In February 2021, KARL DEUTSCH delivered a small yet special magnetic particle crack testing system for high-precision bearing rings from a Russian manufacturer. As is typical for a ring inspection, the combined, contactless and pole-free magnetisation by means of current and field flow via a laminated mandrel is used. As a special feature, the mandrel is positioned decentrally.
At customer‘s request, we have implemented a motorised rotation of the bearing rings in their system not only during the visual inspection, but also during the magnetisation cycle. The rotation is programmable to customer’s needs, depending on the part geometry and the inspection requirements. Parameter setting and recipe management for a wide range of parts is achieved conveniently and clearly via the MEMORY touch panel with a customised graphical user interface. Demagnetisation of the components takes place following visual inspection by means of an ESV coil.