Research Article
Chatter Prediction for Variable Pitch and Variable Helix Milling
Table 1
System parameters.
| Parameter items | Parameter values |
| Number of teeth | | Tool diameter [mm] | | Radial immersion ratio | | Helix angle [degree] | | Uniform pitch [degree] | | Variable pitch [degree] | | Modal masses [kg] | , | Damping ratio | , | Natural frequencies [Hz] | , | Normal cutting coefficients [Mpa] | | Tangential cutting coefficients [Mpa] | | Milling mode | Down-milling |
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