ims PRO PROTIG 201 AC/DC Mode D'emploi page 24

Translation of the original instructions
MMA PULSE
This MMA Pulse welding mode is suitable for applications in the vertical up position (PF). The pulse mode keeps the weld pool cold and eases the
transfer of matter. Without the pulse mode, vertical-up welding requires a difficult "Christmas tree" shape triangular movement. With the MMA Pulsed
mode, this movement is no longer required and a simple straight up movement is enough (depending on the thickness of the workpiece). If you
wish to widen your weld pool, a simple lateral movement is enough (similar to normal welding). This process allows greater control during vertical-up
welding. The pulse frequency is adjustable from 0.4 Hz to 20 Hz.
TUNGSTEN ELECTRODE WELDING WITH INERT GAS (TIG MODE)
CONNECTION AND ADVICE
• TIG DC and TID AC welding require gas protection (Argon).
• Connect the earth clamp to the positive connector (+). Connect the torch to the negative plug (–), the trigger cable and the gas hose.
• Make sure that the various components that make up the torch are present (clamp, collar support, diffuser and nozzle) and that they are in good
condition.
• The electrode selection is defined according to the TIG DC or AC welding current..
ELECTRODE SHARPENING
For optimal operation, it is recommended to use a sharpened electrode as follows:
CHOICE OF ELECTRODE DIAMETER
Ø Electrode
(mm)
1
1.6
2
2.5
3.2
4
CHOICE OF THE TYPE OF IGNITION
TIG HF: non-contact high-frequency ignition of the tungsten electrode on the workpiece.
TIG LIFT : Arcing by contact (for environments where HF is not desirable).
TIG PROCESS SETTINGS
• TIG DC is dedicated to the welding of ferrous metals such as steel, stainless steel but also copper and its alloys, titanium.
• TIG AC is dedicated to the welding of aluminium and its alloys.
TIG DC WELDING
• 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 ignition to
the final cooling of your bead.
• 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
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pulse mode allows to assemble pieces while while keeping the machine cooler. It is particularly recommended for assembling thin parts.
PROTIG 201 AC/DC - 201L AC/DC
TIG DC
Pure tungsten Tungsten with oxides
10 > 75 A
60 > 150 A
75 > 180 A
130 > 230 A
160 > 310 A
275 > 450 A
~ 80 A per mm de Ø
a = Ø 0.5 mm
L = 3 x d for a low current.
L = d for a high current
10 > 75 A
60 > 150 A
100 > 200 A
170 > 250 A
225 > 330 A
350 > 480 A
1. Place the torch in the welding position above the part (distance of about
2-3 mm between the electrode tip and the part).
2. Press the the torch trigger (the arc starts without contact using High
Frequency impulsions).
3.The initial welding current flows, the weld will be
continues according to the welding cycle.
1. Position the torch nozzle and the electrode tip on the workpiece and press
the torch button.
2. Tilt the torch until the electrode tip is about 2-3 mm away from the work-
piece. The arc starts.
3. Return the torch to the normal position to start the welding cycle.
TIG AC
Pure tungsten Tungsten with oxides
15 > 55 A
45 > 90 A
65 > 125 A
80 > 140 A
150 > 190 A
180 > 260 A
~ 60 A per mm de Ø
EN
10 > 70 A
60 > 125 A
85 > 160 A
120 > 210 A
150 > 250 A
240 > 350 A