EP2770071B9 - Alliage en aluminium pour la fabrication de demi-produits ou de composants pour véhicules automobiles, procédé de fabrication d'une bande d'alliage en aluminium à partir de cet alliage en aluminium ainsi que la bande d'alliage en aluminium et utilisations de celui-ci - Google Patents

Alliage en aluminium pour la fabrication de demi-produits ou de composants pour véhicules automobiles, procédé de fabrication d'une bande d'alliage en aluminium à partir de cet alliage en aluminium ainsi que la bande d'alliage en aluminium et utilisations de celui-ci Download PDF

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Publication number
EP2770071B9
EP2770071B9 EP13156100.3A EP13156100A EP2770071B9 EP 2770071 B9 EP2770071 B9 EP 2770071B9 EP 13156100 A EP13156100 A EP 13156100A EP 2770071 B9 EP2770071 B9 EP 2770071B9
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EP
European Patent Office
Prior art keywords
aluminium alloy
weight
aluminum alloy
alloy strip
content
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EP13156100.3A
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German (de)
English (en)
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EP2770071A1 (fr
EP2770071B2 (fr
EP2770071B1 (fr
Inventor
Olaf Dr. Engler
Henk-Jan Brinkman
Thomas Hentschel
Réginald Dupuis
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Speira GmbH
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Hydro Aluminium Rolled Products GmbH
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Application filed by Hydro Aluminium Rolled Products GmbH filed Critical Hydro Aluminium Rolled Products GmbH
Priority to ES13156100.3T priority Critical patent/ES2621871T3/es
Priority to EP13156100.3A priority patent/EP2770071B9/fr
Priority to PT131561003T priority patent/PT2770071T/pt
Priority to JP2015558448A priority patent/JP6143892B2/ja
Priority to ES14705528T priority patent/ES2590779T5/es
Priority to PCT/EP2014/053323 priority patent/WO2014128212A1/fr
Priority to KR1020157025451A priority patent/KR101656419B1/ko
Priority to CA2899991A priority patent/CA2899991C/fr
Priority to CN201480009934.XA priority patent/CN105008563B/zh
Priority to EP14705528.9A priority patent/EP2959028B2/fr
Priority to PT147055289T priority patent/PT2959028T/pt
Priority to RU2015139899A priority patent/RU2637458C2/ru
Publication of EP2770071A1 publication Critical patent/EP2770071A1/fr
Priority to US14/826,244 priority patent/US10501833B2/en
Publication of EP2770071B1 publication Critical patent/EP2770071B1/fr
Publication of EP2770071B2 publication Critical patent/EP2770071B2/fr
Publication of EP2770071B9 publication Critical patent/EP2770071B9/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/005—Casting ingots, e.g. from ferrous metals from non-ferrous metals
    • 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

Definitions

  • the invention relates to an aluminum alloy strip and uses therefor.
  • Semi-finished products and components for motor vehicles have to meet different requirements depending on their location and purpose in the motor vehicle, in particular with regard to their mechanical properties and their corrosion properties.
  • the mechanical properties are mainly determined by the rigidity, for example, which depends in particular on the shape of these parts.
  • the strength has a subordinate influence, although the materials used must not be too soft.
  • Good formability is very important, since the components and semi-finished products, for example in the manufacture of interior door parts, generally go through complex forming processes. This applies in particular to components that are manufactured in a one-piece sheet-metal shell construction, e.g. a sheet metal inner door with an integrated window frame area. By saving joining operations, such components have cost advantages compared to an attached profile solution for the window frame.
  • the corrosion resistance also plays a major role in motor vehicles, since motor vehicle components such as interior door parts are exposed to spray water, condensation water or condensation water. It is therefore desirable that the motor vehicle components have good resistance to various corrosion attacks, in particular to intergranular corrosion and to filiform corrosion.
  • Filiform corrosion is understood to be a type of corrosion that occurs in coated components and shows a thread-like course. Filiform corrosion occurs at high humidity in the presence of chloride ions.
