EP0717784B1 - Blech aus einer aluminium-silizium-legierung fuer machinen- oder flugzeugbau und die raumfahrt - Google Patents

Blech aus einer aluminium-silizium-legierung fuer machinen- oder flugzeugbau und die raumfahrt Download PDF

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Publication number
EP0717784B1
EP0717784B1 EP95920993A EP95920993A EP0717784B1 EP 0717784 B1 EP0717784 B1 EP 0717784B1 EP 95920993 A EP95920993 A EP 95920993A EP 95920993 A EP95920993 A EP 95920993A EP 0717784 B1 EP0717784 B1 EP 0717784B1
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EP
European Patent Office
Prior art keywords
sheet metal
metal according
alloys
manufacture
aircraft
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.)
Revoked
Application number
EP95920993A
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English (en)
French (fr)
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EP0717784A1 (de
Inventor
Pierre Sainfort
Denis Bechet
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.)
Constellium Issoire SAS
Original Assignee
Pechiney Rhenalu SAS
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Filing date
Publication date
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Application filed by Pechiney Rhenalu SAS filed Critical Pechiney Rhenalu SAS
Publication of EP0717784A1 publication Critical patent/EP0717784A1/de
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Anticipated expiration legal-status Critical
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • C22C21/04—Modified aluminium-silicon alloys
    • 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
    • C22F1/043—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 with silicon as the next major constituent

Definitions

  • the invention relates to the field of alloy sheets medium and high strength aluminum used in the mechanical, aeronautical and space engineering and in armament.
  • high-strength aluminum alloys have been used in aeronautical and space construction, essentially Al-Cu alloys of the 2000 series (according to the designation of the Aluminum Association in the USA), for example alloys 2014 , 2019 and 2024, and Al-Zn-Mg and Al-Zn-Mg-Cu alloys of the 7000 series, for example alloys 7020 and 7075.
  • alloys 2000 and 7000 have a much better temperature resistance than that of most alloys 2000 and 7000, and at least equivalent to that of alloys in these series specially studied for their temperature resistance, such as alloys 2019 and 2618.
  • Al-Si alloys are widely used for the production of molded parts. However, in this form, they have far lower mechanical strength, fatigue and toughness properties than the wrought and transformed alloys 2000 and 7000 used in structural parts. In rare cases, they can be used in laminated form, in particular for covering plated sheets intended for the manufacture of brazed heat exchangers. Alloys 4343, 4104, 4045 and 4047 are thus used, for example, the properties sought in this case being essentially a low melting temperature and good wettability.
  • Al-Si alloys can also be spun in the form of bars or profiles which, due to their good resistance to wear and temperature, are used in mechanical parts such as connecting rods, brake master cylinders, drive shafts , bearings and various components of motors and compressors.
  • One of the alloys used for this purpose is 4032.
  • French patent FR 2291284 describes the manufacture of AlSi alloy sheets containing 4 to 15% Si by continuous casting between two cooled cylinders. This casting mode is intended to increase the elongation at break, and therefore the formability. They are not high-strength sheets usable in structural applications, since the sheets are simply annealed and the elastic limits exemplified do not exceed not 220 MPa.
  • the subject of the invention is therefore sheets heat treated by dissolving, quenching and optionally tempering so as to obtain an elastic limit R 0.2 greater than 320 MPa, intended for mechanical, naval, aeronautical or space construction made of alloy of following composition (by weight): Yes 6.5 to 11% Mg 0.5 to 1.0% Cu ⁇ 0.8% Fe ⁇ 0.3% Mn ⁇ 0.5% and / or Cr ⁇ 0.5% Sr 0.008 to 0.025% Ti ⁇ 0.02% the total of the other elements being less than 0.2%, the rest being aluminum.
  • the silicon content is preferably between 6.5 and 8%, corresponding to that of the AS7G alloy.
  • Another object of the invention is the use of especially medium or thick sheets of this alloy for the undersides of aircraft wings, of particularly thin sheets for the coating of aircraft fuselages, of sheets for the manufacture of tanks cryogenic rockets, floors and skips of industrial vehicles and hulls or supersructures of boats.
  • Another object of the invention is the method of manufacturing sheets according to claim 9.
  • the sheets according to the invention have silicon contents generally corresponding to the fields of alloys AS7G and AS9G according to French standard NF A 57-702 or the designations A 357 and A 359 of the Aluminum Association.
  • Magnesium should not exceed 1% to avoid the formation of the insoluble intermetallic compound Mg 2 Si.
  • Copper must be limited to 0.8% to avoid the formation of insoluble phases Mg 2 Si and Q (AlMgSiCu). This content also makes it possible to limit the sensitivity to intercrystalline corrosion.
  • Iron is also limited to 0.3%, and preferably 0.08%, as it is in 7000 alloys for heavy plate, when good toughness and / or good elongation.
  • the presence of titanium is linked to the refining of the titanium plates, identical to that used for current medium and high strength alloys.
  • the sheets according to the invention can be obtained by vertical casting of plates, hot rolling up to 6 mm, optionally cold rolling in the case of thin sheets, dissolving between 545 and 555 ° C, quenching with cold water, maturation at room temperature and / or tempering between 6 and 24 hours at a temperature between 150 and 195 ° C.
  • Hot rolling can be preceded by homogenization between 530 and 550 ° C for a duration of less than 20 h, short enough to avoid a globalization of the fibrous eutectic and a marked coalescence of the manganese and / or chromium, when the alloy contains it.
  • a very fine, non-globular eutectic microstructure is obtained in the final state, which has a favorable effect on the toughness.
  • the alloy is weldable by conventional TIG or MIG processes, continuous or pulsed, depending on whether it is a thin or thick sheet, and its density is always lower than that of traditional 2000 and 7000 alloys.
  • Plates with a cross section of 380 x 120 mm of alloy of the following composition (by weight) were produced by vertical casting: Yes 6.77% Mg 0.59% Cu 0.24% Fe 0.06% Mn 0.31% Sr 0.016% Ti 0.01% the total of the other elements being less than 0.2% and the rest being aluminum.
  • the alloy was homogenized at 550 ° C for 8 hours, after a temperature rise of 4 hours, reheated for 2 hours at 500 ° C, then hot rolled up to 20 mm thick on a reversible rolling mill.
  • Cut sheets were placed in solution for 2 hours at 550 ° C, soaked in water and subjected to an income of 8 hours at 175 ° C, ie a state T651 according to the designations of the Aluminum Association.
  • the alloy has a density of 2,678 and a modulus of elasticity E of 74,100 MPa, or a specific module of 27,670 MPa, was measured on the sheet by the hysteresis loop method in tension. 2.770, 72,500 MPa and 26,175 MPa respectively for a sheet of the same thickness in 2024 alloy in the T351 state, an increase of 5.7% in the specific module. This increase is more than 9% higher compared to alloy 2219 for welded construction.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)
  • Continuous Casting (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Coating With Molten Metal (AREA)
  • Soft Magnetic Materials (AREA)
  • Physical Vapour Deposition (AREA)

