Abstract.A numerical analysis of fusion welding of steel-and aluminum-based foam materials is carried out. The schemes of the structured and stochastic pore distribution are considered. The research results were used to conduct the experiments which confirmed the reliability of the numerical calculations.
The work investigates the specificity of the thermal processes occurring during formation of a molten pool in curvilinear specimens. The process is exemplified by welding of small-diameter pipes. A numerical 3D-model of the interaction of a moving heating source and thick-walled pipes of various curvature was built. The material, diameter and thickness of pipes were selected as per active standards. The numerical calculations were performed. The practical experiment was performed using argon tungsten-arc welding. The results establish the effect of the welded part geometry on the dynamics of thermal processes in the molten pool.
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