A automated ultrasonic inspection of titanium alloy gas turbine disc forgings using conical acoustic mirror

Krasnov I.S., M.A. Dalin, Zarodova A.A., Yakovleva S.I., Verhodanova A.A.
UDC
620.179
DOI
10.18577/2307-6046-2024-0-5-37-49
Article PDF (Russian) (722.16 KB)
How to cite
Krasnov I.S., M.A. Dalin, Zarodova A.A., Yakovleva S.I., Verhodanova A.A. A automated ultrasonic inspection of titanium alloy gas turbine disc forgings using conical acoustic mirror // Proceedings of VIAM. 2024. No. 5. DOI: 10.18577/2307-6046-2024-0-5-37-49. URL: https://test.viam.ru/en/journal/2024/5/4
Keywords
acoustic mirror, sensitivity, ultrasonic inspection, curved surface, titanium alloy, forgings
Abstract

Acoustic conical mirror for high sensitivity ultrasonic inspection of titanium alloy complex shape forging was offered and developed. Its geometrical parameters were calculated using mathematical modelling. The correction coefficients which are needed for compensation of the curved input surface influence were calculated. The high accuracy of the calculation was confirmed. The use of an acoustic mirror allowed increasing the sensitivity of inspection by more than 12 dB (4 times).

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