Dye Penetrant Inspection (PT) (DPI)
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DISADVANTAGES
DISADVANTAGES
• With this method, only surface breaking defects can be detected.
• It is possible to inspect only materials with relatively nonporous surface.
• It is necessary to pre-clean the material since contaminants can mask defects.
• Metal smearing from machining, grinding, and grit or vapor blasting must be removed.
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