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EP3080318B2 - Procede de fabrication de produits en alliage d'aluminium - cuivre - lithium a proprietes en fatigue ameliorees et distributeuer pour ce procede - Google Patents

Procede de fabrication de produits en alliage d'aluminium - cuivre - lithium a proprietes en fatigue ameliorees et distributeuer pour ce procede Download PDF

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Publication number
EP3080318B2
EP3080318B2 EP14828176.9A EP14828176A EP3080318B2 EP 3080318 B2 EP3080318 B2 EP 3080318B2 EP 14828176 A EP14828176 A EP 14828176A EP 3080318 B2 EP3080318 B2 EP 3080318B2
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EP
European Patent Office
Prior art keywords
fabric
weight
casting
dispenser
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German (de)
English (en)
French (fr)
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EP3080318A2 (fr
EP3080318B1 (fr
Inventor
Armelle Danielou
Soizic BLAIS
Philippe Jarry
Olivier Ribaud
Bernard Valentin
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Constellium Issoire SAS
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Constellium Issoire SAS
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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
    • C22C21/12—Alloys based on aluminium with copper as the next major constituent
    • C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/057—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 copper as the next major constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • 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
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/212—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
    • B22D11/003—Aluminium alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/0408—Moulds for casting thin slabs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/059—Mould materials or platings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/103—Distributing the molten metal, e.g. using runners, floats, distributors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/116—Refining the metal
    • B22D11/119—Refining the metal by filtering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/002—Castings of light metals
    • B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
    • B22D21/04—Casting aluminium or magnesium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/026—Alloys based on aluminium
    • 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
    • C22C21/12—Alloys based on aluminium with copper as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/12—Alloys based on aluminium with copper as the next major constituent
    • C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
    • 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
    • C22C21/12—Alloys based on aluminium with copper as the next major constituent
    • C22C21/18—Alloys based on aluminium with copper as the next major constituent with zinc
    • 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
    • C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B2003/001—Aluminium or its alloys

Definitions

  • the invention relates to a distributor intended for the semi-continuous casting of aluminum alloy plates and a process for manufacturing wrought aluminum - copper - lithium alloy products, intended in particular for aeronautical and aerospace construction.
  • Aluminum - copper - lithium alloys are particularly promising for manufacturing this type of product.
  • the specifications imposed by the aeronautical industry for fatigue life are high.
  • Thick Al-Cu-Li alloy products are notably described in the applications US2005/0006008 And US2009/0159159 .
  • US5207974 discloses a partitioned dispenser for dispensing molten metal from a nozzle to form an ingot.
  • a first object of the invention is a distributor intended for the semi-continuous casting of aluminum alloy plates according to claim 1.
  • Another object of the invention is a method of manufacturing an aluminum alloy product according to claim 6.
  • the static mechanical characteristics in traction are determined by a tensile test according to standard NF EN ISO 6892-1, the sampling and direction of the test being defined by standard EN 485-1.
  • the Walker equation was used to determine a maximum stress value representative of 50% non-failure at 100,000 cycles.
  • IQF corresponding to the median, i.e. 50% rupture per 100,000 cycles.
  • a thick wrought product is a product whose thickness is at least 6 mm.
  • the thickness of the products according to the invention is at least 80 mm and preferably at least 100 mm.
  • the thickness of the wrought products is at least 120 mm or preferably 140 mm.
  • the thickness of the thick products according to the invention is typically at most 240 mm, generally at most 220 mm and preferably at most 180 mm.
  • a sheet metal is according to the invention a rolled product of rectangular cross section whose uniform thickness is at least 6 mm and does not exceed 1/10th of the width.
  • structural element or “structural element” of a mechanical construction a mechanical part for which the static and/or dynamic mechanical properties are particularly important for the performance of the structure, and for which a structural calculation is usually prescribed or carried out.
  • these structural elements include in particular the elements which make up the fuselage (such as the fuselage skin), the fuselage stiffeners or stringers (stringers), the bulkheads (bulkheads), the fuselage frames.
