Title:
ALUMINUM ALLOY SHEET HAVING EXCELLENT RIDGING RESISTANCE AND HEM BENDABILITY AND PRODUCTION METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2018/003709
Kind Code:
A1
Abstract:
The present invention pertains to an aluminum alloy sheet which is an aluminum alloy rolled material for molding, the aluminum alloy rolled material comprising an aluminum alloy which contains predetermined amounts of Mg, Si and Mn and satisfies the condition: 0.005 ≤ Mn + Cr ≤ 0.080% by mass. The aluminum alloy sheet has: a crystal particle size d1 in L-LT plane, as determined in a thickness range of ± (t/8) from a position at the thickness center (t/2) as a center, of 30-80 μm; a crystal particle size d2 in L-ST plane in the entire thickness of not more than 60 μm; a cube orientation area ratio C in a crystalline orientation on the sheet surface of not less than 10%; and excellent ridging resistance and hem bendability.
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Inventors:
KURAMOTO RYO (JP)
TAKEDA HIROKI (JP)
TAKEDA HIROKI (JP)
Application Number:
PCT/JP2017/023261
Publication Date:
January 04, 2018
Filing Date:
June 23, 2017
Export Citation:
Assignee:
UACJ CORP (JP)
International Classes:
C22C21/02; C22C21/06; C22F1/05; C22F1/00
Foreign References:
| JP2016098412A | 2016-05-30 | |||
| JP2015057513A | 2015-03-26 | |||
| JPH07228956A | 1995-08-29 | |||
| JP2017061709A | 2017-03-30 | |||
| JP2823797B2 | 1998-11-11 | |||
| JPS59685B2 | 1984-01-07 | |||
| JP2009263781A | 2009-11-12 | |||
| JP2010242215A | 2010-10-28 | |||
| JP2014234542A | 2014-12-15 | |||
| JPS5113318B2 | 1976-04-27 | |||
| JPS4939091B1 | 1974-10-23 |
Other References:
See also references of EP 3480326A4
Attorney, Agent or Firm:
KIMURA MITSURU (JP)
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