WO2022248465A1 - Alliage a6xxx pour produits extrudés à haute résistance présentant une aptitude élevée au traitement - Google Patents

Alliage a6xxx pour produits extrudés à haute résistance présentant une aptitude élevée au traitement Download PDF

Info

Publication number
WO2022248465A1
WO2022248465A1 PCT/EP2022/064040 EP2022064040W WO2022248465A1 WO 2022248465 A1 WO2022248465 A1 WO 2022248465A1 EP 2022064040 W EP2022064040 W EP 2022064040W WO 2022248465 A1 WO2022248465 A1 WO 2022248465A1
Authority
WO
WIPO (PCT)
Prior art keywords
extruded profile
billet
temperature
profile according
mpa
Prior art date
Application number
PCT/EP2022/064040
Other languages
English (en)
Inventor
Mehdi BEN TAHAR
Roland TIRARD-COLLET
Martin Jarrett
Original Assignee
Constellium Singen Gmbh
Constellium Extrusion Levice S.R.O.
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 Constellium Singen Gmbh, Constellium Extrusion Levice S.R.O. filed Critical Constellium Singen Gmbh
Priority to CA3218216A priority Critical patent/CA3218216A1/fr
Priority to EP22730257.7A priority patent/EP4347907A1/fr
Priority to CN202280033516.9A priority patent/CN117280059A/zh
Publication of WO2022248465A1 publication Critical patent/WO2022248465A1/fr

