Practical Limits of Acoustic Shadow Checks for Precision Shaft Blanks
https://welding-examination-hub.rivetgarden.com/posts/ultrasonic-weld-testing-in-rail-vehicle-frames-a-step-by-step-guide
Practical Limits of Acoustic Shadow Checks for Precision Shaft Blanks Shaft blanks are long round parts that may rotate during testing. Fixtures, edges, and geometry can block the beam and leave regions untested