公开(公告)号：US20180304584A1

公开(公告)日：2018-10-25

申请号：US15959516

申请日：2018-04-23

Applicant: Novelis Inc.

Inventor： Rajeev G. Kamat ,  Hashem Mousavi-Anijdan ,  Rahul Vilas Kulkarni ,  Juergen Timm ,  Corrado Bassi ,  Robert Bruce Wagstaff ,  Guillaume Florey ,  Cyrille Bezencon ,  Samuel R. Wagstaff ,  David Leyvraz

IPC: B32B15/01 ,  C22C21/10 ,  C22C21/08 ,  C22C21/02

Abstract: Provided herein are new clad aluminum alloy products and methods of making these alloys. These alloy products possess a combination of strength and other key attributes, such as corrosion resistance, formability, and joining capabilities. The alloy products can be used in a variety of applications, including automotive, transportation, and electronics applications.

公开(公告)号：US20180171452A1

公开(公告)日：2018-06-21

申请号：US15838651

申请日：2017-12-12

Applicant: Novelis Inc.

Inventor： Guillaume Florey ,  Corrado Bassi ,  Aude Despois ,  David Leyvraz

IPC: C22F1/05 ,  C22F1/00 ,  C22C21/04 ,  C22C21/08

Abstract: Disclosed are high-strength, highly deformable aluminum alloys and methods of making and processing such alloys. More particularly, disclosed is a heat treatable aluminum alloy exhibiting improved mechanical strength and formability. The processing method includes casting, homogenizing, hot rolling, solutionizing, pre-aging and in some cases pre-straining. In some cases, the processing steps can further include cold rolling and/or heat treating.

公开(公告)号：US09926619B2

公开(公告)日：2018-03-27

申请号：US15141694

申请日：2016-04-28

Applicant: NOVELIS INC.

Inventor： Cyrille Bezencon ,  Corrado Bassi ,  Frank Schellinger

IPC: B32B15/01 ,  C22C21/02 ,  B23K35/28 ,  B23K35/00 ,  B23K35/02 ,  C22C21/04 ,  C22C21/14 ,  C22F1/043 ,  B23K1/005 ,  C22C21/16 ,  B23K26/323 ,  B23K1/19 ,  B23K26/24 ,  C22C21/08 ,  C22F1/047 ,  C22F1/057 ,  C23C2/06 ,  C23C2/40 ,  B23K26/242 ,  B23K103/20 ,  B23K101/00 ,  B23K101/18

CPC classification number: C22C21/02 ,  B23K1/0056 ,  B23K1/19 ,  B23K26/24 ,  B23K26/242 ,  B23K26/323 ,  B23K35/002 ,  B23K35/0238 ,  B23K35/286 ,  B23K2101/006 ,  B23K2101/18 ,  B23K2103/20 ,  B32B15/012 ,  B32B15/016 ,  C22C21/04 ,  C22C21/08 ,  C22C21/14 ,  C22C21/16 ,  C22F1/043 ,  C22F1/047 ,  C22F1/057 ,  C23C2/06 ,  C23C2/40 ,  Y10T428/12757 ,  Y10T428/12764

Abstract: In a first aspect, the invention provides aluminum alloy comprising the following composition, all values in weight %: Si 0.25-1.5 Cu 0.3-1.5 Fe up to 0.5 Mn up to 0.1 all other elements including Mg being incidental and present (if at all) then in an amount less than or equal to 0.05 individually, and less than or equal to 0.15 in aggregate, the balance being aluminum. In a second aspect, the invention provides a composite aluminum sheet product comprising a core layer and at least one clad layer wherein the at least one clad layer is an aluminum alloy comprising the following composition, all values in weight %: Si 0.25-1.5 Cu 0.3-1.5 Fe up to 0.5 Mn up to 0.1 all other elements including Mg being incidental and present (if at all) then in an amount less than or equal to 0.05 individually, and less than or equal to 0.15 in aggregate, the balance being aluminum. In a third aspect, the invention provides a method of making a joined structure of a steel component and an aluminum component made from the alloy and/or the sheet product of the invention.

公开(公告)号：US09731772B2

公开(公告)日：2017-08-15

申请号：US14972646

申请日：2015-12-17

Applicant: NOVELIS INC.

