EP0184719B1 - Verfahren und Vorrichtung zur Verbesserung der dynamischen Festigkeit von Radscheiben von Fahrzeugrädern aus aushärtbaren Aluminiumlegierungen - Google Patents

Verfahren und Vorrichtung zur Verbesserung der dynamischen Festigkeit von Radscheiben von Fahrzeugrädern aus aushärtbaren Aluminiumlegierungen Download PDF

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Publication number
EP0184719B1
EP0184719B1 EP85115054A EP85115054A EP0184719B1 EP 0184719 B1 EP0184719 B1 EP 0184719B1 EP 85115054 A EP85115054 A EP 85115054A EP 85115054 A EP85115054 A EP 85115054A EP 0184719 B1 EP0184719 B1 EP 0184719B1
Authority
EP
European Patent Office
Prior art keywords
wheel
improving
cooling
aluminium alloys
dynamic strength
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
Application number
EP85115054A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0184719A1 (de
Inventor
Otto Berg
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.)
Norsk Hydro ASA
Original Assignee
Norsk Hydro ASA
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 Norsk Hydro ASA filed Critical Norsk Hydro ASA
Publication of EP0184719A1 publication Critical patent/EP0184719A1/de
Application granted granted Critical
Publication of EP0184719B1 publication Critical patent/EP0184719B1/de
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/34—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tyres; for rims
    • 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

Definitions

  • the invention relates to a method for improving the dynamic strength of wheel disks of vehicle wheels made of hardenable aluminum alloys as well as a device for carrying out the method.
  • Aluminum wheels for vehicles have a number of positive properties compared to conventional steel wheels. So they have a lower weight, better dissipate the heat that arises when braking, are better balanced and have an appealing appearance. As a result, the proliferation of aluminum wheels is increasing, both for people and for commercial vehicles, the latter especially in the United States.
  • the fatigue strength of aluminum therefore largely determines the dimensions and thus the weight of the wheel. To a certain extent, the fatigue strength can be increased by using suitable alloys; however, the profit is often low.
  • the wheel disc is made from a material that is about twice as strong as that of the rim.
  • the thickness of the wheel disc is within a range of 7 - 14 mm.
  • the object of the present invention is to reduce the wall thickness of wheel disks for vehicles made of hardenable aluminum alloys and thus their weight without accepting a reduction in the dynamic strength.
  • the method according to the invention is characterized in that, after solution annealing, the wheel disc is cooled faster in a central area than in the peripheral areas. This ensures that there is a temperature gradient between the central region and the rim, so that static compressive stresses arise in the part of the wheel in which the above-mentioned fatigue stresses occur.
  • 1 denotes a wheel which is to be cooled in a controlled manner.
  • the wheel 1 is cooled from approximately 550 ° C. to room temperature after the shaping and after the solution annealing with the help of the nozzles 2, 3 and 4, from which cooling water is sprayed.
  • Other devices such as devices for holding the wheel and the nozzle and for supplying cooling water are not shown.
  • the cooling water emerging from the nozzle 2 is guided such that it first strikes the central region of the wheel. Subsequently, a larger part of the wheel is then gradually seized by the cooling water, until finally the rim is sprayed with the help of the nozzles 3 and 4.
  • the inner area of the wheel is sprayed from the nozzle 2. After five seconds, another area of the wheel is caught by the deterrent. After another five seconds, the rim is finally sprayed from nozzles 3 and 4.
  • the entire wheel has cooled to room temperature, that is to say has been completely quenched, and can be removed from the device.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Laminated Bodies (AREA)
EP85115054A 1984-11-27 1985-11-27 Verfahren und Vorrichtung zur Verbesserung der dynamischen Festigkeit von Radscheiben von Fahrzeugrädern aus aushärtbaren Aluminiumlegierungen Expired EP0184719B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3443226A DE3443226C1 (de) 1984-11-27 1984-11-27 Verfahren und Vorrichtung zur Verbesserung der dynamischen Festigkeit von Radscheiben von Fahrzeugraedern aus aushaertbaren Aluminiumlegierungen
DE3443226 1984-11-27

