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In order to study the evolution laws of the temperature field, flow field, and macroscopic morphology of the molten pool during laser cladding process, this paper focuses on the changes in the morphology and flow field distribution of the molten pool temperature field caused by corresponding parameter changes during laser cladding process. First, a multi-physics field coupling model for laser cladding was established by combining light powder interaction, phase transition, heat transfer, and fluid dynamics, and the temperature and flow fields of the molten pool were analyzed. Then, the influence of process parameters such as laser power, scanning speed, and powder feeding rate on the temperature and flow field of the molten pool was studied. Finally, the influence of Marangoni convection induced by surface tension temperature coefficient on the macroscopic morphology, internal temperature field, and flow field distribution of the molten pool was investigated. ....
Glass structures are subject to high fire safety requirements. Two methods are employed in this work: experimental studies of small-sized and large-sized samples and simulations of heating glass structures. ....