  • Age-hardening AA 6xxx alloys have high strengths and good resistance to intergranular and filiform corrosion, but are much more difficult to form than AA 8006 and are therefore not particularly suitable for the production of complex components such as door interior parts.
  • the manufacture of semi-finished products and components from an AA 6xxx alloy is quite complex and expensive, since it requires continuous annealing as a special process step.
  • AA 5xxx alloys with a high magnesium content combine high strength with very good formability.
  • the formability does not come close to that of steel solutions, which leads to restrictions in the design of the components.
  • these alloys have a tendency to intergranular corrosion.
  • Steel materials can be formed very easily, but have a weight disadvantage with the same rigidity and are also susceptible to corrosion.
  • the present invention is based on the object of providing an aluminum alloy strip that is highly deformable, medium strength and corrosion-resistant. Furthermore should beneficial uses for the tape are provided. This object is achieved with an aluminum alloy strip and a use of the strip with the features of claims 1 and 8 and 9, respectively.
  • the aforementioned object is achieved according to the invention in that the alloy components of the aluminum alloy have the following proportions in percent by weight: Fe ⁇ 0.80%, Si ⁇ 0.50%, 0.90% ⁇ Mn ⁇ 1.50%, Mg ⁇ 0.25%, Cu ⁇ 0.20%, Cr ⁇ 0.05%, Ti ⁇ 0.05%, V ⁇ 0.05%, Zr ⁇ 0.05%,
  • the aluminum alloy of the aluminum alloy strip according to the invention is based on the alloy type AA 3xxx, in particular AA 3103 (AlMn1). Such alloys have very good formability, but are usually too soft for many applications such as components of motor vehicles. By adding certain alloying elements, in particular Mg and Cu, the strength of the aluminum alloy can be increased, but this also leads to a significant reduction in ductility and thus, in turn, to poorer formability.
  • the combined proportion of copper and magnesium in the aluminum alloy of the aluminum alloy strip according to the invention must be precisely controlled in order to achieve the desired mechanical properties, namely a yield strength R p0.2 of at least 45 MPa with a uniform elongation A g of at least 23% and an elongation at break A 80mm of at least 30%, with good corrosion resistance.
  • Tests have shown that with a combined proportion of Mg and Cu between 0.15 and 0.25% by weight, a combination of strength and formability of the aluminum alloy that is advantageous for the applications mentioned is achieved.
  • the combined proportion of magnesium and copper must be at least 0.17% by weight so that the aluminum alloy of the aluminum alloy strip according to the invention achieves sufficient strength, in particular with a yield strength R p0.2 of at least 45 MPa.
  • the combined proportion of Mg and Cu must be limited to at most 0.25% by weight, preferably at most 0.23% by weight, in particular at most 0.20% by weight, since otherwise uniform elongation A g and elongation at break A 80 mm decrease too much, namely in particular below 23% for A g or below 30% for A 80mm .
  • the combined proportion of magnesium and copper is generally understood to mean the sum of the two individual proportions for Mg and Cu in% by weight.
  • the aluminum alloy of the aluminum alloy strip according to the invention has a Cu content of a maximum of 0.20% by weight, preferably of a maximum of 0.10% by weight, in particular of a maximum of 0.05% by weight, and a magnesium content Share of a maximum of 0.25% by weight, preferably a maximum of 0.2% by weight.
  • the aluminum alloy preferably has an Mg content of at least 0.06% by weight, more preferably at least 0.10% by weight, in particular at least 0.15% by weight.
  • the above-described aluminum alloy of the aluminum alloy strip according to the invention has proven in tests to be highly deformable and of medium strength.
  • the aluminum alloy can be used particularly well for semi-finished products and components of motor vehicles, the manufacture of which involves complex forming processes.
  • the aluminum alloy in particular, such good formability can in part be achieved that semi-finished products and components made from the alloy can be formed on forming tools for steel components.
