Calculation and Estimation of Surface Roughness and Energy Consumption in Milling of 6061 Alloy

Table 7

ANOVA results.

Source	Degree of freedom (DF)	Sum of squares (SS)	Mean square (MS)	F ratio	P	PCR (%)
Ra
V	3	9.653	3.2177	2.92	0.139	36.18
F	3	3.806	1.2685	1.15	0.414	14.26
DOC	3	2.568	0.8560	0.78	0.555	9.62
Cm	1	5.154	5.1540	4.68	0.083	19.32
Error	5	5.503	1.1005			20.62
Total	15	26.683				100.00
Rz
V	3	414.11	138.04	2.50	0.174	39.07
F	3	60.53	20.18	0.36	0.782	5.71
DOC	3	96.42	32.14	0.58	0.653	9.10
Cm	1	212.46	212.46	3.84	0.107	20.04
Error	5	276.50	55.30			26.08
Total	15	1060.02				100.00
Pcutting S
V	3	6715363	2238454	13.38	0.008	70.20
F	3	43408	14469	0.09	0.964	0.45
DOC	3	1946747	648916	3.88	0.089	20.35
Cm	1	23664	23664	0.14	0.722	0.25
Error	5	836803	167361			8.75
Total	15	9565984				100.00
Pcutting X
V	3	55966	18655	8.79	0.019	26.28
F	3	57429		9.02	0.018	26.97
DOC	3	76099	25366	11.96	0.010	35.73
Cm	1	12860	12860	6.06	0.057	6.04
Error	5	10608	2122			4.98
Total	15	212961				100.00
SEC S
V	3	18308	6103	3.72	0.096	37.34
F	3	9433	3144	1.92	0.245	19.24
DOC	3	10606	3535	2.15	0.212	21.63
Cm	1	2474	2474	1.51	0.274	5.05
Error	5	8205	1641			16.74
Total	15	49026				100.00
SEC X
V	3	117.182	39.0605	27.07	0.002	51.40
F	3	34.395	11.4651	7.95	0.024	15.09
DOC	3	69.097	23.0323	15.96	0.005	30.31
Cm	1	0.087	0.087	0.0868	0.816	0.04
Error	5	7.214	1.4429			3.16
Total	15	227.975				100.00