Castolin PRO SYNTIG 200 ACDC Notice D'utilisation page 27

shielding gas continues to be diffused.
AC/DC TIG:
welding torch as the negative electrode. It can be used to weld many metals other than aluminium and magnesium.
TIG AC welding enables aluminium and magnesium to be welded using high-frequency polarity inversion.
WAVEFORM:
triangular waves or square waves.
Square wave: Welding of light alloys at greater thicknesses, with greater penetration. High welding arc
-
noise. Higher heat transfer. Wider, thicker bead.
- Sine wave: Wave used for most applications. Good energy transmission to the workpiece. Very bright,
clean weld bead. Good speed and excellent penetration. Low welding arc noise.
- Triangular wave: Recommended for thin aluminium parts. Low energy transmitted to the part to be
welded and therefore suitable for materials or alloys with a low melting point. Penetration control (not
high). Very low welding arc noise.
4.4 Welding parameters
rent
MMA - Shielded metal arc welding
Relationship between the thickness of the metal sheet to be welded, the diameter of the electrode and the current.
the
Sheet thickness
wer.
TIG
Relationship between the current and the size of the tungsten electrode.
lten
Diameter of tungsten electrode in
ust
the
ring
ous
TIG can weld with a rod, and the diameter of the rod is linked to the current.
ues
Welding current in Amperes
weld
ime
the
the
Notices_multilangues_200ACDC.indd 27 Notices_multilangues_200ACDC.indd 27
DC TIG welding uses the workpiece as the positive electrode and the tungsten electrode of the
In AC TIG mode, you can select the waveform of the input voltage. These can be sine waves,
Electrode diameter in
in mm
< 2
2
3
4 - 5
6 - 12
mm
1,0
1,6
2,0
2,4
10 - 20
20 - 50
50 - 00
100 - 200
Current in Amperes
mm
1,6
2
3,2 100 - 130
3,2 100 - 130
4,0 160 - 180
4,0 160 - 180
DC output in Amperes
10 - 75A
40 - 130A
75 - 180A
130 - 220A
Rod diameter in mm
≥1.0
1,0 - 1,6
1,0 - 2,4
1,6 - 3,0
25 - 40
40 - 60
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