Mma Welding; Mma Welding Manual - Fimer KING 350 Manuel D'emploi

9. MMA WELDING

To select this welding mode, use switch 10,
select MMA and press confirm.
Electric arc welding with a covered MMA
(Metal Manual Arc) electrode or SMAW
(Shielded Metal Arc Welding) is a manual
welding procedure that takes advantage of
the heat generated by the electric arc, which
strikes between a covered earthed electrode
and the workpiece. This procedure allows for
the creation of joints in any position, in the
workshop, outdoors, in confined areas or
places that are difficult to access.
With the K 350 K
ING ,
is possible to weld any type of electrode and
diameter. The spark of the arc occurs by
placing the electrode close to the workpiece.
The correct connection of the electrode
clamp holder and the earth cable can be
seen in the table below:
Front Socket
WELDING
PROCESS
18 di Fig.1
ELECTRODE
MMA
CLAMP HOLDER
Always make sure that the earth and the
electrode clamp holder are kept far apart.
16
410 and K 510 it
ING ING
Front Socket
+ -
17 di Fig.1
EARTH CABLE

9.1 MMA WELDING Manual

This mode can be accessed using switch 10.
Selecting this option will take you to the
welding screen:
Switch 9 in fig. 1 adjusts the welding current
(very thick workpieces require a higher
current).
Furthermore, switch
parameters shown in the figure below:
Ready to weld
1 5 0 A
>
1 5 , 0 V
arc force
hot start
durata hot start
remote ctrl
min current
ADJUSTMENTS AND SETTINGS:
Button 10 adjusts the welding settings on the
screen:
Arc Force: Used to set the increase in current
as a percentage of
the welding current, which the welder can
provide to keep the arc fully ignited.
Hot start: Used to set the current increase as
a percentage of the welding current, which the
welder can provide at the time the arc is struck.
Hot start span: Used to set the time during
which the hot start current is provided.
Remote ctrl: Allows the power supply
remote control to be switched ON or OFF.
Min current: Allows the user to set up the
minimum output current when the remote
control is on and is set to the minimum value.
10 adjusts the
START
BACK
MEM +
OPTIONS
120%
MMA
120%
Manual
0.5s
OFF
15A