This paper presents a numerical computation method and also an analysis procedure that can be used in order to solve the cvasistationary electromagnetic and thermal field for induction heating devices with moving parts. The analysis takes into account the relative movement between inductor and the heated part. The proposed method allows to use the same FEM discretization network for all steps of the analysis. Numerical simulation allows determining accurately the thermal regime of the induction heating process and the optimal parameters which offer maximum efficiency. Therefore the experiments’ number in designing process can be decreased and a better knowledge of the process can be obtained. The obtained results offer important information during the ferromagnetic hardening process, and also for the processes optimization and equipment design.1.

Keywords: Finite element method, Electromagnetic induction, Hardening.