Parametric Optimization of Nd:YAG Laser Beam Machining Process Using Artificial Bee Colony Algorithm

Table 8

LBM process parameters with their levels.

Parameter	Levels
	−2	−1	0	1	2
Air pressure (𝑥1) (kg/cm^2)	0.3	0.8	1.3	1.8	2.3
Lamp current (𝑥2) (A)	13	16	19	22	25
Pulse frequency (𝑥3) (kHz)	1	2	3	4	5
Pulse width (𝑥4) (%)	2	4	6	8	10
Cutting speed (𝑥5) (rpm)	7	12	17	22	27