As the most critical component of air intake end of the engine,the integral blade disk requires high sensitivity in ultrasonic testing,and the thickness of the testing section is relatively large.However,TC17 material has a significant attenuation of ultrasonic waves,resulting in a low signal-to-noise ratio for testing,which affects the detection of defects.In this paper,the detection technology,probe selection,and scanning scheme are optimized through theoretical analysis and experimental verification,and an effective detection process scheme that can improve the signal-to-noise ratio of detection is found to avoid the influence of noise during the detection process,thereby the detection of defects can be guaranteed.
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