EP4095278A1 - 6xxx-legierung extrudierte produkte mit hoher stärke und hoher verfahrensfähigkeit - Google Patents

6xxx-legierung extrudierte produkte mit hoher stärke und hoher verfahrensfähigkeit Download PDF

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Publication number
EP4095278A1
EP4095278A1 EP21175802.4A EP21175802A EP4095278A1 EP 4095278 A1 EP4095278 A1 EP 4095278A1 EP 21175802 A EP21175802 A EP 21175802A EP 4095278 A1 EP4095278 A1 EP 4095278A1
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EP
European Patent Office
Prior art keywords
extruded profile
temperature
billet
profile according
mpa
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.)
Withdrawn
Application number
EP21175802.4A
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English (en)
French (fr)
Inventor
Mehdi BEN TAHAR
Roland TIRARD-COLLET
Martin Jarrett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Constellium Singen GmbH
Constellium Extrusion Levice Sro
Original Assignee
Constellium Singen GmbH
Constellium Extrusion Levice Sro
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 Sro filed Critical Constellium Singen GmbH
Priority to EP21175802.4A priority Critical patent/EP4095278A1/de
Priority to EP22730257.7A priority patent/EP4347907A1/de
Priority to MX2023013267A priority patent/MX2023013267A/es
Priority to CN202280033516.9A priority patent/CN117280059A/zh
Priority to CA3218216A priority patent/CA3218216A1/en
Priority to PCT/EP2022/064040 priority patent/WO2022248465A1/en
Publication of EP4095278A1 publication Critical patent/EP4095278A1/de
Withdrawn legal-status Critical Current

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    • 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 WO2015086116 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% ⁇ /Si %+Mg %+Cu % ⁇ /4% (1) Mg % ⁇ /1.7 ⁇ Si % (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 ⁇ m or less.
  • the patent application WO2018073389 discloses extrusions for structural components, such as bumper, side impact beam, seat sill in vehicles and more particularly to a method for optimizing strength and energy absorption of 6XXX aluminium alloys extrusions by variations in thermomechanical ageing (TMA) consisting in i) an artificial preageing treatment with a duration t1 at a temperature T1 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,
  • 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-
  • 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.
  • CN103131904 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.
  • All aluminium alloys referred to in the following are designated using the rules and designations defined by the Aluminium Association in Registration Record Series that it publishes regularly, unless mentioned otherwise.
  • 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 p0,2 (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.
  • the 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.%. In a preferred embodiment 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 ⁇ m thick, preferably at most 250 ⁇ m thick and most preferably at most 200 ⁇ m thick.
  • the peripheral coarse grain (PCG) is a layer of recrystallized grains on the surface of the extruded profile.
  • 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 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 TiB 2 .
  • 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.
  • 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 processability is improved, in particular 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.
  • 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%. Finally, 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.
  • the 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. Table 1. Composition in wt.% Alloy Si Fe Cu Mn Mg Cr Ti Zr Calculated Solidus (°C) A1 0.82 0.20 0.75 0.54 0.77 0.10 0.05 0.13 587 A2 0.83 0.21 0.71 0.53 0.76 0.10 0.04 0.14 588 A3 0.53 0.11 0.20 0.05 0.90 ⁇ 0.05 0.10 ⁇ 0.01 601 A4 0.81 0.21 0.81 0.54 0.68 0.09 0.04 0.13 590 A5 0.62 0.17 0.59 0.07 0.57 ⁇ 0.05 0.03 ⁇ 0.01 598 A6 0.80 0.18 0.80 0.57 0.66 0.14 0.02 ⁇ 0.01 592
  • the A1 billet was homogenized at 550 °C.
  • the A6 billet was 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 ⁇ m 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 ⁇ m thick.
  • 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 ⁇ m thick per wall side as illustrated by Figure 1b .
  • In parallel flow stress of the raw material (i.e. billets) was measured for each alloy using a hot compression test at 480°C. 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.
  • Rm (MPa) Flow Stress (0.14s -1 at 480°C)
  • 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.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
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EP21175802.4A 2021-05-25 2021-05-25 6xxx-legierung extrudierte produkte mit hoher stärke und hoher verfahrensfähigkeit Withdrawn EP4095278A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP21175802.4A EP4095278A1 (de) 2021-05-25 2021-05-25 6xxx-legierung extrudierte produkte mit hoher stärke und hoher verfahrensfähigkeit
EP22730257.7A EP4347907A1 (de) 2021-05-25 2022-05-24 6xxx-legierung für hochfeste extrudierte produkte mit hoher verarbeitbarkeit
MX2023013267A MX2023013267A (es) 2021-05-25 2022-05-24 Aleacion a6xxx para productos extruidos de alta resistencia con alta procesabilidad.
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
CA3218216A CA3218216A1 (en) 2021-05-25 2022-05-24 A 6xxx alloy for high strength extruded products with high processability
PCT/EP2022/064040 WO2022248465A1 (en) 2021-05-25 2022-05-24 A 6xxx alloy for high strength extruded products with high processability

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Application Number Priority Date Filing Date Title
EP21175802.4A EP4095278A1 (de) 2021-05-25 2021-05-25 6xxx-legierung extrudierte produkte mit hoher stärke und hoher verfahrensfähigkeit

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EP4095278A1 true EP4095278A1 (de) 2022-11-30

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EP21175802.4A Withdrawn EP4095278A1 (de) 2021-05-25 2021-05-25 6xxx-legierung extrudierte produkte mit hoher stärke und hoher verfahrensfähigkeit
EP22730257.7A Pending EP4347907A1 (de) 2021-05-25 2022-05-24 6xxx-legierung für hochfeste extrudierte produkte mit hoher verarbeitbarkeit

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EP (2) EP4095278A1 (de)
CN (1) CN117280059A (de)
CA (1) CA3218216A1 (de)
MX (1) MX2023013267A (de)
WO (1) WO2022248465A1 (de)

Citations (10)

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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 (en) 2013-12-11 2015-06-18 CONSTELLIUM VALAIS SA (AG-Ltd) Manufacturing process for obtaining high strength extruded products made from 6xxx aluminium alloys
WO2016202810A1 (en) 2015-06-15 2016-12-22 Constellium Singen Gmbh Manufacturing process for obtaining high strength solid extruded products made from 6xxx aluminium alloys for towing eye
EP3312301A1 (de) * 2016-10-20 2018-04-25 Constellium Singen GmbH Thermomechanische auslagerung für 6xxx extrusionen
WO2019206826A1 (en) 2018-04-24 2019-10-31 Constellium Singen Gmbh 6xxx aluminum alloy for extrusion with excellent crash performance and high yield strength and method of production thereof

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
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WO2019206826A1 (en) 2018-04-24 2019-10-31 Constellium Singen Gmbh 6xxx aluminum alloy for extrusion with excellent crash performance and high yield strength and method of production thereof

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CA3218216A1 (en) 2022-12-01
CN117280059A (zh) 2023-12-22
WO2022248465A1 (en) 2022-12-01

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