| 摘要 |
A method of producing an aluminum product having high formability high fracture toughness, high strength and improved corrosion resistance, the method comprising: (a) providing stock including an aluminum base alloy consisting essentially of about 0.7 to 1.0 wt. % silicon, not more than about 0.3 wt. % iron, not more than about 0.5 wt. % copper, about 0.8 to 1.1 wt. % magnesium, about 0.3 to 0.4 wt. % manganese, and about 0.5 to 0.8 wt. % zinc, the remainder substantially aluminum, incidental elements and impurities; (b) homogenizing the stock at a temperature ranging from about 950 DEG to 1050 DEG F. for a time period ranging from about 2 to 20 hours; (c) hot rolling at a temperature ranging from about 750 DEG to 950 DEG F. will increase; (d) solution heat treating at a temperature ranging from about 1000 DEG to 1080 DEG F. for a time period ranging from about 5 minutes to one hour; (e) cooling by quenching at a rate of about 1000 DEG F./second to a temperature of 100 DEG F. or lower; and (f) artificially aging by reheating to a temperature ranging from about 300 DEG to 400 DEG F. for a time period ranging from about 2 to 20 hours to produce a T6 temper in the aluminum product. |
