Time of Flight Diffraction (TOFD) Training Course

Course Overview

Learning Objectives

• Analyze the fundamental principles of Time of Flight Diffraction and its role in advanced non-destructive testing of welds.
• Explain ultrasonic wave behavior and diffraction mechanisms associated with the extremities of internal discontinuities.
• Evaluate TOFD application requirements based on material type, component thickness, weld geometry, and inspection objectives.
• Apply appropriate probe selection and configuration principles to achieve the required inspection coverage.
• Perform equipment calibration and system verification before commencing TOFD inspection activities.
• Evaluate the quality and reliability of acquired TOFD data and identify factors that may affect inspection results.
• Analyze TOFD signals and recorded data to identify relevant discontinuity indications.
• Estimate discontinuity location and key dimensions using available TOFD inspection data.
• Evaluate inspection results against approved inspection procedures and applicable acceptance requirements.
• Prepare clear and technically structured TOFD inspection reports containing examination conditions, findings, and relevant indications.
• Apply systematic methods for reviewing, recording, storing, and traceably managing TOFD inspection data.
• Develop a practical TOFD examination plan for weld inspection within an integrated non-destructive testing program.

Who Should Attend

Learning Outcomes

• Explain the fundamental physical and technical principles of Time of Flight Diffraction.
• Distinguish TOFD from conventional ultrasonic testing approaches used for weld inspection.
• Identify suitable applications for TOFD in welded components and industrial assets.
• Select appropriate probe arrangements based on weld geometry, component thickness, and required inspection coverage.
• Perform equipment calibration and verify system readiness before an examination.
• Establish appropriate inspection zones and scanning coverage for a defined weld configuration.
• Interpret diffracted signals associated with the extremities of relevant discontinuities.
• Analyze TOFD images and recorded inspection data systematically.
• Determine discontinuity location and estimate key dimensions based on available examination data.
• Assess data quality and recognize unwanted signals, noise, or indications associated with component geometry and inspection conditions.
• Prepare structured TOFD inspection reports and document examination findings accurately.
• Integrate TOFD results with other non-destructive testing methods and broader asset integrity programs.

Course Outline