2020. Vol.23. No. 4, pp. 28-31
Grinding Burns Testing — New NDT Method? Do You Need Qualified Specialists for This?
In industrial practice, etching, Barkhausen-Rausch methods and eddy current are used to detect burns. To reliably perform inspection according to any of the methods, it is necessary that the flaw detection experts have sufficient knowledge and skills. This is particularly relevant for the multi-stage chemical etching process.
In 2015, at the request of Turkish partners, IMQ developed the course "Inspection of grinding burns using chemical etching" in accordance with ISO 14104 and AMS 2649. Since then, more than 70 participants from several European countries have successfully completed this two-day course.
In cooperation with DGZfP Ausbildung und Training GmbH, IMQ has developed a new course for the training of flaw detectors in the burns inspection during grinding. In addition to the etching method, the course included the eddy current method and the Barkhausen method, as well as liquid penetrant testing and magnetic powder testing. The content of the course, practical exercises and elements of the final exam in theory and practice are presented.
Keywords: grinding burns, etching, Barkhausen method, penetrant testing, magnetic powder testing, personnel training.