THERMOMECHANICAL TREATMENT PROCESS FOR HEAT TREATABLE ALUMINIUM ALLOYS

摘要

Heat treatable aluminum alloys of increased mechanical strength are produced by submitting the alloy to a solution and quenching treatment followed by a combination of plastic deformations and precipitation hardening, including a first aging treatment at a temperature not higher than 200 DEG C, a plastic deformation and then a further aging at a temperature not lower than the first, the combination for deformations and hardenings being a cycle repeatable on the alloy.