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/002—Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B21C23/142—Making profiles
    • 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 present invention relates to a 6XXX series aluminium extrusion alloy, particularly useful for the automotive industry.
  • Aluminium alloys are used in the form of extrusions for various applications including automotive usages.
  • Cu containing AA6xxx aluminium alloys series, such as AA6013 are known to combine interesting chemical and mechanical properties such as strength, crashabilty and even corrosion resistance.
  • the aluminium alloys can be processed easily and with high productivity, without surface defects such as those resulting from incipient melting or structural defects such as peripheral coarse grain (PCG) which may appear during extrusion or following thermal treatment step.
  • PCG peripheral coarse grain
  • the patent application W02015086116 discloses a manufacturing process for obtaining extruded products made from a 6xxx aluminium alloy, comprising the following steps: a) homogenizing a billet cast from said aluminium alloy; b) heating the said homogenised cast billet; c) extruding the said billet through a die to form at least a solid or hollow extruded product; d) quenching the extruded product down to room temperature; e) optionally stretching the extruded product to obtain a plastic deformation typically between 0,5% and 5%; f) ageing the extruded product without applying on the extruded product any separate post-extrusion solution heat treatment between steps d) and f) characterised in that: i) the heating step b) is a solution heat treatment where: b1) the cast billet is heated to a temperature between Ts-15°C and Ts, wherein Ts is the solidus temperature of the said aluminium alloy; b2) the billet is cooled until billet mean temperature reaches
  • the patent application US2011155291 discloses a high-strength aluminium alloy extruded product containing 0.6 to 1.2% of Si, 0.8 to 1.3% of Mg, and 1.3 to 2.1% of Cu while satisfying the following conditional expressions (1), (2), (3) and (4), 3%£iSi %+Mg %+Cu %£ ⁇ % (1) Mg % ⁇ 1.7xSi % (2) Mg %+Si % ⁇ 2.7% (3) Cu %/2 ⁇ Mg % ⁇ (Cu %/2)+0.6% (4) and further containing 0.04 to 0.35% of Cr, and 0.05% or less of Mn as an impurity, with the balance being aluminium and unavoidable impurities.
  • the cross section of the extruded product has a recrystallized microstructure with an average grain size of 500 pm or less.
  • thermomechanical ageing consisting in i) an artificial preageing treatment with a duration t1 at a temperature T 1 selected to increase the yield strength of said extrusion between 5% and 20%, said temperature T1 being typically between 120°C and 180°C and said duration t1 being typically between 1 and 100 hours, to obtain an artificially preaged extrusion, ii) a plastic deformation of said artificially preaged extrusion between 1%> and 80%> to obtain a deformed extrusion, iii) a final artificial ageing treatment of said deformed extrusion with a duration t2 at a temperature T2, said temperature T2 being typically between 140°C and 200°C and said the duration t2 being typically between 1 and 100 hours.
  • TMA thermomechanical ageing
  • the patent application FR2360684A1 discloses aluminium alloy products containing essentially by weight, 0.4 to 1.2% Si, 0.4 to 1.1% Mg, 0.2 to 0.8% Mn, 0.03 to 0.35% Fe, 0.1 to 0.6% Cu, the remainder being essentially aluminium.
  • the alloy can be homogenized at a temperature of finally 480 and 595 degrees C and then is worked in sheets or profiles which are heat treated to form a solid solution, then which are cooled and aged to a T4 temper before their transformation into final products which can then be reinforced by heating or aging to the T6 temper.
  • the patent application US2004084119 discloses a method of manufacturing a high- strength aluminium alloy extruded product suitable for applications as structural materials for transportation equipment such as automobiles, railroad carriages, and aircrafts.
  • the method includes extruding a billet of an aluminium alloy comprising 0.5% to 1.5% of Si, 0.9% to 1.6% of Mg, 0.8% to 2.5% of Cu, while satisfying the following equations (1), (2), (3), and (4), 3£Si%+Mg%+Cu%£4 (1) Mg% ⁇ 1.7xSi% (2) Mg%+Si%£2.7 (3) Cu%/2£Mg%£(Cu%/2)+0.6 (4) and further comprising 0.5% to 1.2% of Mn, with the balance being Al and unavoidable impurities, into a solid product by using a solid die, or into a hollow product by using a porthole die or a bridge die, thereby obtaining the solid product or the hollow product in which a fibrous structure accounts for 60% or more in area-fraction of the cross-sectional structure
  • the patent application WO2016202810 discloses a manufacturing process for obtaining 6xxx-series aluminium alloy solid extruded products, comprising Si: 0.3-1.7 wt. %; Mg: 0.1-1.4 wt. %, Cu: 0.1-0.8 wt. %, Zn 0.005-0.7 wt.
