Optimization of Machining Parameters of Natural/Glass Fiber with Nanoclay Polymer Composite Using Response Surface Methodology

Table 6

ANOVA analysis surface roughness.

Resource	SS	DOE	MS	F value	P value prob > F	Status
Model	2.39	14	0.1709	46.75	<0.0001	Significant
X1-nanoclay	0.2380	1	0.2380	65.12	<0.0001
X2-feed rate	1.46	1	1.46	400.28	<0.0001
X3-spindle speed	0.0352	1	0.0352	9.63	0.0112
X4-depth of cut	0.1610	1	0.1610	44.05	<0.0001
X1X2	0.0132	1	0.0132	3.62	0.0863
X1X3	0.0090	1	0.0090	2.47	0.1472
X1X4	0.0042	1	0.0042	1.16	0.3076
X2X3	0.0000	1	0.0000	0.0000	1.0000
X2X4	0.0001	1	0.0001	0.0274	0.8719
X3X4	0.0036	1	0.0036	0.9850	0.3444
X1^2	0.1649	1	0.1649	45.12	<0.0001
X2^2	0.0008	1	0.0008	0.2146	0.6531
X3^2	0.0053	1	0.0053	1.45	0.2562
X4^2	0.0088	1	0.0088	2.41	0.1517
Residual	0.0366	10	0.0037
Cor. total	2.43	24