EP0714993A1 - Alliage d'aluminium du type AlMgSi soudable et apte à l'emboutissage profond - Google Patents

Alliage d'aluminium du type AlMgSi soudable et apte à l'emboutissage profond Download PDF

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Publication number
EP0714993A1
EP0714993A1 EP95810691A EP95810691A EP0714993A1 EP 0714993 A1 EP0714993 A1 EP 0714993A1 EP 95810691 A EP95810691 A EP 95810691A EP 95810691 A EP95810691 A EP 95810691A EP 0714993 A1 EP0714993 A1 EP 0714993A1
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EP
European Patent Office
Prior art keywords
alloy
max
weight
alloy according
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
EP95810691A
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German (de)
English (en)
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EP0714993B1 (fr
Inventor
Peter Furrer
Jürgen Timm
Margarete Bloeck
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.)
3A Composites International AG
Original Assignee
Alusuisse Lonza Services Ltd
Alusuisse Technology and Management Ltd
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4259491&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0714993(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Alusuisse Lonza Services Ltd, Alusuisse Technology and Management Ltd filed Critical Alusuisse Lonza Services Ltd
Publication of EP0714993A1 publication Critical patent/EP0714993A1/fr
Application granted granted Critical
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Anticipated expiration legal-status Critical
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    • 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
    • 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
    • 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
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
    • 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
    • C22F1/047—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 magnesium as the next major constituent

Definitions

  • the invention relates to a deep-drawable and weldable aluminum alloy of the AlMgSi type in the form of strips or sheets, and to a method for the production thereof.
  • the inventor has set himself the task of creating an alloy of the type mentioned at the outset, which, with good strength, exhibits improved forming behavior compared to alloys according to the prior art, with the least possible springback after deep drawing.
  • the contents (% by weight) of the alloy elements Mg and Si by the trapezoid ABCDE with the coordinates Si Mg A 0.50 0.35 B 0.50 0.60 C. 0.95 0.60 D 0.95 0.40 E 0.80 0.35 are limited and the alloy in addition Cu 0.05 - 0.4 Mn Max. 0.15 Fe Max. 0.25 as well as further alloy elements individually max. 0.05, total max. 0.15 and aluminum as the rest.
  • the alloy composition according to the invention enables the production of deep-drawn body parts with optimal properties with regard to mechanical strength and forming behavior.
  • the contents (% by weight) of the alloy elements Mg and Si through the corner points A'B'C'D 'with the coordinates Si Mg A ' 0.50 0.35 B ' 0.50 0.50 C ' 0.75 0.50 D ' 0.75 0.35 limited.
  • the contents (% by weight) of the alloy elements Mg and Si through the corner points A "B" C “D” with the coordinates Si Mg A '' 0.55 0.35 B '' 0.55 0.45 C '' 0.7 0.45 D '' 0.7 0.35 limited.
  • the copper content of the alloy according to the invention is preferably between 0.2 and 0.4% by weight.
  • the average grain size in the sheet should not exceed 80 ⁇ m and is preferably less than 60 ⁇ m.
  • the alloy according to the invention is processed in the usual way by continuous casting or strip casting, hot and cold rolling to form a sheet or strip.
  • the solution annealing is carried out in a continuous belt furnace in a temperature range from 520 ° C. to 580 ° C. or up to the solidus temperature of the alloy.
  • Optimal mechanical strength values and properties can be achieved if the alloy preferably at the latest 60 minutes after the solution annealing of a so-called stabilization annealing 24 hours in a temperature range of 50 ° C to 150 ° C.
  • the alloy can be rolled to its final thickness, solution-annealed and then heat-cured in a temperature range from 160 ° C to 220 ° C. Forming by a maximum of 25% after solution annealing and before final annealing in the temperature range mentioned is also advantageous.
  • the alloy according to the invention is particularly suitable for producing deep-drawn body parts.
  • the sheets were deep-drawn in practical tests and subjected to further forming operations that are common in the manufacture of body parts.
  • the practical tests carried out have confirmed the expected improvements in forming behavior with excellent strength values.
  • the alloy according to the invention in particular has a lower yield strength and higher n or r values, i.e. a lower springback and improved stretching and deep drawing properties.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Continuous Casting (AREA)
EP19950810691 1994-11-29 1995-11-03 Alliage d'aluminium du type AlMgSi soudable et apte à l'emboutissage profond Expired - Lifetime EP0714993B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH360094 1994-11-29
CH03600/94A CH688379A5 (de) 1994-11-29 1994-11-29 Tiefziehbare und schweissbare Aluminiumlegierung vom Typ AlMgSi
CH3600/94 1994-11-29

