Milling 3d Surface Topography Theoretical Modeling And Simulation Analysis

The surface quality is a very important aspect for a mechanical part besides machining precision. The surface quality includes the state of external layer, surface roughness, geometry error, three-dimensional shape, and so on. It is impossible that the surface gained by any machining is perfectly slippery. There is some microcosmic error of geometrical shape on the surface.In the process of a machine being used, the working performance of the part will be gradually ruined; so as to it cannot be used finally. The primary reason includes wear, cauterization and weariness wreck that is occurred on the surface of the part or begins from the surface of the part. The surface quality will influence working capability of the part such as wearablility, copulate precision, weariness intensity, anti-cauterization, rigidity of tangency and airproof capability. People bring forward more and more desires for the surface quality along with the development of the technology. The strict desire about geometrical shape of part surface is put forward besides good physics and mechanics capability.The paper brings forward a modeling method that can describe three-dimensional shape of milling part surface. The model of three-dimensional shape is established by the way of dividing the part surface into segmentation. The model is simulated by MATLAB, and the microcosmic shape gained by simulation is analyzed. The results will supervise the choice of machining parameter so as to ensure rational texture of turning part surface and gain good surface quality.