| 摘要 |
An aluminum alloy containing about 0.5 to 1.3% magnesium, about 0.4 to 1.2% silicon, about 0.6 to 1.2% copper, about 0.1 to 1% manganese, the balance substantially being aluminum along with impurities and incidental elements, is made into wrought wire, rod, bar or tube products by extrusion and cold working, preferably drawing, operations. The method includes extrusion within about 300 DEG or 400 DEG up to about 650 DEG or 700 DEG F. and even possibly up to 750 DEG or 800 DEG F. on a less preferred basis. Following extrusion, the product may be cold drawn either before or after, or both before and after, solution heat treatment and quenching. Rapid quenching is preferred. The product can then be artificially aged, for instance by heating to 375 DEG F. The resulting product has a fine grain size and consistent and good properties so as to be useful in a number of applications.
|