  • fuselage (circumferential frames), the wings (such as the wing skin), the stiffeners (stringers or stiffeners), the ribs (ribs) and spars (spars)) and the empennage composed in particular of horizontal and vertical stabilizers (horizontal or vertical stabilizers), as well as floor beams, seat tracks and doors.
  • a casting installation may include numerous devices such as one or more furnaces necessary for melting the metal (“melting furnace”) and/or maintaining it (“maintaining furnace”) in temperature and/or for processing operations.
  • preparation furnace preparation of the liquid metal and adjustment of the composition
  • one or more tanks intended to carry out a treatment to eliminate impurities dissolved and/or suspended in the liquid metal
  • this treatment may consist of filtering the liquid metal on a filter media in a “filtration bag” or introducing into the bath a so-called “treatment” gas which can be inert or reactive in a “degassing bag”, a degassing device.
  • solidification liquid metal (or “casting craft”), by vertical semi-continuous casting by direct cooling in a casting well, which may include devices such as a mold (or “ingot mold”), a device for supplying liquid metal ( or “busette”) and a cooling system, these different furnaces, tanks and solidification devices being interconnected by transfer devices or channels called “chutes” in which the liquid metal can be transported.
  • a mold or “ingot mold”
  • a device for supplying liquid metal or “busette”
  • a cooling system these different furnaces, tanks and solidification devices being interconnected by transfer devices or channels called “chutes” in which the liquid metal can be transported.
  • the present inventors have found that, surprisingly, it is possible to obtain thick wrought products made of aluminum copper lithium alloy having improved fatigue performance by preparing these sheets using the following process.
  • a bath of liquid alloy metal comprising, in % by weight Cu: 2.0 - 6.0; Li: 0.5 - 2.0; Mg: 0-1.0; Ag: 0 - 0.7; Zn 0 - 1.0; and at least one element chosen from Zr, Mn, Cr, Sc, Hf and Ti, the quantity of said element, if chosen, being 0.05 to 0.20% by weight for Zr, 0.05 to 0 .8% by weight for Mn, 0.05 to 0.3% by weight for Cr and for Sc, 0.05 to 0.5% by weight for Hf and 0.01 to 0.15% by weight for Ti , If ⁇ 0.1; Fe ⁇ 0.1; others ⁇ 0.05 each and ⁇ 0.15 in total, remains aluminum.
  • An advantageous alloy for the process according to the invention comprises, in % by weight, Cu: 3.0 - 3.9; Li: 0.7 - 1.3; Mg: 0.1 - 1.0, at least one element chosen from Zr, Mn and Ti, the quantity of said element, if chosen, being 0.06 to 0.15% by weight for Zr, 0, 05 to 0.8% by weight for Mn and 0.01 to 0.15% by weight for Ti; Ag: 0 - 0.7; Zn ⁇ 0.25; If ⁇ 0.08; Fe ⁇ 0.10; others ⁇ 0.05 each and ⁇ 0.15 in total, remains aluminum.
  • the copper content is at least 3.2% by weight.
  • the lithium content is preferably between 0.85 and 1.15% by weight and preferably between 0.90 and 1.10% by weight.
  • the magnesium content is preferably between 0.20 and 0.6% by weight.
  • the simultaneous addition of manganese and zirconium is generally advantageous.
  • the manganese content is between 0.20 and 0.50% by weight and the zirconium content is between 0.06 and 0.14% by weight.
  • the silver content is between 0.20 and 0.7% by weight. It is advantageous if the silver content is at least 0.1% by weight. In one embodiment of the invention the silver content is at least 0.20% by weight. Preferably the silver content is at most 0.5% by weight. In one embodiment of the invention the silver content is limited to 0.3% by weight.
  • the silicon content is at most 0.05% by weight and the iron content is at most 0.06% by weight.
  • the titanium content is between 0.01 and 0.08% by weight.
  • the zinc content is at most 0.15% by weight.
  • a preferred aluminum-copper-lithium alloy is alloy AA2050.