  • the invention also concerns a manufacturing process for obtaining a bumper system in which is integrated a towing eye, said towing eye being made with said high mechanical properties aluminium alloys.
  • Patent application WO2019206826 discloses an extruded product made of 6xxx aluminium alloy comprising 0.40 - 0.80 wt. % Si, 0.40 - 0.80 wt. % Mg, 0.40 - 0.70 wt. % Cu, up to 0.4 wt. % Fe, up to 0.30 wt. % Mn, up to 0.2 wt. % Cr, up to 0.2 wt. % V, up to 0.14 wt. % Zr, up to 0.1 wt. % Ti, up to 0.05 wt. % each impurity and total 0.15 wt.
  • CN 103131904 discloses an aluminum alloy material comprising the following components in percentage by mass: 0.8-1.3% of Si, 0.3-0.7% of Cu, 0.20-0.60% of Mn, 0.8-1.4% of Mg, 0.05-0.25% of Cr, 0.05-0.2% of Zr, at most 0.5% of Fe, at most 0.2% of Zn, at most 0.1% of Ti, and the balance of Al and impurities.
  • An object of the invention is an extruded profile comprising an Al-Mg-Si alloy containing, in wt.%,
  • Another object of the invention is a method to make an extruded profile according to the invention comprising the successive steps of
  • Yet another object of the invention is the use of an extruded profile according to the invention as an automotive component such as a crash box, a bumper, a side impact beam or a side sill. DESCRIPTION OF THE FIGURES
  • Figure 1 Microstructure of extruded profile made of alloy A4 ( Figure 1a) or A6 ( Figure 1b).
  • Figure 2 Calculated lines of same ultimate tensile strength in MPa in the flow stress / solidus temperature coordinate system.
  • Metallurgical tempers referred to are designated using the European standard EN-515. Static tensile mechanical characteristics, in other words, the ultimate tensile strength R m (or UTS), the tensile yield strength at 0.2% plastic elongation R p o,2 (or TYS), and elongation A% (or E%), are determined by a tensile test according to NF EN ISO 6892-1.
  • an improved Al-Mg-Si alloy allows to obtain high strength extrusions while having a high processability.
  • high processability it is meant in particular that the extrusion rate is high while maintaining a favourable microstructure wherein no incipient melting has occurred and the peripheral coarse grain layer has a limited thickness. This is obtained in particular through low flow stress and a high solidus temperature.
  • composition of the extruded profile according to the invention is, in wt.%, Si 0.6 - 0.9, Mg 0.55 - 0.76, Cu 0.65 - 0.9, Mn 0.4 - 0.7, Cr 0.05 - 0.2, Zr 0.10 - 0.19, Fe 0.05 - 0.5, Zn £ 1.0, V £ 0.10, Ti £ 0.10, other elements ⁇ 0.05 each and ⁇ 0.15 total, rest aluminium.
  • Si, Cu and Mg content are carefully adjusted in order to obtain the desired properties of strength, flow stress and solidus temperature.
  • the Si content is preferably at least 0.70 wt.% and more preferably at least 0.75 wt.%.
  • the Si content is preferably at most 0.90 wt.% and more preferably at most 0.85 wt.%.
  • the Mg content is preferably at least 0.58 wt.% and more preferably at least 0.62 wt.%.
  • the Mg content is preferably at most 0.75 wt.%, preferentially at most 0.74 wt.% and more preferably at most 0.72 wt.%.
  • the Cu content is preferably at least 0.70 wt.% and more preferably at least 0.75 wt.%.
  • the Cu content is preferably at most 0.90 wt.% and more preferably at most 0.85 wt.%.
  • the Cu content is from 0.75 to 0.85 wt.%.
  • the sum of Si, Cu and Mg is also controlled.
  • the sum Si + Mg + Cu is at least 2.0 wt.% and more preferably at least 2.15 wt.%. and/or at most 2.4 wt.% and more preferably at most 2.35 wt.% and even more preferably at most 2.33 wt.%.
  • Mn, Cr and Zr are added in particular to control the microstructure of the extruded profile.
  • the microstructure of the extruded profile is preferably essentially unrecrystallized.
  • essentially unrecrystallized microstructure it is meant that the proportion of recrystallized grains is less than 35 %, preferentially less than 30 % and preferably less than 20% through the thickness of the walls the extruded profile.
  • the peripheral coarse grain is, per wall side, at most 400 pm thick, preferably at most 250 pm thick and most preferably at most 200 pm thick.
  • the peripheral coarse grain (PCG) is a layer of recrystallized grains on the surface of the extruded profile. It is measured in appropriate location of the extruded profile, usually excluding angles and welding zones.
  • the Mn content is preferably at least 0.40 wt.% and more preferably at least 0.45 wt.%.
  • the Mn content is preferably at most 0.65 wt.% and more preferably at most 0.55 wt.%.
  • the Cr content is preferably at least 0.06 wt.% and more preferably at least 0.07 wt.%.
  • the Cr content is preferably at most 0.18 wt.% and more preferably at most 0.12 wt.%.
