公开(公告)号：US11767608B2

公开(公告)日：2023-09-26

申请号：US16542678

申请日：2019-08-16

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Ali Unal ,  June M. Epp ,  James M. Marinelli ,  Marissa Menanno

IPC: C23C28/00 ,  C23C28/04 ,  C25D11/16 ,  C25D11/24 ,  C25D11/08

CPC classification number: C25D11/24 ,  C25D11/08 ,  C25D11/16

Abstract: Methods of preparing 7xxx aluminum alloy products for adhesive bonding and products made therefrom are disclosed. Generally, the methods include preparing a 7xxx aluminum alloy product for anodizing, then anodizing the 7xxx aluminum alloy product, and then contacting the anodized 7xxx aluminum alloy product with an appropriate chemical to create a functionalized layer. The new 7xxx aluminum alloy products may realize improved shear bonding performance.

公开(公告)号：US20210308783A1

公开(公告)日：2021-10-07

申请号：US17235598

申请日：2021-04-20

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Ali Unal ,  June M. Epp ,  Donald J. Spinella ,  Raymond J. Kilmer ,  Li M. Ming

IPC: B23K11/11 ,  B23K35/02 ,  B23K35/28

Abstract: A method for resistance spot welding aluminum alloys includes reducing the electrical resistance of an outer surface of the stackup in contact with the anode while leaving the faying surfaces at higher resistances, e.g., by grit blasting the anode contacting surface. High resistance electrodes, e.g., with refractory metal content may be used. Stackups of greater than two members may be used. Sheet material may be prepared having the lower and higher resistance surfaces and used with other sheets having higher resistance surfaces. The cathode contacting surface of the stackup may also have a reduced resistance. The method and sheet may be used in assembling vehicle bodies.

公开(公告)号：US11781237B2

公开(公告)日：2023-10-10

申请号：US17849370

申请日：2022-06-24

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Ali Unal ,  June M. Epp ,  James M. Marinelli ,  Marissa Menanno

IPC: C25D11/24 ,  C25D11/08 ,  C25D11/16

CPC classification number: C25D11/24 ,  C25D11/08 ,  C25D11/16

Abstract: Methods of preparing 7xxx aluminum alloy products for adhesive bonding and products made therefrom are disclosed. Generally, the methods include preparing a 7xxx aluminum alloy product for anodizing, then anodizing the 7xxx aluminum alloy product, and then contacting the anodized 7xxx aluminum alloy product with an appropriate chemical to create a functionalized layer. The new 7xxx aluminum alloy products may realize improved shear bonding performance.

公开(公告)号：US20220333265A1

公开(公告)日：2022-10-20

申请号：US17849370

申请日：2022-06-24

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Ali Unal ,  June M. Epp ,  James M. Marinelli ,  Marissa Menanno

IPC: C25D11/24 ,  C25D11/08 ,  C25D11/16

Abstract: Methods of preparing 7xxx aluminum alloy products for adhesive bonding and products made therefrom are disclosed. Generally, the methods include preparing a 7xxx aluminum alloy product for anodizing, then anodizing the 7xxx aluminum alloy product, and then contacting the anodized 7xxx aluminum alloy product with an appropriate chemical to create a functionalized layer. The new 7xxx aluminum alloy products may realize improved shear bonding performance.

公开(公告)号：US20220251710A1

公开(公告)日：2022-08-11

申请号：US17730034

申请日：2022-04-26

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： June M. Epp ,  Ali Unal

IPC: C23C22/56 ,  B23K26/361 ,  B23K26/40 ,  C09J5/02 ,  C23C22/73 ,  B23K26/362 ,  B23K26/36 ,  B23K26/352

Abstract: A preparation method for adhesive bonding of magnesium-containing aluminum alloy products includes a magnesium-containing aluminum alloy product including a matrix and a surface oxide layer overlying the matrix. The magnesium-containing aluminum alloy product also includes intermetallic particles at least proximal the surface oxide layer. The method also includes ablating at least some of the intermetallic particles via an energy source, and in the absence of melting of the matrix of the magnesium-containing aluminum alloy product.