If your inspection requires a more custom approach, Versa’s Phased Array department will work closely with you to provide the best solution; focusing on reducing cost and ultimately the best quality possible.
Phased Array Ultrasonic Testing (PAUT)
The ability of Phased Array Ultrasonic Testing to steer and focus sound, allows the technician to size indications more accurately than with conventional ultrasonic testing techniques. Another advantage of Phased Array is the ability to pinpoint the location of an indication inside the specimen. Height, length, and depth readings from the surface offer the technician more clarity in characterizing the flaws. Unlike Radiographic Testing, Phased Array Ultrasonic Testing crews can work alongside other crafts which improved productivity on the worksite. Overall, Phased Array reduces cost for overnight work and scheduling conflicts between contractors.
Time of Flight Diffraction (TOFD)
Time of flight diffraction (TOFD) is another ultrasonic testing technique that was originally designed as an alternative to the ultrasonic testing shear wave technique. A primary application for TOFD is sizing cracks with much greater accuracy than other methods.
TOFD is typically used on parts where the geometry is congruent on both sides of the weld. For example, pipe-to-pipe welds or plate-to-plate welds where thickness is equal on either side of the weld, are a perfect situation to utilize time of flight diffraction. Lastly, it is important to note that thicker materials often receive multi-zone, focused applications to ensure proper inspection.
Both time of flight diffraction (TOFD) and phased array ultrasonic testing (PAUT) are methods with which our technicians and advanced NDT department are expertly trained in. We have handpicked the best and brightest in the industry to assemble a unique team of TOFD and PAUT technicians that have seen it all, and can handle any challenges you may have. There is a significant difference between certifications and experience. Our team has both!