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公开(公告)号：US12077840B2
公开(公告)日：2024-09-03
申请号：US17049715
申请日：2019-04-18
摘要： The invention relates to 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. %, remainder aluminum, wherein the ratio Mg/Sifree is between 0.8 and 1.2 where Sifree is calculated according to the equation Sifree=Si−0.3*(Mn+Fe) where Si, Mn and Fe correspond to the content in weight % of Si, Mn and Fe of said 6xxx aluminum alloy and to the corresponding extruded product particularly suitable with a tensile yield strength higher than 280 MPa, and excellent crash properties. The invention also relates to the manufacturing process to obtain such extruded product.
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公开(公告)号：US20240279779A1
公开(公告)日：2024-08-22
申请号：US18569689
申请日：2022-06-16
发明人： Sabine PHILIPPE , Diana KOSCHEL
摘要： The invention relates to the field of 6XXX series aluminum alloy strips and to a process for manufacturing same. These strops are particularly useful for producing bodywork parts of motor vehicles on account of the compromise they offer between corrosion resistance and formability.
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公开(公告)号：US12043887B2
公开(公告)日：2024-07-23
申请号：US16682834
申请日：2019-11-13
申请人： Novelis Inc.
发明人： Hany Ahmed , Wei Wen , Corrado Bassi , Aude Despois , Guillaume Florey , Xavier Varone
IPC分类号： C22F1/05 , C22C21/04 , C22C21/06 , C22C21/08 , C22C21/14 , C22C21/16 , C22F1/043 , C22F1/047 , C22F1/057
CPC分类号： C22F1/05 , C22C21/04 , C22C21/06 , C22C21/08 , C22C21/14 , C22C21/16 , C22F1/043 , C22F1/047 , C22F1/057
摘要： Provided are new high strength 6xxx aluminum alloys and methods of making aluminum sheets thereof. These aluminum sheets may be used to fabricate components which may replace steel in a variety of applications including the transportation industry. In some examples, the disclosed high strength 6xxx alloys can replace high strength steels with aluminum. In one example, steels having a yield strength below 340 MPa may be replaced with the disclosed 6xxx aluminum alloys without the need for major design modifications.
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公开(公告)号：US12043878B2
公开(公告)日：2024-07-23
申请号：US18482866
申请日：2023-10-07
发明人： Nicholas Mykulowycz , Alison Forsyth , Alan Lai , Lyle Cheatham
IPC分类号： C21D9/46 , B32B15/01 , B33Y10/00 , B33Y80/00 , C22C1/04 , C22C21/02 , C22C21/08 , C22C21/10 , C22C21/14 , C22C21/16 , C22F1/00 , C22F1/043 , C22F1/053 , C22F1/057 , B23K20/00 , B32B7/02
CPC分类号： C21D9/46 , B32B15/016 , B33Y10/00 , B33Y80/00 , C22C1/04 , C22C21/02 , C22C21/08 , C22C21/10 , C22C21/14 , C22C21/16 , C22F1/002 , C22F1/043 , C22F1/053 , C22F1/057 , B23K20/002 , B32B7/02 , B32B2250/03 , B32B2307/7376 , B32B2311/24
摘要： A method for the manufacturing of an object. The method includes receiving a desired alloy composition for the object, depositing a plurality of foils in a stack to form the object, applying heat to the stack at a first temperature to bond the plurality of foils to each other, and applying heat to the stack at a second temperature to homogenize the composition of the stack. The homogenized stack has the desired alloy composition.
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公开(公告)号：US20240218485A1
公开(公告)日：2024-07-04
申请号：US18558222
申请日：2022-04-21
发明人： Lionel PEGUET , Armelle DANIELOU
CPC分类号： C22C21/02 , B23K1/0012 , C22F1/043
摘要： A strip or sheet intended for the manufacture of brazed heat exchangers, having a core layer made of an aluminum alloy with the following composition (% by weight): Si: more than 0.25% and less than 0.70%; Fe: less than 0.25% and at least 0.08%; Cu: more than 0.60% and less than 1.10%; Mn: more than 1.40% and less than 2.00%; Ti: less than 0.15% and more than 0.05%; Mg: less than 0.05%; Zr: less than 0.01%; Cr: less than 0.01%; Zn: less than 0.20%; impurities: less than 0.05% each and less than 0.15% in total; remainder aluminum.
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6.发明公开公开(公告)号：US20240209479A1
公开(公告)日：2024-06-27
申请号：US18533799
申请日：2023-12-08
申请人： Resonac Corporation
发明人： Takuya ARAYAMA
CPC分类号： C22C21/02 , B22D11/003 , C22F1/002 , C22F1/043 , C22F1/05 , C22C2200/00
摘要： Provided is an aluminum alloy forging material having an alloy composition including Cu: 0.30 mass % to 1.0 mass %, Mg: 0.80 mass % to 1.8 mass %, Si: 0.90 mass % to 1.9 mass %, Mn: 0.30 mass % to 1.2 mass %, Fe: 0.20 mass % to 0.65 mass %, Zn: 0.25 mass % or less, Cr: 0.050 mass % to 0.30 mass %, Ti: 0.01 mass % to 0.1 mass %, B: 0.0010 mass % to 0.030 mass %, and Zr: 0.0010 mass % to 0.050 mass %, and having a ratio Fe/Mn of less than 1.4, and with the remainder being made up of Al and unavoidable impurities, wherein an average crystal particle size of an alloy structure after forging is 50 μm to 120 μm, and an average crystal particle size of an AlFeSi(Mn)-based compound present at crystal grain boundaries is 3.0 μm or less.
