Research On Design Method Of Long-life Diamond Ruling Tool Of Diffraction Grating

The technology of grating manufacture belongs to ultra-precision machining technology. Domestic has not hold the ability of making high-precision and large-area of diffraction grating yet. So it is hard to satisfy the requirement of spectral instrument industry and military application. To achieve the aim of machining high-precision and large-area of diffraction grating, besides the high-precision of automatic control system and super-stable environment, high-accuracy and long-life ruling tool is also quite crucial.This paper focused on the design method of diamond ruling tool of diffraction grating. Combine the measured aluminum film properties, establishes the finite element model of the mechanically ruled grating.Study the influence factors for the wearing of the chisel-edge ruling tool based on the abrasion model gave by E.Usui. Forecasting the ruling tool wear from three parts:material flow rate, stress and temperature. Search the ruling tool most serious wearing area and directionIn term of the anisotropy properties of diamond and the period bond chain (PBC) theory, a calculate method is built to evaluate the extent of hard lapping in different orientations and different crystal planes in diamond.The design orientation of the diamond ruling tool is made using the diamond anisotropy properties and the ruling tool wearing. Achieve the aim of high-precision, long-life diamond ruling tool.