Aluminum crack repair.ppt - LOCK-N-STITCH
Aluminum crack RepairWithoutWeldingTopics crack detection/inspection Metal stitching Threaded hole repairCrack Detection Visual Pressure testing Dye-penetrantVisual Practiced by many as the only way of finding cracks. You wouldn t inspect cast iron this way. Inconclusive. You cannot find the ends of the Dye-Penetrant InspectionPressure Testing Only shows cracks that leak. Helps determine the extent of the repair needed. Must be done following any Cleaner Penetrant DeveloperCleaner Do not use to clean the test area. Do not spray directly on the test area. Spray only on a dry shop towel or other clean Use small amount. Can be applied with a brush. Messy, difficult to remove. You must wipe as much as possible off before applying the Penetrant With a BrushDeveloper Test area must be wiped clean of penetrant by applying cleaner to the cloth before applying developer.
Pressure Testing • Only shows cracks that leak. • Helps determine the extent of the repair needed. • Must be done following any repair.
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