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Technological Heredity in Serial Production of Gas Turbine Engines
Serial production of gas turbine engines involves large-scale output, extensive equipment fleets, and diverse maintenance personnel, making it heavily reliant on strict technological discipline. High production volumes increase the likelihood of engines with varying resistance to operational loads due to inevitable manufacturing errors. In this context, design quality and reliability are ensured primarily through technological measures, with technological heredity serving as a foundational factor for structural reliability in serial production of aviation components.
Stable quality parameters for parts, as specified in design documentation, must be maintained across the entire production program. This can only be guaranteed by advanced technological processes. Negative phenomena most detrimental to engine part reliability are primarily linked to blade and abrasive machining processes. While production-technological measures—such as optimizing methods, modes, regulation, and quality control—can mitigate these effects, complete elimination remains impossible.
Therefore, improving quality and reliability must focus on two main directions: reducing the volume of machining (also lowering labor intensity) by adopting progressive blank production processes, and enhancing strength characteristics through finishing hardening methods like surface plastic deformation, chemical-thermal treatment, finishing-levelling techniques, and physical coating application.