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25
Welding SMAW (MMA) Process
Table 17 SMAW Welding Programs
Program number
Process
Powertec
®
Speedtec
®
Flextec
®
SMAW 1
Note:
The list of available programs depends on the
power source.
Procedure of beginning welding of SMAW process:
Connect Lincoln Electric source to wire feeder
(mentioned in Introduction chapter).
Determine the electrode polarity for the electrode to
be used. Consult the electrode data for this
information.
Depending on the polarity of using electrode,
connect the work lead and the electrode holder with
lead to output sockets and lock them. See the Table
18.
Table 18.
Output Socket
POLARITY
DC (+)
The electrode holder
with lead to SMAW
[4]
Power connection
lead
Power source
Work lead
Power source
DC (-)
The electrode holder
with lead to SMAW
[4]
Power connection
lead
Power source
Work lead
Power source
Connect the work lead to the welding piece with the
work clamp.
Install the proper electrode in the electrode holder.
Turn the input power ON.
Set the SMAW welding program.
Note:
The list of available programs depends on the
power source.
Set the welding parameters.
The welding machine is now ready to weld.
By applying the principle of occupational health and
safety at welding, welding can be begun.
For program number 1 can be set:
Welding current
Switch on / switch off the output voltage on the
output lead
Wave Controls:
ARC FORCE
HOT START
ARC FORCE -
the output current is temporarily
increased prevents the electrode from sticking and
facilitates the welding process.
Lower values will provided less short circuit current and
a softer arc. Higher settings will provided a higher short
circuit current, more forceful arc and possibly of more
spatter.
Default value: 0.
Regulation range: from -10.0 to +10.0
HOT START
– percentage regulation of increasing
nominal current value during arc start with electrode. It
cause temporarily increased of output current and made
easy arc start with electrode.
Default value: +5.
Regulation range: from 0 to +10.0.
