Induction Heating during Magnetic Pulse Processing of Metals: Perspective Schemes and their Application

Abstract

The paper, based on a review of modern literature, highlights the features of the processes of magnetic pulse processing of metals in traditional schemes of technological processes of modern industrial production. New directions of their development are noted, which provide for the transformation of the natural forces of repulsion of the metal of the processed object into the forces of magnetic-pulse attraction while reducing the operating frequencies of the existing fields. The physics of Lenz-Joule heat dissipation is described, the result of which is the induction heating of conductors by Foucault currents in an external electromagnetic field. Examples of the use of induction heating in modern industry are given. Schemes of practical realizationof preinduction heating are offered, which allow to use both autonomous devices for eddy current excitation and stationary connection for the same purpose of additional power source. The possibility of increasing efficiency by increasing the ductility of the metal when heated is noted, as well as its possible limitations associated with increasing the active resistance of metals during the growth of Lenz-Joule heat dissipation. It is offered to use the received results at a choice of design decisions for elements of new schemes of the equipment of magnetic pulse processing of metals.