Scientists from Perm Polytechnic University (PNRPU), together with engineers from "ODK-Perm Engines", have proposed new approaches to processing gas turbine aircraft engine blades, which will help increase their reliability and durability.
Specialists conducted a series of experiments to find out how different surface preparation methods affect the quality of the protective coating. They compared three processing methods: hydroabrasive, sandblasting, and polishing.
The best results were shown by the hydroabrasive method, which allows achieving a uniform layer depth within 30-60 μm and avoiding surface defects.
The researchers also determined the optimal pressure in the spray gun for applying the aluminum coating — 2.0 atmospheres. This value ensures the most efficient distribution of the protective layer, which ultimately increases the durability of the parts. The developed recommendations have already been tested at ODK-Perm Engines.
Earlier, www1.ru reported that the first Tu-214 series aircraft in three years received a unique livery in Minsk.
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