ESAB Warrior 400i CC/CV Manual De Instrucciones página 46

GB
TIG welding
TIG welding melts the metal of the workpiece, using an arc struck from a tungsten
electrode, which does not itself melt. The weld pool and the electrode are protected
by shielding gas.
For TIG welding, the welding power source shall be supplemented with:
S
a TIG torch with gas valve
S
an argon gas cylinder
S
an argon gas regulator
S
tungsten electrode
"Live TIG-start"
At a "Live TIG-start" the tungsten electrode is placed against the workpiece. When
the electrode is lifted away from workpiece, the arc is struck at a limited current level.
Arc air gouging
With arc air gouging, a special electrode comprising a carbon rod with a copper
casing is used.
An arc is formed between the carbon rod and the workpiece, which melts the
material. Compressed air is supplied so that the melted material is blown away.
Recommendation for gouging
Electrode Ø Voltage Min. Voltage Max.
6mm (1/4")
8mm (5/16")
10mm (3/8")
MMA welding
MMA welding may also be referred to as welding with coated electrodes. Striking the
arc melts the electrode, and its coating forms protective slag.
For MMA welding the power source shall be supplemented with:
S
welding cable with electrode holder
S
return cable with clamp
bu21e
36V 49V
39V 52V
43V 52V
Electrode Extension
50 ­ 76mm
(2 ­ 3")
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© ESAB AB 2013