| 摘要 |
The invention relates to a method for manufacturing a product comprising an AlCu alloy comprising (weight per cent): Cu: 3.8-5.5 Mg: 0.2-0.8 Mn: 0.2-0.6 Ag 0.2-0.5 Si<0.15 Fe<0.20 Zn<0.25 Cr<0.05 Zr<0.10, Ti<0.15 others <0.05, remainder aluminium. In an embodiment the method comprises naturally aging the product forming in at least one process, such as stretch forming, drawing, flow spinning, and/or bending and artificial aging at a temperature from 280 to 340° F. (138 to 171° C.) for a duration from 6 to 36 hours. The method is particularly useful to make armor products. |
