Rolling principle During the cutting process of the workpiece, the tool tip will leave a step-like trace on the surface. The rolling head will support the yield point of the material during the sliding process on the surface of the workpiece under the action of the spring force, and make the surface of the material plastic. Deformation, forcing the Z high point of the knife mark to flow into the Z low point, thereby obtaining a smooth and smooth. The material is hardened due to plastic deformation during the rolling process, thereby improving the fatigue strength of the workpiece surface. To achieve the Z-best squeezing effect, the surface finish of the previous cutting process of the workpiece should be about Ra1.6-3.2μm.
The principle of ultrasonic rolling is to use the vibration generated by the high frequency of tens of thousands of times per second of ultrasonic to realize multi-dimensional rolling processing on the basis of rolling; it has the characteristics of high frequency, large energy and strong focus, and uses tens of thousands of times per second. The second frequency injects energy into the workpiece, so that the metal surface layer can achieve the effect of nano-mirror processing.