  • This liquid metal bath is prepared in a furnace of the casting installation. It is known, for example, to US 5,415,220 to use lithium-containing molten salts such as KCl/LiCl mixtures in the melting furnace to passivate the alloy as it is transferred to the casting facility.
  • the present inventors have, however, obtained excellent fatigue properties for thick sheets without using molten salt containing lithium in the melting furnace, but by maintaining in this furnace an atmosphere poor in oxygen and believe that the presence of salt in the melting furnace could in certain cases have a detrimental effect on the fatigue properties of thick wrought products.
  • molten salt containing lithium is not used throughout the casting installation. In an advantageous embodiment, no molten salt is used throughout the casting installation.
  • an oxygen content of less than 0.5% by volume and preferably less than 0.3% by volume is maintained in the furnace(s) of the casting installation.
  • an oxygen content of at least 0.05% by volume and even at least 0.1% by volume can be tolerated in the furnace(s) of the casting installation, which is advantageous in particular for the aspects economics of the process.
  • the furnace(s) of the casting installation are induction furnaces. The present inventors have found that this type of oven is advantageous despite the mixing generated by induction heating.
  • This liquid metal bath is then treated with a degassing bag and a filtration bag so that its hydrogen content is less than 0.4 ml/100g and preferably less than 0.35 ml/100g. .
  • the hydrogen content of the liquid metal is measured using commercial equipment such as the device marketed under the brand ALSCAN TM , known to those skilled in the art, the probe being maintained under a nitrogen sweep.
  • the oxygen content of the atmosphere in contact with the bath of liquid metal in the melting furnace during the degassing and filtration stages is less than 0.5% by volume and preferably less than 0.3% by volume.
  • the oxygen content of the atmosphere in contact with the liquid metal bath is less than 0.5% by volume and preferably less than 0.3% by volume for the entire installation of casting.
  • an oxygen content of at least 0.05% by volume and even at least 0.1% by volume can be tolerated for the entire casting installation, which is advantageous in particular for the economic aspects of the process.
  • a plate is a block of aluminum with a substantially parallelepiped shape, of length L, width W and thickness T.
  • the atmosphere above the liquid surface is controlled during solidification.
  • An example of a device for controlling the atmosphere above the liquid surface during solidification is shown in Figure Figure 2 .
  • the liquid metal coming from a chute (63) is introduced into a nozzle (4) controlled by a stopper (8) which can move up and down (81), in an ingot mold (31) placed on a false bottom (21).
  • the aluminum alloy is solidified by direct cooling (5).
  • the aluminum alloy (1) has at least one solid surface (11, 12, 13) and at least one liquid surface (14, 15).
  • An elevator (2) makes it possible to maintain the level of the liquid surface (14, 15) substantially constant.
  • a distributor (7) allows the distribution of the liquid metal.
  • a cover (62) covers the liquid surface.
  • the cover may include seals (61) to ensure sealing with the casting table (32).
  • the liquid metal in the chute (63) can advantageously be protected by a cover (64).
  • An inert gas (9) is introduced into the chamber (65) defined between the cover and the casting table.
  • the inert gas is advantageously chosen from rare gases, nitrogen and carbon dioxide or mixtures of these gases.
  • a preferred inert gas is argon.
  • the oxygen content is measured in the chamber (65) above the liquid surface.
  • the inert gas flow can be adjusted to achieve the desired oxygen content.
  • the present inventors have noted that there is generally not a sufficient seal between the ingot mold (31) and the solidified metal (5), which leads to diffusion of the atmosphere from the casting well (10) towards the room (65).
  • the suction of the pump (101) is such that the pressure in the enclosure (10) is lower than the pressure in the chamber (65), which can be preferably obtained by imposing a speed of the atmosphere through the open surfaces of the casting well at least 2 m/s and preferably at least 2.5 m/s.
  • the pressure in the chamber (65) is close to atmospheric pressure and the pressure in the enclosure (10) is lower than atmospheric pressure, typically 0.95 times atmospheric pressure.
  • an oxygen content of less than 0.5% by volume and preferably less than 0.3% by volume is maintained in the chamber (65), thanks to the devices described.
