Taguchi Robust Design for Optimizing Surface Roughness of Turned AISI 1045 Steel Considering the Tool Nose Radius and Coolant as Noise Factors

Table 5

ANOVA results for control and noise factors.

Source	DF	Adj. SS	Adj. MS	value	value
Model	31	28.7059	0.926	23.67	0
Linear	8	24.6965	3.08706	78.92	0
S	2	8.2392	4.11961	105.32	0
DOC	2	1.4196	0.70979	18.15	0
FR	2	7.6466	3.82328	97.74	0
NR	1	0.0015	0.00151	0.04	0.845
Coolant	1	7.3896	7.38962	188.91	0
2-way interactions	17	3.1721	0.18659	4.77	0
S ∗ DOC	4	0.9537	0.23843	6.1	0
S ∗ NR	2	0.4967	0.24834	6.35	0.003
S ∗ coolant	2	0.5287	0.26436	6.76	0.002
DOC ∗ FR	4	0.4059	0.10147	2.59	0.043
DOC ∗ NR	2	0.2202	0.11011	2.81	0.066
FR ∗ NR	2	0.1385	0.06925	1.77	0.177
NR ∗ coolant	1	0.4284	0.42836	10.95	0.001
3-way interactions	6	0.8373	0.13955	3.57	0.004
S ∗ NR ∗ coolant	2	0.3999	0.19993	5.11	0.008
DOC ∗ FR ∗ NR	4	0.4374	0.10936	2.8	0.032
Error	76	2.9728	0.03912
Total	107	31.6787
R-sq	R-sq (adj.)			R-sq (pred.)
90.62%	86.79%			81.05%