ドリル損耗検出に関する研究(第1報) : 監視システムの開発

概要

論文の詳細を見る
In-process detection of drill wear and breakage is one of the most important technical problems in machining center. Especially, detection of drill breakage is indispensable to minimize the damage from it, because it happens accidentally and its prediction is difficult. In this paper, the experimental investigation is made to clarify the relationship between cutting forces (torque, thrust) in drilling and to develope a monitoring system. The main results obtained are as follows : (1) Thrust increases proportionally to the increase in corner wear land up to about 0.5 mm. (2) Breakage of drill makes the level of torque and thrust zero instantaneously. (3) The effect of depth of hole and through hole on cutting forces is negligible. By making use of these results, a method for detection of drill wear and breakage is proposed, and the monitoring system using a fixed type tool dynamometer is developed. It is confirmed that the monitoring system is reliable.
公益社団法人精密工学会の論文
1984-06-05