Design and function
TIG welding
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099-000125-EW501
29.9.2022
Figure 5-24
As an example the process is shown with HF ignition. Arc ignition with lift arc is also possible, how-
ever
> see 5.2.3 chapter
.
Selecting the process activation type for the welding process
> see 5.8 chapter
.
Up-slope and down-slope times possible for long spot time setting range (0.01–20.0 s) only.
Press and release torch trigger (tap) to activate the welding process.
Touch the torch gas nozzle and tungsten electrode tip carefully against the workpiece.
Incline the welding torch over the torch gas nozzle until there is a gap of approx. 2–3 mm between the
electrode tip and the workpiece. Shielding gas flows during the set gas pre-flow time
. The arc igni-
tes and the previously set start current
flows.
The main current phase
ends when the set
spot time elapses.
For long-time spot welding only (parameter
=
):
The welding current decreases to the end-crater current
within the set down-slope time
.
The gas post-flow time
elapses and the welding process ends.
Press and release the torch trigger (tap) to reactivate the welding process (only for separate
process activation). Touching the welding torch with the tungsten electrode tip against the
workpiece again will initiate the next welding processes.