  • the distributor according to the invention is made of fabric essentially comprising carbon, it comprises a lower face (76), a typically empty upper face defining the orifice through which the liquid metal is introduced (71) and a wall of substantially rectangular section typically substantially constant and of height h typically substantially constant, the wall comprising two longitudinal parts parallel to the width W of the plate (720, 721) and two transverse parts parallel to the thickness T of the plate (730, 731) said transverse parts and longitudinal being formed of at least two fabrics, a first substantially sealing and semi-rigid fabric (77) ensuring the maintenance of the shape of the distributor during casting and a second non-closing fabric (78) allowing the passage and filtration of the liquid, said first and second fabrics being linked to each other without overlap or with overlap and without gap separating them, said first fabric continuously covering at least 30% of the surface of said wall parts (720,721, 730, 731) and being positioned so that the liquid surface is in contact
  • the first and second fabrics being sewn to one another without overlap or with overlap and without gap separating them, that is to say in contact, the liquid metal cannot pass through the first fabric and be deflected by the second fabric as is the case for example in a combo-bag as described in the application WO 99/44719 Figures 2 to 5 .
  • the distributor is semi-rigid and does not deform significantly during casting.
  • the first fabric has a height, hl, measured from the upper face on the circumference of the wall (720, 721, 730, 731) such that h1 ⁇ 0.3 h and preferably h1 ⁇ 0, 5 h, where h designates the total height of the distributor wall.
  • the liquid surface being in contact with said first fabric closing the liquid metal only passes through the distributor under the liquid surface in certain directions of each part of the wall.
  • the height immersed in the liquid metal of the wall (720, 721, 730, 731) of the distributor (7) covered by the first fabric is at least equal to 20%, preferably 40% and preferably 60% of the height total submerged wall.
  • FIG. 4 represents the bottom and the longitudinal wall parts.
  • the bottom (76) is covered by the first and second fabrics.
  • the first fabric is at least located in the central part of the bottom (76) over a length L1 and/or in the central part of the longitudinal parts (720) and (721) over the entire height h and over a length L2.
  • the surface portion covered by the first fabric is between 50 and 80% for the longitudinal parts (720) and (721), and between 40 and 60% for the lateral parts (730, 731) and between 50 and 80% for the bottom (76).
  • length L1 of first fabric located in the bottom (76) is advantageous for the length L1 of first fabric located in the bottom (76) to be greater than the length L2 of first fabric located in the part of the longitudinal walls (720) and (721) in contact with the bottom.
  • the present inventors believe that the geometry of the distributor makes it possible in particular to improve the quality of the flow of the liquid metal, to reduce turbulence and to improve the temperature distribution.
  • the first fabric and the second fabric are advantageously obtained by weaving a thread essentially comprising carbon. Weaving graphite wire is particularly advantageous.
  • the fabrics are typically sewn together. It is also possible, instead of a first and second fabric, to use a single diffuser fabric having at least two weaving zones, more or less dense. It is advantageous for the ease of weaving that the thread comprising carbon is coated with a layer facilitating sliding. This layer may for example comprise a fluoropolymer such as Teflon or a polyamide such as xylon.
  • the first fabric is noticeably obturating. Typically this is a fabric having mesh sizes of less than 0.5 mm, preferably less than 0.2 mm.
  • the second fabric is non-obstructive and allows the passage of molten metal. Typically, it is a fabric having mesh sizes of between 1 and 5 mm, preferably 2 to 4 mm. In one embodiment of the invention the first fabric locally covers the second fabric, while being in intimate contact so as not to leave a gap between the two
  • the plate thus obtained is then transformed to obtain a wrought product.
  • the plate thus obtained is then homogenized before or after optionally being machined to obtain a shape that can be deformed under heat.
  • the plate is machined in the form of a rolling plate so as to then be hot deformed by rolling.
  • the plate is machined in the form of a forging blank so as to then be hot deformed by forging.
  • the plate is machined in the form of billets so as to then be deformed hot by extrusion.
