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31
Welding GTAW / GTAW-PULSE Process
Arc ignition can be achieved only by lift TIG method
(contact ignition and lift ignition).
Table 16. The Welding Programs
Process
Program
GTAW
3
GTAW-PULSE
8
Note:
The list of available programs depends on the
power source.
Procedure of begin welding of GTAW/GTAW-PULSE
process:
•
Connect Lincoln Electric power sources using
ArcLink
®
protocol to communication to wire feeder.
•
Connect GTAW torch to Euro Socket [1].
Note:
To connect GTAW torch, adapter TIG-EURO
has to be purchased (See "Accessories" chapter).
•
Connect the work lead to output sockets of the power
source and lock it.
•
Connect the work lead to the welding piece with the
work clamp.
•
Install the proper tungsten electrode in the GTAW
torch.
•
Turn the input power ON.
•
Set the GTAW or GTAW-PULSE 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.
Note:
Arc Ignition is achieved by touching the work
piece with the electrode and lifting it by a few
millimeters – contact ignition and lift ignition.
•
By applying the principle of occupational health and
safety at welding, welding can be begun.
For 3 program can set:
•
Welding current [9]
•
Switch on / switch off the output voltage on the
output lead [10]
Note:
It does not work in the 4-Step.
•
Postflow Time
•
2-Step / 4-Step
•
Crater [27]
•
Wave Control [27]:
••••
HOT START
For 8 program can set:
•
Welding current [9]
•
Switch on / switch off the output voltage on the
output lead [10]
Note:
It does not work in the 4-Step.
•
Postflow Time
•
2-Step / 4-Step
•
Crater
•
Wave Control
••••
Frequency
••••
Background current
••••
HOT START
The 2-Step - 4-Step
changes the function of the gun’s
trigger.
•
2 Step trigger operation turns welding on and off in
direct response to the trigger. Welding process is
performed when the gun’s trigger is pulled.
•
4-Step mode allows to continue welding, when the
gun’s trigger is released. To stop welding, the gun’s
trigger is pulled again. 4-step mode facilitates to
making long welds.
Note:
4-Step does not work during Spot Welding.
A
Figure 67.
HOT START
– value in percentage of nominal value
welding current during arc start current. The control is
used to set the level of the increased current and arc
start current is made easy.
••••
Adjust range: from 0 to +10.
A
A
OFF
10.0
OFF
Figure 68.
