Artificial Neural Network on Tool Condition Monitoring in Hard Turning of AISI4140 Steel Using Carbide Tool

Table 2

Levels of process parameters.

Input parameters	Levels
	1	2	3
(m/min)	70	120	170
f (mm/rev)	0.08	0.1	0.12
ap (mm)	0.3	0.45	0.6
L (mm)	200	400	600