  • the homogenization is carried out at a temperature between 470 and 540°C for a period of between 2 and 30 hours.
  • the hot deformation temperature is advantageously at least 350°C and preferably at least 400°C.
  • the hot and optionally cold deformation rate that is to say the ratio between on the one hand the difference between the initial thickness, before deformation but after possible machining, and the final thickness and on the other hand the initial thickness is less than 85% and preferably less than 80%. In an embodiment in which the deformation rate during deformation is less than 75% and preferably less than 70%.
  • the wrought product thus obtained is then put into solution and quenched.
  • the solution temperature is advantageously between 470 and 540°C and preferably between 490 and 530°C and the duration is adapted to the thickness of the product.
  • said wrought product thus put into solution is relieved by plastic deformation with a deformation of at least 1%.
  • the tempering is carried out in one or more stages at a temperature advantageously between 130 and 160°C for a period of 5 to 60 hours.
  • a metallurgical state T8 is obtained, such as in particular T851, T83, T84, or T85.
  • the wrought products obtained by the process according to the invention have advantageous properties.
  • the products obtained by the process according to the invention have advantageous static mechanical characteristics.
  • wrought products whose thickness is at least 80 mm including in % by weight, Cu: 3.0 - 3.9; Li: 0.7 - 1.3; Mg: 0.1 - 1.0, at least one element chosen from Zr, Mn and Ti, the quantity of said element, if chosen, being 0.06 to 0.15% by weight for Zr, 0, 05 to 0.8% by weight for Mn and 0.01 to 0.15% by weight for Ti; Ag: 0 - 0.7; Zn ⁇ 0.25; If ⁇ 0.08; Fe ⁇ 0.10; others ⁇ 0.05 each and ⁇ 0.15 in total, remains aluminum, the yield strength measured at quarter thickness in direction L is at least 450 MPa and preferably at least 470 MPa and/or the breaking strength measured is at least 480 MPa and preferably at least 500 MPa and/or the elongation is at least 5% and preferably at least 6%.
  • the wrought products obtained by the process according to the invention can advantageously be used to produce structural elements, preferably aircraft structural elements.
  • Preferred aircraft structural elements are spars, ribs or frames.
  • the invention is particularly advantageous for parts of complex shape obtained by integral machining, used in particular for the manufacture of aircraft wings as well as for any other use for which the properties of the products according to the invention are advantageous .
  • heavy plates made of AA2050 alloy were prepared.
  • AA2050 alloy plates were cast by direct-cooled vertical semi-continuous casting.
  • the alloy was prepared in a melting furnace.
  • a KCl/LiCl mixture was used on the surface of the liquid metal in the melting furnace.
  • no salt was used in the melting furnace.
  • the casting installation included a hood placed above the casting well to limit the oxygen content.
  • a suction (101) was also used such that the pressure in the enclosure (10) was lower than the pressure in the chamber (65) and such that the speed of the atmosphere through the open surfaces of the casting well was at least 2 m/s.
  • the oxygen content was measured using an oximeter during casting.
  • the hydrogen content in the liquid aluminum was measured using an Alscan TM type probe under nitrogen sweeping. Two types of liquid metal dispensers were used.
  • the casting conditions of the different tests carried out are given in table 1.
  • the plates were homogenized for 12 hours at 505°C, machined to a thickness of approximately 365 mm, hot rolled to sheets with a final thickness of between 154 and 158 mm, put into solution at 504°C , quenched and relieved by controlled traction with a permanent elongation of 3.5%.
  • the sheets thus obtained were tempered for 18 hours at 155°C.
  • Static and toughness mechanical properties were characterized at quarter thickness. Static mechanical characteristics and toughness are given in Table 2.
  • Table 2 Mechanical characteristics Essay Thickness [mm] Rm (L) MPa Rp0.2 (L) MPa A % (L) 1 158 528 495 6.5 2 155 538 507 7.0 3 155 525 493 8.3 4 158 528 four hundred ninety seven 7.0 5 158 529 495 6.0 6 158 527 496 6.8 7 154 514 486 8.3 8 158 533 502 6.3 9 158 542 512 5.8
  • the fatigue properties were characterized on smooth specimens and on hole specimens for certain samples taken at mid-thickness.