  • the Zr content is preferably at least 0.11 wt.% and more preferably at least 0.12 wt.%.
  • the Zr content is preferably at most 0.18 wt.% and more preferably at most 0.16 wt.%.
  • the Zn content is at most 1.0 wt.%, preferably at most 0.8 wt.% or at most 0.7 wt.% or at most 0.6 wt.% or at most 0.5 wt.% or at most 0.4 wt.% or at most 0.3 wt.% or at most 0.2 wt.% or even at most 0.1 wt.%.
  • the present inventors have found that the invention alloy can tolerate such content of Zn without adversely affecting the properties, which is beneficial for recycling purposes.
  • the V content is at most 0.10 wt.% and preferably at most 0.05 wt.% or even at most 0.03 wt.%.
  • Ti is preferably added to control the as-cast grain structure.
  • the Ti content is from 0.01 wt.% to 0.07 wt.% and preferably from 0.01 wt.% to 0.05 wt.%.
  • Fe is at least 0.05 wt.% and at most 0.5 wt.%.
  • the Fe content is preferably at least 0.10 wt.% and more preferably at least 0.15 wt.%.
  • the Fe content is preferably at most 0.40 wt.% and more preferably at most 0.30 wt.%.
  • the present inventors have found that the invention alloy can tolerate such content of Fe without adversely affecting the properties, which is beneficial for recycling purposes.
  • the content of other elements is less than 0.05 wt.% each and less than 0.15 wt.% total.
  • the other elements are typically unavoidable impurities or incidental elements added in very small quantity such as boron which can be typically added together with Ti in the form of T1B2.
  • the composition is adjusted so that the calculated solidus temperature using standard thermodynamic database is from is from 580 °C to 610 °C, preferably from 585 °C to 600 °C and more preferably from 588 °C to 595 °C, and even more preferably from 589 °C to 594 °C. With this relatively high solidus temperature it is possible to increase extrusion rate without having the risk of incipient melting.
  • the composition and the homogenization are adjusted so that the flow stress measured at 480 °C and a strain rate of 0.14 s-1 is at most 35 MPa and preferably at most 32 MPa in order to improve the processability.
  • the alloy of the invention is possible to obtain an extrusion rate from 5 to 15 m/mn and preferably from 6 to 12 m/mn without microscopic defects such as incipient melting or thick PCG.
  • the extruded profiles according to the invention exhibit in a T6 temper an ultimate tensile strength in the longitudinal direction of at least 390 MPa and preferably of at least 400 MPa.
  • the present inventors found it possible to obtain simultaneously the preferred solidus temperature from 588 °C to 595 °C, the preferred flow stress measured at 480 °C and a strain rate of 0.14 s-1 of at most 35 MPa and an extruded profile ultimate tensile strength in a T6 temper in the longitudinal direction of at least 390 MPa, and preferably the more preferred solidus temperature from 589 °C to 594 °C, the more preferred flow stress measured at 480 °C and a strain rate of 0.14 s-1 of at most 32 MPa and an extruded profile ultimate tensile strength in a T6 temper in the longitudinal direction of at least 400 MPa.
  • a method to make an extruded profile according to the invention comprises the successive steps of casting a billet of an alloy according to the invention, homogenizing the billet, cooling the homogenized billet to room temperature, solution heat treating and quenching or simply reheating the homogenized billet, extruding, quenching, stretching and aging.
  • the homogenization temperature is preferably from 510 °C to 600 °C and more preferably from 530 °C to 590 °C, and even more preferably from 540 °C to 580 °C, and even more preferably from 560 °C to 580 °C.
  • the homogenized billet is solution heat treated at a temperature from 500 °C to 560 °C for a duration from 150 s to 500 s and quenched to a temperature from 300 °C to 500 °C.
  • the homogenized billet is solution heat treated at a temperature from 530 °C to 560 °C for a duration from 150 s to 500 s and quenched to a temperature from 330 °C to 500 °C.
  • temperature referring to a billet is to be understood as billet average surface temperature.
  • the temperature after quenching referred to is the temperature obtained after stabilization: during and just after quenching the surface temperature of the billet may locally drop below 300 °C.
  • the homogenized billet is reheated directly and without a solutionising step to a temperature from 300 °C to 500 °C and preferably from 330 °C to 500 °C.
  • the first embodiment usually enables to obtain extruded profiles having a higher strength than the second embodiment.
  • the thermal treatment of the homogenized billet is carried out in a way to obtain before extrusion a temperature difference between one end, the head, and the other end, the foot, of the billet of at least 30 °C, preferably of at least 50 °C and even more preferably of at least 70 °C.
