39
NEOFEED 4W
EN
Energie
Hold
Thermal coeff.
-
See chapter «ENERGY MODE» on pages following.
TIG DC WELDING / GTAW
• TIG DC Standard
The TIG DC Standard welding process allows high quality welding on most ferrous materials such as steel, stainless steel, but also copper and its
alloys, titanium... The many possibilities of current and gas management allow you to perfectly control your welding operation, from the priming to
the final cooling of your weld bead.
Settings
Designation
Adjustable
settings
Description & advice
Pre-gas
0 - 60 secs.
Torch purge time and to protect the area with gas before ignition
Starting current
10 - 200 %
This current treshold at the start is a phase before the current upslope.
Starting time
0 - 10 secs.
Rising current
0 - 60 secs.
Up slope current.
Welding current
10 - Imax
Welding current.
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.
• TIG DC Pulse
This pulsed current welding mode is a combination of high current pulses (I, welding pulse) and low current pulses (I_Cold, part cooling pulse). This
pulse mode is used to prevent the machine from overheating when assembling pieces together.
Example :
The welding current I is set to 100A and % (I_Cold) = 50%, i.e. a cold current = 50% x 100A = 50A.
F(Hz) is set to 10Hz, the signal period will be 1/10Hz = 100ms -> every 100ms, one pulse at 100A then another at 50A will follow one another.
Settings
Designation
Adjustable
settings
Description & advice
Pre-gas
0 - 60 secs.
Torch purge time and to protect the area with gas before ignition
Starting current
10 - 200 %
This current treshold at the start is a phase before the current upslope.
Starting time
0 - 10 secs.
Rising current
0 - 60 secs.
Up slope current.
Welding current
10 - Imax
Welding current.