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  • Manufacture Of Alloys Or Alloy Compounds (AREA)
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  • Laminated Bodies (AREA)
EP14828176.9A 2013-12-13 2014-12-11 Procede de fabrication de produits en alliage d'aluminium - cuivre - lithium a proprietes en fatigue ameliorees et distributeuer pour ce procede Active EP3080318B2 (fr)

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Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3014448B1 (fr) * 2013-12-05 2016-04-15 Constellium France Produit en alliage aluminium-cuivre-lithium pour element d'intrados a proprietes ameliorees
FR3014905B1 (fr) 2013-12-13 2015-12-11 Constellium France Produits en alliage d'aluminium-cuivre-lithium a proprietes en fatigue ameliorees
FR3048902B1 (fr) 2016-03-18 2018-03-02 Constellium Issoire Enceinte a dispositif d'etancheite pour installation de coulee
MX2019001802A (es) 2016-08-26 2019-07-04 Shape Corp Proceso de modelacion en caliente y aparato para flexion transversal de una viga de aluminio extrudida para modelar en caliente un componente estructural del vehiculo.
EP3529394A4 (en) 2016-10-24 2020-06-24 Shape Corp. MULTI-STAGE MOLDING OF ALUMINUM ALLOYS AND THERMAL TREATMENT METHOD FOR PRODUCING VEHICLE COMPONENTS
CA3041580A1 (en) * 2016-10-27 2018-05-03 Novelis Inc. High strength 7xxx series aluminum alloys and methods of making the same
KR20210095716A (ko) 2016-10-27 2021-08-02 노벨리스 인크. 고강도 6xxx 시리즈 알루미늄 합금 및 그 제조 방법
ES2955353T3 (es) 2016-10-27 2023-11-30 Novelis Inc Método de colada continua y laminación aleación de aluminio y aleación de aluminio producto intermedio
CN106521270B (zh) * 2016-12-07 2018-08-03 中国航空工业集团公司北京航空材料研究院 一种改善铝锂合金耐腐蚀性能的热处理工艺
FR3065012B1 (fr) * 2017-04-10 2022-03-18 Constellium Issoire Produits en alliage aluminium-cuivre-lithium a faible densite
FR3065011B1 (fr) * 2017-04-10 2019-04-12 Constellium Issoire Produits en alliage aluminium-cuivre-lithium
FR3067044B1 (fr) * 2017-06-06 2019-06-28 Constellium Issoire Alliage d'aluminium comprenant du lithium a proprietes en fatigue ameliorees
US20190233921A1 (en) * 2018-02-01 2019-08-01 Kaiser Aluminum Fabricated Products, Llc Low Cost, Low Density, Substantially Ag-Free and Zn-Free Aluminum-Lithium Plate Alloy for Aerospace Application
FR3080860B1 (fr) * 2018-05-02 2020-04-17 Constellium Issoire Alliage aluminium cuivre lithium a resistance en compression et tenacite ameliorees
CN109182807B (zh) * 2018-09-20 2020-06-30 北京新立机械有限责任公司 一种高强度铝锂合金及其制备方法
FR3087206B1 (fr) * 2018-10-10 2022-02-11 Constellium Issoire Tôle en alliage 2XXX à haute performance pour fuselage d’avion
CN113039303A (zh) 2018-11-07 2021-06-25 奥科宁克技术有限责任公司 2xxx铝锂合金
CN111590041B (zh) * 2020-06-29 2021-10-12 上海大学 一种使用铝锂合金板材的生产装置的热处理方法
KR102494830B1 (ko) * 2022-03-22 2023-02-06 국방과학연구소 다단 시효처리를 이용한 Al-Li 합금의 제조방법
CN114540679B (zh) * 2022-04-26 2022-08-02 北京理工大学 一种微量元素复合强化高强度铝锂合金及制备方法
