研摩レス超平滑研削法の開発(第2報) : 各種材料への適用可能性と砥石周速度の影響の検討

概要

論文の詳細を見る
The ultra-smoothness grinding method based on the new concept, which can finish to almost the same smoothness formed by polishing method, in the previous research, is developed as the countermeasure answering the recently strong requirement about high efficiency production of high quality components. The surface roughness of cemented carbide tool formed by the method using the #140 diamond wheel is cleared to attain about 30nm (Rz) or 5nm (Ra). First of all, in the report, the ultra-smoothness grinding of various kinds of fine ceramics, a glass, a cemented carbide and a die steel is ascertained possible. Furthermore the influence of wheel speed on the surface roughness is investigated. The deterioration of surface roughness depends on the increase of micro-cracks in case of silicon carbide ceramic and of the grinding groove roughness in case of cemented carbide, respectively. The surface roughness becomes worse for higher wheel speed. At wheel speed of 75m/s, however, the surface roughness of silicon carbide ceramic becomes about 80nm (Rz).
社団法人精密工学会の論文
2008-09-05