WO1994019127A1 - 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
WO1994019127A1
WO1994019127A1 PCT/DE1994/000063 DE9400063W WO9419127A1 WO 1994019127 A1 WO1994019127 A1 WO 1994019127A1 DE 9400063 W DE9400063 W DE 9400063W WO 9419127 A1 WO9419127 A1 WO 9419127A1
Authority
WO
WIPO (PCT)
Prior art keywords
alloy
blank
rolling
temperature
light metal
Prior art date
Application number
PCT/DE1994/000063
Other languages
German (de)
French (fr)
Inventor
Horst Klein
Gernot Fischer
Heinz Lowak
Klaus Modricker
Gerd MÖRCHEN
Original Assignee
Firma Otto Fuchs
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 Firma Otto Fuchs filed Critical Firma Otto Fuchs
Priority to JP6518528A priority Critical patent/JPH08505660A/en
Priority to KR1019950703462A priority patent/KR0178603B1/en
Priority to EP94904966A priority patent/EP0684883B1/en
Priority to SK1018-95A priority patent/SK279051B6/en
Priority to AU58788/94A priority patent/AU5878894A/en
Publication of WO1994019127A1 publication Critical patent/WO1994019127A1/en
Priority to NO952166A priority patent/NO301109B1/en

Links

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 process 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 is carried out at temperatures of approximately 530 ° C. depending on the type of alloy followed by 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.
  • flange blanks are used, in which the flange, which is approximately rectangular in cross-section, is split radially and then the rim base is rolled out, or so-called pot blanks in which the rim base is also rolled out with support from the correspondingly shaped edge region becomes.
  • 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 approximately 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.
  • thermoset 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 alloy type, flow-pressed or rolled at this temperature, avoiding excessive heating to the finished product, and then "is thermoset.
  • the blank is split and then flow-pressed or rolled into a finished pot.
  • the rolling out of the blank after the controlled quenching from the solution annealing temperature also leads to improved material structure and thus also 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 at high quenching speed 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.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)
  • Braking Arrangements (AREA)
  • Extrusion Of Metal (AREA)
  • Metal Rolling (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 °C, then is quenched and artificially aged at approximately 150° to 200°. The solution heat treated blank is controllably quenched at approximately 200 °C, is flow turned or rolled at this temperature, while a further temperature rise is avoided, and is then artificially aged.

Description

"Verfahren zur Herstellung eines einteiligen Leichtmetallrades aus einem Aluminium-Knetwerkstoff" "Process for producing a one-piece light metal wheel from an aluminum wrought material"
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 Fertig¬ produkt im Warmzustand durchgeführt wird und bei dem ein Lösungsglühen bei Temperaturen von etwa 530°C in Abhängig¬ keit vom Legierungstyp mit anschließendem Abschrecken und Warmaushärten bei 150° bis 200°C erfolgt, sowie insbeson¬ dere dessen Anwendung zur Herstellung eines einteiligen Leichtmetallrades aus einer Legierung des Types AlMgSi.The invention relates to a process 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 is carried out at temperatures of approximately 530 ° C. depending on the type of alloy followed by 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 bekannten Verfahren dieser Art werden sogenannte Flanschrohlinge, bei denen der im Querschnitt etwa recht¬ eckige Flansch radial aufgespalten und danach das Felgen- bett ausgewalzt wird, oder sogenannte Topfrohlinge einge¬ setzt, bei denen aus dem entsprechend geformten Randbereich das Felgenbett mit Unterstützung ebenfalls ausgewalzt wird. Vor dem Aufspalten und Fertigwalzen des Flanschrohl inges oder mit Fertigwalzen von Topfrohl ingen in einem Arbeits¬ gang werden bei einem bekannten Verfahren die Rohlinge auf einen Temperaturbereich von 150° bis 250°C erwärmt. Nach der Fertigstellung erfolgt eine Lösungsgl ühung bei Tempera¬ turen von etwa 530°C in Abhängigkeit vom Legierungstyp und eine Warmaushärtung bei 150° bis 200°C.In known methods of this type, so-called flange blanks are used, in which the flange, which is approximately rectangular in cross-section, is split radially and then the rim base is rolled out, or so-called pot blanks in which the rim base is also rolled out with support from the correspondingly shaped edge region becomes. Before splitting and finishing rolling the flange blank or with finishing rollers of pot blank 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 approximately 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 Walz¬ bearbeitung 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, the 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 Ener¬ gieaufwand 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 Le¬ gierungstyp auf etwa 200°C kontrolliert abgeschreckt, bei dieser Temperatur unter Vermeidung stärkerer Erwärmung zum Fertigprodukt fließgedrückt oder gewalzt und danach" warm- ausgehärtet 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 alloy type, flow-pressed or rolled at this temperature, avoiding excessive heating to the finished product, and then "is thermoset.
Das kontrollierte Abschrecken des ungewalzten Rohlinges aus dem Lösungsglühvorgang in Abhängigkeit vom Legierungs¬ typ auf etwa 200°C und das anschließende Fertigwalzen ver- meiden 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, gegebenenfalls durch eine Wiedererwärmung auf dieses Temperaturniveau, 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 Fl.ieß- drücken oder Walzen eines Topfrohlings zum Fertigprodukt. Das Auswalzen des Rohlings nach dem kontrollierten Ab¬ schrecken von der Lösungsglühtemperatur führt darüber hinaus zu verbesserter Werkstoff-Gefügeausbi ldung 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 type of alloy, to approximately 200 ° C. and the subsequent finish-rolling largely avoid warping of the finished-rolled 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 about 200 ° C., possibly by reheating to this temperature level, is compared to the known method 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 pot. The rolling out of the blank after the controlled quenching from the solution annealing temperature also leads to improved material structure and thus also 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 Wasser- temperatur durchzuführen. Hierdurch werden gute mechanische Eigenschaften erreicht. Möglich ist jedoch auch das Ab¬ schrecken von mehreren Rohlingen in geeigneten Gestellen über entsprechende Wasserberieselung.The invention also includes the proposal to carry out quenching after solution annealing at high quenching speed 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 Her¬ stellung eines einteiligen Leichtmetallrades aus einer Le¬ gierung 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 Rohlin- ges 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

