Rolling Cylinder  Introduction

The rolling cylinder is processed by rolling, and due to the residual compressive stress left on the surface layer, it helps to close small cracks on the surface and hinders the propagation of erosion. Thereby improving the surface corrosion resistance and delaying the generation or expansion of fatigue cracks, thus enhancing the fatigue strength of the rolling cylinder. Through rolling forming, a cold work hardening layer is formed on the rolling surface, reducing the elastic and plastic deformation of the contact surface of the grinding pair, thereby improving the wear resistance of the inner wall of the rolling cylinder and avoiding burns caused by grinding. After rolling, the reduction of surface roughness value can improve the fitting properties.
Rolling processing principle: It is a pressure finishing process that utilizes the cold plasticity characteristics of metals at room temperature. Rolling tools are used to apply a certain amount of pressure to the surface of the workpiece, causing plastic flow of the metal on the surface of the workpiece and filling it into the original residual low concave valleys, thereby reducing the roughness value of the workpiece surface. Due to the plastic deformation of the surface metal being rolled, the surface structure undergoes cold hardening and grain refinement, forming a dense fibrous structure and residual stress layer. This increases the hardness and strength, thereby improving the wear resistance, corrosion resistance, and fit of the workpiece surface. Rolling is a non cutting plastic machining method.