When using the cylinder, the rolling method is adopted. This is a pressure finishing process, which uses the cold plastic characteristics of the metal at normal temperature, and uses the rolling tool to apply a certain pressure to the surface of the workpiece, so that the surface metal of the workpiece has plastic flow. , It is filled into the original low-concave trough, and the surface roughness of the workpiece is reduced. So what are the benefits of this approach? 1. After rolling, its surface does not have sharp tiny cutting edges, and it is well combined with sealing materials and has a good sealing effect. This is particularly important in the hydraulic industry. Prolonged kinematic friction will not damage the seals or seals. 2. Improve the quality of fit, reduce wear and prolong the service life of parts, but the processing cost of parts is reduced. Rolling is a non-cutting plastic processing method. Due to the plastic deformation of the surface metal that is rolled, the surface structure is cold hardened and the grains become fine, forming a dense fibrous shape, and forming a residual stress layer. The hardness and strength are improved. This improves the wear resistance, corrosion resistance and fit of the surface of the workpiece.
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