Magnetic Particle Inspection (MPI)

Magnetic inspection is a non-destructive process for detecting surface and subsurface anomalies in ferromagnetic materials such as iron, cobalt, and similar alloys. Parts are magnetized directly, by passing current through the part, or indirectly, by inducing the field from an outside source. CMP uses a Gould-Bass Magne-Tech Model 3505 horizontal three-phase FWDC unit, Type II per MIL-M-6867, with 54" maximum length capacity, a 12" ID 5-turn coil, and infinitely adjustable amperage up to 6,000 A circular and 3,800 A longitudinal magnetization.