Drilling tool wear dataset

This dataset has accelerometer data collected from a drilling process for four tools as they are run from new condition to a point when they are blunt. The file naming convention used is: The words 'DrillingToolWearDataset_' is common to all data files. The terms 'Txx_' following these terms indicate the tool number with xx taking the values 01,02,03 or 04, indicating tools 1-4. The terms 'Rxx' following this indicates the run number and will have values 01 or 02 indicating Run 1 or Run 2. The tool starts as a new tool at the beginning of run 1. The drilling process is stopped at the end of run 1 and the tool is inspected ted visually for wear. Then the same tool is used to continue the drilling process till it is completely blunt at the end of run 2. Other specifications: Accelerometer: Dytran 3-axis accelerometer (Model: 3273A2). Data Acquisition System: National Instruments NI cDAQ 9174 Sampling rate: 1000 samples/second Drilling Speed: 490 RPM, Feed: 0.285 mm/rev

本数据集采集了四支刀具从全新状态直至磨损钝化全过程的钻孔过程加速度计数据。所有数据文件均共用前缀`DrillingToolWearDataset_`；其后缀`Txx_`用于标识刀具编号，xx可取01、02、03、04，分别对应1至4号刀具；再后续的`Rxx`用于标识运行次数，xx可取01或02，分别对应第1次、第2次运行。刀具于第1次运行启动时为全新状态，第1次运行结束后暂停钻孔工序，对刀具进行目视磨损检测；随后沿用该刀具继续钻孔作业，直至第2次运行结束时刀具完全钝化。其余技术规格如下：加速度计采用Dytran三轴加速度计（型号：3273A2）；数据采集系统为National Instruments NI cDAQ 9174；采样率为1000样本/秒；钻孔转速为490 RPM，进给量为0.285 mm/rev。