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AssigneeGM Global Technology Operations LLC
InventorsHenry ZHAN, Jiachen Pang, Michael Bugeaud
Estimating the term…
A method of manufacturing aluminum sheet material includes melting secondary aluminum and adding primary aluminum and other alloying elements to the melt to achieve an alloy composition of from 2.5 wt % to 6.3 wt % Mg, from 0.6 wt % to 2.5 wt % Si, from 0.2 wt % to 0.4 wt % Fe, from 0.05 wt % to 0.2 wt % Cr, up to 0.6 wt % Mn, up to 0.1 wt % Cu, up to 0.1 wt % Zn, the balance being Al and unavoidable impurities, wherein the Si and Mg contents satisfy the relationship (Si wt. %>0.5*Mg wt. %-0.65 wt. %). The alloy is then continuously cast into an aluminum sheet. Aluminum sheet material made according to the process, and an aluminum alloy adapted for the process are also disclosed.
A method of manufacturing aluminum sheet material comprising the steps of:
An aluminum sheet material that has been continuously cast from an alloy consisting essentially of from 2.5 wt % to 6.3 wt % Mg, from 0.6 wt % to 2.5 wt % Si, from 0.2 wt % to 0.4 wt % Fe, from 0.05 wt % to 0.2 wt % Cr, up to 0.6 wt % Mn, up to 0.2 wt % Cu, up to 0.2 wt % Zn, the balance being Al and unavoidable impurities, wherein the Si and Mg contents satisfy the relationship (Si wt %>0.5*Mg wt %-0.65 wt %).
An aluminum alloy adapted for continuous casting, the aluminum alloy comprising from 2.5 wt % to 6.3 wt % Mg, from 0.6 wt % to 2.5 wt % Si, from 0.2 wt % to 0.4 wt % Fe, from 0.05 wt % to 0.2 wt % Cr, up to 0.6 wt % Mn, up to 0.2 wt % Cu, up to 0.2 wt % Zn, the balance being Al and unavoidable impurities, wherein the Si and Mg contents satisfy the relationship (Si wt %>0.5*Mg wt %-0.65 wt %).
Dependencies are inferred from the claim text.