EP0811700B1 - 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
EP0811700B1
EP0811700B1 EP97810320A EP97810320A EP0811700B1 EP 0811700 B1 EP0811700 B1 EP 0811700B1 EP 97810320 A EP97810320 A EP 97810320A EP 97810320 A EP97810320 A EP 97810320A EP 0811700 B1 EP0811700 B1 EP 0811700B1
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EP
European Patent Office
Prior art keywords
alloy
max
weight
annealing
weldable
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
EP97810320A
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German (de)
English (en)
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EP0811700A1 (fr
Inventor
Jürgen Timm
Peter Furrer
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
Alcan Technology and Management Ltd
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Application filed by Alcan Technology and Management Ltd filed Critical Alcan Technology and Management Ltd
Publication of EP0811700A1 publication Critical patent/EP0811700A1/fr
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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
    • C22F1/047—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
    • 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
    • C22F1/043—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
    • 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 deep-drawn and weldable AlMgSi type aluminum alloy in the form of strips or sheets for the production of inner skin parts of a body, especially an automobile body.
  • As part of the invention is also a method for producing the Alloy and an inner skin part produced by deep drawing.
  • AlMgSi alloy is known from JP-A-05 112840, which are used to manufacture automotive body panels by press forming and that under paint baking conditions can be cured.
  • the alloy also contains Aluminum 0.4 to 1.5% Mg, 0.24 to 1.5% Si, 0.12 to 1.5% Cu, 0.005 to 0.15% Ti and max. 0.25% Fe.
  • the alloy is also intended to create the possibility the overall component consisting of outer and inner skin parts of body parts in the interior material recycle (production scrap and end-of-life vehicles), taking minor contaminants from other automotive materials aluminum-based, steel, copper wires, etc. should be.
  • 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 * 0.80 0.40 B * 0.80 0.55 C * 0.95 0.55 D * 0.95 0.40 are limited and the alloy in addition Cu 0.15-0.45 Mn 0.05-0.20 Fe 0.05 to 0.55 Zn 0.05-0.50 optionally still 0.05-0.20 as well as further alloy elements individually max. 0.10, total max. 0.30 and aluminum as the rest.
  • the copper content of the alloy according to the invention is preferably between 0.2 and 0.4% by weight.
  • zinc By adding 0.05 to 0.4% by weight, in particular 0.1 up to 0.3% by weight zinc can further increase the strength combined with a slight improvement in formability can be achieved.
  • a vanadium content of 0.05 to 0.2% by weight leads to a further improvement in the forming behavior.
  • the average grain size in the sheet should not exceed 80 ⁇ m and is preferably less than 60 microns.
  • the alloy according to the invention is carried out in the usual way Continuous or strip casting, hot and cold rolling into one Sheet or strip processed.
  • Continuous or strip casting hot and cold rolling into one Sheet or strip processed.
  • the solution annealing in one Continuous belt furnace in a temperature range of 520 ° C up to 580 ° C or up to the solidus temperature of the alloy is carried out.
  • Optimal mechanical strength values and properties can be achieved if the alloy is preferably at the latest 60 min after the solution annealing of a so-called stabilization annealing of a maximum of 24h in a temperature range from 50 ° C to 150 ° C.
  • the alloy can be rolled to final thickness, solution annealed and then a temperature range of 160 ° C to 220 ° C can be thermoset. It is advantageous also a maximum of 25% deformation after solution annealing and before final annealing in the temperature range mentioned.
  • the alloy according to the invention is particularly suitable for the production of deep-drawn inner skin parts of a body, especially an automobile body.
  • Ac-120 is the preferred material for outer skin parts.
  • 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, a preferred area by 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 is limited.
  • a B C (not according to the invention) Si 0.85 0.94 0.69 mg 0.40 0.40 0.37 Cu 0.40 0.25 0.38 Mn 0.08 0.08 0.06 Fe 0.25 0.25 0.23 with aluminum as the remainder and a standard body sheet alloy AA6016 (Ac-120) used as a comparison alloy for outer skin applications were processed in the usual way by continuous casting, hot and cold rolling to a sheet with a thickness of 1.3 mm.
  • the mechanical strength values and properties of the alloy according to the invention and the comparison alloy determined on sheet metal samples are compared below.

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  • 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)
  • Continuous Casting (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Claims (9)

