What are the technical requirements for stamping technology in the motor lamination manufacturing process?

There are two main mechanisms that make up a DC motor: the stator and the rotor. The annular iron core, together with the supporting windings and coils, form the rotor. The iron core rotates in the magnetic field to cause the coil to generate voltage, thereby generating eddy currents. Eddy current is a type of magnetic loss. When a DC motor loses power due to eddy current flow, it is called eddy current loss. Several factors influence the amount of power loss due to eddy current flow, including the thickness of the magnetic material, the frequency of the induced electromotive force, and the density of the magnetic flux. The resistance of the material to the flowing current affects how eddy currents form. For example, when the cross-sectional area of ​​a metal decreases, this causes eddy currents to decrease. Therefore, the material must be kept thinner to decrease the cross-sectional area to reduce the amount of eddy currents and losses.