Virtual Section Meeting: Mastering PAUT for Tube-to-Tubesheet Weld Inspections
Webinar
Learn how PAUT enables full-volume inspection of tube-to-tubesheet welds, overcoming limitations of traditional NDT methods to detect critical flaws and improve fabrication quality.
Credit Info
- Contact Hours: 1
- IACET CEUs: N/A
- Valid for ASNT Level III recertification: Yes
Original air date: 23 April 2026
Course Overview
Tube-to-tubesheet welds present unique inspection challenges where traditional nondestructive testing (NDT) methods such as visual testing (VT) and liquid penetrant testing (PT) may fall short. These limitations can leave critical flaws, such as micro-nonfusion, undetected during fabrication.
This webinar explores how ultrasonic phased array testing (PAUT), combined with innovative technique development, enables full-volume inspection of these complex welds. Attendees will gain insight into how customized PAUT approaches can improve flaw detection, enhance quality assurance, and address real-world inspection challenges.
Through practical examples, this session will highlight the importance of adapting NDT methods to specific applications and the role of procedure qualification in ensuring reliable and effective inspection outcomes.
Upon Completion, Learners Will Be Able To:
- Understand the limitations of traditional NDT methods for tube-to-tubesheet weld inspections
- Explain how PAUT enables full-volume inspection and improved flaw detection
- Recognize common challenges, including detection of micro-nonfusion defects
- Identify key considerations in developing and qualifying PAUT techniques
- Apply insights to improve inspection strategies in fabrication environments
Meet the Speaker
David Bajula
David Bajula, CEng, a professional with over four decades of experience in nondestructive testing (NDT), has been at the forefront of global advancements in for the nuclear power, aerospace, petrochemical, and refining industries. His journey began with an associate’s degree NDT program at Hutchinson Vo-Tech in Minnesota. Having worked with companies such as Magnaflux, General Electric, and ABB/Combustion Engineering he finished his time at Acuren as the GM of Advanced NDT Services after 23 years of service and currently serves as VP – NDE Solutions & Innovations for PROtect, based in Houston, Texas. A Chartered Engineer by the Engineering Council through BINDT, Bajula also holds ASNT NDT Level III certifications across 10 methods, multiple API certifications and an AWS CWI. He is an ASNT Fellow with numerous other ASNT awards and currently serves as chair of the Certification Management Committee and the ANSI TAG for ISO TC135 committee. Bajula has provided expert witness testimony in legal cases involving NDT, and he continues to work in the field while also offering consultancy services as a recognized NDT subject matter expert in legal cases.
Questions? Contact us at education@asnt.org