公开(公告)号：US20210238722A1

公开(公告)日：2021-08-05

申请号：US17238911

申请日：2021-04-23

Applicant: UACJ Corporation

Inventor： Ryohei Kobayashi ,  Satoshi Suzuki ,  Tatsuo Oba

IPC: C22F1/047 ,  C22C21/00 ,  C22C21/08 ,  C22F1/04

Abstract: An aluminum alloy sheet according to the present disclosure includes 0.05 to 0.60% by mass of Si, 0.05 to 0.80% by mass of Fe, 0.05 to 0.25% by mass of Cu, 0.80 to 1.50% by mass of Mn, 0.80 to 1.50% by mass Mg, Al, and inevitable impurities. In this aluminum alloy sheet, a 45° earing ratio of a cup formed by a first drawing of the aluminum alloy sheet is 2.0% or less, and a value obtained by subtracting the 45° earing ratio from a 0-180° earing ratio of the cup formed by the first drawing of the aluminum alloy sheet is −1.0% or more and 2.0% or less.

公开(公告)号：US20210214827A1

公开(公告)日：2021-07-15

申请号：US17215191

申请日：2021-03-29

Applicant: UACJ Corporation

Inventor： Ryohei Kobayashi ,  Satoshi Suzuki ,  Tatsuo Oba

IPC: C22F1/047 ,  C22C21/00 ,  C22C21/08 ,  C22F1/04

Abstract: An aluminum alloy sheet according to the present disclosure includes 0.05 to 0.60% by mass of Si, 0.05 to 0.80% by mass of Fe, 0.05 to 0.25% by mass of Cu, 0.80 to 1.50% by mass of Mn, 0.80 to 1.50% by mass Mg, Al, and inevitable impurities. In this aluminum alloy sheet, a 45° earing ratio of a cup formed by a first drawing of the aluminum alloy sheet is 2.0% or less, and a value obtained by subtracting the 45° earing ratio from a 0-180° earing ratio of the cup formed by the first drawing of the aluminum alloy sheet is −1.0% or more and 2.0% or less.

公开(公告)号：US11920221B2

公开(公告)日：2024-03-05

申请号：US17270488

申请日：2019-08-28

Applicant: UACJ Corporation

Inventor： Tomoyuki Kudo ,  Ryohei Kobayashi

IPC: C22C21/08

CPC classification number: C22C21/08

Abstract: An aluminum alloy sheet has a composition comprising 0.5% or less by mass of Si, 0.7% or less by mass of Fe, 0.3% or less by mass of Cu, 0.4 to 1.5% by mass of Mn, 0.7 to 1.5% by mass of Mg and an balance comprising Al and inevitable impurities. A degree of integration in the Goss orientation is 1.5 or more. A degree of integration in the Cu orientation is 6.2 or less. A tensile strength is 200 to 310 MPa. An areal ratio of an α-Al—Fe—Mn—Si based intermetallic compound with an equivalent circle diameter of 0.5 μm or more is preferably 2.6% or more.

公开(公告)号：US20200010942A1

公开(公告)日：2020-01-09

申请号：US16482501

申请日：2018-02-01

Applicant: UACJ Corporation

Inventor： Ryohei Kobayashi ,  Satoshi Suzuki ,  Tatsuo Oba

IPC: C22F1/047 ,  C22C21/08 ,  C22C21/00 ,  C22F1/04

Abstract: An aluminum alloy sheet according to the present disclosure includes 0.05 to 0.60% by mass of Si, 0.05 to 0.80% by mass of Fe, 0.05 to 0.25% by mass of Cu, 0.80 to 1.50% by mass of Mn, 0.80 to 1.50% by mass Mg, Al, and inevitable impurities. In this aluminum alloy sheet, a 45° caring ratio of a cup formed by a first drawing of the aluminum alloy sheet is 2.0% or less, and a value obtained by subtracting the 45° caring ratio from a 0-180° caring ratio of the cup formed by the first drawing of the aluminum alloy sheet is −1.0% or more and 2.0% or less.