[Retracted] Surface Feature Prediction Modeling and Parameter Optimization for Turning TC17 Titanium Alloy

Table 3

Chosen parameters and levels.

Code	Experimental factors	Units	Levels
			1	2	3
A	Cutting speed	m/min	30	60	90
B	Feed rate	mm/r	0.06	0.12	0.18
C	Cutting depth	mm	0.1	0.2	0.3