ダイヤモンド砥石とセラミックスの接触剛性について

概要

論文の詳細を見る
The difference between a setting depth of cut and a real cutting depth, that is, the residual stock removal is caused by the elastic deformation between the workpiece and the grinding wheel. The total stiffness between the workpiece and the grinding wheel is determined by the contact stiffness between them and the stiffness of the grinding machine system, which consists of the workpiece system and the wheel system. Since in the case of the grinding of advanced ceramics the ratio of the normal grinding force to the tangential grinding force is much larger than that of steel, in order to achieve precision grinding it is a significant problem to examine the contact stiffness between the diamond wheel and advanced ceramics. In this paper the contact stiffness between the diamond wheel and four kinds of advanced ceramics is examined. Obtained results are summarized as follows: (1) The contact stiffness between the diamond wheel and advanced ceramics is smaller than that between the alundum grit wheel and a steel. Also, the rate of increase of the contact stiffness as the static applied load increases is much smaller than that between the alundum grit wheel and a steel. (2) The longer the arc of contact becomes, the larger the contact stiffness becomes. Advanced ceramics having a larger fracture toughness value show the larger contact stiffness.
沼津工業高等専門学校の論文
1990-01-30