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The oft-quoted adage is that the shop should always be prepared for an audit. While this saying is true, the average quality manager knows that consistent readiness for such scrutiny calls for continued best practices to be complied with.
Learn about the Method D liquid penetrant inspection nondestructive testing method, including basic steps for using a refractometer, preparing an emulsifier concentration chart, and determining hydrophilic emulsifier concentration.
Of the four available methods to remove surface penetrant during the fluorescent penetrant inspection process, the hydrophilic post emulsifiable penetrant process (Method D) is used when tighter control of the penetrant process is desired.
Nowhere is the need for material integrity more obvious than in medical devices that are implanted into human beings. A failed device inside an aircraft or power plant may, under some circumstances, cause a problem.
As a quality manager, it’s your worst nightmare. One of your best customers comes for a visit and brings a box of cracked parts that came from your plant. He wants to know how it happened, and how you are going to ensure it won’t happen again.
If necessity is the mother of invention, then nondestructive testing (NDT) would be among her favorite progeny, at least with the design engineers and manufacturing sect.
Although Liquid Penetrant Inspection is recommended for the detection of all types of surface fl aws, the selection and use of the penetrant is going to depend on a number of factors.