CN114778255B (zh) * 2022-06-13 2022-08-26 中铝材料应用研究院有限公司 高通量平面应变试样的制备装置及方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207974A (en) † 1991-07-29 1993-05-04 Aluminum Company Of America Partitioned receptacle for distributing molten metal from a spout to form an ingot
FR2757422A1 (fr) † 1996-12-24 1998-06-26 Stevtiss Articles textiles et filtres diffuseurs pour la filtration de metaux en fusion, notamment aluminium

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0645831B2 (ja) * 1986-01-07 1994-06-15 三井造船株式会社 Ａｌ−Ｌｉ系合金の溶製方法
US4769158A (en) 1986-12-08 1988-09-06 Aluminum Company Of America Molten metal filtration system using continuous media filter
US5032359A (en) * 1987-08-10 1991-07-16 Martin Marietta Corporation Ultra high strength weldable aluminum-lithium alloys
US5383986A (en) * 1993-03-12 1995-01-24 Reynolds Metals Company Method of improving transverse direction mechanical properties of aluminum-lithium alloy wrought product using multiple stretching steps
US5415220A (en) * 1993-03-22 1995-05-16 Reynolds Metals Company Direct chill casting of aluminum-lithium alloys under salt cover
JP3171723B2 (ja) * 1993-04-16 2001-06-04 株式会社アリシウム 金属の竪型連続鋳造方法及びその装置
JPH09141393A (ja) * 1995-11-15 1997-06-03 Sumitomo Light Metal Ind Ltd 圧延用アルミニウムインゴットの連続鋳造方法
ATE346963T1 (de) * 1997-01-31 2006-12-15 Alcan Rolled Products Ravenswood Llc Verfahren zur erhöhung der bruchzähigkeit in aluminium-lithium-legierungen
US5871660A (en) 1997-03-26 1999-02-16 The Regents Of The University Of California Liquid metal delivery system for continuous casting
US6270717B1 (en) 1998-03-04 2001-08-07 Les Produits Industriels De Haute Temperature Pyrotek Inc. Molten metal filtration and distribution device and method for manufacturing the same
GB2352992B (en) 1999-08-05 2002-01-09 Pyrotek Engineering Materials Distributor device
RU2180930C1 (ru) * 2000-08-01 2002-03-27 Государственное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" Сплав на основе алюминия и способ изготовления полуфабрикатов из этого сплава
JP2002097529A (ja) * 2000-09-22 2002-04-02 Kobe Steel Ltd アルミニウム合金溶湯の脱ガス方法
CN1323780C (zh) * 2002-07-22 2007-07-04 昭和电工株式会社 连铸铝合金棒材及其生产方法和装置
DE04753337T1 (de) * 2003-05-28 2007-11-08 Alcan Rolled Products Ravenswood LLC, Ravenswood Neue al-cu-li-mg-ag-mn-zr-legierung für bauanwendungen, die hohe festigkeit und hohe bruchzähigkeit erfordern
RU2415960C2 (ru) * 2005-06-06 2011-04-10 Алкан Реналю Алюминиево-медно-литиевый лист с высокой вязкостью разрушения для фюзеляжа самолета
JP4504914B2 (ja) * 2005-12-19 2010-07-14 株式会社神戸製鋼所 アルミニウム鋳塊の製造方法、アルミニウム鋳塊、およびアルミニウム鋳塊の製造用保護ガス
FR2894985B1 (fr) * 2005-12-20 2008-01-18 Alcan Rhenalu Sa Tole en aluminium-cuivre-lithium a haute tenacite pour fuselage d'avion
ATE471221T1 (de) * 2006-03-20 2010-07-15 Aleris Aluminum Koblenz Gmbh Verteilervorrichtung zur verwendung beim metallgiessen
US9019300B2 (en) 2006-08-04 2015-04-28 Apple Inc. Framework for graphics animation and compositing operations
CN201077859Y (zh) 2007-07-05 2008-06-25 包头铝业股份有限公司 在线除气过滤机构
WO2009073794A1 (en) * 2007-12-04 2009-06-11 Alcoa Inc. Improved aluminum-copper-lithium alloys