Claims (11)

  1. Blech aus hochfester Aluminiumlegierung, das durch Lösungsglühen, Abschrecken und eventuell Warmauslagerung warmbehandelt wird, um eine Dehngrenze R0.2 von über 320 Pa zu erreichen, zur Verwendung im Maschinenbau, Schiffbau, in der Luftfahrt- oder Raumfahrttechnik, mit folgender Zusammensetzung (in Masse-%) : Si 6,5 bis 11 % Mg 0,5 bis 1,0 % Cu < 0,8 % Fe < 0,3 % Mn < 0,5 % und/oder Cr : < 0,5 % Sr 0,008 bis 0,025 % Ti < 0,02 % Weitere Elemente insgesamt < 0,2 % Aluminiumwaage.
  2. Blech nach Anspruch 1, dadurch gekennzeichnet, daß der Si-Gehalt 6,5 bis 8 % beträgt.
  3. Blech nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß der Eisengehalt weniger als 0,08 % beträgt.
  4. Verwendung von Blechen nach einem der Ansprüche 1 bis 3 zur Herstellung von Flügelunterseiten für Flugzeuge.
  5. Verwendung von Blechen nach einem der Ansprüche 1 bis 3 zur Rumpfbeschichtung von Flugzeugen.
  6. Verwendung von Blechen nach einem der Ansprüche 1 bis 3 zur Herstellung von Kryogentanks für Raketen.
  7. Verwendung von Blechen nach einem der Ansprüche 1 bis 3 zur Herstellung von Böden oder Kübeln für Nutzfahrzeuge.
  8. Verwendung von Blechen nach einem der Ansprüche 1 bis 3 zum Bau von Schiffsrümpfen und Schiffsaufbauten.
  9. Verfahren zur Herstellung von Blechen nach einem der Ansprüche 1 bis 3 mit folgenden Schritten :
    Gießen einer Platte
    Aufwärmen bei 480 bis 520°C
    Warm- und ggfs. Kaltwalzen
    Lösungsglühen bei 545 bis 555°C
    Abschrecken in kaltem Wasser und
    Kalt- und/oder Warmauslagerung.
  10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß vor dem Aufwärmen eine Homogenisierung bei 530 bis 550°C während einer Dauer von weniger als 20 Std. durchgeführt wird.
  11. Verfahren nach einem der Ansprüche 9 und 10, dadurch gekennzeichnet, daß eine Warmauslagerung von 6 bis 24 Std. bei 150 bis 195°C durchgeführt wird.
EP95920993A 1994-06-13 1995-05-29 Blech aus einer aluminium-silizium-legierung fuer machinen- oder flugzeugbau und die raumfahrt Revoked EP0717784B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9407405A FR2721041B1 (fr) 1994-06-13 1994-06-13 Tôle d'alliage aluminium-silicium destinée à la construction mécanique, aéronautique et spatiale.
FR9407405 1994-06-13
PCT/FR1995/000693 WO1995034691A1 (fr) 1994-06-13 1995-05-29 Tole d'alliage aluminium-silicium destinee a la construction mecanique, aeronautique et spatiale

