In the aviation industry, the minor diameter bar of titanium alloy use very extensively, such as the vane of Press spirit machine of the aviation delivers motive. It will Serious influence the usability and security of vane. So the disquisition on ultrasonic inspection of a minor diameter bar of titanium alloy will provide emollient support for improving the level of producing the vane. In the field of ultrasonic inspection, there are some problem in the inspection of the bar of titanium alloy. For example, the big curvature, the intricate Incidence of acoustic beam and the overfull clutter and so on, how to constitute a rational technique of inspection is becoming a problem of needing solve immediately.
We validate the technique through inspecting the coupon which make of titanium alloy, the coupon have some normative artificial defect. Through the experimentation, we affirm the technique is doable. The transducer which we choose through theoretic have the better effect, it have better sensitivity and Signal-to-Noise. The Swept distance of beam and angle which calculated through expressions is right. Adopting the method of immersion focusing. To the inspection of the minor diameter bar of titanium alloy, adopting the method of immersion focusing very appropriate.
Keywords: Technique of ultrasonic, The minor diameter bar of titanium alloy , Focus in water