Table 4 Constants and exponents for model equations of component cutting forces.
Material condition | Cutting forces component | Material constant, Ci | Exponent, xi | Exponent, yi | Exponent, zi | Determination coefficient, R2 | Pearson linear correlation, rxy |
|---|---|---|---|---|---|---|---|
Initial state | Fc | 1538.01 | 0.79 | 0.81 | − 0.10 | 1.00 | 1.00 |
Ff | 174.84 | 0.78 | 0.24 | − 0.24 | 0.94 | 0.97 | |
Fp | 4.35 | − 1.87 | − 0.74 | − 0.80 | 0.81 | 0.90 | |
After HE | Fc | 1579.01 | 0.91 | 0.78 | − 0.11 | 0.99 | 1.00 |
Ff | 341.07 | 0.71 | 0.44 | − 0.29 | 0.94 | 0.97 | |
Fp | 3.33 | − 1.35 | − 0.20 | − 0.23 | 0.59 | 0.77 |