Patentansprüche Claims
1. Verfahren zur Herstellung eines einteiligen Leichtmetal 1 - rades aus einer aushärtbaren Aluminium-Knetlegierung durch Fließdrücken oder Walzen aus einem Rohling, bei dem das Fließdrücken oder Walzen zum Fertigprodukt im Warmzu¬ stand durchgeführt wird und bei dem ein Lösungsglühen bei Temperaturen von etwa 530°C in Abhängigkeit vom Legie¬ rungstyp mit anschließendem Abschrecken und Warmaushärten bei 150° bis 200°C erfolgt, d a d u r c h g e k e n n z e i c h ¬ n e t , daß nach dem Lösungsglühen der Rohling in Abhän¬ gigkeit vom Legierungstyp auf etwa 200°C kontrolliert abgeschreckt, bei dieser Temperatur unter Vermeidung stärkerer Erwärmung zum Fertigprodukt fließgedrückt oder gewalzt und danach warmausgehärtet wird.1. Process for the production of a one-piece light metal 1 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 warm state and in which solution annealing is carried out at temperatures of approximately 530 ° C depending on the type of alloy followed by quenching and heat hardening at 150 ° to 200 ° C, characterized in that after solution annealing the blank is quenched in a controlled manner depending on the alloy type to about 200 ° C, at this temperature with avoidance stronger warming to the finished product is flow-pressed or rolled and then heat-cured.
2. Verfahren nach Anspruch 1, d a d u r c h g e k e n n z e i c h ¬ n et , daß beim kontrollierten Abkühlen zunächst die Walztemperatur unterschritten wird und danach wieder auf Walztemperatur erwärmt wird.2. The method of claim 1, d a d u r c h g e k e n n z e i c h ¬ n et that the controlled cooling first falls below the rolling temperature and then heated to the rolling temperature again.
3. Verfahren nach Anspruch 1, d a d u r c h g e k e n n z e i c h ¬ n e t , daß der einzelne Rohling mit hoher Abschreckge¬ schwindigkeit über Wasserbrausen mit definierter Wasser- menge und Wassertemperatur abgeschreckt wird.3. The method of claim 1, d a d u r c h g e k e n n z e i c h ¬ n e t that the individual blank is quenched with high quenching speed over water showers with a defined amount of water and water temperature.
4. Anwendung eines Verfahrens nach einem oder mehreren der vorangegangenen Ansprüche zur Herstellung eines einteili¬ gen Leichtmetallrades aus einer Legierung des Tys AlMgSi. 4. Application of a method according to one or more of the preceding claims for producing a one-part light alloy wheel made of an alloy of Tys AlMgSi.
PCT/DE1994/000063 1993-02-19 1994-01-22 Process for manufacturing a light metal wheel in a single piece from a wrought aluminium material WO1994019127A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP6518528A JPH08505660A (en) 1993-02-19 1994-01-22 Method for manufacturing an integral light metal wheel made of aluminum wrought material
KR1019950703462A KR0178603B1 (en) 1993-02-19 1994-01-22 Process for manufacturing a light metal wheel in a single piece from a wrought aluminum material
EP94904966A EP0684883B1 (en) 1993-02-19 1994-01-22 Process for manufacturing a light metal wheel in a single piece from a wrought aluminium material
SK1018-95A SK279051B6 (en) 1993-02-19 1994-01-22 Process for manufacturing a light metal wheel in a single piece from a wrought aluminium material.
AU58788/94A AU5878894A (en) 1993-02-19 1994-01-22 Process for manufacturing a light metal wheel in a single piece from a wrought aluminium material
NO952166A NO301109B1 (en) 1993-02-19 1995-06-01 Method of manufacturing a one-piece light alloy wheel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4305091.3 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

