HEAT ASSISTED FLUORESCENT PENETRANT INSPECTION (HAFPI) REVISITED

摘要

Prior to the demise of vapor degreasers, processors of critical engine parts, invariably, included a vapor degreaser. The parts were heated before penetrant application. While not realizing it, these processors practiced "heat assisted fluorescent penetrant inspection" (HAFPI). Perhaps, a return to HAFPI for critical rotating engine parts is a reasonable suggestion for improving FPI performance.