Special Welding Processes Available On This Machine; Power Mode; Recommended Welding Procedures For Power Mode - Lincoln Electric INVERTEC V350-PRO Service Manual

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SPECIAL WELDING
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
pop-outs or burning-through. For Aluminum welding, it
provides excellent control and the ability to maintain
constant arc length. This results in improved welding
performance in two primary types of applications.
• Short Arc MIG at low procedure settings.
• Aluminum MIG welding.
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.

Recommended Welding Procedures for Power Mode

Aluminum 4043 Aluminum 5356
MATERIAL
WIRE E4043 E5356
WIRE SIZE 0.035 0.035
GAS 100% Ar. 100% Ar.
125 / 2.25 125 / 1.75
22 ga.
20 ga. 150 / 2.5 150 / 2.3
18 ga. 200 / 3.75 200 / 3.0
16 ga.
300 / 7.75 300 / 6.85
14 ga. 400 / 9.0 400 / 7.5
12 ga.
450 / 9.5 450 / 8.0
10 ga.
500 / 10.0 500 / 8.5
3/16 600 / 11.25 600 / 9.5
1/4 700 / 11
OPERATION
PROCESSES
Mild Steel Mild Steel Mild Steel
L56 L56 L56
0.025 0.025 0.030
100% CO 75/25% Ar/CO 100% CO
2 2
Not Recommended 100 / 0.8 Not Recommended
120 / 1.0 120 / 1.0 100 / 0.7
140 / 1.7 140 / 1.5 110 / 1.5
190 / 2.0 190 / 2.0 125 / 2.0
160 / 2.3
260 / 3.0 260 / 3.0
330 / 5.0 330 / 4.5 230 / 3.5
300 / 6.0
400 / 7.5
V350-PRO
• For steel, use 75/25 Ar/CO2 shield gas.
• For Stainless, select a Helium blend Tri-Mix.
• 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 short-arc MIG procedure to know
you have the process set correctly.
• 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.
Mild Steel Mild Steel
L56 L56
0.030 0.035
75/25% Ar/CO 100% CO
2 2 2
90 / 1.0
100 / 1.0
110 / 1.5 100 / 2.5
125 / 3.0
125 / 2.0
160 / 2.3
160 / 3.8
230 / 3.5 200 / 5.0
300 / 6.0 240 / 6.5
400 / 7.0
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Mild Steel Stainless Steel Stainless Steel
L56 E308L E308L
0.035 0.030 0.035
75/25% Ar/CO Tri-mix Tri-mix
2
80 / 1.5 50 / 0.5
100 / 2.5 110 / 2.0 110 / 2.0
125 / 3.0 140 / 2.5 130 / 2.7
160 / 3.5 210 / 3.0 190 / 3.5
200 / 4.5 270 / 5.0 230 / 6.0
240 / 7.0 325 / 6.5 300 / 7.0