English
English
20
Wave Control
Process
Wave
Control
Name
Effect/Range Description
GMAW-
STT
(Surface
Tension
Transfer)
Peak
Current
Controls arc
lenght
Peak Current acts similar to an arc pinch control. Peak Current sets the arc
length and promotes good fusion. Higher peak current levels will cause the
arc to broaden momentarily while increasing arc length. If set too high,
globular transfer may occur. Setting it too low may cause instability and wire
stubbing. Best practice is to adjust for minimum spatter and puddle
agitation.
Peak also affects the shape of the root. When using 100% CO2, the peak
current will be higher than when welding with blended shielded gases. A
longer arc length is required with CO2 to reduce spatter.
A. Peak Current Too Low
B. Peak
Current
Optimum
C. Peak Current too High
Background
Current
Regulates
bead contour
Background current adjusts the overall heat input into the weld. Changing
the background current changes the shape of the back bead. 100% CO2
requires less background current than when welding with blended shielding
gases.
A. Background Current Too Low
B. Background Current Optimum
C. Background Current Too High
Tail out
Provides
additional
power to the
arc
Tail out provides additional power without the molten droplet becoming too
large. Increase as necessary to add heat input without increasing arc
length. Often this results in faster travel speeds. Note that as tail out
increases, the peak current and/or background current may need to be
reduced.
GTAW
(TIG)
No Wave
controls
available
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Trigger Selection
To select the trigger type, press the right button until the
trigger LED illuminates.
Rotate the center knob clockwise for 4-step trigger or
counter-clockwise for 2-step trigger.
Note that different trigger types may be stored in the
memories. For example, memory 1 may use a 2-step
trigger and memory 3 may use a 4-step trigger.
When using A-B Dual Procedure, both A and B
procedures must be the same trigger type.
