OPERATION
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TIG GTAW
The TIG mode features continuous control from 5 to 425 amps. The TIG mode can be run in either the Touch Start TIG or Scratch start mode.
The Arc Control level selects the starting mode.
Between
Between 0 and 10, the Scratch starting TIG mode is selected. In this range, the OCV of the machine is con- trolled between 50 and 70 volts.
Power Mode™ is a method of high speed regulation of the output power whenever an arc is established. It provides a fast response to changes in the arc. The higher the Power Mode Setting, the longer the arc. If a welding procedure is not established, the best way to determine the Power Mode Setting is by experimenta- tion until the desired output result is established.
In the Power Mode variables need to be set:
•Wire Feed Speed
•Output
•Arc Control
Setting up a Power Mode procedure is similar to set- ting a CV MIG procedure. Select a shielding gas appropriate for a short arc process.
•For steel, use 75/25 Ar/CO2 shield gas.
•For Stainless, select a Helium blend
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SPECIAL WELDING PROCESSES AVAILABLE ON THIS MACHINE
POWER MODE™
The Power Mode™ process was developed by Lincoln to maintain a stable and smooth arc at low procedure settings which are needed to weld thin metal without
•Short Arc MIG at low procedure settings.
•Aluminum MIG welding.
• For Aluminum, use 100% Ar.
Start by setting the wire feed speed based upon mate- rial thickness and appropriate travel speed. Then adjust the Output knob as follows:
•For steel, listen for the traditional “frying egg” sound of a good
•For aluminum, simply adjust the Output knob until the desired arc length is obtained.
Note the Volts display is simply a relative number and DOES NOT correspond to voltage.
Some procedure recommendations appear in the table below.
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Recommended Welding Procedures for Power Mode
| MATERIAL | Aluminum 4043 | Aluminum 5356 | Mild Steel | Mild Steel | Mild Steel | Mild Steel | Mild Steel | Mild Steel | Stainless Steel | Stainless Steel | |||
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| WIRE |
| E4043 | E5356 | L56 | L56 | L56 | L56 | L56 | L56 | E308L | E308L | ||
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| WIRE SIZE | 0.035 | 0.035 | 0.025 | 0.025 | 0.030 | 0.030 | 0.035 | 0.035 | 0.030 | 0.035 | |||
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| GAS |
| 100% Ar. | 100% Ar. | 100% CO2 | 75/25% Ar/CO2 | 100% CO2 | 75/25% Ar/CO2 | 100% CO2 | 75/25% Ar/CO2 | ||||
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| 22 ga. | 125 | / 2.25 | 125 / 1.75 | Not Recommended | 100 / 0.8 | Not Recommended | 90 / 1.0 |
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| SETTINGMODEPOWER/WFS |
| 20 ga. | 150 | / 2.5 | 150 / 2.3 | 120 / 1.0 | 120 / 1.0 | 100 / 0.7 | 100 / 1.0 |
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| 80 / 1.5 | 50 / 0.5 |
THICKNESSMATERIAL |
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| 18 ga. | 200 | / 3.75 | 200 / 3.0 | 140 / 1.7 | 140 / 1.5 | 110 / 1.5 | 110 / 1.5 | 100 / 2.5 | 100 / 2.5 | 110 / 2.0 | 110 / 2.0 | ||
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| 16 ga. | 300 | / 7.75 | 300 / 6.85 | 190 / 2.0 | 190 / 2.0 | 125 / 2.0 | 125 / 2.0 | 125 / 3.0 | 125 / 3.0 | 140 / 2.5 | 130 / 2.7 |
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| 14 ga. | 400 | / 9.0 | 400 / 7.5 | 260 / 3.0 | 260 / 3.0 | 160 / 2.3 | 160 / 2.3 | 160 / 3.8 | 160 / 3.5 | 210 / 3.0 | 190 / 3.5 |
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| 450 | 450 / 8.0 | 330 / 5.0 | 330 / 4.5 | 230 / 3.5 | 230 / 3.5 | 200 / 5.0 | 200 / 4.5 | 270 / 5.0 | 230 / 6.0 | ||
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| 10 ga. | 500 | / 10.0 | 500 / 8.5 |
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| 300 / 6.0 | 300 / 6.0 | 240 / 6.5 | 240 / 7.0 | 325 / 6.5 | 300 / 7.0 |
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| 3/16 | 600 | / 11.25 | 600 / 9.5 |
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| 400 / 7.5 | 400 / 7.0 |
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| 1/4 |
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| 700 / 11 |
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POWER WAVE 355/405
