AE信号による断続切削時の初期欠損の検出(第1報)
二次元断続切削時のAE計数率と振幅分布について
1986 年 52 巻 7 号 p. 1167-1173
詳細
1986 年 52 巻 7 号 p. 1167-1173
In the usual detecting method of initial fracture of tool edge by AE signal, the burst AE signal over a threshold level has been employed for detecting tool fracture in metal cutting. However, it is uneasy to pick up only the AE signal caused by tool fractures among those which are generated from the region near cutting edge. In this study, the orthogonal interrupted cutting has been carried out and some AE parameters ; AE count rate, accumulative count and amplitude distribution ; have been measured in order to obtain the relations between initial fracture of tool edge and AE parameters and to confirm the relations between initial fracture of tool edge and disengage angle. As the result of experiment, it has found out to detectable the initial fracturing state of tool edge by AE parameters. In addition, it is able to keep away the misdetection by the shock of interrupted cutting or chip in this measuring method.
