Prediction of Surface Roughness and Optimization of Cutting Parameters of Stainless Steel Turning Based on RSM

Table 6

Experimental verification of model reliability.

Serial number	(m/min)	(mm)	(mm/r)	Roughness of test (μm)	Predicted roughness (μm)	Relative error/%
1	75	0.09	0.3	2.836	2.675	6%
2	85	0.11	0.4	2.605	2.756	5.5%
3	92	0.12	0.2	2.121	2.247	5.6%
4	96	0.15	0.3	2.544	2.380	6.9%
5	113	0.1	0.6	2.748	2.605	5.5%
6	124	0.13	0.5	2.454	2.599	5.6%
7	143	0.14	0.6	2.38	2.557	6.9%
8	117	0.13	0.4	2.409	2.53	4.8%
9	112	0.16	0.2	1.89	1.92	3%
10	128	0.12	0.5	2.41	2.596	7 %