Publications (2)

Publication Number Publication Date
EP0714993A1 true EP0714993A1 (fr) 1996-06-05
EP0714993B1 EP0714993B1 (fr) 2000-03-08

Family

ID=4259491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950810691 Expired - Lifetime EP0714993B1 (fr) 1994-11-29 1995-11-03 Alliage d'aluminium du type AlMgSi soudable et apte à l'emboutissage profond

Country Status (3)

Country Link
EP (1) EP0714993B1 (fr)
CH (1) CH688379A5 (fr)
DE (1) DE59507951D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0811700A1 (fr) * 1996-06-04 1997-12-10 Alusuisse Technology & Management AG Alliage d'aluminium du type AlMgSi soudable et apte à l'emboutissage profond
WO1998014626A1 (fr) * 1996-09-30 1998-04-09 Alcan International Limited Alliage d'aluminium destine a la fabrication de produits lamines
EP0912772A1 (fr) * 1996-07-04 1999-05-06 Comalco Aluminium Limited Alliage d'aluminium de la serie 6xxx
WO2000052216A1 (fr) * 1999-03-03 2000-09-08 Alusuisse Technology & Management Ag COMPOSANT STRUCTURAL CONSTITUE D'UN ALLIAGE D'ALUMINIUM DU TYPE AlMgSi
DE102004022817A1 (de) * 2004-05-08 2005-12-01 Erbslöh Ag Dekorativ anodisierbare, gut verformbare, mechanisch hoch belastbare Aluminiumlegierung, Verfahren zu deren Herstellung und Aluminiumprodukt aus dieser Legierung

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2360684A1 (fr) * 1976-08-05 1978-03-03 Aluminum Co Of America Elements de structure ameliores en aluminium, pour vehicules automobiles
EP0259232A1 (fr) * 1986-07-07 1988-03-09 Pechiney Rhenalu Alliage d'aluminium chaudronnable et soudable et son procédé de fabrication
EP0300927A1 (fr) * 1987-06-23 1989-01-25 Pechiney Rhenalu Alliage à base d'AL pour boitage et procédé d'obtention
DE3829911A1 (de) * 1987-09-03 1989-03-16 Kobe Steel Ltd Aluminiumblech mit verbesserter schweissfaehigkeit, filiformer korrosionsfestigkeit, waermebehandlungshaertbarkeit und verformbarkeit sowie verfahren zur herstellung desselben
EP0375572A1 (fr) * 1988-12-21 1990-06-27 Pechiney Rhenalu Alliage d'aluminium pour emboutissage , contenant du silicium, du magnésium et du cuivre
JPH0441648A (ja) * 1990-06-07 1992-02-12 Sumitomo Light Metal Ind Ltd 焼付硬化性に優れた成形加工用高強度アルミニウム合金
JPH0570908A (ja) * 1991-05-01 1993-03-23 Sumitomo Light Metal Ind Ltd 成形加工用アルミニウム合金材の製造法
EP0548007A1 (fr) * 1991-12-16 1993-06-23 Alusuisse-Lonza Services Ag Tôle de carrosserie
JPH05279780A (ja) * 1992-03-31 1993-10-26 Furukawa Alum Co Ltd 曲げ加工性に優れた中強度アルミニウム合金およびその製造方法
WO1995014113A1 (fr) * 1993-11-17 1995-05-26 Pechiney Rhenalu Alliage de type aluminium-silicon-magnesium a ductilite et emboutissabilite ameliorees et procede d'obtention