  • the aluminum alloy of the aluminum alloy strip according to the invention has good corrosion resistance.
  • no intergranular corrosion occurs in alloys of the AA 3xxx type, to which the above-mentioned alloy belongs.
  • the aluminum alloy of the aluminum alloy strip according to the invention showed in laboratory tests a considerably better resistance to filiform corrosion than, for example, AA 8006 alloys.
  • the aluminum alloy of the aluminum alloy strip according to the invention therefore has Ti, Cr, V and Zr proportions of a maximum of 0.05% by weight each and preferably in particular a Zr proportion of maximum 0.02% by weight. -% on.
  • the Mg proportion of the aluminum alloy of the aluminum alloy strip according to the invention is greater than the Cu proportion of the aluminum alloy. In this way, the corrosion behavior of the aluminum alloy of the aluminum alloy strip according to the invention, in particular with regard to filiform corrosion, can be further improved.
  • the formability of the aluminum alloy of the aluminum alloy strip according to the invention is further improved in a further embodiment in that the aluminum alloy has a Cr content 0.02% by weight, preferably 0.01% by weight, and / or a V content 0.02% by weight, preferably 0.01% by weight, and / or a Zr content of 0.01% by weight.
  • Titanium can be added during the continuous casting of the aluminum alloy of the aluminum alloy strip according to the invention as a grain refiner, for example in the form of Ti boride wire or rods.
  • the aluminum alloy therefore has a Ti content of at least 0.01% by weight, preferably of at least 0.015% by weight, in particular of at least 0.02% by weight.
  • the material properties of the aluminum alloy of the aluminum alloy strip according to the invention can be improved in a further embodiment in that the aluminum alloy has an Fe content of 0.7% by weight, preferably 0.6% by weight, in particular 0.5% by weight. %, having.
  • the further limitation of the Fe content prevents the susceptibility of the aluminum alloy of the aluminum alloy strip according to the invention to filiform corrosion from increasing.
  • the aluminum alloy of the aluminum alloy strip according to the invention preferably has an Si content of 0.4% by weight, preferably 0.3% by weight, in particular 0.25% by weight.
  • the further restriction of the Si content can prevent the formability from being excessively reduced.
  • the aluminum alloy of the aluminum alloy strip according to the invention also preferably has an Fe content of at least 0.10% by weight, preferably at least 0.25% by weight, in particular at least 0.40% by weight, and / or one Si content of at least 0.06% by weight, preferably at least 0.10% by weight, in particular at least 0.15% by weight.
  • the alloy components of the aluminum alloy have the following proportions in percent by weight: 0.40% ⁇ Fe ⁇ 0.70%, 0.10% ⁇ Si ⁇ 0.25%, 1.00% ⁇ Mn ⁇ 1.20%, Mg ⁇ 0.25%, Cu ⁇ 0.10%, Cr ⁇ 0.02%, Ti ⁇ 0.05%, V ⁇ 0.05%, Zr ⁇ 0.05%,
  • the formability of this alloy can be improved if the alloy has a V content 0.02% by weight and / or a Zr content ⁇ 0.01% by weight. Furthermore, the grain refinement can be improved by a Ti content of at least 0.01% by weight.
  • the alloy components of the aluminum alloy have the following proportions in percent by weight: 0.40% ⁇ Fe ⁇ 0.70%, 0.10% ⁇ Si ⁇ 0.25%, 1.00% ⁇ Mn ⁇ 1.20%, Mg ⁇ 0.20%, Cu ⁇ 0.05%, Cr ⁇ 0.02%, Ti ⁇ 0.05%, V ⁇ 0.05%, Zr ⁇ 0.05%,
  • the formability of this alloy can be improved if the alloy has a V content 0.02% by weight and / or a Zr content ⁇ 0.01% by weight. Furthermore, the grain refinement can be improved by a Ti content of at least 0.01% by weight.
