NC Express FPL Manual - Finn-Power International, Inc.

Temporary High Temperature Area - This option is a
solution to optimize the heat dissipation during the
cutting process of thick materials.
With these parameters, which are different
for each kind
of material and thickness, we are able to minimize the
influence which the heating up of the material has on the
cutting process.
When
we cut out a contour with the laser beam, we know
that the material is warming up during this process.
(powerpoint Heat Dissipation).
The area that is warming up around
this contour we call :
THTA (Temporary High Temperature Area).
To have an optimal cutting process this area and
its boundaries are unaccesable
for any cutting operations until it has cooled down.
We can do this already when optimising the cycle from
the nesting but these
parameters will calculate how long the area around the contour is overheated.
Delay Before Growth – (sec) This
parameter tells us when this area will start to
heat up. In most cases this parameter will be
zero because at the moment we activate the
beam and start to cut the material, the
material is already warming up.
Offset
Growth Speed – (mm/sec) This is
the speed with which the Temporary High
Temperature Area grows.This depends on
the kind of material and the thickness.
Maximum
Offset Size – (mm) this is the max. distance around the contour that
will warm up during the cutting. This value will determine the maximum size of
the Temporary High Temperature Area.
Once the boundaries of this area have been
reached the material will start to cool
down
Delay
Before Fall – (sec) This parameter will tell us when the temporary high
temperature area will start to shrink, to cool down.
Offset Fall Speed – (mm/sec) This is the speed with which the warmed up area
shrinks.
This parameter
allows us to calculate how long it will take until the area around
the cut part is again safe for usage.
Max
Delay in Post – (sec) When jumping around from contour to contour to
avoid these High Temperature Areas there can be a moment where we have to
wait until everything is cooled down.This parameter allows us to set the
maximum waiting time.
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