ims PRO TIG TITANIUM 400 AC/DC Mode D'emploi page 33

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 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 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
Pre-gas
Starting current
Starting time
Rising current
Welding current
Wave shape
Cold current/Back-
ground current)
Cold weather
Pulse frequency
Downslope
End current
End duration
Post-gas
ADJUSTMENT TIPS : The choice of frequency
• If welding with manual metal input, then F(Hz) synchronized to the input gesture,
• If thin without supply (< 0.8 mm), F(Hz) > 10Hz
• Welding in position, then F(Hz) < 100Hz
TIG AC WELDING
TIG AC - Standard
This TIG AC - Standard welding mode is dedicated to welding aluminium and its alloys (Al, AlSi, AlMg, AlMg, AlMn...). Alternating current allows the
pickling of aluminium essential for welding.
IMS TIG 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 - 400 A 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 - 2500 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.
Description & advice
EN
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