tool failure

Therefore, the prediction of tool wear and failure is very urgent.

因此, 预测刀具的磨损和破损的产生,显得十分紧迫.

The mean time between failure ( MTBF) is 449 hours, and the mean time to repair ( MTTR) is 22. 1 hours. ln its subsystems, the MTBF of tool post is smallest and that of electric system is biggest;

平均无故障时间MTBF为449h.平均修复时间MTTR为22.1h.各子系统中，方刀架的可靠性最好，电器系统的可靠性最差；

this paper analyses the influence of excentric shaft connection on force case of drill tool, and discusses the causes of drill tool failure.

文中分析了使用偏轴接头对钻具各部分受力情况的影响及导致钻具失效的原因。

Carbide cutter Failure Analysis of Cemented Carbide Forming Tool in Grinding Process

硬质合金成型刀具刃磨加工失效分析

To address this type of failure, continuous real time monitoring has been developed for the AIT tool.

对于这种类型的故障，已开发了用于阵列感应成象测井仪的连续实时监测。

By the action of high rotary speed, excentric shaft connection intensifies the fatigue failure of tool.

为了达到较好的防斜目的,必须增大钻进时钻头的转速,在高转速的作用下, 偏轴接头加剧了钻具先期疲劳失效.

in case of interrupted cutting, breakage of the flank face may be the tool failure criterion.

本实验所用的断续条件下，刀具的失效判据为崩刃。