Abstract
The technique for simulating surface formation of a diamond grinding wheel is developed to evaluate typical characteristics of the surface topography. The simulation contains four procedures: simulating the grains with the long and short diameters according to those actual distributions in a mesh size, distributing the grains into the bond area of the wheel based on random or uniform manner, truing and dressing the wheel surface to make cutting edges under a grain protrusion ratio as the criterion of grain remaining or falling off, and evaluating characteristic values of the surface topography like density of cutting edges. The results showed that the surface topography simulated by the random grain distribution resembled the actual one when maximum grain protrusion ratio was 30-35% in resinoid bonded wheel and 35-40% in metal bonded wheel. The density of cutting edges, the length of cutting edges per unit area and the extent of maldistribution of grain were determined on the wheels of grain sizes from coarse to fine.
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