FR2925523B1 (fr) 2007-12-21 2010-05-21 Alcan Rhenalu Produit lamine ameliore en alliage aluminium-lithium pour applications aeronautiques
US20110003085A1 (en) * 2008-04-04 2011-01-06 Carrier Corporation Production Of Tailored Metal Oxide Materials Using A Reaction Sol-Gel Approach
JP2011529298A (ja) 2008-07-27 2011-12-01 ラムバス・インコーポレーテッド 受信側の供給負荷の分散方法及びシステム
FR2938553B1 (fr) * 2008-11-14 2010-12-31 Alcan Rhenalu Produits en alliage aluminium-cuivre-lithium
EP2276694A4 (en) 2009-04-03 2013-12-04 Carrier Corp PRODUCTION OF CUSTOM-MADE METAL OXIDE MATERIALS USING A SOL-GEL REACTION APPROACH
FR2947282B1 (fr) * 2009-06-25 2011-08-05 Alcan Rhenalu Alliage aluminium cuivre lithium a resistance mecanique et tenacite ameliorees
FR2969177B1 (fr) * 2010-12-20 2012-12-21 Alcan Rhenalu Alliage aluminium cuivre lithium a resistance en compression et tenacite ameliorees
BR112013020682B1 (pt) * 2011-02-17 2022-09-20 Arconic Technologies Llc Produto de liga de alumínio forjado
FR2971793B1 (fr) 2011-02-18 2017-12-22 Alcan Rhenalu Demi-produit en alliage d'aluminium a microporosite amelioree et procede de fabrication
US8365808B1 (en) * 2012-05-17 2013-02-05 Almex USA, Inc. Process and apparatus for minimizing the potential for explosions in the direct chill casting of aluminum lithium alloys
DE112014003205T5 (de) * 2013-07-11 2016-04-07 Aleris Rolled Products Germany Gmbh Verfahren zur Herstellung von Lithium enthaltenden Aluminiumlegierungen
FR3014905B1 (fr) 2013-12-13 2015-12-11 Constellium France Produits en alliage d'aluminium-cuivre-lithium a proprietes en fatigue ameliorees

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207974A (en) † 1991-07-29 1993-05-04 Aluminum Company Of America Partitioned receptacle for distributing molten metal from a spout to form an ingot
FR2757422A1 (fr) † 1996-12-24 1998-06-26 Stevtiss Articles textiles et filtres diffuseurs pour la filtration de metaux en fusion, notamment aluminium

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US20160355916A1 (en) 2016-12-08
JP2017507240A (ja) 2017-03-16
CN106170573A (zh) 2016-11-30
CN106170573B (zh) 2018-12-21
EP3080317B1 (fr) 2018-09-19
CA2932989C (fr) 2021-10-26
WO2015086922A3 (fr) 2015-08-27
BR112016012288A8 (pt) 2020-05-05
FR3014905B1 (fr) 2015-12-11
CN105814222A (zh) 2016-07-27
US10415129B2 (en) 2019-09-17
FR3014905A1 (fr) 2015-06-19
US20160237532A1 (en) 2016-08-18
US10689739B2 (en) 2020-06-23
EP3080317A2 (fr) 2016-10-19
CA2932991C (fr) 2021-10-26
WO2015086921A3 (fr) 2015-08-20
EP3080318A2 (fr) 2016-10-19
WO2015086921A2 (fr) 2015-06-18
CN105814222B (zh) 2019-07-23
JP2017505378A (ja) 2017-02-16
DE14825363T1 (de) 2017-01-12
RU2674790C1 (ru) 2018-12-13
JP6604949B2 (ja) 2019-11-13
DE14828176T1 (de) 2017-01-05
WO2015086922A2 (fr) 2015-06-18
BR112016012288B1 (pt) 2021-05-04
EP3080318B1 (fr) 2018-10-24
JP6683611B2 (ja) 2020-04-22
RU2674789C1 (ru) 2018-12-13
CA2932991A1 (fr) 2015-06-18

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