40
NEOFEED 4W
EN
Wave shape
Waveform of the pulsed part.
Cold current/Back
-
ground current
20 - 80%
Second welding current known as "cold" welding current
Cold weather
20 - 80%
Time balance of the pulse hot current (I)
Pulse frequency
0.1 - 2500 Hz
Pulse frequency
Degression
0 - 60 secs.
Down slope current.
End current
10 - 200 %
This current treshold when stopped is a phase after the current downslope.
Stop duration
0 - 10 secs.
Post-gas
0 - 60 secs.
Duration for which gas is released after the arc has stopped. It protects the weld pool
and the electrode against oxidisation when the metal is cooling down.
Access to some welding parameters depends on the selected display mode: Settings/User Level: Easy, Expert, Advanced.
ADJUSTMENT TIPS : The choice of frequency
• If welding using filler wire, then synchronise F(Hz) with the filling gesture,
• If thickness is low (< 0.8 mm) and not using filler wire, F(Hz) > 10Hz
• Welding in position, then F(Hz) < 100Hz
TIG DC TACK WELDING
• SPOT
This welding mode allows the parts to be pre-assembled before welding. Spot welding can be done manually using the trigger or timed at a predefined
pace. This spot welding timer is useful for better reproducibility and when making non-oxidized welds (accessible in the advanced menu).
Settings
Designation
Adjustable
settings
Description & advice
Pre-gas
0 - 60 secs.
Torch purge time and to protect the area with gas before ignition
Welding current
5 - Imax
Welding current.
Spot
, 0 - 60
secs.
Manual or a defined time.
Post-gas
0 - 60 secs.
Duration for which gas is released after the arc has stopped. It protects the weld
pool and the electrode against oxidisation when the metal is cooling down.
Access to some welding parameters depends on the selected display mode: Settings/User Level: Easy, Expert, Advanced.
• TACK
The welding mode also allows parts to be pre-assembled before welding, but this time in two phases: a first phase of pulsed DC concentrating the arc
for better penetration, followed by a second phase of standard DC widening the arc and thus the bath to ensure the point.
The adjustable duration of each phase enables control of the weld time for better spot welding results and an non-oxidised spot.