Publications (2)

Publication Number Publication Date
EP0717784A1 EP0717784A1 (de) 1996-06-26
EP0717784B1 true EP0717784B1 (de) 1998-09-16

Family

ID=9464309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95920993A Revoked EP0717784B1 (de) 1994-06-13 1995-05-29 Blech aus einer aluminium-silizium-legierung fuer machinen- oder flugzeugbau und die raumfahrt

Country Status (8)

Country Link
US (1) US5837070A (de)
EP (1) EP0717784B1 (de)
JP (1) JPH09501988A (de)
AT (1) ATE171222T1 (de)
CA (1) CA2168946A1 (de)
DE (1) DE69504802T2 (de)
FR (1) FR2721041B1 (de)
WO (1) WO1995034691A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006032699A1 (de) * 2006-07-14 2008-01-17 Bdw Technologies Gmbh & Co. Kg Aluminiumlegierung und deren Verwendung für ein Gussbauteil insbesondere eines Kraftwagens
DE102009024190A1 (de) * 2008-06-10 2010-02-18 GM Global Technology Operations, Inc., Detroit Sequenzielles Auslagern von Aluminium-Silizium-Gusslegierungen
RU2659514C1 (ru) * 2017-08-17 2018-07-02 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Литейный алюминиево-кремниевый сплав

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NL1002334C2 (nl) * 1996-02-14 1997-08-15 Hoogovens Aluminium Nv Slijtvaste aluminiumlegering met een goede corrosieweerstand.
US6168067B1 (en) * 1998-06-23 2001-01-02 Mcdonnell Douglas Corporation High strength friction stir welding
US6146477A (en) 1999-08-17 2000-11-14 Johnson Brass & Machine Foundry, Inc. Metal alloy product and method for producing same
JP4356851B2 (ja) * 1999-09-03 2009-11-04 本田技研工業株式会社 船舶用アルミニウムダイカスト材料
JP2002144018A (ja) * 2000-11-02 2002-05-21 Yorozu Corp 軽量高強度部材の製造方法
WO2003006697A1 (en) * 2001-07-09 2003-01-23 Corus Aluminium Walzprodukte Gmbh Weldable high strength al-mg-si alloy
US20030143102A1 (en) * 2001-07-25 2003-07-31 Showa Denko K.K. Aluminum alloy excellent in cutting ability, aluminum alloy materials and manufacturing method thereof
JP4227014B2 (ja) * 2001-07-25 2009-02-18 昭和電工株式会社 切削性に優れたアルミニウム合金材およびその製造方法
FR2832913B1 (fr) * 2001-12-03 2004-01-16 Pechiney Rhenalu Alliage d'aluminium pour ustensiles culinaires emailles et/ou revetus de ptfe
US20100282061A1 (en) * 2001-12-31 2010-11-11 Asher Peretz Anti-terror lightweight armor plates and a method of producing same
US6773666B2 (en) * 2002-02-28 2004-08-10 Alcoa Inc. Al-Si-Mg-Mn casting alloy and method
US20040166245A1 (en) * 2002-07-29 2004-08-26 Unionsteel Manufacturing Co., Ltd. Production method for aluminum alloy coated steel sheet
DE10331990A1 (de) * 2003-07-14 2005-02-24 Eads Deutschland Gmbh Geschweißtes Aluminium-Strukturbauteil mit metallisch induzierter Rissabeichung
FR2879115B1 (fr) * 2004-12-15 2007-03-16 Pechiney Softal Soc Par Action Procede de soudage du type mig pulse a fil pulse pour alliages d'aluminium
US8083871B2 (en) 2005-10-28 2011-12-27 Automotive Casting Technology, Inc. High crashworthiness Al-Si-Mg alloy and methods for producing automotive casting
JP5300118B2 (ja) 2007-07-06 2013-09-25 日産自動車株式会社 アルミニウム合金鋳物の製造方法
JP4719731B2 (ja) * 2007-11-22 2011-07-06 住友電気工業株式会社 切削性に優れたアルミニウム合金圧延材およびその製造方法
CN102312137B (zh) * 2011-09-09 2016-06-22 深圳市中兴康讯电子有限公司 铝硅镁系铸造铝合金及铸造工艺
US9284636B1 (en) * 2011-12-21 2016-03-15 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Impact toughness and heat treatment for cast aluminum
CN103008345B (zh) * 2012-12-03 2015-06-10 三门峡圣辉新型材料有限公司 一种铝合金连续铸轧生产工艺
US10113218B2 (en) * 2014-03-31 2018-10-30 Hitachi Metals, Ltd. Cast Al—Si—Mg-based aluminum alloy having excellent specific rigidity, strength and ductility, and cast member and automobile road wheel made thereof
JP6495246B2 (ja) * 2014-03-31 2019-04-03 アイシン軽金属株式会社 アルミニウム合金及びダイカスト鋳造方法
JP6014785B2 (ja) * 2014-10-31 2016-10-25 株式会社Uacj 磁気ディスク用アルミニウム合金基板
US20180057913A1 (en) * 2015-03-19 2018-03-01 GM Global Technology Operations LLC Alloy composition
CA2995250A1 (en) * 2015-08-13 2017-02-16 Alcoa Usa Corp. Improved 3xx aluminum casting alloys, and methods for making the same
FR3044326B1 (fr) * 2015-12-01 2017-12-01 Constellium Neuf-Brisach Tole mince a haute rigidite pour carrosserie automobile
CN105695816A (zh) * 2016-03-16 2016-06-22 杜生龙 一种用于制作支架的锌镁铝合金及其制备方法
US10927436B2 (en) 2017-03-09 2021-02-23 GM Global Technology Operations LLC Aluminum alloys
US11149333B2 (en) 2018-08-14 2021-10-19 Johnson Brass & Machine Foundry, Inc. Clean aluminum alloys
US11597987B2 (en) 2018-08-14 2023-03-07 Johnson Brass & Machine Foundry, Inc. Clean aluminum alloys and methods for forming such alloys
DE102019120862A1 (de) * 2019-08-01 2021-02-04 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Plattenwärmetauschers sowie Plattenwärmetauscher
CN110964957A (zh) * 2019-12-26 2020-04-07 北京工业大学 一种高强Al-Zn-Mg系合金深冷轧制与时效处理工艺
FR3114448A1 (fr) 2020-09-23 2022-03-25 Constellium Neuf-Brisach Fond de bac batteries pour vehicules electriques
CN114672674B (zh) * 2022-02-28 2024-03-15 中国第一汽车股份有限公司 一种铸造-轧制高强高韧铝硅合金及其制备方法
CN115305391B (zh) * 2022-08-10 2023-06-06 中南大学 一种低能耗铝硅镁合金及其制备方法