Publications (2)

Publication Number Publication Date
EP0184719A1 EP0184719A1 (de) 1986-06-18
EP0184719B1 true EP0184719B1 (de) 1988-10-12

Family

ID=6251285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115054A Expired EP0184719B1 (de) 1984-11-27 1985-11-27 Verfahren und Vorrichtung zur Verbesserung der dynamischen Festigkeit von Radscheiben von Fahrzeugrädern aus aushärtbaren Aluminiumlegierungen

Country Status (5)

Country Link
US (1) US4767473A (enrdf_load_stackoverflow)
EP (1) EP0184719B1 (enrdf_load_stackoverflow)
JP (1) JPS61147858A (enrdf_load_stackoverflow)
DE (2) DE3443226C1 (enrdf_load_stackoverflow)
ES (1) ES8700700A1 (enrdf_load_stackoverflow)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419792A (en) * 1994-07-25 1995-05-30 General Electric Company Method and apparatus for cooling a workpiece
DE10016187C2 (de) * 2000-03-31 2002-05-08 Daimler Chrysler Ag Verfahren und Vorrichtung zur Wärmebehandlung von Gußteilen aus Aluminium,insbesondere von Zylinderköpfen
US6394793B1 (en) 2001-01-13 2002-05-28 Ladish Company, Incorporated Method and apparatus of cooling heat-treated work pieces
DE10141510A1 (de) * 2001-08-24 2003-03-13 Audi Ag Verfahren zum Herstellen von Leichtmetall-Felgen
US20030098106A1 (en) * 2001-11-29 2003-05-29 United Technologies Corporation Method and apparatus for heat treating material
DE10222098B4 (de) * 2002-05-17 2011-01-13 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Wärmebehandlung von einem Bauteil aus einer härtbaren Leichtmetalllegierung
DE10312394A1 (de) * 2003-03-20 2004-09-30 Bayerische Motoren Werke Ag Verfahren und Vorrichtung zur Wärmebehandlung eines Bauteils aus einer Metalllegierung
DE10330400A1 (de) * 2003-07-04 2005-01-20 Alutec-Belte Ag Verfahren und Vorrichtung zum Abschrecken eines Gussteils
JP4969073B2 (ja) * 2005-01-20 2012-07-04 有限会社藤野技術コンサルタント アルミホイール製造装置
DE202005015907U1 (de) * 2005-10-07 2007-02-15 Heess Gmbh & Co.Kg Vorrichtung zur gezielten Wärmebehandlung von Eisenbahnschienenrädern
WO2014130150A1 (en) 2013-02-20 2014-08-28 Rolls-Royce Corporation Wall member useful in quenching
DE102016007450B4 (de) * 2016-06-17 2021-07-01 Audi Ag Verfahren zur Temperierung eines Gussteils
EP3725900A1 (de) 2019-04-17 2020-10-21 Mubea Performance Wheels GmbH Bauteil und verfahren und vorrichtung zum abschrecken eines bauteils
CN115055593A (zh) * 2022-06-20 2022-09-16 华中科技大学 一种双性能涡轮盘的热旋转挤压成形装置及方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172787A (en) * 1965-03-09 Method of manufacturing detachable wheel rims
US1497295A (en) * 1920-06-21 1924-06-10 Baush Machine Tool Company Demountable rim for vehicle wheels
US2596345A (en) * 1944-12-27 1952-05-13 Bethlehem Steel Corp Wheel quenching device
US3154441A (en) * 1962-04-20 1964-10-27 United States Steel Corp Method of heat-treating railroad wheels

Also Published As

Publication number Publication date
EP0184719A1 (de) 1986-06-18
ES549281A0 (es) 1986-10-16
JPS6363621B2 (enrdf_load_stackoverflow) 1988-12-08
ES8700700A1 (es) 1986-10-16
US4767473A (en) 1988-08-30
DE3565556D1 (en) 1988-11-17
DE3443226C1 (de) 1986-03-13
JPS61147858A (ja) 1986-07-05

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