Future works

In stability lobe diagram, this research could only compute stability under straight cutting. The effect on turn can be added to consideration. However, it will increase the complexity and computing time, which has already been time-consuming in this research.

Therefore, how to improve computing efficiency is also a problem to be solved.

In impact test, the frequency response of hammer decreases in high frequency. It causes the error of stability lobe diagram if the mode of spindle is upper than 1 kHz. In addition, the spindle modes may change with spindle speed. Operation modal analysis, which identifies modal properties during operating condition, may have an opportunity to perform better.

In model training, data collection is also serious time-consuming. Although stable data can collect by cutting under the bound of stability lobe diagram, transition data and slight chatter data are hard to find if stability lobe diagram has errors. The research attempt can develop an automatic data collecting method in future.

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