The effect of punching on electrical machine
Résumé
This work enlightens the impact of punching on a specific stator performances. Two specimens type are withdrawn from a M330A35 punched lamination sheet. One type represents a closed magnetic circuit while the other represents two parts. Magnetic measurements are performed on both types. Measurements are compared with those performed on specimens cut by WEDM. The specific purpose of this paper is to investigate the impact of punching in presence of air gap which exist in electrical machines between rotor and stator. Therefore a dedicated device is developed in order to control airgap perfectly and FEM simulations are also presented to make results more accurate.
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