Articles Tagged with ''magnetic particle inspection''

Aircraft wheels are put through aggressive and cyclic NDT inspection protocol and the wheel’s potential for failure has led manufacturers to require various repetitive inspections at regular intervals.

Magnetic particle inspection ensures that parts are free of fatigue stress, structural defects, or stress cracks. The technology, which can be applied to existing, in-use parts, or newly manufactured parts and components that require integrity testing, has been around for more than a century.

Toward the end of this decade, our industry will realize a full century since the inception of the magnetic particle inspection method.

Nondestructive Testing (NDT) is the name given to the processes designed to verify the integrity of a structure in such a way that the performance of that component is not impaired by the test.

This article will list and explain why each magnetic particle inspection accessory is needed to validate the system performance of an inspection.

The conventional measurement of mechanical hardness, for instance, in steel, is usually carried out using the same principle. A mechanical indenter is forced towards the surface of the workpiece, penetrating it and leaving an imprint. 

It is true that magnetic particle testing (MT) is one of the oldest NDT methods, and over the years has proven itself to be not only reliable, but cost effective, when it is applied properly with qualified personnel. 

Each day, facilities across the globe turn to nondestructive testing (NDT) to verify the reliability of parts or materials without causing damage. One of the most popular of these methods is magnetic particle inspection (MPI)—a form of NDT that uses magnetism to detect surface and near-surface defects, cracks, seams or stress points in ferromagnetic materials before parts and materials are placed into service.