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B-9
WIRE WELDING-CV
Connect a wire feeder to the AIR VANTAGE® 500
(AU) (AU)according to the instructions in INSTALLA-
TION INSTRUCTIONS Section.
The AIR VANTAGE® 500 (AU) in the "CV-WIRE"
position, permits it to be used with a broad range of
flux cored wire (Innershield and Outershield) elec-
trodes and solid wires for MIG welding (gas metal arc
welding). Welding can be finely tuned using the "ARC
CONTROL". Turning the ARC CONTROL clockwise
from -10(soft) to +10(crisp) changes the arc from soft
and washed-in to crisp and narrow. It acts as an
inductance/pinch control.
The proper setting depends on the procedure and
operator preference. Start with the knob set at 0.
For any electrodes, including the above recommenda-
tions, the procedures should be kept within the rating
of the machine. For additional electrode information,
See www.lincolnelectric.com or the appropriate
Lincoln publication.
Table B.3 TYPICAL CURRENT RANGES
DCEN (-)
Tungsten
Electrode
Diameter
Thoriated
mm (in)
Tungsten
.25 (0.010)
.50 (0.020)
1.0 (0.040)
1.6 (1/16)
2.4 (3/32)
150-250
3.2 (1/8)
250-400
4.0 (5/32)
400-500
4.8 (3/16)
500-750
6.4 (1/4)
750-1000
(1)
When used with argon gas. The current ranges shown must be reduced when using argon/helium or pure helium shielding gases.
(2)
Tungsten electrodes are classified as follows by the American Welding Society (AWS):
Pure
1% Thoriated
2% Thoriated
Though not yet recognized by the AWS, Ceriated Tungsten is now widely accepted as a substitute for 2% Thoriated Tungsten in AC and DC applica-
tions.
(3)
DCEP is not commonly used in these sizes.
(4)
TIG torch nozzle "sizes" are in multiples of 1/16ths of an inch:
# 4 =
1/4 in.
# 5 =
5/16 in.
# 6 =
3/8 in.
# 7 =
7/16 in.
# 8 =
1/2 in.
#10 =
5/8 in.
(5)
TIG torch nozzles are typically made from alumina ceramic. Special applications may require lava nozzles, which are less prone to breakage, but can-
not withstand high temperatures and high duty cycles.
OPERATION
DCEP (+)
1%, 2%
1%, 2%
Thoriated
Tungsten
2-15
(3)
5-20
(3)
15-80
(3)
70-150
10-20
15-30
25-40
40-55
55-80
80-125
EWP
EWTh-1
EWTh-2
6 mm
8 mm
10 mm
11 mm
12.5 mm
16 mm
AIR VANTAGE® 500 (AU)
ARC GOUGING
For optimal performance when arc gouging, set the
AIR VANTAGE® 500 (AU) "WELD MODE" switch to
the "CC - STICK" position, and the "ARC CONTROL"
to 10.
Set the "OUTPUT" knob to adjust output current to the
desired level for the gouging electrode being used
according to the ratings in the following Table B.2
TABLE B.2
Carbon Diameter
1/8"(3.2mm)
5/32"(4.0mm)
3/16"9(4.8mm)
1/4"(6.4mm)
5/16"(8.0mm)
3/8"(10.0mm)
NOTE: If desired the CV mode can be used for Arc Gouging.
* Maximum current setting is limited to the AIR VANTAGE® 500 (AU) maximum
of 575 Amps.
(1)
FOR TUNGSTEN ELECTRODES
Approximate Argon Gas Flow Rate
l/min (c.f.m.)
Aluminium
Stainless Steel
2-4 (3-8)
2-4 (3-8)
3-5 (5-10)
3-5 (5-10)
3-5 (5-10)
3-5 (5-10)
3-5 (5-10)
4-6 (9-13)
6-8 (13-17)
5-7 (11-15)
7-11 (15-23)
5-7 (11-15)
10-12 (21-25)
6-8 (13-17)
11-13 (23-27)
8-10 (18-22)
13-15 (28-32)
11-13 (23-27)
Current Range (DC, elec-
trode positive)
30-60 Amps
90-150 Amps
200-250 Amps
300-400 Amps
350-450 Amps
450-575 Amps*
(2)
TIG TORCH
Nozzle
Size (4), (5)
#4, #5, #6
#5, #6
#6, #7, #8
#8, #10
B-9
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