Tymoshenko A. Highly effective laser-foundry process for obtaining a wide range of composite materials

The dissertation is devoted to the development of a new hybrid method of continuous production of cast dispersed-reinforced composite materials, which combines the advantages of using concentrated energy sources with highly efficient traditional foundry technologies. The method is based on the formation of a suspension in mixing reactors under the condition of continuous supply of melt, which is the basis of the composite material, and gas-powder flow during simultaneous treatment of particles and melt by laser radiation. Subsequently, the resulting suspension melt is subjected to controlled curing. The work covers a wide range of issues related to the study of the influence of gas-dynamic, hydrodynamic and thermophysical processes on the formation of a suspension during the interaction of laser radiation with particles introduced into a metal melt. The expediency of using laser radiation in obtaining composite material by various technological methods of mixing the melt and reinforcing particles, which provides their heating in the gas laser flow, intensification of mixing processes in the volume of the melt and allows to obtain a high-quality relationship between reinforcing elements and molded composite material.