ABSTRACT

This chapter focuses on the electromagnetic and heat transfer phenomena, process simulations, and some other related aspects. Electromagnetic properties of materials is quite a broad expression that refers to a number of engineering characteristics including electrical resistivity, relative magnetic permeability, saturation flux density, coercive force, hysteresis loss, initial permeability, permittivity, magnetic susceptibility, magnetic dipole moment, and many others. Most metallic materials are known to be electrical conductors. Relative magnetic permeability has a marked effect on process parameters selection affecting electrical phenomena, including the skin effect, electromagnetic edge, and end effect, as well as proximity and ring effects. Thermal conductivity k designates the rate at which heat travels across a thermally conductive workpiece. The finite difference method (FDM) has been used extensively for solving both heat transfer and electromagnetic problems. The finite element method (FEM) is a group of numerical modeling techniques devoted to obtaining an approximate solution for different technical problems, including those encountered in induction heating (IH).