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The machine has both an automatic and manul mode. In the automatic
mode, you must first select the filler wire material after which the welding
voltage and wire feed speed can be adjusted with one control according
to the thickness of the welded sheet. Thus, selecting the right parameters is
easy. In automatic mode, the length of the arc, or welding heat, is trimmed
with another control. In manual mode, the welding voltage and wire feed
speed are adjusted separately with their own controls. The use of the
machine is aided with a display which also displays the welding current,
welding voltage and wire feed speed.
You can also use steel wire (solid or cored wire), stainless steel wire or
aluminium wire as filler wire in the machine. The steel wire can be 0.6 mm, 0.8
mm or 1.0 mm thick, but the machine's welding properties are optimum with
a steel wire of 0.8 mm diameter. The stainless steel wire can be 0.8 mm, 0.9
mm or 1.0 mm in diameter and the aluminium wire 1.0 mm.
1.3
aBOut welDing
In addition to the welding machine, welding outcome is influenced
EN
by the piece being welded and the welding environment. Therefore,
recommendations in this manual must be followed.
During welding electric current is led with the welding gun's current nozzle
to the filler wire and via that to the welded piece. Earthing cable attached to
the workpiece guides the current back to the machine, forming the needed
closed circuit. Unrestricted current flow is possible when the earthing clamp
is properly attached to the workpiece and the fixing point of the clamp on
the workpiece is clean, paintless and rustfree.
Shielding gas must be used during welding in order to prevent air from
mixing with the weld pool. Pure carbon dioxide or a mixture of argon and
carbon dioxide is suitable for steel wire shielding gas. Argon + 2 % CO ²
mixture is suitable for stainless steel wires. Argon is suitable for welding
aluminium wires. Some filler wires form a shielding gas from the wire's filling
as it melts thus eliminating the need for a separate shielding gas.
4
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