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Tips and T
Tool Design
chniques Series
ption
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2
Topics
Before You Start: Set Up anRecommendations
Geometry CreationRecommendations
About Family Table Molds
Using Cutout and MergeFunctions to Simplfy Mold
© 2003 PTC
esign
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Before You Start: SeRecommendations
© 2003 PTC
t Up and
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Prep: Plan Your Top Level M► Mold Layout - (.asm)
Cavity assemblies arepopulated in the top level moldassembly using Mold Layout
Mold bases, IMM, and othercomponents also assembled at
top level mold assembly
Ejector pins, waterlines,runners, etc. are created at toplevel mold assembly
© 2003 PTC
ld - Assembly► Application
Example Top Level MoldStructure
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Prep: Plan Your Mold CavityManufacturing► Mold - (.mfg
Ref Parts and Work pieces
Al l Parting Sur faces and/or Volumes
needed for splitting
Trim occurs automatically in split
Splits:
Note: First Split is 2 Volume
all wkpcs and the rest are 1
volume removed from the
“ T”, or temporary volume
Extracts: Use start parts
© 2003 PTC
esign -)
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Prep: Helpful Config.pro Setti
enable_absolute_accuracy
•If yes, all components createdmodel absolute accuracy
•Only works at time of creation
accuracy_lower_bound n
•Must be set to a value low enorelative accuracy desired (ex:
pro_catalog_dir path
mold_layout_origin_name n
•Specifies the mold csys that thautomatically; does not create
pro_library_dir path to m
© 2003 PTC
gs
yes
during mold session will be set to design
mber
ugh for highest absolute accuracy or.0000001)
ame
Cavity Layout will referencecsys
ldbase library
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Prep: Helpful Config.pro Setti
mold_vol_surf_no_auto_rollbac
•If set to no, PS and Volume
•Only works at time of PS or
mdl_tree_cfg_file
hat always shows features and mold
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Prep: Template Models and
"Startpart" for Extracts (.prt)
•Datums, views, csys, paramet
Drawing template for Core and Cavi
•Core and Cavity drawing with
Assembly for Top Level Mold Asse
•Same info as Mold Model
Drawing for Top Level Assembly (.
•Parameters, BOM, etc - copy it
Customized Mold Bases (.asm) and
© 2003 PTC
rawings You Should Create
rs
ty (.drw)
iews, params, notes
bly (.asm)
rw)
with Top Level Mold Assembly
Catalogs
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Geometry Creation
© 2003 PTC
ecommendations
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Create Parting Geometry - G
Create Parting Surfs and/or Moldused as parting geometry
Tip: CREATE SIMPLE PARTING S
•No need to copy surfaces of the rcopying in surfs will result in an u
complicated and non-robust parti
•Use Split “Classify” for creating th
•Use Skirt Parting Surface to creatstyle parting surface if needed
Libraries of mold UDF’s can be usgeometry such as sl iders, core piicons can be created for these ap
“ Same Model” option for ref partreference patterns for geometry s
© 2003 PTC
neral Practices
olumes that wil l be
RFACES
ference model - necessarily
g surface
detailed geometry
the “Swiss Cheese”
ed for special inserts, etc. - customlications
llows user toch as core pins
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Gap de
Parting Line - Silhouette Curv
Benefit : Rapidly deal withanomalies found along theparting line
Finds, highlights and
manipulates theendpoints of curves
Allows creation ofgeometry that is easierto manufacture
© 2003 PTC
Silhouette Curve Dialog w/ Gap Closure
ected Gap closed to
upper point
Gap Detection and Repair
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Parting Line - Silhouette CurvSlides
Benefit: "Slides" optionautomatically compensates forundercut(s) during SilhouetteCurve creation
Interprets volumes and/orcomponents used as slidesand creates correct partinglines
Intelligent: automatically
excludes unnecessaryedges from parting line
© 2003 PTC
Automatic Interpretation of
Silhouette Curve Dialog w/ Slide Interpretation
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Skirt Surface Extension Direc
Benefit : Rapid creation of amore flexible and customizableautomatic Skirt parting surface
Extension direction arrows
automatically display atvertices and selected points
Determine the direction inwhich surface patches wil l beextended by selecting edges,planes and/or csys
© 2003 PTC
ion Control
Skirt
Dialog:
Extension
Control
Auto Extension Direct ion Arrows
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Automatically Split the Workpi
Split feature automaticallycalculates and createscomplicated impressiongeometry based on partinggeometry
Trapped “ islands” of geometrywil l be handled by SplitClassification
The final split wil l create coreand cavity volumes
© 2003 PTC
ece to Create Inserts
plitt ing with Classification
of “ Leftover” Geometry
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Splitting Wizard - Diagnoses
Benefit : Diagnoses andsuggests solutions if splitfails
Detects and highlights
“ Holes” and “ Gaps” inparting geometry
Includes ability to saveintersection curves as afeature for further analysis
If split fails, use “ Item Info”in the recovery menu
UI t
Cur
© 2003 PTC
plitting Problems
Save Split Intersection
ves
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Create First Split to Create TVolume, All Workpiece
First split creates 2 volumes -“ T” and some other volume(I.e. core pin)
“ T” volume will be reused forone volume splits
Islands of geometry will behandled by split classification -no need for complicatedparting geometry
© 2003 PTC
mporary “T” Volume - 2
First Split Creates “ T” Volume
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One Volume Splits for Rest of
