Table 4.

L₈ Normalizing value for hardness and surface roughness.

Sr. No.	Orientation (Degree)	Laser Power (Watt)	Scanning Speed (mm/s)	Hardness before (HRB)	Surface Roughness (µm)	MPCI
				Normalization Value
1	0	115	600	0.142857	0.833333	0.44
2	90	115	650	0.285714	1	0.5
3	0	122	600	0.428571	0.666667	0.5
4	90	122	650	0.571429	0.5	0.5
5	90	129	600	0	0.166667	0.17
6	0	129	650	0.285714	0.166667	0.31
7	90	136	600	0.714286	0	0.344
8	0	136	650	1	0.166667	0.57