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Part Design Features Recognition
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Part Design
Feature Recognition
CATIA TrainingExercises
Version 5 Release 17September 2006
EDU-CAT-EN-FR1-FX-V5R17
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Part Design Features Recognition
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Table of Contents
Master Exercise: Creating V5 geometry from an isolated solid
Starting p.4
Dress-up Feature p.5
Sketch-based Feature p.10
Boolean Feature p.14
Draft Feature p.17
Features Rework p.20
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Part Design Features Recognition
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Master Exercise Feature Recognition
In this exercise, you will learn how to use the Feature Recognition tool in order to createspecifications and to modify them afterwards.
30 min.
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Part Design Features Recognition
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Starting
Open the “FR1_Exercise_start.CATPart” file
Check that “Solid.2” is active
If not, choose “Define in Work Object” in itscontextual menu to activate it.
In the “Part Design” workbench, click the“Automatic Feature Recognition” icon
A “Feature Recognition” panel will bedisplayed
Check you are in the “Automatic” thumbnail We will see the 2 different ways to recognize
“dress-up features”, automatic or manual; youcan practice both of them.
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Part Design Features Recognition
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Starting
Dress-up Feature – Automatic way
Sketch-based Feature
Boolean Feature
Draft Feature
Features Rework
Master Exercise: Feature Recognition
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Select the 3 types of features, “Holes”, “Fillets”, “Chamfers”
Click Apply
All holes, fillets and chamfers are progressively recognized. A panelindicates the recognition process evolution.
Automatic Way to recognize “Dress-up” Features
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Part Design Features Recognition
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Starting
Dress-up Feature – Manual way
Sketch-based Feature
Boolean Feature
Draft Feature
Features Rework
Master Exercise: Feature Recognition
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Feature Recognition: Dress-up Features (Fillets) 2/2
As the Chain Faces option is on by default,the application includes propagated facesin the selection.
This is why the “Selected Objects” fieldshows three faces, while we selected only
one geometrical face.
All selected faces are highlighted and
numbered in the geometry area too.
Click “Apply” in the panel
We can repeat the same operation with thesymmetrical fillet
We end up with new V5 features in thetree: “EdgeFillet.1” and “EdgeFillet.2”
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Part Design Features Recognition
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Starting
Dress-up Feature
Sketch-based Feature
Boolean Feature
Draft Feature
Features Rework
Master Exercise: Feature Recognition
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Feature Recognition: Sketch-based Features (Groove) 1/3
Select the “Groove” type in the panel
Select the face as shown
Check that “Chain Faces” option is on
This step illustrates how to recognize a groove.
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Feature Recognition: Sketch-based Features (Groove) 2/3
Geometrical information are generatedby objects selection: all selected facesor edges can be identified.
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Feature Recognition: Sketch-based Features (Groove) 3/3
Click “Apply” in the panel
We can repeat the same operation with thesymmetrical groove
We end up with new V5 features in the tree:“Groove.1” and “Groove.2”
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Part Design Features Recognition
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Starting
Dress-up Feature
Sketch-based Feature
Boolean Feature
Draft Feature
Features Rework
Master Exercise: Feature Recognition
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Feature Recognition: Boolean feature 1/2
Select the “Boolean” type in the panel
Select the slot 5 inner faces as shown
This step illustrates a Boolean Feature recognition used:- when the initial geometry is made of complex shapes
- also when the recognition of standard features fails
Because the cavity of this part is not easily identifiable,
we need to use the Boolean option.
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Feature Recognition: Boolean feature 2/2
Click “Apply” in the panel
We can repeat the same operation with the
symmetrical slot
We end up with new boolean features,“Remove.1” and “Remove.2”
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Part Design Features Recognition
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o p y r i g h t D A S S A U L T S Y S T E M E S
Starting
Dress-up Feature
Sketch-based Feature
Boolean Feature
Draft Feature
Features Rework
Master Exercise: Feature Recognition
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Feature Recognition: Draft feature 1/2
Select the “Draft” type in the panel
Select the three faces as shownThis step illustrates how to recognize aconstant angle draft.
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Feature Recognition: Draft feature 2/2
Click “Apply” in the panel
We end up with a new feature “Draft.1”
In case of drafted-filleted features, fillets
have to be recognized before drafts.
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Part Design Features Recognition
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Starting
Dress-up FeatureSketch-based Feature
Boolean Feature
Draft Feature
Features Rework
Master Exercise: Feature Recognition
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Feature Recognition: Features Rework
In “PartBody” contextual menu, select “Define In WorkObject”
This action will activate the PartBody. We will then be ableto visualize the newly created V5 features.
We are now provided with a V5 structure that can be
modified the usual way; for instance:Add a “Smooth Propagation” option to the “Draft”
Change the “Groove” profile by editing the support sketch
Change the “Edge Fillet” value