Finite Elementt Simulation and Analysis on Wear of Mechanical Graver for Diffraction Grating

Mechanical ruled diffraction grating is a kind of super-fine technology. During the process, the material distortion happens along with the geometry nonlinearity and material nonlinearity. In this paper, start from the dynamic assembly , measure the mechanical property by nano-indenter and scratching test , establish the finite element simulation model based on Deform software, analyze the main factors which affect the wear of linear graver, simulation analyze the wear of graver on flow velocity of material ,stress change and temperature change , predict and validate the area where the wear is most serious .It drew the conclusion that the wear was prior to appear on main and side blade, optimizing the edge radius and increasing the surface roughness is effective method to improve the anti-wear ability of tool.