of rolling processing of cylinder tubes : It is a kind of pressure finishing processing, which uses the cold plasticity characteristics of metal at room temperature and uses rolling tools to exert a certain pressure on the surface of the workpiece to cause plastic flow of the metal on the surface of the workpiece and fill it in. into the original remaining low concave troughs, and the surface roughness of the workpiece is reduced. Due to the plastic deformation of the rolled surface metal, the surface structure is cold hardened and the grains become finer, forming a dense fiber shape and a residual stress layer. The hardness and strength are increased, thereby improving the wear resistance and corrosion resistance of the workpiece surface. sex and cooperation. Rolling is a non-cutting plastic processing method.
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