ENGINEERING FEATURES OF COMBINED FINISHING AND HARDENING TREATMENT OF GTE BLADES

The paper gives modern approaches to advancing the technologies of finishing and hardening treatment of gas turbine engine (GTE) blades in order to improve their operational characteristics. The blades are one of the most stressed GTE components, their quality directly affects the efficiency, reliability and durability of the engine. The relevance of the paper is due to the high requirements made to the operational characteristics of modern aviation gas turbine engines, which implementation is directly related to the improvement of the technology of finishing and hardening treatment of turbine blades. The basic methods of synthesis of engineering processes and their adaptation to ensure a function-oriented approach are considered. The main attention is paid to the methods of synthesis of engineering processes of finishing and strengthening equipment, including the development of functionally oriented technological support. Particular variations of implementing general synthesis methods are given, such as the construction of a combined polisher and a device for zonal surface hardening. An algorithm for functionally oriented technological support synthesis is described, which makes it possible to adapt its application in typical engineering processes. Algorithms and schematic diagrams for the synthesis of engineering support are given, as well as the results of an experimental analysis of increasing the hardness and quality of treated surfaces. The results of the study demonstrate the possibility of integrating the proposed technologies into existing production processes and their potential for further development.