Parametric Optimization of Laser Additive Manufacturing of Inconel 625 Using Taguchi Method and Grey Relational Analysis

Table 10

Comparison between initial parameters and optimal parametric combinations.

	Initial parameters	Optimal parametric combinations
		Prediction	Experiment
Setting level	LP1SS1PFR1OR1	LP2SS3PFR1OR1	LP2SS2PFR3OR1
Surface roughness (δ/mm)	0.157	0.102	0.110
Width error (we/mm)	0.036	0.041	0.058
Grey relational grade	0.789		0.903