Influence of Thermal Treatment on the Destruction of a Weld of an Al-Cu-Li Aircraft Alloy at Different Temperatures
E. V. Karpov1, A. G. Malikov2, A. M. Orishich2, B. D. Annin1
1Lavrentyev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
2Khristianovich Institute of Theoretical and Applied Mechanics, Novosibirsk, 630090, Russia
Keywords: лазерная сварка, алюминиево-литиевый сплав, термообработка, локализация пластических деформаций, влияние температуры, laser welding, aluminum-lithium alloy, thermal treatment, plastic strain localization, temperature effect
Abstract
Results of an experimental study of how temperature affects the destruction of laser welds of an Al-Cu-Li aircraft aluminum alloy are presented. A comparison is made of the deformation and fracture of welds in the initial state and after two-stage thermal treatment. It is shown that the mechanical characteristics of welded samples have values close to those of the initial alloy.
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