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1. (WO2006011242) ALUMINUM ALLOY SHEET AND METHOD FOR MANUFACTURING THE SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/011242    International Application No.:    PCT/JP2004/011323
Publication Date: 02.02.2006 International Filing Date: 30.07.2004
Chapter 2 Demand Filed:    17.05.2006    
IPC:
C22C 21/06 (2006.01), C22F 1/047 (2006.01), B22D 11/00 (2006.01), B22D 11/06 (2006.01)
Applicants: NIPPON LIGHT METAL CO., LTD. [JP/JP]; 2-2-20, Higashi-Shinagawa, Shinagawa-ku, Tokyo 140-0002 (JP) (For All Designated States Except US).
HONDA MOTOR CO., LTD. [JP/JP]; 2-1-1, Minami-Aoyama, Minato-ku, Tokyo 170-0062 (JP) (For All Designated States Except US).
NOVELIS INC. [CA/CA]; 70 York Street, Suite 1510, Toronto, Ontario M5J 1S9 (CA) (For All Designated States Except US).
ZHAO, Pizhi [CN/JP]; (JP) (For US Only).
ANAMI, Toshiya [JP/JP]; (JP) (For US Only).
OKAMOTO, Ichiro [JP/JP]; (JP) (For US Only).
KAZAMA, Hitoshi [JP/JP]; (JP) (For US Only).
YASUNAGA, Kunihiro [JP/JP]; (JP) (For US Only).
HAYASHI, Noboru [JP/JP]; (JP) (For US Only).
GATENBY, Kevin [CA/CA]; (CA) (For US Only).
GALLERNEAULT, Mark [CA/CA]; (CA) (For US Only).
BARKER, Simon [CA/CA]; (CA) (For US Only)
Inventors: ZHAO, Pizhi; (JP).
ANAMI, Toshiya; (JP).
OKAMOTO, Ichiro; (JP).
KAZAMA, Hitoshi; (JP).
YASUNAGA, Kunihiro; (JP).
HAYASHI, Noboru; (JP).
GATENBY, Kevin; (CA).
GALLERNEAULT, Mark; (CA).
BARKER, Simon; (CA)
Agent: YOSHIOKA, Kohji; NISSHO & CO.,, KN Building,, 7-22-27, Nishishinjuku,, Shinjuku-ku, Tokyo 160-0023 (JP)
Priority Data:
Title (EN) ALUMINUM ALLOY SHEET AND METHOD FOR MANUFACTURING THE SAME
(FR) FEUILLE D’ALLIAGE D’ALUMINIUM ET MÉTHODE DE FABRICATION ASSOCIÉE
Abstract: front page image
(EN)An aluminum alloy sheet having excellent press formability and stress corrosion cracking resistance, comprising 3.3 to 3.6 percent by weight of Mg and 0.1 to 0.2 percent by weight of Mn, furthermore, 0.05 to 0.3 percent by weight of Fe and 0.05 to 0.15 percent by weight of Si, and the remainder comprising of Al and incidental impurities, wherein the sizes of intermetallic compounds is 5 µm or less, the recrystallized grain size is 15 µm or less in the region at a depth of 10 to 30 µm below the sheet surface, and the surface roughness is Ra 0.2 to 0.7 µm.
(FR)L'invention concerne une feuille d’alliage d’aluminium offrant une excellente formabilité sous presse ainsi qu’une résistance aux craquelures induites par les efforts et la corrosion, comprenant entre 3,3 et 3,6 pour-cent en poids de Mg et 0,1 à 0,2 pour-cent en poids de Mn, ainsi que 0,05 à 0,3 pour-cent en poids de Fe et 0,05 à 0,15 pour-cent en poids de Si et le reste comprenant Al et des impuretés incidentes, les tailles des composés intermétalliques étant 5 µm ou moins, la taille des grains recristallisés étant 15 µm ou moins dans la région située à une profondeur de 10 à 30 µm sous la surface de la feuille, et la rugosité de surface Ra est comprise entre 0,2 et 0,7 µm.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)