Research Article
Thermal Errors Classification Compensation without Sensor for CNC Machine Tools
Table 4
Correction coefficients of the thermal deformation model.
| Velocity (r/min) | Coefficient | P1 | P2 | β |
| 30 | 1.43 | -0.79 | 0.065 | 60 | 1.37 | -0.87 | 0.063 | 90 | 1.33 | -0.54 | 0.059 | 120 | 1.34 | -0.72 | 0.052 | 150 | 1.29 | -0.62 | 0.049 | 180 | 1.26 | -0.31 | 0.046 | 210 | 1.2 | 0.15 | 0.044 | 240 | 1.13 | 0.24 | 0.041 | 260 | 1.09 | -0.42 | 0.04 | 300 | 1.05 | 0.47 | 0.038 |
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