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

Table 5

Response results of trials based on Box–Behnken design.

Run order	Std. order	Levels of independent factors				Responses
		Nanoclay (%)	Feed rate (mm/rev.)	Spindle speed (rpm)	Depth of cut (mm)	Surface roughness (Ra)	S/N ratio
1	17	9	0.2	24	2.0	2.75	51.21
2	11	3	0.2	32	1.5	2.38	52.47
3	8	6	0.2	16	2.0	2.18	53.23
4	20	3	0.3	24	1.5	2.85	50.90
5	18	9	0.3	24	1.5	2.98	50.52
6	9	6	0.3	24	2.0	2.64	51.57
7	16	6	0.1	24	1.0	1.72	55.29
8	5	3	0.2	24	2.0	2.42	52.32
9	25	9	0.1	24	1.5	2.34	52.62
10	24	6	0.3	24	1.0	2.42	52.32
11	14	9	0.2	16	1.5	2.56	51.84
12	10	6	0.3	16	1.5	2.51	52.01
13	6	6	0.1	16	1.5	1.86	54.61
14	12	6	0.2	32	2.0	2.34	52.62
15	1	6	0.2	32	1.0	2.12	53.47
16	22	9	0.2	24	1.0	2.38	52.47
17	21	3	0.2	16	1.5	2.13	53.43
18	2	6	0.2	16	1.0	2.08	53.64
19	7	6	0.1	32	1.5	1.93	54.29
20	19	9	0.2	32	1.5	2.62	51.63
21	13	6	0.1	24	2.0	1.96	54.15
22	15	3	0.2	24	1.0	2.18	53.23
23	4	3	0.1	24	1.5	1.98	54.07
24	23	6	0.2	24	1.5	2.25	52.96
25	3	6	0.3	32	1.5	2.58	51.77