Inventor： Corrado Bassi ,  Juergen Timm

IPC: B62D25/10 ,  B62D25/08 ,  B62D25/12 ,  C22C21/08 ,  C22F1/05 ,  C22C21/04 ,  C22C21/02

CPC classification number: B62D25/105 ,  B62D25/08 ,  B62D25/082 ,  B62D25/085 ,  B62D25/10 ,  B62D25/12 ,  C22C21/02 ,  C22C21/04 ,  C22C21/08 ,  C22F1/05 ,  Y10T428/12764

Abstract: In a car body or component thereof with at least one first component of sheet metal of a first aluminum alloy and at least one second component of sheet metal of a second aluminum alloy, the first and second aluminum alloys are of type AlMgSi and in the sheet metal of the second aluminum alloy a substantial part of the elements Mg and Si, which are required to achieve artificial ageing in solid solution, is present in the form of separate Mg2Si and/or Si particles in order to avoid artificial ageing. By reduction of the hardening capacity of the second component during artificial ageing of the body as part of the paint baking cycle, the car body has an improved impact protection for pedestrians in comparison with solutions according to the prior art.

公开(公告)号：US20160326619A1

公开(公告)日：2016-11-10

申请号：US15145477

申请日：2016-05-03

Applicant: Novelis Inc.

Inventor： Corrado Bassi ,  Aude Despois ,  Julie Richard

IPC: C22F1/05

CPC classification number: C22F1/05 ,  C22C21/00 ,  C22C21/08 ,  C22F1/04

Abstract: Processes for improving the strength of heat-treatable, age hardenable aluminum alloys, such as 6xxx, 2xxx and 7xxx aluminum alloys, are provided. The processes for improving the strength of heat-treatable, age-hardenable aluminum alloys involve a heat treatment step, termed “shock heat treatment,” which involves heat treatment at 200 to 350° C. that is conducted at a fast heating rate (for example 10 to 220° C./seconds) for a relatively short period of time (for example, for 60 seconds or less or for 5 to 30 seconds). In some examples, the shock heat treatment is accomplished by contact heating, such as heating an aluminum alloy article between complementary shaped heated dies of a press. Aluminum alloy articles, such as automotive panels, produced by the disclosed shock heat treatment are also provided.

Abstract translation: 提供了用于提高可热处理的老化硬化铝合金（如6xxx，2xxx和7xxx铝合金）强度的工艺。 用于提高可热处理的老化硬化的铝合金的强度的方法包括称为“冲击热处理”的热处理步骤，其包括在200-350℃下热处理，其以快速加热速率进行（对于 例如10至220℃/秒），持续相对短的时间（例如，60秒或更少或5至30秒）。 在一些实例中，冲击热处理通过接触加热来实现，例如在压机的互补形状的加热模具之间加热铝合金制品。 还提供了通过公开的冲击热处理制造的铝合金制品，例如汽车面板。

公开(公告)号：US09242678B2

公开(公告)日：2016-01-26

申请号：US14027718

申请日：2013-09-16

Applicant: Novelis Inc.

Inventor： Corrado Bassi ,  Juergen Timm

IPC: C22C21/08 ,  B62D25/10 ,  C22F1/05 ,  B62D25/08 ,  B62D25/12 ,  C22C21/04

CPC classification number: B62D25/105 ,  B62D25/08 ,  B62D25/082 ,  B62D25/085 ,  B62D25/10 ,  B62D25/12 ,  C22C21/02 ,  C22C21/04 ,  C22C21/08 ,  C22F1/05 ,  Y10T428/12764

Abstract: In a car body or component thereof with at least one first component of sheet metal of a first aluminum alloy and at least one second component of sheet metal of a second aluminum alloy, the first and second aluminum alloys are of type AlMgSi and in the sheet metal of the second aluminum alloy a substantial part of the elements Mg and Si, which are required to achieve artificial ageing in solid solution, is present in the form of separate Mg2Si and/or Si particles in order to avoid artificial ageing. By reduction of the hardening capacity of the second component during artificial ageing of the body as part of the paint baking cycle, the car body has an improved impact protection for pedestrians in comparison with solutions according to the prior art.