Study on the influence of relative vibration between tool and workpiece on plastic side flow

Abstract

The mutual vibration between the tool and the workpiece not only affects the surface roughness value, but also the vibration energy has a very important influence on the mechanical properties and plastic deformation of the material. Based on the interaction mechanism between the tool and the workpiece surface, the three-dimensional plastic deformation in the third deformation zone is studied. The analytical relationship among vibration and plastic side flow is explored, and the method of restraining plastic side flow is put forward. The change mechanism of flow velocity of materials under the influence of vibration is analyzed. Through analysis, vibration makes the material soften, which leads to more obvious plastic side flow phenomenon. Reducing vibration can effectively inhibit plastic side flow phenomenon. Finally, the influence of relative vibration between tool and workpiece on the formation process of surface cracks of workpiece is studied, and the number of cracks per unit area can be well reduced by reducing the vibration. The research content of this paper can provide theoretical basis for improving the surface quality of ultra-precision turning of spherical/aspherical surfaces, and is of great significance to the processing of high-quality spherical/aspherical mirrors.