  • this process can be used to produce an aluminum alloy strip that is highly formable, medium-strength and corrosion-resistant, in particular to intergranular corrosion and filiform corrosion. Furthermore, this process allows the aluminum alloy strip to be produced economically, since the process comprises standard process steps (i.e. continuous casting, homogenization, hot rolling, cold rolling, soft annealing) and does not necessarily require special, complex process steps such as continuous annealing.
  • the rolling billets are preferably cast using DC continuous casting. Alternatively, however, a strip casting process can also be used, for example.
  • the rolling bar By homogenizing the rolling bar at 480 ° C to 600 ° C, preferably at 500 ° C to 600 ° C, in particular at 530 ° C to 580 ° C, for at least 0.5 h it is achieved that the aluminum alloy strip after the final annealing has a fine-grain structure with good strength and formability. These properties can be further improved by homogenizing the rolling billet for at least 2 hours.
  • the hot rolling of the billet takes place at a temperature between 280 ° C and 500 ° C, preferably between 300 ° C and 400 ° C, in particular between 320 ° C and 380 ° C.
  • the rolling ingot is preferably rolled down to a thickness between 3 and 12 mm. This ensures that a sufficiently high degree of rolling, preferably of at least 70%, in particular of at least 80%, is achieved during the subsequent cold rolling, through which the strength, the formability and the elongation values of the aluminum alloy strip are also determined.
  • the cold rolling of the aluminum alloy strip can take place in one or more passes.
  • the aluminum alloy strip is preferably rolled to a final thickness in the range from 0.2 to 5 mm, preferably from 0.25 to 4 mm, in particular from 0.5 to 3.6 mm. With these thickness ranges, the desired material properties of the aluminum alloy strip can be achieved particularly well.
  • the final annealing of the aluminum strip enables a fine-grained, fully crystallized structure with good strength and formability to be achieved.
  • the final annealing is therefore a recrystallizing soft annealing.
  • the final annealing can in particular take place in a chamber furnace at 300 ° C to 400 ° C, preferably at 320 ° C to 360 ° C or in a continuous furnace at 450 ° C to 550 ° C, preferably at 470 ° C to 530 ° C.
  • the chamber furnace is less expensive to run and purchase than the continuous furnace.
  • the final glow in the chamber furnace is typically 1 hour or more.
  • This process step can improve the corrosion properties of the aluminum alloy strip produced or of an end product produced from this aluminum alloy strip.
  • the milling of the upper and / or lower side of the billet can take place, for example, after the casting and before the homogenization of the billet.
  • the at least two-stage homogenization allows a finer-grain structure with good strength and formability to be achieved after the final annealing. It has been shown that in this way, after the final annealing, in particular grain sizes, determined according to ASTM E1382, of less than 45 ⁇ m, in particular even of less than 35 ⁇ m, can be achieved.
  • the second homogenization is preferably carried out at the hot rolling temperature that the rolling ingot has at the beginning of the subsequent hot rolling step.
  • the upper and / or lower side of the rolling billet can be milled between the first homogenization and the second homogenization, particularly preferably after the rolling billet has cooled to room temperature.
  • the degree of rolling during cold rolling is at least 70%, preferably at least 80%. With this minimum degree of rolling, a fine-grain structure with good strength and formability can be achieved in the aluminum alloy strip after the final annealing.
  • the degree of rolling during cold rolling is a maximum of 90%, preferably a maximum of 85%. With this maximum degree of rolling, an excessive decrease in the elongation values of the aluminum alloy strip can be prevented.
  • the method can be carried out particularly economically in that the cold rolling is carried out without intermediate annealing. It has been found that the desired properties of the aluminum alloy strip can also be achieved without intermediate annealing. In the production of the aluminum alloy strip, there is also preferably no complex and expensive continuous annealing process.
  • the aluminum alloy strip is intermediate annealed between two cold rolling passes, in particular between the penultimate and the last cold rolling pass, in particular at one temperature from 300 ° C to 400 ° C, preferably at a temperature from 330 ° C to 370 ° C.
