ALUMINUM ALLOY SHEET AND METHOD FOR MANUFACTURING THE SAME

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 comp...

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Bibliographische Detailangaben
Hauptverfasser:	OKAMOTO, ICHIRO, YASUNAGA, KUNIHIRO, ANAMI, TOSHIYA, BARKER, SIMON WILLIAM, ZHAO, PIZHI, HAYASHI, NOBORU, GALLERNEAULT, MARK, KAZAMA, HITOSHI, GATENBY, KEVIN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	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 ~m or less, the recrystallized grain size is 15 ~m or less in the region at a depth of 10 to 30 ~m below the sheet surface, and the surface roughness is Ra 0.2 to 0.7 ~m.