Liquid or dye penetrant testing is a non-destructive testing method that uses capillary forces to locate surface-breaking flaws such as cracks, laps and porosity. The flaw must reach the surface in order to be tested, but liquid penetrant testing offers an inexpensive solution for testing large areas quickly. #milling #gaugehow #metalwork #metalcraft #machine #toolmaking #millingmachine #cnc #mechanical #engineering #mechanicalengineering #millingcutter #instagood #tech | GaugeHow

Part 1 Crack detection using dye penetrant. Because our cylinder head is aluminum we can't use the the first method that comes to mind for crack detection, Magnafluxing. Why you ask? Well I can't seem to find my aluminum magnet. Anyhoo, Crack detection with the dye penetrant is an easy 3 step process that can be done on any type of material, ferous or non. Step 1: on a clean cylinder head (or whatever you're crack detecting) apply a coating of the penetrating dye and let it sit for about 3 minut

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Dye Penetrant Inspection