Cap-Shaping (Magicwave); Setting The Parameters; Setting The Shielding Gas Flow Rate; Purging Of Shielding Gas - Fronius TransTig 2200 Instructions De Service

Cap-shaping Where the "AC welding process with activated cap-shaping function" has been selected,
(MagicWave) automatic cap-shaping is available on the MagicWave power sources. This function
takes account of the pre-set electrode diameter in order to achieve the best results.
Fig.9
If the tungsten electrode already has a large enough cap, use "AC welding (without cap-
shaping)".
The cap-shaping function can also be activated by pushing the torch trigger forward.
Precondition: TIG-AC welding must have been selected.
Setting the
A list of all the available parameters may be found in the section headed: "The control
parameters
panel".
Select the desired parameters with the parameter selection buttons, and alter them with
the adjusting dial.
Important! All parameter command values that have been set by means of the adjusting
dial will remain stored until the next time they are changed. This is true even if the power
source is switched off and on again in the meantime.
Setting the 1.
shielding gas 2.
flow rate
Important! The test gas flow lasts a maximum of 30 seconds. Press the button again to
stop the test gas flow before the 30 seconds are up.
Purging of shiel- Important! Purging with shielding gas is necessary if condensation forms when the
ding gas device is left unused in a cold environment for a prolonged period. Long hosepacks are
most affected. See section: The set-up menu - section: Shielding gas set-up parameters.
For an optimised ignition sequence when the TIG-AC welding process has been se-
Arc ignition -
lected, the MagicWave power sources take account of the diameter of the electrode.
general remarks
They also take account of the electrode's actual temperature, calculated with reference
to the preceding welding and weld-off times.
After ignition
Before ignition
Cap-shaping
Note! The "AC welding process with activated cap-shaping function" is not
necessary if there is already a sufficiently large cap at the tip of the electrode.
Press the "Gas test" button
Set the desired shielding gas flow rate
The automatic cap-shaping function
ensures that the optimum electrode tip
shape is formed automatically during the
welding start-up. A separate cap-shaping
operation on a test piece is no longer
necessary.
Important! No further cap-shaping is
needed at the next welding start-up. After
the cap-shaping function has been perfor-
med once, it is deactivated for every
subsequent welding start-up.
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