  • the intermediate annealing can take place, for example, in a chamber furnace.
  • the intermediate annealing is in particular an intermediate soft annealing of the strip.
  • the intermediate annealing is preferably carried out when the degree of rolling during cold rolling is more than 85%, in particular more than 90%.
  • the cold rolling and the intermediate annealing then preferably take place such that the degree of rolling after the intermediate annealing is less than 90%, in particular less than 85%.
  • the degree of rolling after the intermediate annealing is particularly preferably between 70% and 90%, in particular between 80% and 85%.
  • an aluminum alloy strip which is preferably produced using one of the methods described above , in that the aluminum alloy strip consists of the alloy described above and has a yield strength R p0.2 of at least 45 MPa, a uniform elongation A g of has at least 23% and an elongation at break A 80mm of at least 30%.
  • an aluminum alloy strip according to the invention can be produced with the alloy described, and in particular also by the method described above, which has the above-mentioned material properties and also good corrosion resistance to intergranular corrosion and filiform corrosion.
  • the aluminum alloy strip according to the invention is therefore particularly suitable for components and semi-finished products for motor vehicles, in particular for coated components such as interior door components.
  • the yield strength R p0.2 is determined according to DIN EN ISO 6892-1: 2009.
  • the uniform elongation A g and the elongation at break A 80 mm are also determined in accordance with DIN EN ISO 6892-1: 2009 with a flat tensile test in accordance with DIN EN ISO 6892-1: 2009, Appendix B, Form 2.
  • the aluminum alloy strip has a thickness in the range from 0.2 to 5 mm, preferably from 0.25 to 4 mm, in particular from 0.5 to 3.6 mm. With these thickness ranges, the desired material properties of the aluminum alloy strip can be achieved particularly well.
  • the above-described object is also achieved by using the above-described aluminum alloy strip according to the invention for semi-finished products or components for motor vehicles, in particular for coated components for motor vehicles. It has been found that with the aluminum alloy strip according to the invention, material properties can be achieved which are particularly advantageous for these uses. According to one embodiment, the aluminum alloy strip can be used particularly advantageously for interior door components of a motor vehicle.
  • the above-described object is also achieved through the use of a sheet metal, produced from an aluminum alloy strip according to the invention, as a component in the motor vehicle.
  • a sheet metal produced from an aluminum alloy strip according to the invention
  • the material properties of the aluminum alloy strip and thus also the material properties of a sheet made from it are particularly suitable for use in motor vehicles, especially as a door inner sheet.
  • the sheet metal produced from the aluminum alloy strip according to the invention is particularly preferably used for coated, in particular painted, components of a motor vehicle.
  • Fig. 1 shows a flow chart for a first embodiment of the method for producing an aluminum alloy strip according to the invention.
  • a rolling ingot is first cast from an aluminum alloy.
  • the casting can take place, for example, in continuous DC casting or in strip casting.
  • the rolling ingot is homogenized in step 4 at a temperature in the range from 480 ° C. to 600 ° C. for at least 0.5 h.
  • the rolling ingot is then hot rolled at a temperature in the range from 280 ° C. to 500 ° C. to a final thickness between 3 and 12 mm.
  • the hot-rolled strip, hot-rolled from the rolling ingot is then cold-rolled in step 8 to a final thickness of preferably 0.2 mm to 5 mm.
  • the aluminum alloy strip is finally annealed in step 10, for example in a chamber furnace at a temperature between 300 ° C and 400 ° C or in a continuous furnace between 450 ° C and 550 ° C.
  • the aluminum alloy strip can optionally be intermediately annealed in a step 14 during the cold rolling in step 8, preferably in a chamber furnace at a temperature between 300 ° C. and 400 ° C.
  • the intermediate annealing is particularly suitable for improving the material properties of the aluminum alloy strip when the hot strip is relatively thick and therefore the degree of rolling during cold rolling is more than 85%, in particular more than 90%.
