切りくず処理に関する研究(第3報) : 切削抵抗と処理性に及ぼすチップブレーカの影響

概要

論文の詳細を見る
The present paper deals with the influence of the different type of chip breaker on the cutting force and chip controllability. A tool dynamometer which can measure separately the cutting force acted on the major cutting edge and the chip breaker is designed and constructed. The experiments in orthogonal and oblique cutting are carried out. The results obtained are as follows. (1) In orthogonal cutting, the decrease of the breaker width and the increase of wedge angle in the obstruction-type are improved the cutting mechanism by the decrease of the tool-chip contact length. In the groove-type, the decrease of the land width shows a similar tendency to the former, but the cutting forces are fairly different from the former because of the rake face controlled. (2) The chip curl radius is more fairly in accord with the change which appeared in the coefficient of friction on the major cutting edge than that on the chip breaker. (3) In oblique cutting, the effective rake angle and the chip width are increased according to the increase of the inclination angle. Under the influence of these factors, the region which minimizes the forces on the chip breaker is present.
公益社団法人精密工学会の論文
1988-08-05