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This task shows you how to associate an APT
file to an NC Mill program using the NC Manufacturing Review workbench.
This association consists in creating a tool path for each operation by
extracting the necessary information from the APT file. This allows
verification and simulation of these operations. |
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No sample is delivered for this scenario: you
can use any CATProduct that includes one or more V4 models with NC Mill
sets. Also you must have an APT source file generated by the CATNC utility
for the imported NC Mill program. Note that CATNC must be executed with
the PPRINT processing option set to PPRINT (that is, *PPR or *PPRINT
keyword set to 1).
This is to allow identifying the part of the tool path corresponding to
each operation and so to be able to define the tool path of each operation.
Identification is processed by means of the PPRINT OPERATION NUMBER
statements. |
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1. |
Select the V4 program in the
specification tree. |
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2. |
Select Associate Output NC File to a Program
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The dialog box for selecting the NC file appears. |
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3. |
Select the NC file to associate to the program.
The tree is updated with tool paths defined on the machining operations. |
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- The machining operations with Computed status have their own
tool path which can be replayed and, if a stock geometry is linked to the
Part Operation, simulated.
- APT association must be done in a CATIA session working in the same
units as those in which APT was generated.
- The APT association can only be done on V4 type programs.
- The APT association can only be done whenever there is a PPRINT
OPERATION NUMBER statement and there are as many entities in the program
as PPRINT OPERATION NUMBER statements in the APT (except the first one,
which defines CATIA0).
- The APT association may be done if there are COPY and TRACUT type
entities present, and Tool Path Replay is available for these entities.
- A 'continue' statement followed by a PPRINT OPERATION NUMBER
statement may present a problem. Example :
PPRINT OPERATION NUMBER : 6
PPRINT *** TOOL NO SF8-1093-10 6.00DIA. .125CRAD. .625LOC. 4.500SL$
PPRINT OPERATION NUMBER : 7
PPRINT ***************************************************************
You should remove all unnecessary 'continue' statements before APT
association.
- APT association is not possible for files containing OUTPUT PROFILE,
TOOL FLANK OUTPUT, TOOL CENTER OUTPUT, or NURBS statements.
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