  • the intermediate annealing is preferably carried out before the last cold rolling pass.
  • Figure 2 shows part of a flow chart for further exemplary embodiments of the method.
  • the process sequence of these exemplary embodiments essentially corresponds to the process sequence of FIG Figure 1 procedure described.
  • the rolling bar is homogenized according to Figure 2 but not in step 4, but in a step 16, which is divided into several individual steps.
  • Figure 2 shows possible sequences of the individual steps of step 16.
  • a first homogenization takes place at a temperature between 550 and 600 ° C for at least 0.5 h, preferably for at least 2 h.
  • the rolling ingot is cooled to the temperature of the second homogenization in the range of 450 ° C and 550 ° C, before the second homogenization at this temperature for at least 0.5 h, preferably for at least 2, in the subsequent step 22 h, takes place.
  • the rolling ingot can also first be cooled to room temperature in a step 24 and heated to the temperature for the second homogenization in a subsequent step 26. Between step 24 and step 26, the top and / or bottom of the rolling billet can optionally be milled.
  • aluminum alloy strips were then produced by the method described above.
  • a rolling ingot with a thickness of 600 mm was cast from each of these alloys 1 to 11 in DC continuous casting, which was then homogenized in two stages, initially for several hours at approx. 580 ° C and then for several hours at approx. 500 ° C.
  • the rolling bars were hot-rolled at approx. 500 ° C. to form aluminum alloy hot strips with a thickness of 4 to 8 mm.
  • These aluminum alloy hot strips were then each cold-rolled to a final thickness of 1.2 mm and finally subjected to a final recrystallizing anneal at 350 ° C. for 1 hour.
  • the aluminum alloy strips were then examined for their mechanical properties, in particular for their strength and formability.
  • Table 2 shows in the last line the corresponding material properties of an alloy of the type AA 8006, as is known from the prior art.
  • the good formability is shown in particular by the measured indentation value, which in the case of the aluminum alloy strips according to the invention preferably has a value SZ 32 ⁇ 15.8 mm, in particular 15.9 mm.
  • aluminum alloy strips no. 5-7 have only slightly poorer formability than the comparison alloy AA 8006 with the same strength.
  • aluminum alloy strips no. 5-7 have the advantage over alloy AA 8006 that they are considerably better Have corrosion resistance. In principle, intergranular corrosion does not occur with alloys of type AA 3xxx.
  • Table 2 show that the exemplary embodiments for the aluminum alloy strips according to the invention also achieve good values for the tensile strength R m and for the n and r values, which are in particular within the scope of conventional AA 3xxx alloys or even better.
  • FIG 4 shows a schematic representation of a typical component of a motor vehicle in the form of an inner door part.
  • Such door inner parts 40 are usually made of steel. However, steel components are heavy and susceptible to corrosion with the same rigidity.
  • the aluminum alloys described above such as aluminum alloys No. 5 - 7, can be used to produce aluminum alloy strips that are highly formable, medium-strength and very corrosion-resistant, in particular against intergranular corrosion and also against filiform corrosion.
  • the material properties of these aluminum alloy strips or the sheets made from them are therefore particularly favorable for the production of motor vehicle components, such as the inner door part 40.
  • the good resistance to filiform corrosion is particularly important when using aluminum alloys for coated, especially painted components, such as the door inner part 40, advantageous.
  • the components made from these aluminum alloy strips have better corrosion resistance than corresponding components made from steel or from an alloy of the AA 8006 type. At the same time, they have a significantly lower weight than components made from steel.

