Abstract
The purpose of this study is to obtain the optimum conditions for forming the high precision machined surface by diamond cutting. Therefore, the affections toward the formation of surface by the variation of the tool damage and the whisker orientation were clarified. The results obtained from this study are as follows : The states of tool damage of single crystal and sintered diamond tool and carbide tool had the abrasive type wear, and the tool wear was expressed as the degradation of surface. The most suitable tool for forming the precision surface was the sintered diamond tool with middle size of diamond grain because of the favourable effect of the falling-off of diamond grains. 0.2μm of surface roughness and 0.5μm of surface contour were obtained. And, by setting the whisker orientation parallel to machinedsurface, the whisker was easily fell off and the surface was degraded.
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