  • Extrusion is carried out at an extrusion rate from 5 m/mn to 15 m/mn with preferably an entry temperature of the head of the billet from 400 °C to 500°C and an entry temperature of the foot of the billet from 330°C to 450 °C to obtain an extruded profile.
  • the head of the billet is the first part to be extruded and the foot of the billet is the last part to be extruded.
  • the extrusion rate is preferably at least 7 m/mn, preferentially at least 8 m/mn and more preferably at least 10 m/mn without having any defects such as incipient melting or excessive PCG.
  • an extruded profile of the invention is made from a billet homogenized at a homogenization temperature from 530 °C to 580 °C and extruded at an extrusion rate of at least 7 m/mn.
  • the extruded profile is quenched. Quenching can be realized a with strong air flow or preferably with a water spray and or more preferably through a standing wave.
  • the extruded profile is then stretched which induces plastic deformation, preferably of at least 0.1 % and preferentially of at least 0.5 % and preferably of at most 4%, more preferably of at most 2% and even more preferably of at most 1%.
  • the extruded profile is aged.
  • the extruded profile is aged to a T6 temper.
  • the aging temperature is from 160 °C to 180°C for a duration from 5 to 20 hours.
  • the extruded profile is overaged to a T7 temper.
  • extruded profiles of the invention can be used advantageously as an automotive component such as a crash box, a bumper, a side impact beam, battery enclosure or a side sill.
  • Billets having the composition disclosed in Table 1 have been cast. Alloys A2 and A4 are according to the invention.
  • the A1 billet was homogenized at 550 °C.
  • the A6, A7 and A8 billet were homogenized at 555 °C. All the other billets were homogenized at 575 °C.
  • the billets were subjected to solutionising and quenching of the billets prior extrusion.
  • the billets were heated to 530 °C and held at this temperature for at least 2 min before being water quenched to a stabilized temperature close to 480 °C and not lower than 350 °C.
  • the billets were then extruded and the extrusions exit temperature was 560 °C or above without generating surface defect.
  • the extrusions were hollow profiles with a wall thickness of 1,8 mm.
  • extrusions were cooled down to room temperature preferably using water quench in order to assess full mechanical and ductility potential of the alloys. Extrusions were then stretched in order to induce 0.5% to 1.0% of plastic deformation and subsequently aged in order to reach their maximum strength. The extruded profiles were finally aged at 170 °C in order to reach peak strength (T6 temper).
  • Extruded profiles made of alloys A1, A2 and A4 had an essentially unrecristallized microstructure with a PCG about 150 pm thick per wall side, so that the proportion of recrystallized grains was less than 20 %.
  • Figure 1a shows a cross-section of an extruded profile made of an extruded profile according to the invention with a PCG about 150 pm thick.
  • Extruded profiles made of alloys A7 and A8 had an essentially unrecristallized microstructure with a PCG about 135 pm thick and 90 pm thick per wall side respectively.
  • Extruded profiles made of alloys A3 and A5 had a recrystallized microstructure.
  • Extruded profile made of alloy A6 had a microstructure with a PCG about 500 pm thick per wall side as illustrated by Figure 1b.
  • flow stress of the raw material i.e. billets
  • Strain rate used in the compression trials was 0.14s 1 .
  • the flow stress is directly related to processability as the lower the flow stress, the less resistance to extrusion and the higher the possible extrusion rate for a given equipment.
  • the extrusion rate may be limited by the maximum temperature that the extrusion can undergo the mechanical properties and flow stress are provided in Table 2
  • Table 2 mechanical properties and flow stress.
  • the present inventors established a model predicting the flow stress and the mechanical strength from the solidus temperature for alloys of the present invention transformed into extruded profiles with the method of this example.
  • the result of this simulation is provided in Figure 2.
  • the alloy of the invention it is possible to obtain a very favorable balance between processability and strength, in particular for a calculated solidus temperature from 588 °C to 595 °C, it is possible to obtain simultaneously a flow stress measured at 480 °C and a strain rate of 0.14 s-1 of at most 35 MPa and an extruded profile in a T6 temper with an ultimate tensile strength in the longitudinal direction of at least 400 MPa without microscopic defects such as incipient melting or thick PCG.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Extrusion Of Metal (AREA)

