Lincoln Electric Power MIG 360MP Operator's Manual page 20

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POWER MIG 360MP
Power Mode ®
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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.
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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
longer the arc. If a welding procedure is not established, the best
way to determine the Power Mode
until the desired output result is established.
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In the Power Mode two variables need to be set:
• Wire Feed Speed
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• Power Mode Trim
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Setting up a Power Mode procedure is similar to setting 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/Argon/CO2 blend.
• For Aluminum, use 100% Ar.
Start by setting the wire feed speed based upon material
thickness and appropriate travel speed. Then adjust the Trim 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 Trim knob until the desired
arc length is obtained.
Note: Trim display is simply a relative number and DOES NOT
correspond to voltage.
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Setting, the
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Setting is by experimentation
B-9
OPERATION