Thermal Arc Fabricator 181i Operating Manual page 82

Fabricator 181i
Tungsten Electrode Types
Electrode Type
(Ground Finish)
DC welding of mild
Thoriated 2% steel, stainless steel
and copper
High quality AC weld-
ing of aluminum,
Zirconated 1%
magnesium and their
alloys.
AC & DC welding of
mild steel, stainless
Ceriated 2% steel, copper, alumi-
num, magnesium and
their alloys
The Fabricator 181i is not suited for AC TIG welding.
Base Metal DC Current
Thickness for Mild
Steel
0.040" 35-45
1.0mm 40-50
0.045" 45-55
1.2mm 50-60
1/16" 60-70
1.6mm 70-90
1/8" 80-100
3.2mm 90-115
3/16" 115-135
4.8mm 140-165
1/4" 160-175
6.4mm 170-200
TIG Welding is generally regarded as a specialized process that requires operator competency. While many of the
principles outlined in the previous Arc Welding section are applicable a comprehensive outline of the TIG Welding
process is outside the scope of this Operating Manual. For further information please refer to www.thermadyne.
com or contact Thermal Arc.
BASIC WELDING GUIDE
Welding Application
Excellent arc starting,
Long life, High current
carrying capacity
Self cleaning, Long
life, Maintains balled
end, High current car-
rying capacity.
Longer life, More
stable arc, Easier
starting, Wider current
range, Narrower more
concentrated arc.
DC Current Tungsten
for Stainless Electrode
Steel Diameter
20-30 0.040"
25-35 1.0mm
30-45 0.040"
35-50 1.0mm
40-60
50-70 1.6mm
65-85
90-110 1.6mm
100-125
125-150 2.4mm
135-160
160-180 3.2mm
Features
Table 4-9
NOTE
Filler Rod
Diameter (if
required)
1/16"
1.6mm
1/16"
1.6mm
1/16" 1/16"
1.6mm
1/16" 3/32"
2.4mm
3/32" 1/8"
3.2mm
1/8" 5/32"
4.0mm
Table 4-10
4-24
Color Code
Red
White
Grey
Argon Gas Joint Type
Flow Rate
CFH
10-15 Butt/Corner
Lap/Fillet
10-15 Butt/Corner
Lap/Fillet
15 Butt/Corner
Lap/Fillet
15 Butt/Corner
Lap/Fillet
20 Butt/Corner
Lap/Fillet
20 Butt/Corner
Lap/Fillet
Manual 0-5191