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2360684A1 (fr) * 1976-08-05 1978-03-03 Aluminum Co Of America Elements de structure ameliores en aluminium, pour vehicules automobiles
EP0259232A1 (fr) * 1986-07-07 1988-03-09 Pechiney Rhenalu Alliage d'aluminium chaudronnable et soudable et son procédé de fabrication
EP0300927A1 (fr) * 1987-06-23 1989-01-25 Pechiney Rhenalu Alliage à base d'AL pour boitage et procédé d'obtention
DE3829911A1 (de) * 1987-09-03 1989-03-16 Kobe Steel Ltd Aluminiumblech mit verbesserter schweissfaehigkeit, filiformer korrosionsfestigkeit, waermebehandlungshaertbarkeit und verformbarkeit sowie verfahren zur herstellung desselben
EP0375572A1 (fr) * 1988-12-21 1990-06-27 Pechiney Rhenalu Alliage d'aluminium pour emboutissage , contenant du silicium, du magnésium et du cuivre
JPH0441648A (ja) * 1990-06-07 1992-02-12 Sumitomo Light Metal Ind Ltd 焼付硬化性に優れた成形加工用高強度アルミニウム合金
JPH0570908A (ja) * 1991-05-01 1993-03-23 Sumitomo Light Metal Ind Ltd 成形加工用アルミニウム合金材の製造法
EP0548007A1 (fr) * 1991-12-16 1993-06-23 Alusuisse-Lonza Services Ag Tôle de carrosserie
JPH05279780A (ja) * 1992-03-31 1993-10-26 Furukawa Alum Co Ltd 曲げ加工性に優れた中強度アルミニウム合金およびその製造方法
WO1995014113A1 (fr) * 1993-11-17 1995-05-26 Pechiney Rhenalu Alliage de type aluminium-silicon-magnesium a ductilite et emboutissabilite ameliorees et procede d'obtention

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 219 (C - 0943) 22 May 1992 (1992-05-22) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 394 (C - 1088) 23 July 1993 (1993-07-23) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 068 (C - 1161) 4 February 1994 (1994-02-04) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0811700A1 (fr) * 1996-06-04 1997-12-10 Alusuisse Technology & Management AG Alliage d'aluminium du type AlMgSi soudable et apte à l'emboutissage profond
CH690916A5 (de) * 1996-06-04 2001-02-28 Alusuisse Tech & Man Ag Tiefziehbare und schweissbare Aluminiumlegierung vom Typ AlMgSi.
EP0912772A1 (fr) * 1996-07-04 1999-05-06 Comalco Aluminium Limited Alliage d'aluminium de la serie 6xxx
EP0912772A4 (fr) * 1996-07-04 1999-09-29 Comalco Alu Alliage d'aluminium de la serie 6xxx
US6364969B1 (en) 1996-07-04 2002-04-02 Malcolm James Couper 6XXX series aluminium alloy
EP1840234A1 (fr) 1996-07-04 2007-10-03 Comalco Aluminium Limited Alliage d'aluminium de série 6XXX
WO1998014626A1 (fr) * 1996-09-30 1998-04-09 Alcan International Limited Alliage d'aluminium destine a la fabrication de produits lamines
WO2000052216A1 (fr) * 1999-03-03 2000-09-08 Alusuisse Technology & Management Ag COMPOSANT STRUCTURAL CONSTITUE D'UN ALLIAGE D'ALUMINIUM DU TYPE AlMgSi
CH693673A5 (de) * 1999-03-03 2003-12-15 Alcan Tech & Man Ag Verwendung einer Aluminiumlegierung vom Typ AlMgSi zur Herstellung von Strukturbauteilen.
DE102004022817A1 (de) * 2004-05-08 2005-12-01 Erbslöh Ag Dekorativ anodisierbare, gut verformbare, mechanisch hoch belastbare Aluminiumlegierung, Verfahren zu deren Herstellung und Aluminiumprodukt aus dieser Legierung

Also Published As

Publication number Publication date
EP0714993B1 (fr) 2000-03-08
DE59507951D1 (de) 2000-04-13
CH688379A5 (de) 1997-08-29

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