6.3 Probe Positions with Respect to Weld Geometry

Weld inspection procedures usually require testing from two or more different locations on the test piece to cover the entire volume of the weld and to project sound waves in the directions required for generating reflections from common flaws. In all cases the probe must be scanned back and forth so as to project the sound beam through the entire volume of the weld. Specific procedures for a given test must always be established by the inspector, based on part geometry and test requirements.

Common Test Practices