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OPERATION |
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
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.
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
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| Carbon Diameter | Current Range (DC, elec- | |
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| trode positive) | |
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| 1/8"(3.2mm) | ||
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| 5/32"(4.0mm) | ||
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| 3/16"9(4.8mm) | Amps | |
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| 1/4"(6.4mm) | Amps | |
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| 5/16"(8.0mm) | Amps | |
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| 3/8"(10.0mm) | Amps* | |
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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.
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| Table b.3 TYPICAL CURRENT RANGES (1) | FOR TUNGSTEN ELECTRODES (2) | ||||||
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| DCEN | DCEP (+) | Approximate Argon Gas Flow Rate |
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| l/min (c.f.m.) |
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Tungsten |
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Electrode |
| 1%, 2% | 1%, 2% |
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| TIG TORCH | |
Diameter |
| Thoriated | Thoriated | Aluminium | Stainless Steel | Nozzle | |||
mm (in) |
| Tungsten | Tungsten |
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| Size (4), (5) | |
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.25 | (0.010) |
| (3) | #4, #5, #6 | |||||
.50 | (0.020) |
| (3) |
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1.0 | (0.040) |
| (3) |
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1.6 | (1/16) |
| #5, #6 | ||||||
2.4 | (3/32) |
| #6, #7, #8 | ||||||
3.2 | (1/8) |
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4.0 | (5/32) |
| #8, #10 | ||||||
4.8 | (3/16) |
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6.4 | (1/4) |
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(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 | EWP |
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. | 6 mm |
# 5 = | 5/16 in. | 8 mm |
# 6 = | 3/8 in. | 10 mm |
# 7 = | 7/16 in. | 11 mm |
# 8 = | 1/2 in. | 12.5 mm |
#10 = | 5/8 in. | 16 mm |
(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.
AIR VANTAGE® 500 (AU)