Effect of Equal Channel Angular Pressing on the Surface Roughness of Solid State Recycled Aluminum Alloy 6061 Chips

Table 5

ANOVA results for .

Source	DF	Adj SS	Adj MS	-value	value
Model	10	23.0431	2.3043	475.18	0
Linear	6	18.0698	3.0116	621.05	0
A	1	0.0761	0.0761	15.7	0
B	1	0.1812	0.1812	37.37	0
C	1	17.436	17.436	3595.57	0
D	3	0.3765	0.1255	25.88	0
Square	3	4.9376	1.6459	339.4	0
	1	0.1172	0.1172	24.17	0
	1	0.1492	0.1492	30.77	0
	1	4.8654	4.8654	1003.32	0
2-way interaction	1	0.0356	0.0356	7.35	0.009
	1	0.0356	0.0356	7.35	0.009
Error	49	0.2376	0.0048
Lack-of-fit	41	0.2373	0.0058	169.84	0
Pure error	8	0.0003	0
Total	59	23.2807