ESAB Warrior 500i CC/CV Instruction Manual page 16

US
GTAW welding
GTAW 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 GTAW welding, the welding power source shall be supplemented with:
S
a 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 is used comprising a carbon rod with a
copper casing.
An arc is formed between the carbon rod and the workpiece, which melts the
material. Pressurized air is supplied so that the melted material is blown away.
For Arc air gouging the power source shall be supplemented with:
S
arc air torch
S
pressurized air
Recommendation for gouging
Electrode Ø
6mm (1/4")
8mm (5/16")
10mm (3/8")
SMAW welding
SMAW welding may also be referred to as welding with coated electrodes. Striking the
arc melts the electrode, and its coating forms protective slag.
For SMAW welding the power source shall be supplemented with:
S
welding cable with electrode holder
S
return cable with clamp
bu22a
Voltage Min. Voltage Max.
36V
39V
43V
- 16 -
Electrode Extension
49V 50 ­ 76mm
52V
52V
(2 ­ 3")
© ESAB AB 2013