GYS TITANIUM 400 AC/DC Manual De Usuario página 40

TIG AC - 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 allows to assemble pieces while while keeping the machine cooler.
Example :
The I welding current is set to a 100A and % (I_cold) = 50%, thus a Cold current of = 50% x 100A = 50A.
F(Hz) is set to 2Hz, the signal period will be 1/2Hz = 500ms -> every 250ms, one pulse at 100A then another at 50A will follow one another.
Settings Designation
Pre-gas
Starting current
Starting time
Rising current
Welding current
Wave shape
Cold current/Back-
ground current)
Cold weather
Frequency
of pulsation
Downslope
End current
End duration
Post-gas
AC wave shape
Frequency of
welding
Penetration and clea-
ning (%)
TIG AC - MIX
This method of alternating current welding is used to weld aluminium and its thick alloys. It mixes DC periods whist welding in order to increase the
energy flow to the workpiece. The final goal is to accelerate the work advance and therefore productivity on aluminium assemblies. This mode pro-
duces less pickling so it is necessary to work on clean sheets.
40
TITANIUM 400 AC/DC
Adjustable
settings
0 - 60 sec. Time to purge the torch and to protect the area with gas before ignition
10 - 200%
This starting bearing current is a phase before the current rise ramp.
0 - 10 sec.
0 - 60 sec. Current rise ramp.
3 - 400A Welding current.
Waveform of the pulsed part.
20 - 80% Second welding current known as "cold" welding current
20 - 80% Time balance of the warm current (I) of the pulsation
0.1 - 500 Hz Pulse frequency
0 - 60 sec. Downslope current.
10 - 200%
This stopping stop current is a phase after the current descent ramp.
0 - 10 sec.
Duration for which gas is released after the arc has stopped. It protects the weld pool
0 - 60 sec.
and the electrode against oxidisation when the metal is cooling down.
AC waveform.
20 - 300 Hz Frequency of polarity reversals welding - pickling
20 - 60% Percentage of the welding period dedicated to pickling (default 30-35%)
Description & advice
EN