DEVELOPMENT AND STUDY OF EFFECTIVENESS OF THERMOPLASTIC HARDENING PROCESS OF SURFACES WHICH ARE DIFFICULT OF ACCESS IN LARGE-SIZED PARTS

There the purposes are to study by theory and by experiment the local thermoplastic hardening of disks of Gas-Turbine Engine (GTE), to develop the practical recommendations for putting process into operation. The comprehensive study of local thermoplastic hardening of attachment holes of GTE disks with use of heating by radio frequency currents has been realized for the first time. The design method to determine the residual stresses in the thermoplastic hardening with regard to the manufacturing heredity has been developed. The stressed state of surface layer of parts in operation has been optimized on the basis of developed theoretically-experimental determination method of total actual stresses. The optimum modes of thermoplastic hardening have been determined including the manufacturing heredity. The scientifically-substantiated practical recommendations to put the method of thermoplastic hardening of holes into operation have been developedAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio