Magneto-Mechanical Behavior Analysis using an Extended Jiles-Atherton Hysteresis Model for a Sheet Metal Blanking Application

Manufacturing processes affect the magnetic properties of the ferromagnetic components of electrical equipment. The optimization of the designed devices depends on two factors: the mechanical state of the material of a blanked part, especially near the cutting edge, and the magneto-mechanical behavior of the material used. In this paper we investigate the magnetic induction degradation of a blanked stator fabricated using fully processed, non-oriented Fe–(3 wt%)Si steel sheet. Owing to the geometric symmetry, we first simulated a half-stator teeth blanking using the Abaqus software. Subsequently, a magneto-mechanical extended Jiles–Atherton hysteresis model was used to determine the magnetic induction distribution on the blanked teeth stator. The numerical results show that the magnetic induction degradation can reach 25% upon applying moderate magnetic field, i.e., 1000 A/m, and 8% upon applying magnetic field close to the magnetic saturation, i.e., 3500 A/m. The depth of the affected region was approximately 1.25 mm before the material regained its initial magnetic state.