GYS NEOFEED 4W Mode D'emploi page 40

Wave shape
Cold current/Back-
ground current
Cold weather
Pulse frequency
Degression
End current
Stop duration
Post-gas
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
Pre-gas
Welding current
Spot
Post-gas
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.
40
NEOFEED 4W
Waveform of the pulsed part.
20 - 80% Second welding current known as "cold" welding current
20 - 80% Time balance of the pulse hot current (I)
0.1 - 2500 Hz Pulse frequency
0 - 60 secs. Down slope current.
10 - 200 %
This current treshold when stopped is a phase after the current downslope.
0 - 10 secs.
Duration for which gas is released after the arc has stopped. It protects the weld pool
0 - 60 secs.
and the electrode against oxidisation when the metal is cooling down.
Adjustable
settings
0 - 60 secs. Torch purge time and to protect the area with gas before ignition
5 - Imax Welding current.
, 0 - 60
Manual or a defined time.
secs.
Duration for which gas is released after the arc has stopped. It protects the weld
0 - 60 secs.
pool and the electrode against oxidisation when the metal is cooling down.
Description & advice
EN