ドリルのふれまわり振動 : 第3報,下穴がある場合の振動の解析

概要

論文の詳細を見る
The whirling vibration of the drill when beginning the drilling of a workpiece with a pilot hole, is theoretically examined. It becomes clear that the whirling is a regenerative chatter vibration which is caused by the regenerative effect at the major cutting edge and the frictional force occurring due to the interference between the flank surface of the major cutting edge and the workpiece surface. As the amplitude and the vibration speed of the drill are restricted by the characteristic of the frictional force, remarkable vibration waves are observed. It is also found that the frequency of the whirling vibration is considerably lower than the natural frequency of the system, and that the odd number polygon is produced by the regenerative effect.
一般社団法人日本機械学会の論文
1986-09-25