Design and function
Shielding gas supply (shielding gas cylinder for welding machine)
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099-000159-EW501
16.08.2016
5.10.11 Pulse welding
The following pulse types can be selected:
• Thermal pulsing (TIG AC or TIG DC)
• Metallurgical pulsing (TIG DC)
• Automated pulsing (TIG DC)
• AC pulsing (TIG AC)
• AC special (TIG AC)
The machines have an integrated pulse device.
With pulses, the machine switches back and forth between the pulse current (main current) and
pause current (secondary current).
5.10.11.1 Thermal pulsing
The operation sequences with thermal pulses basically match the standard welding sequences,
but there is an additional switching back and forth between pulse and pause currents at the
relevant times.
I
AMP
t1
t2
t
AMP%
Figure 5-28
TIG pulses – non-latched operation
Figure 5-29