Rolling and rolling is a method of cold pressing and proprietary technology, which belongs to chipless processing. Rolling and rolling is the use of metal to produce plastic deformation to achieve the purpose of changing the surface properties of the workpiece and obtaining the size and shape of the workpiece. Rolling and rolling of the outer surface generally can use a variety of corresponding rolling tools to force the surface to be rolled on an ordinary bedroom driveway at room temperature, so that the metal surface of the industrial part is plastically deformed, and the metal surface has been corrected. The microscopic geometry reduces the roughness value of the machined surface, and the wear resistance, corrosion resistance and fatigue strength of the workpiece are high. The roll forming process mainly relies on the plastic movement of the material to process various complex-shaped shafts, valve cores, special fasteners and other products.
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