© Lampert Werktechnik GmbH
2013
14
7.3 WELDING WITH FOOT SWITCH
(optional accessory)
With the PUK D2 switched off, connect the foot switch to
the socket (4) marked with the blue foot switch symbol on
the rear of the device. Switch the device on, confirm the
safety prompt by pressing an arbitrary button and wait for
the self-test to conclude. The device is now ready for
operation.
THE FOOT SWITCH CAN BE ACTIVATED BY PRESSING AND HOLDING IT (APPROX. 2 SEC.). A BLUE DOT
APPEARS IN THE DISPLAY.
Connect
a
metallic
blank section of the
workpiece
with
the
contact clamp. Now
lightly touch the workpiece with the electrode, so that the
shielding gas flows out. If the foot switch is operated in this
mode, the welding process will begin automatically as
described in chapter 7.1.
PRESSING AND HOLDING THE FOOT SWITCH (APPROX. 2 SEC.) (WITHOUT TOUCHING A WORKPIECE) CAUSES
IT TO BE DEACTIVATED AND THE BLUE DOT ON THE DISPLAY DISAPPEARS.
7.3.1 RETENTION WELDING WITH THE FOOT SWITCH
Please switch off the machine prior to
exchanging the electrodes or the adapter.
This prevents uncontrolled triggering of the
welding process.
Remove the electrodes, replace the clamping nut and
chuck with the pin welding adapter. Work without the
clamping nut and argon nozzle. Then select the diameter
of the adapter being used, by pressing the respective
button on the display of the PUK D2. Then connect the
workpiece to an area of bare metal, using a connection
terminal. Insert a pin of the appropriate diameter into the
pin welding adapter.
•
The 1st light touch of the workpiece pulls back
the pin welding adapter.
•
With the 2nd light touch, the eye protection
system (shutter) in the SM D2 microscope can
be clearly seen flickering.
Pressing the foot switch at this stage triggers
the welding process.
A good welded connection is indicated by a clearly
audible welding noise. If the process passes off without
making a noise, then the connection is presumably of
insufficient strength. Blasting or roughening polished
welding points before welding may have a positive effect
on welding behaviour for pin welding. No shielding gas
flows during the whole process.
PRESSING AND HOLDING THE FOOT SWITCH (APPROX. 2 SEC.) (WITHOUT TOUCHING A WORKPIECE) CAUSES
IT TO BE DEACTIVATED AND THE BLUE DOT ON THE DISPLAY DISAPPEARS
7.3.2. FIXATION WELDING
THE BLUE CONNECTION CABLE MAY ONLY BE CONNECTED AFTER THE MODE HAS BEEN ACTIVATED.
AFTER WELDING IS COMPLETE, IT IS VITAL THAT THIS CABLE IS REMOVED AGAIN, BEFORE SWITCHING
TO ANOTHER MODE, IN ORDER TO AVOID FAULTY WELDS!
Connect both of the workpieces which are to be fixed at
an area of bare metal with a connection terminal, one to
the blue one and the other to the black. When the two
parts are touching, the welding process can be triggered,
using the foot switch. The hand piece is not used during
this process.
The required welding power is determined by the
strength of the connection desired as well as the
workpiece geometry. The welding time setting is of
secondary importance in this mode, and can only be
varied to a very limited extent.
AFTER WELDING HAS BEEN SUCCESSFULLY COMPLETED, AND BEFORE SWITCHING TO ANOTHER
USER LEVEL, PLEASE REMOVE THE BLUE CONNECTION CABLE!
NOTE: DURING FIXATION WELDING, THE FOOT SWITCH IS ALWAYS ACTIVE, AND CANNOT BE DEACTIVATED!