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  • Engineering & Computer Science (AREA)
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Claims (9)

  1. Bande en alliage d'aluminium caractérisé en ce que la bande en alliage d'aluminium est constitué d'un alliage d'aluminium, où les éléments de l'alliage d'aluminium présentent les parts suivantes en % en poids: Fe ≤ 0,80 %, Si ≤ 0,50 %, 0,90 % ≤ Mn ≤ 1,50 %, Mg ≤ 0,25 %, Cu ≤ 0,20 %, Cr ≤ 0,05 %, Ti ≤ 0,05 %, V ≤ 0,05 %, Zr ≤ 0,05 %,
    le reste étant aluminium, des éléments d'accompagnement inévitables, individuellement < 0,05 %, au total < 0,15 %,
    et la part combinée de Mg et de Cu satisfait à l'équation suivante: 0,17 % ≤ Mg + Cu ≤ 0,25 %
    Figure imgb0005
     et où la bande en alliage d'aluminium présente une limite élastique Rp0,2 d'au moins 45 MPa, un allongement uniforme Ag d'au moins 23 % et un allongement à la rupture A80mm d'au moins 30 %.
  2. Bande en alliage d'aluminium selon la revendication 1, caractérisé en ce que la bande en alliage d'aluminium présente une épaisseur de l'ordre de 0,2 mm à 5 mm.
  3. Bande en alliage d'aluminium selon la revendication 1 ou 2, caractérisé en ce que l'alliage d'aluminium comporte une part en Cu d'un maximum de 0,10 % en poids et/ou une part en Mg de 0,06 % en poids à 0,20 % en poids.
  4. Bande en alliage d'aluminium selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la part en Mg de l'alliage d'aluminium est supérieure à la part en Cu de l'alliage d'aluminium.
  5. Bande en alliage d'aluminium selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'alliage d'aluminium comporte une part en Cr ≤ 0,02 % en poids et/ou une part en V ≤ 0,02 % en poids et/ou une part en Zr ≤ 0,02 % en poids, notamment ≤ 0,01 % en poids.
  6. Bande en alliage d'aluminium selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'alliage d'aluminium comporte une part en Fe de 0,4 à 0,7 % en poids et/ou une part en Si de 0,1 à 0,25 % en poids et/ou une part en Mn de 1,0 à 1,2 % en poids.
  7. Bande en alliage d'aluminium selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'alliage d'aluminium comporte une part en Ti d'au moins 0,01 % en poids.
  8. Utilisation d'une bande en alliage d'aluminium selon l'une quelconque des revendications 1 à 7 pour des produits semi-finis ou d'éléments constitutifs de véhicules, notamment pour des éléments d'intérieur de portière.
  9. Utilisation d'une tôle, fabriquée en une bande en alliage d'aluminium selon l'une quelconque des revendications 1 à 7 en tant qu'élément dans le véhicule automobile, notamment en tant que tôle d'intérieur de portière.
EP13156100.3A 2013-02-21 2013-02-21 Alliage en aluminium pour la fabrication de demi-produits ou de composants pour véhicules automobiles, procédé de fabrication d'une bande d'alliage en aluminium à partir de cet alliage en aluminium ainsi que la bande d'alliage en aluminium et utilisations de celui-ci Active EP2770071B9 (fr)

Priority Applications (13)

Application Number Priority Date Filing Date Title
ES13156100.3T ES2621871T3 (es) 2013-02-21 2013-02-21 Aleación de aluminio para la fabricación de productos semiacabados o componentes para automóviles, procedimiento para la fabricación de una cinta de aleación de aluminio de esta aleación de aluminio así como cinta de aleación de aluminio y usos de la misma
