Welding Inspection Technology 2020 Pdf May 2026
Date: December 2020 Subject: Technological Advancements, Standards, and Market Trends in Welding Inspection
Reference: AWS A3.0:2020 Standard Welding Terms
| Type | Visual Identification (2020 Tools: Borescope, 10x Loupe) | Acceptance (D1.1:2020) |
| :--- | :--- | :--- |
| Crack | Linear dark line; sharp tips.
Hot crack (centerline).
Cold crack (HAZ). | Zero tolerance. Full removal required. |
| Porosity | Round or elongated voids.
Cluster (4+ in 1”). | Max diameter: 1/16” (1.6mm) for thin wall.
Cluster reject if > 2% of surface. |
| Undercut | Groove in base metal adjacent to toe of weld. | Depth ≤ 1/32” (0.8mm) for cyclic loads;
≤ 1/16” (1.6mm) static. |
| Incomplete Fusion | Flat, unbonded interface between weld/base. | Reject (crack initiation point). |
| Spatter | Small droplets on base metal. | Permitted unless corrosion resistant coating required. |
| Overlap | Weld metal rolled over without fusion. | Reject (stress riser). | welding inspection technology 2020 pdf
While film-based radiography is still widely used, 2020 saw a major shift toward Digital Detector Arrays (DDA).
While not a volumetric inspection, 2020 standards recognized that cap height and undercut are predictors of fatigue failure. Laser scanners produced 3D surface maps, with pass/fail criteria automatically inserted into a welding inspection technology summary PDF. 2. According to AWS D1.1:2020
1. A 1" thick steel plate weld shows a linear indication 2" long at the root. UT confirms a 70° shear wave reflection at 80% FSH. The most likely defect is:
2. According to AWS D1.1:2020, what is the maximum acceptable depth of undercut for a statically loaded bridge girder? Date: December 2020 Subject: Technological Advancements
3. What is the correct UV-A intensity requirement for fluorescent MT in a dark room per ASTM E3022?
"Remote Inspection" became a buzzword. Technicians on-site operated basic scanning hardware, while Level III inspectors reviewed the data remotely from different countries via secure cloud platforms. This ensured project continuity despite lockdowns.