Abstract

L'invention concerne un alliage amélioré pour obtenir des extrusions d'alliage AA6xxx à haute résistance, présentant habituellement une résistance à la traction ultime supérieure à 390 MPa et une aptitude élevée au traitement, présentant en particulier une productivité élevée, ainsi qu'une qualité de surface élevée et une résistance à la corrosion élevée. En particulier, l'alliage selon l'invention contient, en % en poids, Si 0,6-0,9, Mg 0,55-0,76, Cu 0,65-0,9, Mn 0,4-0,7, Cr 0,05-0,2, Zr 0,10-0,19, Fe 0,05-0,5, Zn ≤ 1,0, V ≤ 0,10, Ti ≤ 0,10, d'autres éléments < 0,05 chacun et < 0,15 au total, le reste étant constitué d'aluminium. Les profilés extrudés de l'invention sont avantageusement utilisés en tant que composants automobiles, tels que des boîtes d'écrasement, des pare-chocs, des poutres d'impact latérales ou des longerons latéraux.
PCT/EP2022/064040 2021-05-25 2022-05-24 Alliage a6xxx pour produits extrudés à haute résistance présentant une aptitude élevée au traitement WO2022248465A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA3218216A CA3218216A1 (fr) 2021-05-25 2022-05-24 Alliage a6xxx pour produits extrudes a haute resistance presentant une aptitude elevee au traitement
EP22730257.7A EP4347907A1 (fr) 2021-05-25 2022-05-24 Alliage a6xxx pour produits extrudés à haute résistance présentant une aptitude élevée au traitement
CN202280033516.9A CN117280059A (zh) 2021-05-25 2022-05-24 用于具有高可加工性的高强度挤出产品的6xxx合金

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21175802.4A EP4095278A1 (fr) 2021-05-25 2021-05-25 Produits extrudés en alliage 6xxx à haute résistance à haute aptitude a la transformation
EP21175802.4 2021-05-25

Publications (1)

Publication Number Publication Date
WO2022248465A1 true WO2022248465A1 (fr) 2022-12-01

Family

ID=76098909

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/064040 WO2022248465A1 (fr) 2021-05-25 2022-05-24 Alliage a6xxx pour produits extrudés à haute résistance présentant une aptitude élevée au traitement

Country Status (4)

Country Link
EP (2) EP4095278A1 (fr)
CN (1) CN117280059A (fr)
CA (1) CA3218216A1 (fr)
WO (1) WO2022248465A1 (fr)

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
JPH06212336A (ja) * 1993-01-13 1994-08-02 Mitsubishi Alum Co Ltd 強度および曲げ加工性のすぐれたＡｌ合金押出加工材
JP2000054049A (ja) * 1998-08-07 2000-02-22 Mitsubishi Alum Co Ltd 圧潰特性に優れるサイドメンバー用Ａｌ−Ｍｇ−Ｓｉ系合金押出形材及びその製造方法
US20040084119A1 (en) 2002-11-01 2004-05-06 Hideo Sano Method of manufacturing high-strength aluminum alloy extruded product excelling in corrosion resistance and stress corrosion cracking resistance
US20110155291A1 (en) 2003-04-07 2011-06-30 Hideo Sano High-strength aluminum alloy extruded product exhibiting excellent corrosion resistance and method of manufacturing same
CN103131904A (zh) 2013-03-06 2013-06-05 佛山市三水凤铝铝业有限公司 一种铝合金材料及其热处理工艺
WO2015086116A1 (fr) 2013-12-11 2015-06-18 CONSTELLIUM VALAIS SA (AG-Ltd) Procédé de fabrication permettant d'obtenir des produits extrudés à haute résistance formés à partir d'alliages d'aluminium 6xxx
WO2016202810A1 (fr) 2015-06-15 2016-12-22 Constellium Singen Gmbh Procédé de fabrication permettant d'obtenir des produits extrudés solides à haute résistance réalisés à partir d'alliages d'aluminium de la série 6xxx pour une boucle de remorquage
EP3312301A1 (fr) * 2016-10-20 2018-04-25 Constellium Singen GmbH Revenu thermomecanique pour extrusion en alliage 6xxx
WO2019206826A1 (fr) 2018-04-24 2019-10-31 Constellium Singen Gmbh Alliage d'aluminium 6xxx pour extrusion doté d'une excellente performance à l'écrasement et d'une limite conventionnelle d'élasticité élevée et son procédé de production

Patent Citations (11)

