6 Graphical user interface
Issue EN 2022/05 PUK 6 Operating manual
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The welding power controls the size and intensity of the welding spots. The
greater the power selected, the more energy the device uses for welding
and the larger the weld spot. With very thin materials an excessive power
level can damage the workpiece. If the material behaviour is unknown, it is
therefore recommended to start with a welding power of 20 % and slowly
work up to higher powers. To make welding with the PUK 6 easier, a value
range for the welding power is marked blue in the display as a recommen-
dation for each material-geometry combination.
TIP:
For silver alloys, it is NOT recommended to set the welding
power higher than 50 %, otherwise liquefied material may be
thrown out of the welding spot (spattering)
TIP:
Welding power of more than 70 % is only recommended in
special material and geometry-related applications. Otherwise,
there is a risk of inhomogeneous welds. The use of higher
welding powers in the red range is therefore only recom-
mended for experienced users.
TIP:
For fine welding, it is recommended to start with a lower weld-
ing power of approx. 20 % with a very short pulse duration and
to work up to the correct value by small changes of the weld-
ing parameters.
The pulse duration determines how long (in milliseconds) the welding en-
ergy acts. The longer the pulse duration selected, the longer and deeper the
energy impact on the workpiece. At the same time, this also results in a
higher heat generation.
TIP:
With very thin materials or wires, it is advisable to select a
shorter pulse duration.
TIP:
When working close to precious gemstones, pearls or other
heat-sensitive materials, a pulse duration of less than 4 ms is
recommended.
TIP:
With many silver alloys or other conductive metals a longer
pulse duration can be advantageous in order to avoid heat
cracks.
Welding power
Pulse duration