| 摘要 |
FIELD: metallurgy. SUBSTANCE: invention relates to deforming aluminum alloys of system aluminum-copper-magnesium. Aluminum- -base alloy comprises the following components, wt.-%: copper, 3.8-4.9; magnesium, 0.4-2.5; manganese, 0.3-1.2; titanium, 0.01-0.1; at least one element from the group: boron, 0.0001-0.05; carbon, 0.00001-0.008; aluminum, the balance. Invention provides the enhancement of technological ductility in hot deformation and welding capacity that allows to enhance labor output and to make articles of complex form. Invention can be used as structural material used in aviation, automobile and transport industries, among them, in welding structures. EFFECT: valuable properties of alloy. 4 cl, 2 tbl, 4 ex
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