Publications (1)

Publication Number Publication Date
WO1994019127A1 true WO1994019127A1 (en) 1994-09-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (11)

Country Link
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 (3)

* 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
DE19909519A1 (en) * 1999-03-04 2000-02-17 Leico Werkzeugmaschb Gmbh & Co Manufacturing method for e.g. aluminum wheel for motor vehicles pre-cast aluminum alloy blank is hot pressure-rolled, cooled to quench temperature, and cooled to quench temperature
DE102011102848A1 (en) * 2011-05-30 2012-12-20 Audi Ag Method for manufacturing wheel center of light metal vehicle wheel, involves forming final contour of wheel center by rolling blank against rotating die using roller tool

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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
HU226904B1 (en) * 1999-02-12 2010-01-28 Norsk Hydro As Aluminium alloy containing magnesium and silicon
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
EP2654984A1 (en) * 2010-12-23 2013-10-30 Tata Steel Nederland Technology B.V. Method of manufacturing a metal vehicle wheel and vehicle wheel
US8496764B2 (en) 2011-12-01 2013-07-30 Ford Global Technologies, Llc System and method for manufacturing an F-temper 7xxx series aluminum alloy
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
US9757784B2 (en) 2015-03-10 2017-09-12 Ford Global Technologies, Llc Temperature measurement device for metal sheet

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US4579604A (en) * 1982-07-08 1986-04-01 Ni Industries, Inc. Method of spin forging a finished article
US4708749A (en) * 1984-11-27 1987-11-24 Ardal Og Sunndal Verk A.S. Method of calibrating vehicle wheels to a finished size
JPS6357751A (en) * 1986-08-28 1988-03-12 Asahi Malleable Iron Co Ltd Manufacture of wheel for vehicle
JPH01233031A (en) * 1988-03-14 1989-09-18 Kobe Steel Ltd Manufacture of wheel

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JPH05287467A (en) * 1992-04-03 1993-11-02 Asahi Tec Corp Production of molded al alloy formed by spinning

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US4579604A (en) * 1982-07-08 1986-04-01 Ni Industries, Inc. Method of spin forging a finished article
US4708749A (en) * 1984-11-27 1987-11-24 Ardal Og Sunndal Verk A.S. Method of calibrating vehicle wheels to a finished size
JPS6357751A (en) * 1986-08-28 1988-03-12 Asahi Malleable Iron Co Ltd Manufacture of wheel for vehicle
JPH01233031A (en) * 1988-03-14 1989-09-18 Kobe Steel Ltd Manufacture of wheel

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Cited By (5)

* 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
DE19909519A1 (en) * 1999-03-04 2000-02-17 Leico Werkzeugmaschb Gmbh & Co Manufacturing method for e.g. aluminum wheel for motor vehicles pre-cast aluminum alloy blank is hot pressure-rolled, cooled to quench temperature, and cooled to quench temperature
DE19909519B4 (en) * 1999-03-04 2006-06-08 Leifeld Metal Spinning Gmbh Method for producing a light metal wheel
DE102011102848A1 (en) * 2011-05-30 2012-12-20 Audi Ag Method for manufacturing wheel center of light metal vehicle wheel, involves forming final contour of wheel center by rolling blank against rotating die using roller tool
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

Also Published As

Publication number Publication date
HUT71759A (en) 1996-01-29
EP0684883B1 (en) 1997-04-02
AU5878894A (en) 1994-09-14
SK101895A3 (en) 1997-06-04
NO301109B1 (en) 1997-09-15
HU9502444D0 (en) 1995-10-30
DE4305091C1 (en) 1994-03-10
ATE150992T1 (en) 1997-04-15
KR960700838A (en) 1996-02-24
SK279051B6 (en) 1998-06-03
HU212741B (en) 1996-10-28
NO952166D0 (en) 1995-06-01
CZ292222B6 (en) 2003-08-13
NO952166L (en) 1995-06-16
CZ207095A3 (en) 1996-03-13
KR0178603B1 (en) 1999-02-18
JPH08505660A (en) 1996-06-18
EP0684883A1 (en) 1995-12-06

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