Manufacturing of high-strength laser welded joints of an industrial aluminum alloy of system Al-Cu-Li by means of post heat treatment

This work aims to study the effects of post heat treatment by quenching and artificial aging on the mechanical characteristics (strength, microhardness) and microstructure of laser welded joints of aluminum alloy V-1461 of the system Al-Cu-Li. Heat treatment regimes were identified in which the tensile strength, yield strength, and relative elongation of the welded specimens are respectively 92%; 91%, and 88% of the base alloy characteristics.