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DE1255928B (de) * 1966-01-13 1967-12-07 Metallgesellschaft Ag Verfahren zur Erzielung eines langanhaltenden Veredelungseffektes in Aluminium-Silicium-Legierungen
US4897124A (en) * 1987-07-02 1990-01-30 Sky Aluminium Co., Ltd. Aluminum-alloy rolled sheet for forming and production method therefor
JPH02159338A (ja) * 1988-12-12 1990-06-19 Kobe Steel Ltd Ａｌ−Ｓｉ系合金及びその製造方法
JP3183545B2 (ja) * 1991-10-09 2001-07-09 株式会社神戸製鋼所 ブレージングシート用高強度アルミニウムろう材
US5571347A (en) * 1994-04-07 1996-11-05 Northwest Aluminum Company High strength MG-SI type aluminum alloy

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006032699A1 (de) * 2006-07-14 2008-01-17 Bdw Technologies Gmbh & Co. Kg Aluminiumlegierung und deren Verwendung für ein Gussbauteil insbesondere eines Kraftwagens
DE102006032699B4 (de) * 2006-07-14 2010-09-09 Bdw Technologies Gmbh & Co. Kg Aluminiumlegierung und deren Verwendung für ein Gussbauteil insbesondere eines Kraftwagens
DE102009024190A1 (de) * 2008-06-10 2010-02-18 GM Global Technology Operations, Inc., Detroit Sequenzielles Auslagern von Aluminium-Silizium-Gusslegierungen
US8728258B2 (en) 2008-06-10 2014-05-20 GM Global Technology Operations LLC Sequential aging of aluminum silicon casting alloys
RU2659514C1 (ru) * 2017-08-17 2018-07-02 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Литейный алюминиево-кремниевый сплав

Also Published As

Publication number Publication date
WO1995034691A1 (fr) 1995-12-21
ATE171222T1 (de) 1998-10-15
FR2721041B1 (fr) 1997-10-10
CA2168946A1 (fr) 1995-12-21
JPH09501988A (ja) 1997-02-25
DE69504802T2 (de) 1999-03-25
EP0717784A1 (de) 1996-06-26
FR2721041A1 (fr) 1995-12-15
DE69504802D1 (de) 1998-10-22
US5837070A (en) 1998-11-17

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