03-10 2017-09-12 Ford Global Technologies, Llc Temperature measurement device for metal sheet

Also Published As

Publication number Publication date
AU5878894A (en) 1994-09-14
ATE150992T1 (en) 1997-04-15
HU212741B (en) 1996-10-28
KR960700838A (en) 1996-02-24
HUT71759A (en) 1996-01-29
SK279051B6 (en) 1998-06-03
NO952166L (en) 1995-06-16
JPH08505660A (en) 1996-06-18
KR0178603B1 (en) 1999-02-18
HU9502444D0 (en) 1995-10-30
DE4305091C1 (en) 1994-03-10
SK101895A3 (en) 1997-06-04
WO1994019127A1 (en) 1994-09-01
CZ292222B6 (en) 2003-08-13
CZ207095A3 (en) 1996-03-13
EP0684883A1 (en) 1995-12-06
NO301109B1 (en) 1997-09-15
NO952166D0 (en) 1995-06-01

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