Aluminum alloy sheet product
AssigneeAlcan International Limited
InventorsPaul E. Fortin, Michael J. Bull
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Abstract
Aluminum alloy sheet constituted of an alloy containing 0.65-0.79% Cu, 0.62-0.82% Mg, and 0.60-1.0% Si, produced by the successive steps of casting, homogenizing, cold rolling and solution-heat-treating, the sheet having strength and formability suitable for forming into automotive body members and being age-hardenable under paint-baking conditions.
Claims8
Aluminum alloy sheet constituted of an alloy consisting essentially of 0.65-0.79% Cu, 0.62-0.82% Mg, 0.60-1.0% Si, 0.10-0.50% Mn, up to 0.40% Fe, up to 0.10% Ti, balance Al.
Aluminum alloy sheet having strength and formability suitable for forming into automotive body members and age-hardenable under paint-baking conditions, said sheet being constituted of an alloy consisting essentially of 0.65-0.79% Cu, 0.62-0.82% Mg, 0.70-0.90% Si, 0.17-0.27% Mn, up to 0.30% Fe, up to 0.03% Ti, balance Al, said sheet being produced by casting an ingot of the alloy, homogenizing the ingot, hot rolling the ingot to produce a slab, cold rolling the slab to produce the sheet, and solution-heat-treating the sheet.
An automotive body member comprising a formed and age-hardened article of sheet of an aluminum alloy consisting esssentially of 0.65-0.79% Cu, 0.62-0.82% Mg, 0.70-0.90% Si, 0.17-0.27% Mn, up to 0.30% Fe, up to 0.03% Ti, balance Al, said sheet being produced by casting an ingot of the alloy, homogenizing the ingot, hot rolling the ingot to produce a slab, cold rolling the slab to produce the sheet, and solution-heat-treating the sheet.
Dependencies are inferred from the claim text.