ims PRO TIG PRO 161 DC Manual página 22

TUNGSTEN ELECTRODE WELDING WITH INERT GAS (TIG MODE)
CONNECTIONS AND RECOMMENDATIONS
Connect the earth clamp to the positive connector (+). Connect the torch to the negative plug (–), the trigger cable and the gas hose.
Ensure that the torch is equipped and ready to weld and that the consumables (Vise grip, ceramic gas nozzle, collet and collet body) are not worned
out.
TIG WELDING PROCESSES
TIG - HF 2T
TIG - Lift 4T
MMA 4T
The grey areas are not useful for this mode.
• TIG DC
This welding mode in direct current (DC) is designed for ferrous metal such as steel, stainless steel or even copper and its alloys.
• TIG DC Pulsé
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.
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, a 100A pulse then a 50A pulse will succeed each other.
The choice of frequency
- If welding with manual filler metal, then F(Hz) synchronised to the gesture,
- If thin plate without TIG electrodes (< 8/10 mm), F(Hz) >> 10Hz
The pulse frequency is set by pressing and releasing the «F(Hz)» button and then actuating the main incremental encoder. Frequency value increases
when the incremental encoder is operated clockwise and decreases when it is operated anti-clockwise. Once the setting has been made, it is possible
to re-press and release the «F(Hz)» button to re-link the main incremental encoder to the frequency setting or to wait 2 seconds. This frequency
ranges from 0.1Hz to 100Hz in Pulse TIG. The incrementation step depends on the frequency range:
Pulse frequency (Hz)
0.1 Hz - 3 Hz
3 Hz - 25 Hz
30 Hz - 100 Hz
• SPOT tacking
The « SPOT» mode allows the pre-assembly of parts by tacking. The tacking time adjustment allows a better reproducibility and the realisation of
non-oxidised tack. As default, when the « SPOT « mode is selected, the start and the end of the welding is done at the trigger. However, the « F(Hz)
« button and the main encoder allow the user to refine this time. The time in this «SPOT» tacking mode is adjustable from 0 sec. to 60 sec. in steps
of 0.1 sec. The ignition is then done with the trigger. To return to an undefined tacking time, simply select «0.0s» as the default value.
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A
V
JOB
s Hz
%
%
F
(Hz)
LOG
TIG
Incremental steps (Hz)
TIG PRO 161 DC
SETUP Press 3"
TIG - HF
Pulse
TIG - Lift
Spot
MMA
MMA Pulse
0.1 Hz
1 Hz
5 Hz
A
V
s Hz
%
%
F
(Hz)
2T
4T
4T
LOG
TIG PULSE
The grey areas are not useful for this mode.
EN
JOB
SETUP Press 3"
Pulse
Spot
MMA Pulse