Process for producing aluminum alloy for automobile body, and aluminum alloy
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsKunihiro Yasunaga, Hitoshi Kazama
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Abstract
In the production of an aluminum alloy plate for an automobile body, a molten alloy having an aluminum alloy composition of 3.00% by weight≦Mg≦3.50% by weight, 0.20% by weight≦Fe≦0.60% by weight, 0.10% by weight≦Si≦0.15% by weight, 0.01% by weight≦Ti≦0.05% by weight, Mn≦0.05% by weight and the balance of aluminum containing inevitable impurities is subjected to a liquid metal rolling to provide a plate material; the plate material is subjected to a cold rolling to provide a cold-rolled plate; and the cold-rolled plate is subjected to an annealing treatment at a temperature T set in a range of 340° C.≦T≦400° C. and for a period of time t set in a range of 9 hours≦t≦11 hours.
Claims2
A process for producing an aluminum alloy plate for an automobile body, comprising the steps of:
- subjecting a molten alloy having an aluminum alloy composition of 3.00% by weight≦Mg≦3.50% by weight, 0.20% by weight≦Fe≦0.60% by weight, 0.10% by weight≦Si≦0.15% by weight, 0.01% by weight≦Ti≦0.05% by weight, Mn<0.05% by weight and the balance of aluminum containing inevitable impurities to a liquid metal rolling to provide a plate material;
- subjecting said plate material to a cold rolling to provide a cold-rolled plate;
- and
- subjecting said cold-rolled plate to an annealing treatment at a temperature T set in a range of 340° C.≦T≦400° C. and for a period of time t set in a range of 9 hours≦t≦11 hours.
An aluminum alloy used for producing an aluminum alloy plate for an automobile body through a liquid metal rolling, a cold rolling and an annealing treatment, said aluminum alloy comprising 3.00% by weight≦Mg≦3.50% by weight, 0.20% by weight≦Fe≦0.60% by weight, 0.10% by weight≦Si≦0.15% by weight, 0.01% by weight≦Ti≦0.05% by weight, Mn<0.05% by weight and the balance of aluminum containing inevitable impurities.
Dependencies are inferred from the claim text.