Optimization of Process Parameters for Laser Cutting Process of Stainless Steel 304: A Comparative Analysis and Estimation with Taguchi Method and Response Surface Methodology

Table 2

Box–behnken design (RSM) and response.

RunOrder	Power (A)	Nitrogen pressure (B)	Frequency (C)	Cutting speed (D)	Kt	Kb	DIFF|Kb − Kt|	Y|Kb − 6| + |6 − Kt|
	Watt	MPa	Hz	m/min	mm	mm	mm	mm
1	1950	25	20000	4	5.95	5.99	0.04	0.06
2	1950	20	20000	5.5	6.1	6.2	0.1	0.3
3	1950	20	19000	2.5	6.03	6.03	0	0.06
4	1950	25	19000	4	5.97	5.97	0	0.06
5	1950	20	19500	4	6.04	6.05	0.01	0.09
6	2000	20	19500	2.5	5.98	6.02	0.04	0.04
7	1900	25	19500	4	6.03	6.07	0.04	0.1
8	1900	15	19500	4	6.02	6.03	0.01	0.05
9	1950	15	19500	2.5	5.99	6	0.01	0.01
10	1900	20	19000	4	5.96	6.08	0.12	0.12
11	2000	20	20000	4	5.97	6.02	0.05	0.05
12	1950	25	19500	5.5	6.2	6.3	0.1	0.5
13	1900	20	19500	2.5	5.99	6.01	0.02	0.02
14	1950	20	20000	2.5	5.99	6.02	0.03	0.03
15	1950	15	19500	5.5	6	6.1	0.1	0.1
16	1950	20	19500	4	6	6.02	0.02	0.02
17	2000	15	19500	4	5.96	5.98	0.02	0.06
18	1900	20	19500	5.5	6.3	6.3	0	0.6
19	1950	15	19000	4	6	6.1	0.1	0.1
20	1950	20	19000	5.5	6.15	6.2	0.05	0.35
21	2000	20	19500	5.5	6.01	6.01	0	0.02
22	1900	20	20000	4	6.01	6.12	0.11	0.13
23	2000	20	19000	4	6.05	6.08	0.03	0.13
24	1950	20	19500	4	6	6.01	0.01	0.01
25	1950	25	19500	2.5	5.96	5.98	0.02	0.06
26	1950	15	20000	4	5.99	6	0.01	0.01
27	2000	25	19500	4	5.99	6.02	0.03	0.03