EP13156100.3A EP2770071B9 (fr) 2013-02-21 2013-02-21 Alliage en aluminium pour la fabrication de demi-produits ou de composants pour véhicules automobiles, procédé de fabrication d'une bande d'alliage en aluminium à partir de cet alliage en aluminium ainsi que la bande d'alliage en aluminium et utilisations de celui-ci
PT131561003T PT2770071T (pt) 2013-02-21 2013-02-21 Liga de alumínio para a produção de produtos semiacabados ou componentes para automóveis, procedimento para a produção de uma tira de alumínio a partir dessa liga de alumínio bem como tira de liga de alumínio e utilizações da mesma
CA2899991A CA2899991C (fr) 2013-02-21 2014-02-20 Alliage d'aluminium servant a fabriquer des demi-produits ou des composants de vehicules a moteur, procede de fabrication d'un feuillard a partir de cet alliage d'aluminium, ainsique feuillard d'alliage d'aluminium et son utilisation
RU2015139899A RU2637458C2 (ru) 2013-02-21 2014-02-20 Алюминиевый сплав для изготовления полуфабрикатов или деталей автомобилей, способ изготовления полосы алюминиевого сплава из указанного алюминиевого сплава, полоса алюминиевого сплава и ее применение
ES14705528T ES2590779T5 (es) 2013-02-21 2014-02-20 Uso de una aleación de aluminio para la fabricación de productos semiacabados o componentes para automóviles
PCT/EP2014/053323 WO2014128212A1 (fr) 2013-02-21 2014-02-20 Alliage d'aluminium servant à fabriquer des demi-produits ou des composants de véhicules à moteur, procédé de fabrication d'un feuillard à partir de cet alliage d'aluminium, ainsi que feuillard d'alliage d'aluminium et son utilisation
KR1020157025451A KR101656419B1 (ko) 2013-02-21 2014-02-20 차량용 반제품 또는 부품을 제조하기 위한 알루미늄 합금, 알루미늄 합금으로 구성된 알루미늄 합금 스트립 제조 방법, 알루미늄 합금 스트립 및 그 용도
JP2015558448A JP6143892B2 (ja) 2013-02-21 2014-02-20 自動車用半製品又は部品を製造するためのアルミニウム合金、アルミニウム合金薄板を前記アルミニウム合金から製造する方法、並びにアルミニウム合金薄板及びそのための使用
CN201480009934.XA CN105008563B (zh) 2013-02-21 2014-02-20 用于制造汽车半成品或构件的铝合金、由其制造铝合金带的方法以及铝合金带及其应用
EP14705528.9A EP2959028B2 (fr) 2013-02-21 2014-02-20 Utilisation d'un alliage en aluminium pour la fabrication de demi-produits ou de composants pour véhicules automobiles
PT147055289T PT2959028T (pt) 2013-02-21 2014-02-20 Liga de alumínio para a produção de produtos semiacabados ou componentes para automóveis, procedimento para a produção de uma tira de alumínio a partir desta liga de alumínio bem como tira de liga de alumínio e utilização da mesma
US14/826,244 US10501833B2 (en) 2013-02-21 2015-08-14 Aluminum alloy for producing semi-finished products or components for motor vehicles, method for producing an aluminium alloy strip from said aluminium alloy, and aluminium alloy strip and uses therefore

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KR101656419B1 (ko) 2016-09-09
JP6143892B2 (ja) 2017-06-07
RU2637458C2 (ru) 2017-12-04
EP2770071A1 (fr) 2014-08-27
CN105008563B (zh) 2018-05-25
CN105008563A (zh) 2015-10-28
EP2959028B2 (fr) 2019-07-10
ES2590779T5 (es) 2020-03-11
US10501833B2 (en) 2019-12-10
PT2770071T (pt) 2017-04-19
EP2770071B2 (fr) 2020-04-01
KR20150119369A (ko) 2015-10-23
CA2899991C (fr) 2017-05-02
RU2015139899A (ru) 2017-03-24
WO2014128212A1 (fr) 2014-08-28
ES2590779T3 (es) 2016-11-23
EP2959028A1 (fr) 2015-12-30
CA2899991A1 (fr) 2014-08-28
EP2959028B1 (fr) 2016-07-27
US20150368771A1 (en) 2015-12-24
EP2770071B1 (fr) 2017-02-01
ES2621871T3 (es) 2017-07-05
PT2959028T (pt) 2016-09-19
JP2016514206A (ja) 2016-05-19

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