  1. Alliage d'aluminium de type AlMgSi soudable et apte à l'emboutissage profond sous la forme de bandes ou tôles pour la fabrication d'éléments de revêtement intérieur d'une carrosserie, en particulier d'une carrosserie d'automobile,
       les teneurs (% en poids) des éléments d'alliage Mg et Si étant limitées par les sommets A* B* C* D* de coordonnées Si Mg A* 0,80 0,40 B* 0,80 0,55 C* 0,95 0,55 D* 0,95 0,40
    et en ce que l'alliage contient en outre Cu 0,15 - 0,45 Mn 0,05 - 0,20 Fe 0,05 - 0,55 Zn 0,05 - 0,50 éventuellement également V 0,05 - 0,20
       ainsi que d'autres éléments d'alliage individuellement max. 0,10, au total max. 0,30 et de l'aluminium pour le reste.
  2. Alliage suivant la revendication 1, caractérisé en ce qu'il contient de 0,2 à 0, 4 % en poids de Cu.
  3. Alliage suivant la revendication 1 ou 2, caractérisé en ce qu'il contient de 0,05 à 0,4 % en poids, en particulier de 0,1 à 0,3 % en poids, de Zn.
  4. Alliage suivant l'une des revendications 1 à 3, caractérisé en ce que la granulométrie moyenne est de max. 80 µm, de préférence de max. 60 µm.
  5. Procédé de fabrication d'un alliage suivant l'une des revendications 1 à 4 par coulée continue ou coulée en bande, laminage à chaud et à froid, par lequel un traitement thermique de mise en solution étant effectué dans un four continu pour feuillards à une température de l'ordre de 520°C à 580°C ou jusqu'à température de solidus de l'alliage.
  6. Procédé suivant la revendication 5, caractérisé en ce que l'alliage est soumis après le traitement thermique, de préférence au plus tard 60 min après le traitement thermique de mise en solution, à un recuit de stabilisation de maximum 24h à une température de l'ordre de 50°C à 150°C.
  7. Procédé suivant la revendication 5 ou 6, caractérisé en ce que l'alliage est soumis à formage de max. 25% après le traitement thermique de mise en solution et ensuite durci à chaud à une température de l'ordre de 160°C à 220°C.
  8. Procédé suivant la revendication 7, caractérisé en ce que le recuit final est exécuté comme cuisson de la laque.
  9. Pièces de revêtement intérieur d'une carrosserie, en particulier d'une carrosserie automobile, fabriquées par emboutissage profond à partir d'un alliage suivant l'une des revendications 1 à 4.
EP97810320A 1996-06-04 1997-05-26 Alliage d'aluminium du type AlMgSi soudable et apte à l'emboutissage profond Expired - Lifetime EP0811700B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH01401/96A CH690916A5 (de) 1996-06-04 1996-06-04 Tiefziehbare und schweissbare Aluminiumlegierung vom Typ AlMgSi.
CH140196 1996-06-04
CH1401/96 1996-06-04

Publications (2)

Publication Number Publication Date
EP0811700A1 EP0811700A1 (fr) 1997-12-10
EP0811700B1 true EP0811700B1 (fr) 2002-06-12

Family

ID=4209568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810320A Expired - Lifetime EP0811700B1 (fr) 1996-06-04 1997-05-26 Alliage d'aluminium du type AlMgSi soudable et apte à l'emboutissage profond

Country Status (5)

Country Link
EP (1) EP0811700B1 (fr)
AT (1) ATE219158T1 (fr)
CH (1) CH690916A5 (fr)
DE (1) DE59707470D1 (fr)
ES (1) ES2177920T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999053110A1 (fr) * 1998-04-08 1999-10-21 The Furukawa Electric Co., Ltd. Procede de fabrication d'alliage d'aluminium pour materiaux a aplatir et materiaux a aplatir d'alliage d'aluminium pour automobiles
CH693673A5 (de) * 1999-03-03 2003-12-15 Alcan Tech & Man Ag Verwendung einer Aluminiumlegierung vom Typ AlMgSi zur Herstellung von Strukturbauteilen.
FR2835533B1 (fr) * 2002-02-05 2004-10-08 Pechiney Rhenalu TOLE EN ALLIAGE Al-Si-Mg POUR PEAU DE CARROSSERIE AUTOMOBILE
US20050000609A1 (en) * 2002-12-23 2005-01-06 Butler John F. Crash resistant aluminum alloy sheet products and method of making same
EP1533394A1 (fr) * 2003-11-20 2005-05-25 Alcan Technology & Management Ltd. Composant de carrosserie pour voiture
EP2156945A1 (fr) 2008-08-13 2010-02-24 Novelis Inc. Produit de tôle plaquée automobile
CN104532080A (zh) * 2014-12-31 2015-04-22 东莞市东兴铝业有限公司 一种汽车排气管用铝合金材料及其制备方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135633A (en) * 1959-09-08 1964-06-02 Duralumin Heat treatment process improving the mechanical properties of aluminiummagnesium-silicon alloys
US4082578A (en) * 1976-08-05 1978-04-04 Aluminum Company Of America Aluminum structural members for vehicles
CH624147A5 (fr) * 1976-12-24 1981-07-15 Alusuisse
DE3243371A1 (de) * 1982-09-13 1984-03-15 Schweizerische Aluminium AG, 3965 Chippis Aluminiumlegierung
US4808247A (en) * 1986-02-21 1989-02-28 Sky Aluminium Co., Ltd. Production process for aluminum-alloy rolled sheet
FR2601040B1 (fr) * 1986-07-07 1988-09-02 Cegedur Alliage d'aluminium chaudronnable et soudable et son procede de fabrication
JPH0674480B2 (ja) * 1987-09-03 1994-09-21 本田技研工業株式会社 溶接性、耐糸錆性、成形性及び焼付硬化性に優れた成形用及び溶接用Ａ▲ｌ▼合金板及びその製造法
JPH05112840A (ja) * 1991-10-18 1993-05-07 Nkk Corp プレス成形性に優れた焼付硬化性Ａｌ−Ｍｇ−Ｓｉ系合金板及びその製造方法
CH685707A5 (de) * 1991-12-16 1995-09-15 Alusuisse Lonza Services Ag Karosserieblech.
JP2626958B2 (ja) * 1993-03-16 1997-07-02 スカイアルミニウム株式会社 成形性および焼付硬化性に優れたアルミニウム合金板の製造方法
KR100374104B1 (ko) * 1994-09-06 2003-04-18 알칸 인터내셔널 리미티드 알루미늄합금시이트제조방법
CH688379A5 (de) * 1994-11-29 1997-08-29 Alusuisse Lonza Services Ag Tiefziehbare und schweissbare Aluminiumlegierung vom Typ AlMgSi

Also Published As

Publication number Publication date
CH690916A5 (de) 2001-02-28
EP0811700A1 (fr) 1997-12-10
ES2177920T3 (es) 2002-12-16
ATE219158T1 (de) 2002-06-15
DE59707470D1 (de) 2002-07-18

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