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91
EN
Laser hot-wire brazing with RCU 5000i
A: Start of brazing
To obtain good wetting to sidewalls in the brazed join, ensure the following:
-
Focus diameter = Wire di 30%
-
Torch tilt angle is 35° (trailing)
Preconditions for laser hot-wire brazing
Initialise "Gas test"
Select operating mode 3 "Internal pa-
rameter selection"
-
Set operating bit "0" to "1"
-
Set operating bit "1" to "1"
-
Set operating bit "2" to "0"
Select the following parameters via the
RCU 5000i (CC/CV window):
-
welding current
-
Welding voltage
-
Wire speed
Initialise "Welding ON"
Initialise "Wire feed"
Wait for current flow signal ("Arc esta-
blished")
Initialise "Laser ON"
Initialise "Robot start"
Points 3., 4. and 5. describe analogue input signals.
Re. Point 3.:
-
Welding voltage = welding current x welding circuit resistance
(welding circuit resistance depends on the contact tip and filler metal)
-
Value is below 10 V (voltage limitation)
NOTE!
A clearer overview of the program can be obtained by amalgamating all the signals
into one single command in a sub-program (e.
g. "Start of brazing").
IMPORTANT!
Laser hot-wire brazing is a spatter-free process. This means that it is not
absolutely necessary to have an additional fume-extractor. It is sufficient if the crossjet can
be clearly heard working (at an operating pressure of between 0.5 and 1 bar = 7.22 - 14.45
psi).
B: End of brazing
"Stop movement of the robot"
Reset "Wire feed"
Reset "Welding ON"
Initialise "Wire retract"
Initialise "Time-lag" (0.2 s)
Reset "Wire retract"
Initialise "Laser OFF"
Reset "Gas test"
+30 %
100 %
35 °
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Содержание LaserHybrid
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Страница 54: ...54 Gesamtschaltplan Schaltplan ...
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Страница 80: ...80 Mounting the LaserHybrid head in positions C and D 1 Holder m m 5 6 1 3 90 mm m m 5 6 1 3 90 mm 90 mm 1 1 ...
Страница 90: ...90 Re Point 5 0 2 s Time lag is a standard value to prevent the end of the wire burning onto the weld pool ...
Страница 92: ...92 Re Point 5 0 2 s Time lag is a standard value to prevent the end of the wire burning onto the weld pool ...
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