Title:
ALUMINUM ALLOY ROLLED SHEET AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2023/068293
Kind Code:
A1
Abstract:
This aluminum alloy rolled sheet has a chemical composition containing 0.80-2.5 mass% of Si, 0.40-1.2 mass% of Mn, 0.25-0.65 mass% of Mg, and 0.050-0.45 mass% of Fe, the balance being Al and unavoidable impurities. In the aluminum alloy rolled sheet, the uniform elongation in a direction perpendicular to rolling is 19.5% or greater, and the anisotropy Δr value of the Lankford value ranges from –0.50 to 0. The aluminum alloy rolled sheet has characteristics such that that the 0.2% proof stress reaches 175 MPa or greater after introduction of 2% pre-strain and subsequent aging at a holding temperature of 170°C for a holding time of 20 minutes.
Inventors:
YAMAZAKI YUKI (JP)
TAKEDA HIROKI (JP)
TAKEDA HIROKI (JP)
Application Number:
PCT/JP2022/038914
Publication Date:
April 27, 2023
Filing Date:
October 19, 2022
Export Citation:
Assignee:
UACJ CORP (JP)
International Classes:
C22C21/02; C22F1/00; C22F1/043; C22F1/047; C22F1/05
Foreign References:
| JP2017048451A | 2017-03-09 | |||
| JP2021059774A | 2021-04-15 | |||
| JP2015040340A | 2015-03-02 | |||
| JP2009041045A | 2009-02-26 | |||
| JP2017048452A | 2017-03-09 |
Attorney, Agent or Firm:
AICHI, TAKAHASHI, IWAKURA & ASSOCIATES (JP)
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