1. Principle of pole piece disk cutting Referring to the metal plate disc slitting process, we first analyze the basic principles of pole piece disc slitting. First, when the plate comes into contact with the Ab point of the upper and lower blades, the plate will be elastically deformed by the pressure of the upper and lower blades, and due to the existence of the moment, the plate will bend, and a shear stress will appear inside the material near the gap. main stress. As the blade points A and b rotate to posit