FINAL WELDING INSPECTION (VISUAL)


Type of defects/flaws:

Parent metal damage: Chipping of damage of parent metal due to removal of welded brackets/edges or by gas flame. These are to be spot-welded and grind smooth.

Cleaning of weld: Removal of slag and spatters to be done.

Surface crack: In the weld metal or in the parent metal adjacent to it.

Surface Flaws: Pin holes, undercut, UN fused welds, and excessive weld reinforcement.

Size/contours and finished under/oversize welds and convexity/concavity, uneven welds, unfilled crate, incompletely filled groove, unequal leg lengths, welding not done centrally.

Sixes of welds are to be checked by welding gauges. Acceptance criteria of weld size/surface flaws shall be as per drawing/technical specification or in absence, applicable standards viz. AWS 1.1/IS2825/ASME SEC-VIII and API 1104 etc.

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