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| CATAD2
Trim
Line / Drawn Blank Profile Development
One of the main tasks of the
engineer designing a deep drawing tool is to construct the addendum
surfaces and to lay out the geometry of the final part onto these
addendum surfaces. CATAD2 helps to reduce time and cost spent on this
operation significantly. CATAD2 takes over automatically what the
engineer normally would have to do manually: Establishing cutting
planes, intersecting those planes with the geometry of the final part
and the addendum geometry, calculate length with respect to neutral
fibre, creation of a point on the addendum for each cutting plane and
finally creating the trim curve from the sequence of these points.
The engineer only needs to select the part surfaces and the
addendum surfaces, even if these are not trimmed or filleted. The
cutting planes in CATAD2 are determined by a spine curve. The
computation can be done along the whole spine curve or on user defined
planes only.
DRAWN BLANK PROFILE LINE
DEVELOPMENT:
CATAD2 can also be used on classical deep
drawn parts. It uses the complete geometry of the part under the punch
and additional blankholder geometry. The engineer has to identify the
draw direction and a separation curve on the part under the punch
identifying the curve along which the metal will start to 'stick' to
the punch during the drawing operation. For profiles like a centre
pillar the line is the highest point of the profile on each section. A
profile option allows the complete computation of the part size before
the drawing operation in a single run. The size of the drawn blank can
be computed from this line and the exterior line of the blank holder.
CATAD2 is a very user friendly tool. All
definitions made by the user can in a transparent way be stored inside
the CATIA model as so called 'application sets'. CATAD2 comes with
powerful tools to analyse, modify and re-compute these sets. They allow
a full transparency of the process to others or can be recomputed after
modification. The computation can also be started in a test mode, where
all curves used in the computation will be kept in the end.
Because of the ability for engineers to define the number of
computation planes the results are more accurate to the ones engineers
normally would generate by doing manual operations.
The time savings for using CATAD2 are about 70 to 80 percent compared
to interactively defining the trim line using standard CATIA functions.
To download documentation,
binaries or brochures for this or any other TDE Product, please visit
our Downloads Area.
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