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    NEW 6XXX ALUMINUM ALLOYS
    2.
    发明公开
    NEW 6XXX ALUMINUM ALLOYS 审中-公开

    公开(公告)号：US20230374632A1

    公开(公告)日：2023-11-23

    申请号：US18224945

    申请日：2023-07-21

    Applicant: ARCONIC TECHNOLOGIES LLC

    Inventor： Lynette M. Karabin ,  Timothy A. Hosch ,  Dirk C. Mooy ,  Russell S. Long

    IPC: C22C21/02 ,  C22F1/00 ,  C22F1/05

    CPC classification number: C22C21/02 ,  C22F1/002 ,  C22F1/05

    Abstract: New 6xxx aluminum alloys are disclosed. In one embodiment, a new 6xxx aluminum alloy sheet product includes from 0.75 to 1.05 wt. % Si, from 0.65 to 0.95 wt. % Mg, wherein (wt. % Mg)/(wt. % Si) is not greater than 0.99:1, from 0.50 to 0.75 wt. % Cu, from 0.02 to 0.40 wt. % Mn, from 0.06 to 0.26 wt. % Cr, wherein (wt. % Mn)+(wt. % Cr) is at least 0.22 wt. %, from 0.01 to 0.30 wt. % Fe, up to 0.25 wt. % Zn, up to 0.20 wt. % Zr, up to 0.20 wt. % V, and up to 0.15 wt. % Ti, the balance being aluminum, optional incidental elements and impurities.

    MANUFACTURING PROCESS FOR OBTAINING HIGH STRENGTH EXTRUDED PRODUCTS MADE FROM 6XXX ALUMINIUM ALLOYS
    5.
    发明公开
    MANUFACTURING PROCESS FOR OBTAINING HIGH STRENGTH EXTRUDED PRODUCTS MADE FROM 6XXX ALUMINIUM ALLOYS 审中-公开

    公开(公告)号：US20230295777A1

    公开(公告)日：2023-09-21

    申请号：US18324203

    申请日：2023-05-26

    Applicant: CONSTELLIUM SINGEN GmbH

    Inventor： Alexis SKUBICH ,  Martin JARRETT

    IPC: C22C21/02 ,  C22F1/043 ,  C22F1/04 ,  C22F1/047 ,  C22F1/05 ,  C22C21/08 ,  B21C23/00 ,  B22D21/00

    CPC classification number: C22C21/02 ,  C22F1/043 ,  C22F1/04 ,  C22F1/047 ,  C22F1/05 ,  C22C21/08 ,  B21C23/002 ,  B22D21/007

    Abstract: A manufacturing process for obtaining extruded products made from a 6xxx aluminium alloy, wherein the said manufacturing process comprises 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 a value between 400° C. and 480° C. while ensuring billet surface never goes below a temperature substantially close to 400° C.;


    ii) the billet thus cooled is immediately extruded (step c)), i.e. a few tens seconds after the end of step b2).

    High strength ductile 6000 series aluminum alloy extrusions
    6.
    发明授权
    High strength ductile 6000 series aluminum alloy extrusions 有权

    公开(公告)号：US11708629B2

    公开(公告)日：2023-07-25

    申请号：US17735228

    申请日：2022-05-03

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Arianna T. Morales ,  Raja K. Mishra ,  Anil K. Sachdev

    IPC: C22F1/05 ,  C22C21/08

    CPC classification number: C22F1/05 ,  C22C21/08

    Abstract: An alloy composition is provided. The alloy composition includes silicon (Si) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %, magnesium (Mg) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %, chromium (Cr) at a concentration of greater than or equal to about 0.15 wt. % to less than or equal to about 0.3 wt. %, and a balance of the alloy composition being aluminum (Al). The alloy composition has an intermetallic phase content of less than or equal to about 3 wt. %. Methods of preparing the alloy composition and of processing the alloy composition are also provided.

    METHOD OF MANUFACTURING AN ALUMINIUM ALLOY PLATE FOR VACUUM CHAMBER ELEMENTS
    7.
    发明公开
    METHOD OF MANUFACTURING AN ALUMINIUM ALLOY PLATE FOR VACUUM CHAMBER ELEMENTS 审中-公开

    公开(公告)号：US20230220522A1

    公开(公告)日：2023-07-13

    申请号：US17999988

    申请日：2021-06-07

    Applicant: Novelis Koblenz GmbH

    Inventor： Dennis Aust ,  Fabian Ritz ,  Bernd Jacoby

    IPC: C22C21/08 ,  C22F1/00 ,  C22F1/05 ,  C22C21/02 ,  C25D11/16

    CPC classification number: C22C21/08 ,  C22F1/002 ,  C22F1/05 ,  C22C21/02 ,  C25D11/16

    Abstract: Described herein is a method of manufacturing an aluminium alloy plate for vacuum chamber elements, valves, or total assemblies, the method comprising the steps of: (a) providing a rolling feedstock material of an Al—Mg—Si aluminium alloy having a composition comprising of, in wt. %, Mg 0.80%-1.05%, Si 0.70%-1.0%, Mn 0.70%-0.90%, Fe up to 0.20%, Zn up to 0.08%, Cu up to 0.05%, Cr up to 0.03%, Ti up to 0.06%, unavoidable impurities and balance aluminium; (b) homogenizing of the rolling feedstock at a temperature in a range of 550-595° C.; (c) hot-rolling of the homogenized rolling feedstock in one or more rolling steps to a hot-rolled plate having a thickness of at least 10 mm; (d) solution heat-treatment (SHT″) of the hot rolled plate at a temperature in a range of 540-590° C.; (e) rapid cooling the SHT plate; (f) stretching of the cooled SHT plate to obtain a permanent elongation from 1-5%; (g) artificial ageing of the stretched plate.

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