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MIG WELDING PRINCIPLES
MIG (Metal Inert Gas) welding allows you to fuse together two similar metals
without altering the properties of the metal.
A consumable wire electrode is continuously fed through the welding torch
that is fitted with a concentric gas nozzle. the wire is connected to a high
voltage supply which creates an electric arc between the electrode (the
wire) and the workpiece. The arc is used to create the required heat to turn
the metal into a molten state. The wire is used as both the electrode and as a
filler.
The gas is used to prevent oxidation and to shield the arc and the weld from
atmospheric contamination. The choice of gas is dependent upon the
material being welded
.
When using the welder in a gasless configuration the shielding gas is created
from the flux within the welding wire.
When using the welder outside you may need to erect a wind break to make
sure the shielding gas is not blown away, thereby leaving a poor quality weld.
GAS/NO-GAS SELECTION
The welder can be configured to
weld, with or without a gas supply
according to the type of welding
wire being used.
• Mild steel solid core (With Gas)
• Flux cored (No Gas)
Metal Being Welded
Suitable Gas
Part number
Mild Steel
Carbon Dioxide (CO2) 6000643
Stainless Steel
Argon
6000661
Aluminium
Thin Sheet Metal/Mild
Steel
Carbon Dioxide (CO2)/Argon Mix
6000660
Содержание 6014011
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