Metal treatment – Stock – Aluminum base
Reexamination Certificate
2005-03-08
2005-03-08
Wyszomierski, George (Department: 1742)
Metal treatment
Stock
Aluminum base
C148S692000, C420S532000, C420S535000, C420S538000
Reexamination Certificate
active
06863747
ABSTRACT:
An aluminum sheet material for automobiles is herein disclosed, having an aluminum alloy composition: (i) comprising 3.5 to 5 wt % of Si, 0.3 to 1.5 wt % of Mg, 0.4 to 1.5 wt % of Zn, 0.4 to 1.5 wt % of Cu, 0.4 to 1.5 wt % of Fe, and 0.6 to 1 wt % of Mn, and one or more members selected from the group of 0.01 to 0.2 wt % of Cr, 0.01 to 0.2 wt % of Ti, 0.01 to 0.2 wt % of Zr, and 0.01 to 0.2 wt % of V, with the balance of aluminum and unavoidable impurities, or (ii) comprising between more than 2.6 wt % and 5 wt % of Si, 0.2 to 1.0 wt % of Mg, 0.2 to 1.5 wt % of Zn, 0.2 to 1.5 wt % of Cu, 0.2 to 1.5 wt % of Fe, and between 0.05 and less than 0.6 wt % of Mn, and one or more members selected from the group of 0.01 to 0.2 wt % of Cr, 0.01 to 0.2 wt % of Ti, 0.01 to 0.2 wt % of Zr, and 0.01 to 0.2 wt % of V, with the balance of aluminum and unavoidable impurities. It is possible to produce an aluminum sheet material for automobiles that has excellent mechanical strength and bending property as well as enhanced weldability, by making the recycling use of recycled aluminum materials.
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Bekki Yoichiro
Hayashi Noboru
Kashiwazaki Kazuhisa
Birch & Stewart Kolasch & Birch, LLP
Combs Morillo Janelle
Furukawa-Sky Aluminum Corp.
Honda Giken Kogyo Kabushiki Kaisha
Wyszomierski George
LandOfFree
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