ファインセラミックスのホーニング加工 : ダイヤモンド砥粒のじん性が切削性能に及ぼす影響

概要

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Influence on honing performance is investigated about grain's toughness and operating conditions such as honing speed, crosshatch angle and honing fluid. Workpieces are three types of ceramics sintered under atmospheric pressure, that is, silicon nitride Si_8N_4,silicon carbide SiC and alumina Al_2O_3. Moreover, some discussions are had to confirm how effective the honing operation is for machining of ceramics. The results are as follows. Influence of grain's toughness on its cutting ability is a little for Al_2O_3 with good machinability. But, for SiC and Si_8N_4 with poor machinability, diamond grains having high toughness should be used. In order to restrain the wear of cutting grains, the honing speed and the stone pressure should be decreased. The large crosshatch angle makes it possible to obtain high productivity, because the cutting edges collide against cutting tracks with a large angle. The characteristic and the temperature of the honing fluid are important factors to use diamond sticks effectively.
社団法人精密工学会の論文
1984-09-05