短繊維強化アルミニウムの切削仕上面品位

概要

論文の詳細を見る
In recent years, FRM reinforced by SiC whisker or other fibre have been increasingly used for precision parts demanding high strength in aircraft and automobile industries. In order to meet the requirements on reliability and corrosion-resistance of the parts, it is necessary to get fine surface in cutting process. In this study, the mechanism of generation of finished surface in cutting FRM reinforced by short fibre was investigated, and the factors which influence the surface integrity were also discussed. As the result, it was made clear that the surface finish in cutting FRM reinforced by short fibre is mainly determined by the behaviour of fibre and can be classified into three patterns. That is, (1) the surface with exposed fracture surface of fibres cut by cutting edge; (2) the surface having a lot of fine holes from which fibres were pulled up; (3) smooth surface with an outer layer in which fibres were pushed down by cutting edge and were arranged in cutting direction. Moreover, these patterns are mainly dominated by kind of fibre, the behaviour of friction between FRM and cutting tool and the sharpness of cutting edge.
公益社団法人精密工学会の論文
1991-01-05