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

Table 2

Taguchi design: level and factors.

Factors/level	Peak current (Ip) in amps	Base current (Ib) in amps	Peak in (%)	Low frequency () in Hz	High frequency () in Hz
Level 1	200	60	40	6	150
Level 2	220	80	50	8	200
Level 3	240	100	60	10	250