Influence of Different Frequency Pulse on Weld Bead Phase Ratio in Gas Tungsten Arc Welding by Ferritic Stainless Steel AISI-409L

Table 4

Taguchi L9 orthogonal array and experimental results of LF pulsing for bead geometry and their corresponding S/N values and heat inputs.

S. no.	Ip	Ib	Peak%	Frequency (Hz)	AR	SNRA1	MEAN1	Depth (mm)	Heat input (J/mm)
	200	60	40	150	3.29	-10.291	1.87	2.2	450
	200	80	50	200	2.50	-6.9661	1.82	3.56	607
	200	100	60	250	2.48	-7.2722	2.26	4.14	744.8
	220	60	50	250	2.25	-5.7111	1.81	4.25	625.6
	220	80	60	150	2.44	-7.7478	1.82	4.26	783.2
	220	100	40	200	2.26	-7.3471	1.68	4.09	700.7
	240	60	60	200	2.59	-7.8539	1.9	4.21	841
	240	80	40	250	2.30	-7.6042	2.36	4.47	843
	240	100	50	150	2.65	-7.7478	2.12	4.16	671.1