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7.发明公开公开(公告)号：US20240200170A1
公开(公告)日：2024-06-20
申请号：US18536573
申请日：2023-12-12
申请人： Resonac Corporation
发明人： Takuya ARAYAMA
摘要： Provided is an aluminum alloy forging material having an alloy composition including Cu: 0.30 mass % to 1.0 mass %, Mg: 0.80 mass % to 1.8 mass %, Si: 0.90 mass % to 1.9 mass %, Mn: 0.30 mass % to 1.2 mass %, Fe: 0.20 mass % to 0.65 mass %, Zn: 0.25 mass % or less, Cr: 0.050 mass % to 0.30 mass %, Ti: 0.01 mass % to 0.1 mass %, B: 0.0010 mass % to 0.030 mass %, and Zr: 0.0010 mass % to 0.050 mass %, and having a ratio Fe/Mn of the Fe content to the Mn content (mass ratio) of less than 1.4, and with the remainder being made up of Al and unavoidable impurities, wherein the number density of precipitates containing Mn within a range of 1.5 μm including crystal grain boundaries in an alloy structure after forging is 4 particles/μm2 or less.
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公开(公告)号：US20240117473A1
公开(公告)日：2024-04-11
申请号：US18276483
申请日：2022-01-06
申请人： UACJ Corporation
发明人： Yuki Totani , Takeyoshi Doko
CPC分类号： C22C21/02 , C21D8/0236 , C21D8/0273 , C21D9/46 , C22F1/043
摘要： An aluminum alloy sheet includes a function of heat joining in a single layer. The aluminum alloy sheet is formed of an aluminum alloy comprising: Si of 1.50 to 5.00 mass %; Fe of 0.01 to 2.00 mass %; and Mn of 0.50 to 2.00 mass %, with the balance being Al and inevitable impurities. In a heating test in which a temperature is raised from 300° C. to 400° C. at an average temperature rising rate of 60° C./min or less and held at 600±3° C. for 5±3 minutes, average grain size in a plane parallel to a rolled surface after the heating test is 370 μm or more, and an average number of grains in a sheet thickness direction after the heating test is 1.5 pieces or more.
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公开(公告)号：US20240035136A1
公开(公告)日：2024-02-01
申请号：US18487373
申请日：2023-10-16
申请人： Novelis Inc.
发明人： Sazol Kumar Das , Milan Felberbaum
IPC分类号： C22F1/05 , B22D11/12 , C22F1/04 , C22C21/16 , C22F1/043 , C22F1/057 , C22C21/12 , C22F1/053 , C22C21/08 , C22C21/14 , B22D11/00 , C22C21/02
CPC分类号： C22F1/05 , B22D11/1206 , C22F1/04 , C22C21/16 , C22F1/043 , C22F1/057 , C22C21/12 , C22F1/053 , C22C21/08 , C22C21/14 , B22D11/003 , C22C21/02
摘要： Described herein are 6xxx series aluminum alloys with unexpected properties and novel methods of producing such aluminum alloys. The aluminum alloys are highly formable and exhibit high strength. The alloys are produced by continuous casting and can be hot rolled to a final gauge and/or a final temper. The alloys can be used in automotive, transportation, industrial, and electronics applications, just to name a few.
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公开(公告)号：US20230416862A1
公开(公告)日：2023-12-28
申请号：US18238310
申请日：2023-08-25
发明人： Nicholas Mykulowycz , Alison Forsyth , Alan Lai , Lyle Cheatham
IPC分类号： C21D9/46 , C22C1/04 , B32B15/01 , B33Y10/00 , B33Y80/00 , C22C21/02 , C22C21/10 , C22C21/14 , C22C21/16 , C22F1/00 , C22F1/043 , C22F1/053 , C22F1/057
CPC分类号： C21D9/46 , C22C1/04 , B32B15/016 , B33Y10/00 , B33Y80/00 , C22C21/02 , B23K20/002 , C22C21/14 , C22C21/16 , C22F1/002 , C22F1/043 , C22F1/053 , C22F1/057 , C22C21/10
摘要： A method for the manufacturing of an object. The method includes receiving a desired alloy composition for the object, depositing a plurality of foils in a stack to form the object, applying heat to the stack at a first temperature to bond the plurality of foils to each other, and applying heat to the stack at a second temperature to homogenize the composition of the stack. The homogenized stack has the desired alloy composition.
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