What Can Go Wrong With Curved Surface Alignment in Large-Diameter Flanges-

https://ultrasonic-tank-methods.rivertonbrief.com/posts/how-weld-quality-planning-supports-safer-crane-structures

What Can Go Wrong With Curved Surface Alignment in Large-Diameter Flanges? Large flanges have flat faces, bores, and thick rim sections. Curved parts change the direction of the sound beam at each scan position