Course Overview
Time-of-flight diffraction (TOFD) is a sensitive and accurate ultrasonic method used for weld inspection and defect sizing. It uses diffracted signals from flaw tips to estimate defect depth and height with high reliability, making it valuable for critical fabrication and in-service assessments.
Training Course Objective
- Understand TOFD principles, diffracted signals, and crack-tip response.
- Learn the historical development and practical importance of tip diffraction methods.
- Study how TOFD improves flaw sizing accuracy for critical weld evaluations.
- Perform setup, calibration, scanning, data review, and reporting for TOFD applications.
- Use TOFD data to support dependable inspection decisions with reduced failure risk.
Key Topics Covered
- TOFD theory and wave behavior
- Probe arrangement and PCS selection
- Lateral wave, backwall, and diffracted signal interpretation
- Weld inspection planning and scanning practice
- Defect depth and height estimation
- Data interpretation, limitations, and reporting
Course Details
| Duration | 45 hours |
| Track | Advanced UT specialization |
| Best For | Weld inspection and precise flaw sizing |
| Format | Theory + hands-on interpretation |
