The rolling cutter can use the plastic deformation of metal at room temperature to flatten the microscopic unevenness of the surface of the workpiece to achieve the purpose of changing the surface structure, mechanical characteristics, shape and size. No matter what kind of metal processing tool is used for processing, the total surface of the part There will be fine uneven knife marks and crisscross peaks and valleys. The rolling knife is a mechanical non-cutting plastic processing method that uses the principle of mechanical extrusion to obtain a mirror-like metal surface.
It is a kind of pressure finishing process, which takes advantage of the cold plastic characteristics of the metal at room temperature. It uses a rolling tool to apply a certain pressure on the surface of the workpiece to make the surface metal of the workpiece produce plastic flow and fill in the original residual depression. In the trough, 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 crystal grains become finer, forming a dense fiber shape, and forming a residual stress layer, which improves the hardness and strength, thereby improving the wear resistance and resistance of the workpiece surface Corrosion and compatibility. Rolling is a non-cutting plastic processing method, so this method can achieve both smoothing and strengthening purposes at the same time, which cannot be achieved by grinding and turning.