“Hot” water jetting through pipes in nuclear plants can cause damage to pipe walls and nozzles. Accurate methods are required to quantify the amount of material lost to determine if repairs or replacement is required. (Figure 1).
A resin cast was typically made of the void, then measured to calculate the volume loss. This method is subject to human error, and shrinkage of the cast can cause this method to be inaccurate.
- Samples were laser scanned with the Konica-Minolta Range 7 scanner (accuracy of .0015”).
- Raw data is triangulated to generate a polygonal mesh (Figure 2).
- Volume loss calculations and solid modeling performed in Rapidform XOR.
- Compared actual (scan) vs. nominal (model) in Rapidform XOV then generated PDF reports.
- Accurate and Repeatable results.
- Detailed reports documenting cross section and whole deviation of the sample nozzles. (Figure 3)
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Figure 1 – Original Part
Figure 2 – Scanned Data
Figure 3 – Sectional Analysis