Visual inspection is not a post-weld-only activity. To prevent costly repairs, inspection must occur before, during, and after welding. Phase 1: Before Welding (Fit-Up Inspection) Verify material specifications and welder qualifications.
The ultimate goal of a visual inspection is to categorize and record surface irregularities. These irregularities are evaluated against acceptance standards like (which defines quality levels B, C, and D for imperfections). Defect Type Description Visual Identification Method Surface Cracks Linear ruptures caused by localized stress or shrinkage. bs en 970 visual inspectionpdf best
[ Pre-Weld Phase ] --------> [ In-Process Phase ] --------> [ Post-Weld Phase ] Joint Fit-Up & Cleanliness Inter-Run Cleaning & Profile, Dimensions, (Clause 6 compliance) Bead Profiles (Clause 7) & Defects (Clause 8) The Three Stages of Inspection Visual inspection is not a post-weld-only activity
Inspect the root run for full penetration and absence of burn-through. The ultimate goal of a visual inspection is
Disclaimer: This article is for informational purposes. Always consult the latest authorized standard document from the British Standards Institution (BSI) for compliance.
