English
English
32
Frequency
influences the width of the arc and the
amount of heat input to the weld. If the frequency is
higher:
•
Improves penetration and the microstructure of the
weld.
•
The arc is narrower, more stable.
•
Reduces the amount of heat input to the weld.
•
Reduces distortions.
•
Increases welding speed.
Note:
Adjust range depend on the power source.
A
0.3
35.0
0.3
Figure 69.
Background Current
- value in percentage of nominal
value welding current. Adjusts the overall heat input into
the weld. Changing the background current changes
the shape of the back bead.
A
20
100
20%
Figure 70.