ESAB CIGWELD XF190 Operating Manual page 43

SETTING OF THE POWER SOURCE
Power source setting requires some practice by the operator,
(however with the QuickSet feature of the BLUEVENOM XF190,
setting up the correct parameters is a very simple procedure
- refer to section 5.10 and 5.11), as the welding plant has two
control settings that have to balance. These are the Wire Feed
Speed control and the welding Voltage Control. The welding
current is determined by the Wire Feed Speed control, the
current will increase with increased Wire Feed Speed, resulting
in a shorter arc. Less Wire Feed Speed will reduce the current
and lengthen the arc. Increasing the welding voltage hardly
alters the current level, but lengthens the arc. By decreasing
the voltage, a shorter arc is obtained with a little change in
current level
When changing to a different electrode wire diameter,
different control settings are required. A thinner electrode
wire needs more Wire Feed Speed to achieve the same
current level.
A satisfactory weld cannot be obtained if the Wire Feed Speed
and Voltage settings are not adjusted to suit the electrode wire
diameter and the thickness of the work piece.
OPERATING MANUAL
If the Wire Feed Speed is too high for the welding voltage,
"stubbing" will occur as the wire dips into the molten pool and
does not melt. Welding in these conditions normally produces
a poor weld due to lack of fusion. If, however, the welding
voltage is too high, large drops will form on the end of the wire,
causing spatter. The correct setting of voltage and Wire Feed
Speed can be seen in the shape of the weld deposit and heard
by a smooth regular arc sound. Refer to the Weld Guide
located on the inside of the wirefeed compartment door
for setup information.
ELECTRODE WIRE SIZE SELECTION
The choice of Electrode wire size and shielding gas used
depends on thew following:
• Thickness of the metal to be welded
• Type of joint
• Capacity of the wire feed unit and Power Source
• The amount of penetration required
• The deposition rate required
• The bead profile desired
• The position of welding
• Cost of the wire
BLUEVENOM XF190
CIGWELD.COM.AU | 43