the welding speed was fixed as 40 cm/min
and the change in depth of penetration was drawn with
increasing welding current for 22, 24 and 26 V values.
The biggest penetration value was obtained as 3.19 mm
in 115 A and 26 V condition, while the smallest one as
2.46 mm in 95 A and 22 V. In all three conditions, the
depth of penetration increases with increasing welding
current. This rise is linear for 24 and 26 V arc voltages,
whereas it is stronger for 22 V in between 95 and 105 A.