A Hybrid Chatter Detection Method Based on WPD, SSA, and SVM-PSO

Figure 7

The amplitude spectrum of vibration signals in the three cutting states under cutting conditions: spindle speed 7500 r/min, axial depth of cut 0.4 mm, radial depth of cut 0.1 mm, and feed rate 0.1 mm/rev. (a) Stable state. (b) Transition state. (c) Chatter state.

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