* 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
JPH06212336A (ja) * 1993-01-13 1994-08-02 Mitsubishi Alum Co Ltd 強度および曲げ加工性のすぐれたＡｌ合金押出加工材
JP2000054049A (ja) * 1998-08-07 2000-02-22 Mitsubishi Alum Co Ltd 圧潰特性に優れるサイドメンバー用Ａｌ−Ｍｇ−Ｓｉ系合金押出形材及びその製造方法
US20040084119A1 (en) 2002-11-01 2004-05-06 Hideo Sano Method of manufacturing high-strength aluminum alloy extruded product excelling in corrosion resistance and stress corrosion cracking resistance
US20110155291A1 (en) 2003-04-07 2011-06-30 Hideo Sano High-strength aluminum alloy extruded product exhibiting excellent corrosion resistance and method of manufacturing same
CN103131904A (zh) 2013-03-06 2013-06-05 佛山市三水凤铝铝业有限公司 一种铝合金材料及其热处理工艺
WO2015086116A1 (fr) 2013-12-11 2015-06-18 CONSTELLIUM VALAIS SA (AG-Ltd) Procédé de fabrication permettant d'obtenir des produits extrudés à haute résistance formés à partir d'alliages d'aluminium 6xxx
WO2016202810A1 (fr) 2015-06-15 2016-12-22 Constellium Singen Gmbh Procédé de fabrication permettant d'obtenir des produits extrudés solides à haute résistance réalisés à partir d'alliages d'aluminium de la série 6xxx pour une boucle de remorquage
EP3312301A1 (fr) * 2016-10-20 2018-04-25 Constellium Singen GmbH Revenu thermomecanique pour extrusion en alliage 6xxx
WO2018073389A1 (fr) 2016-10-20 2018-04-26 Constellium Singen Gmbh Vieillissement thermomécanique destiné aux extrusions 6xxx
WO2019206826A1 (fr) 2018-04-24 2019-10-31 Constellium Singen Gmbh Alliage d'aluminium 6xxx pour extrusion doté d'une excellente performance à l'écrasement et d'une limite conventionnelle d'élasticité élevée et son procédé de production

Also Published As

Publication number Publication date
CA3218216A1 (fr) 2022-12-01
CN117280059A (zh) 2023-12-22
EP4095278A1 (fr) 2022-11-30
EP4347907A1 (fr) 2024-04-10

Similar Documents

Publication Publication Date Title
US11920229B2 (en) High strength 6XXX aluminum alloys and methods of making the same
US11313019B2 (en) Method for producing a heat treatable aluminum alloy with improved mechanical properties
EP3299482B1 (fr) Procédé de fabrication d&#39;un alliage de 6xxx series de haute résistance pour forger.
US10661338B2 (en) Damage tolerant aluminium material having a layered microstructure
US9039848B2 (en) Al—Mg—Zn wrought alloy product and method of its manufacture
US8608876B2 (en) AA7000-series aluminum alloy products and a method of manufacturing thereof
EP3464659B1 (fr) Matériau de stockage forgé en alliage d&#39;aluminium de la série 6xxx et son procédé de fabrication
KR100502776B1 (ko) 브레이징 용도 및 용접 구조체용 고강도 알루미늄-마그네슘-아연-실리콘 합금, 그 용접 구조체와 브레이징 구조체 및 그 사용방법
JP3053352B2 (ja) 破壊靭性、疲労特性および成形性の優れた熱処理型Ａｌ合金
US10253404B2 (en) High strength, high formability, and low cost aluminum-lithium alloys
CN105814220A (zh) 获得由6xxx铝合金制成的高强度挤出产品的制造方法
EP2072628A1 (fr) Alliage d&#39;aluminium haute résistance résistant aux collisions
WO2020120267A1 (fr) Procédé de fabrication de tôles d&#39;aluminium 6xxx présentant une haute qualité de surface
JP5473718B2 (ja) 曲げ圧壊性と耐食性に優れたアルミニウム合金押出材
CN113302327A (zh) 7xxx系列铝合金产品
US6918975B2 (en) Aluminum alloy extrusions having a substantially unrecrystallized structure
JP6810178B2 (ja) 高強度アルミニウム合金およびその製造方法、該アルミニウム合金を用いたアルミニウム合金板並びにアルミニウム合金部材
EP4095278A1 (fr) Produits extrudés en alliage 6xxx à haute résistance à haute aptitude a la transformation
JP2022156481A (ja) アルミニウム合金押出材およびその製造方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22730257

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 3218216

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 202280033516.9

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: MX/A/2023/013267

Country of ref document: MX

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2022730257

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2022730257

Country of ref document: EP

Effective date: 20240102