Abstract
Fundamentals of the roll forming technology for disks of gas-turbine engines under super-plasticity conditions are stated. Because of deep underlying reasons of materials science, the technology provides a high process efficiency, equipment universality, the possibility of obtaining workpiece blanks with a high accuracy approaching that of the final part, and the development of structural states corresponding to the optimum complex of operational properties of parts [1, 2]. It is shown that a substantial role in roll-forming technology is played by superplastic deformation conditions, which, in contrast to the simple isothermal deformation, allow us to obtain in disks, either the homogeneous structure and isotropic properties, or the regulated gradient structure corresponding to actual temperature-force conditions of the operation of different parts of gas-turbine rotor disks.
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