Analysis Of The Processing Principle Of Rolling Knife

Analysis of the processing principle of rolling knife

The rolling knife can use the plastic deformation of the metal at normal temperature to smooth out the micro unevenness on the surface of the workpiece so as to change the surface structure, mechanical characteristics, shape and size. Therefore, this method can simultaneously achieve two purposes of finishing and strengthening, which cannot be achieved by grinding and turning.

No matter which metal processing tool is used for processing, there will always be fine convex and concave tool marks on the surface of the part, and there will be staggered peaks and valleys. The principle of rolling processing: it is a kind of pressure finishing. The characteristics of cold plasticity at normal temperature, using a rolling tool to apply a certain pressure on the surface of the workpiece, cause the surface metal of the workpiece to plastically flow, and fill it into the original residual low valleys, so that the surface roughness of the workpiece decreases.

Due to the plastic deformation of the rolled surface metal, 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, thereby improving the wear resistance and corrosion resistance of the workpiece surface Sexuality and cooperation.