Accurate Weld Inspection with Time of Flight Diffraction (TOFD)
Time of Flight Diffraction (TOFD) is an advanced ultrasonic testing method known for its exceptional flaw detection and sizing capabilities. Unlike conventional UT, TOFD uses diffracted sound waves to detect defects, offering precise measurements regardless of bevel angle or flaw orientation. It enables rapid and reliable inspection of welds, making it ideal for critical piping systems, nozzles, and pressure vessels. TOFD can be used as a standalone technique or combined with methods like PAUT for enhanced accuracy. Its ability to provide accurate flaw sizing also makes it suitable for long-term defect monitoring. This technique is widely adopted in industries where safety and reliability are paramount. TOFD ensures efficient inspections while minimizing downtime and improving decision-making in maintenance planning.


of Experience
Applications
TOFD is commonly used for inspecting welds in pipelines, nozzles, and pressure vessels. It is effective in detecting and sizing flaws in structural joints and supports in-service inspections and long-term flaw monitoring.