Numerical simulation of the influence of aluminum intermediate layer on TA2/5083 explosive welding
In order to study the effect of adding intermediate layers on TA2/5083 explosion welding,1060 aluminum intermediate layers with 0.3 mm thickness and 0.5 mm thickness were selected respectively,and a three-dimensional numerical model was established by ANSYS/LS-DYNA software combined with ALE algorithm,and the welding process of adding 0.3 mm and 0.5 mm thickness 1060 aluminum intermediate layers was simulated,respectively,compared with direct explosive welding TA 2 and 5083 composite plates.The simulation results show that selecting the appropriate thickness of 1060 aluminum intermediate layer can effectively reduce the collision pressure of the substrate and make the explosive welding process more stable.Combined with the established explosive welding window,the addition of an intermediate layer can greatly expand the weldable window,reduce the collision velocity,and the simulation results are closer to the theoretical collision velocity,so that the composite plate can be combined with the substrate at a better flight velocity;The welding quality of the 0.3 mm thickness intermediate layer composite plate is higher than that of 0.5 mm thickness intermediate layer and is higher than that of no intermediate layer,the simulation and experiment are better,and the addition of the intermediate layer 1060 with appropriate thickness can greatly improve the composite quality of TA 2/5083.
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