THE DEVELOPMENT OF EXPERIMENTAL EQUIPMENT FOR A NEW MAGNETICPULSE PROCESSING METHOD WITH INDEPENDENT PULSE DURATION CONTROL

Abstract

Due to the fact that in the existing new magnetic-pulse treatment hardening technology little attention is paid to
such a parameter as the pulse duration, which in turn directly affects the energy change in the pulse and the energy
released in the inductor during the pulse passage, a fundamentally new electrical circuit development and the equipment
design magnetic-pulse treatment were developed. The manufactured magnetic-pulse unit MIU 20-21 with frequency
independent control and pulse duration, compared with existing units, is characterized by the absence of expensive
components in the design, which has made it possible to make the equipment design cheaper, and most importantly, the
treatment — method itself.

The conducted studies of the received signals characteristics have made it possible to establish that treatment
with a pulse duration of 0.1 to 5.0 s increase the energy of the magnetic field on the product from 5 to 100 kJ and more.
The study of the received signals oscillograms has shown that during treatment it is possible to obtain pulses bursts
containing from 5 to 1 000 pulses. It enables to process parts for a longer time and makes it possible to increase the
efficiency of the magnetic-pulse treatment process significantly to change the properties of steel products.

Fig. 8. Table 3. Ref.: 15 titles.