Curved Surface Correction (CSC) for Long Seam Weld Inspection

Phased Array inspection of curved components can be challenging, especially for seam welds in small diameter or heavy wall pipes as inspection software tools and accessories are generally designed for flat surfaces.

Furthermore, interpretation of the sectorial scan can be difficult in such circumstances, due to the convex surface geometries and in many cases tools such as visualised weld overlays are not relevant. The result is often erroneous and imprecise flaw location and sizing.

This application note highlights a new approach for inspecting seam welds. It uses the PA-CSC software package of Veo3. Once the region or regions of interest in the weld are defined by the inspector, accurate focusing in said region will be performed automatically. Fast S-Scans can then be recorded with the help of a proper scanner. Moreover, corrected A-Scan views are produced and supported by a live 3D scan plan the technician can perform accurate identification, interpretation, measurement and flaw sizing.

---

 Download File (pdf, 476.7KB)