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