Magnetic particle tests are vital for incoming raw materials that checks for quality and can eliminate the defective ones at earlier stages of manufacturing. Most common steels can be subjected to magnetic particle inspection using electromagnetic yokes, prods, stationery type
MPI equipments with circular and longitudinal magnetization testing techniques.
MPI tests can eliminate the materials with surface and subsurface flaws. Depth of detecting varies based on magnetic permeability, testing techniques, current used, part geometry, size and other factors. Ideally
Magnetic particle inspection-MPI testing techniques can detect flaws up to 0.6" in depth. This NDT method can detect flaws on coated or painted engineering components. Common specifications on
magnetic particle testing allows conductive coatings up to 0.1 mm. However maximum thickness of coatings have to be checked with customer specifications or
NDT procedures.
NDT laboratory at
Trinity NDT in Bangalore, India is facilitated with
Stationery type MPI equipments with Contact headshot, central conductor, coil shot techniques that meets the
Aerospace NDT specification for
magnetic particle testing - ASTM E 1444. Portable
MPI testing facilities include electromagnetic yokes, Prod type MPI equipments, short electrical coils for field general
magnetic particle testing applications.
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