Continue to performone volume splits removingmaterial from the “ T” volume
If split failure occurs, checkthat the parting geometry is
valid
If split failure persiststry resetting the absoluteaccuracy of all models,including the mold, to design
model absolute accuracy
© 2003 PTC
Cavity Geometry
Continue Splitting
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Final Split Creates the Final
The final split create the finalvolume
In this way, no extra volumesare created
© 2003 PTC
olume
Split Core and Cavity
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Automatically Create Insert P
“ Create Mold Component”dialog enables the automaticcreation and renaming of moldinsert parts and use of “ startpart” templates
© 2003 PTC
rts
Extract Dialog
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Clean Up and Verification of
Use the Blank/Unblankfunctionality to clean up thedisplay of parting surfs,volumes and components -capable of reverse blanking to
select i tems on the screen thatare currently blanked
Verify the design of cavityusing Mold Opening
© 2003 PTC
old Opening
Blank/Unblank Dialog
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Mold Features in Part Mode
Benefit: Allowscreation of moldfeatures such asSilhouette Curve,Waterline and
Runner in Partmode during amold session
© 2003 PTC
I for Mold Features in Part
Mode
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Creating A Fami
© 2003 PTC
ly Table Mold
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Creating A Family Table Mold
When to Use It: Make a Family Tmodel variations through Famil
Benefit: Allows family tabled de
Design Mod© 2003 PTC
able mold when you have designTable
ign models to be used
l is Different
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Creating A Family Table Mold
Family Table Hierarchy
Different Level
Tabl© 2003 PTC
s of Family
s
Model Tree
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Variable Cav
Using Family Ta
© 2003 PTC
ity Layout:
le Substitution
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Variable Cavity Layout: Using
Family Table Subst itution Using“ Variable” Cavity Layout
Reasons to use Variableinclude:
•pattern dimensional difference
•core/cavity/slider is differentdue to waterline, runner, etc.cuts
•design model variations
“ Variable” Cavity Layoutpermits substitution of familytable assembl ies
Family table mold (.mfg) mustbe built prior to substiturion
© 2003 PTC
Family Table Substitution
Family Table
Substitution Using
Variable
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Techniques for
Plates are the
© 2003 PTC
hen the A and B
ore and Cavity
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Technique When A&B Plates
“ CutOut and then Merge” TechniquCore and Cavity
Benefit: User only has to deal withhe can CutOut and Merge
Use workpiece to make the
Component ► Advanced ► Cu
Merge may require accuracy ch
◄C
Me
An
© 2003 PTC
are the Core and Cavity
e for When A & B Plates are the Actual
a single Ref Part per cavity and then
out
ange
tOut
ge►
then
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Format Package Notes
CATIA® ATB Inter-facefor CATIA® II
Does not rCSG histor(Advanced
DESKTOP
Foundation Requires Pfile
ICEM Foundation Requires I
CADDS5
Foundation Does not rcurrently
CDRS Foundation Does not r
Direct Translation with AssociBus (ATB)
Import other formats directly int
Modify in Pro/ENGINEER
Export directly back to other forthe native system
© 2003 PTC
quire CATIA®. Associative drafting andsupport planned for release 2001
Migration Extension – AMX)
ro/DESKTOP to create an intermediate
EM to create an intermediate file
quire CADDS 5. Available UNIX only
quire CDRS
tivity: Associative Topology
Pro/ENGINEER
mat so changes are reflected on
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Format Package Notes
MEDUSA Foundation 3D AS
PDGS Foundation Does n
CADAM® Foundation
AUTOCAD®
DXF/DWG
Foundation DXF suDXF wil
ACIS (SAT) Foundation Import
Other non-ATB Direct Transla
Import other formats directly intdistortion
© 2003 PTC
II Format
t require PDGS
pport up to AUTOCAD 2000®. 3Dl follow soon
001, Export will follow soon
tions
Pro/ENGINEER with no data
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Repairing Imported Data: Im
Import Data Doctor Option (DDO) algeometric data more easily
It provides:
Tools for automating the clean
Constraint Manager for constr
Ability to collapse surfaces ma
All of these tools dramaticmanually clean up an imported or ldoes not require users to have any
© 2003 PTC
ort Data Doctor Option
lows users to repair imported
p process
ining geometry so it won’t be modified
in Pro/SURFACE
lly reduce the time required togacy model and Import Data Doctorexperience to achieve good results
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Format Package Notes
IGES Foundation
STEP Foundation AP202,
SET Foundation
VDA FoundationECAD Foundation IDF 2.0,
SLA (STL) Foundation
CGM Foundation MILSP
COSMOS Foundation
PATRAN® Foundation
SUPERTAB™ Foundation
JPEG Foundation
TIFF Foundation
RENDER Foundation
Industry Standard Translation
© 2003 PTC
AP203, AP214
3.0
C MIL-D-28003A
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Industry Standard Translation
Format Package Notes
VRML Foundation
INVENTOR Foundation
© 2003 PTC
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Format What to use
CATIA® ATB Interface
UNIGRAPHICS andPARASOLID kernels
Import the file iPro/ENGINEE
I-DEAS MastersSeries Import the file iPro/ENGINEE
ACIS kernels Import .SAT fil
Referencing the information from the sales guides and internal sources.
Tips: Best Direct Translation2001
© 2003 PTC
or CATIA® II
nto Pro/DESKTOP and then export to
nto ICEM and then into
s directly into Pro/ENGINEER
ther CAD Formats as of
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ATB Interface by 2I-DEAS
Direct Import by 20PARASOLID
kernels
ATB Interface by 2UGMechanismFormat
ACIS Export by 2002
Future Direction
03
2
03