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 1

Main factors and their value ranges.

Control factor	Unit	Min value	Max value
(A) Power	Watt	1900	2000
(B) Nitrogen pressure	MPa	15	25
(C) Frequency	Hz	19000	20000
(D) Cutting speed	m/min	2.5	5.5