Thermal Errors Classification Compensation without Sensor for CNC Machine Tools

Table 2

Spindle parameters.

Parameters	Units	Value
Spindle diameter	D(mm)	105
Spindle bore	DK(mm)	75
Spindle length	L(mm)	260
Spindle density	ρ(kg/m^2)	7.6×10^3
specific heat capacity	c(J/(kg ⋅ k))	460
Linear expansion coefficient	αt(1/k)	1×
Thermal conductivity	λ(W/(m ⋅ k))	31.2