For today’s welding engineer, inspector, or QA manager, possessing the right PDFs from this era is not about nostalgia—it is about maintaining compliance, understanding legacy systems, and building a foundation for the next generation of autonomous weld inspection.
Use filetype:pdf in Google along with the year (e.g., "Phased Array" weld inspection 2021 filetype:pdf ).
The Digital Shift: Advancements in Welding Inspection Technology (2020–2021)
The transition from analog film-based radiography to digital systems was already underway, but the 2020–2021 period saw the maturation of . welding inspection technology 2020 pdf 2021
FMC and TFM transitioned from specialized lab techniques to commercial field deployment between 2020 and 2021. FMC captures the raw acoustic waveforms from every transmitter-receiver pair in an array. TFM processes this data to generate high-resolution, uniform-focus images of the target area.
The launch of the and its companion workbook, the WIT-W:2020 Workbook , updated how the industry handles quality control.
The 2020–2021 timeframe was highly transformative for field operations, shifting welding inspection from paper-heavy workflows to digitized, automated environments. The Rise of Advanced UT (PAUT and TOFD) For today’s welding engineer, inspector, or QA manager,
Automated gating and signal-filtering software reduced false-alarm rates caused by complex weld geometries or geometric reflections. 4. Digital Workflows and Cloud Quality Management
PAUT became the gold standard for weld inspection, surpassing traditional radiography. The 2020–2021 period saw updated code cases allowing PAUT to replace RT in many applications, including pressure vessels and structural steel. Key documents from this era emphasized:
Before 2020, many welding inspection standards were print-only or required a CD-ROM. The pandemic forced organizations like AWS, ASME, and ISO to release genuine PDF editions (with digital rights management, but searchable and portable). This is why the keyword “welding inspection technology 2020 pdf 2021” exploded in search volumes. FMC and TFM transitioned from specialized lab techniques
Sourcing exact documents from the 2020–2021 window requires an understanding of how regulatory bodies publish and update their inspection technology syllabi. AWS WIT-T:2020 (Welding Inspection Technology)
With social distancing protocols, automated crawlers for tank and pipeline welding inspections gained traction. The typical whitepapers discussed:
Active thermography emerged as a complementary tool, with specific PDF guides demonstrating how to document results for ISO 17635 and ISO 3834, and extend workflows to EN 1090 and ASME requirements. An autonomous deep-computing framework presented in 2021 analyzed raw videos from infrared systems to predict weld nugget shape and size in resistance spot welding with unprecedented accuracy and speed, using deep neural networks.
Air-coupled ultrasound represented an even more radical departure from contact methods. A 2021 study in China Welding discussed the possibility of evaluating laser welding seam quality using Lamb wave modes in an air-coupled configuration. By eliminating the need for a couplant (gel or water), air-coupled ultrasound enables inspection of moisture-sensitive materials and high-temperature surfaces immediately after welding.