ims PRO TITANIUM 400 AC/DC Mode D'emploi page 35

AC wave shape
Welding frequency
Percentage of
pickling
ADJUSTMENT TIPS
• Low hot start for thin sheets and high start for thicker and more difficult metals (dirty or oxidized parts).
• The Arc Force can be adjusted from -10 to +10 manually or an electrode selection is possible (Rutile, Basic or Cellulosic) by conti-
nuing the adjustment beyond +10. Arc Low force, for rutile electrodes, stainless steel. Strong arc force, for basic, cast iron and cellulo-
sic electrodes.
TUNGSTEN ELECTRODE WELDING WITH INERT GAS (TIG MODE)
CONNECTION AND ADVICE
• DC TIG welding requires gas protection (Argon).
• Connect the earth clamp to the positive connector (+). Connect the power cable to the negative plug (–), as well as the torch and the gas connec-
tions.
• Ensure that the torch is equipped and ready to weld, and that the consumables (Vice grip, ceramic gas nozzle, collet and collet body) are not
damaged.
ELECTRODE GRINDING
For optimal operation, it is recommended to use a sharpened electrode as follows:
CHOICE OF ELECTRODE DIAMETER
Ø Électrode
(mm)
Pure tungsten
1 10 > 75 A
1.6 60 > 150 A
2 75 > 180 A
2.5 130 > 230 A
3.2 160 > 310 A
4 275 > 450 A
SELECT IGNITION MODE
TIG HF: High Frequency start without contact
TIG LIFT : Arcing by contact (for environments where HF is not desirable).
1 2
1 2
TITANIUM 400 AC/DC
AC waveform. The trapezoidal shape is preferred.
15 - 150 Hz Frequency of polarity reversals welding - pickling
20 - 80% Percentage of the welding period dedicated to pickling (default 30-35%)
d
L
TIG DC
Tungsten with oxides
10 > 75 A
60 > 150 A
100 > 200 A
170 > 250 A
225 > 330 A
350 > 480 A
~ 80 A per mm de Ø
3
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 torch trigger (the arc starts without contact using High Frequency
impulsions).
3- The initial welding current circulates, the welding carries on according to the
welding cycle.
3
1- Position the torch nozzle and the tip of the electrode on the piece of metal and
press the trigger.
2- Position the torch to create a gap of roughly 2-3 mm between the tip of the
electrode and the metal. The arc starts.
3- Put the position back into position to start the welding cycle.
a
a = Ø 0.5 mm
L = 3 x d for a low current.
L = d for a high current
Pure tungsten
15 > 55 A
45 > 90 A
65 > 125 A
80 > 140 A
150 > 190 A
180 > 260 A
TIG AC
Tungsten with oxides
10 > 70 A
60 > 125 A
85 > 160 A
120 > 210 A
150 > 250 A
240 > 350 A
~ 60 A per mm de Ø
EN
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