Inspection techniques for a cleaning quality evaluation as applies to cooled turbine blades throughout their manufacturing and repair

Аuthors

Ivkin E. I.^*, Sirotkin I. A.^*

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

*e-mail: k205@mai.ru

Abstract

A serious problem emerges throughout manufacturing and repair of aviation gas-turbine engines. The problem relates to a cleaning of cooling channels within turbine blades from various contamination substances. Many techniques have been developed to perform high-quality cleaning of inner cavities in machine parts. However besides of the cleaning we need examination techniques suitable for large-scale manufacturing environment. This subject is analyzed in the paper in regard to gas-turbine engine production.

Keywords:

turbine blade, cooling channels of turbine blades, cleaning, contamination, X-ray inspection technique, infrared imaging inspection technique