Statistical Modeling and Optimization of Laser Cladding Stellite 6/WC Composite Coating

Table 9

Model prediction and validation.

	LP (W)	(mm/min)	CSD (mm)	WCC (%)	Porosity area (μm^2)	Flatness (mm)	Hardness (HV 0.2)	Desirability
Prediction	700	300	0.7	15	36319	0.254	498.2	1.000	Selected
Experiment	700	300	0.7	15	37332	0.268	471.0
	700	300	0.7	15	35282	0.250	455.0
	700	300	0.7	15	39375	0.238	487.8
Average error					4.7%	4.5%	5.4%