Cavitation repairs at Gavins Point Dam
Mike Schnetzer in his supplied-air welding hood. Repairs are not unlike the process to repair a cavity in a tooth. The porous material is cut and removed by a blast of air through a process called air carbon arcing. A stainless steel filler that is harder and corrosion resistant is welded into place and then ground to create a smooth surface repairing the cavitated area.

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Tags: Gavins point
Photo by: MAJ Erik Karstensen |  VIRIN: 140225-A-CE999-411.JPG