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Application of NX Wave
Technology in Die Design
Process
Presenter: Misha Bosnjakovic
Company: CADmech Design Inc.
www.cadmech.com
CADmech Design Inc. Your success; there is no compromise
Application of NX Wave
Technology in Die Design Process
Seamless integration of part design information into tooling
design process
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CADmech Design Inc. Your success; there is no compromise
Presentation Layout
•Overview of wave
•Demonstration of using wave illustrated
through a case study, “COOL RIM”
•Best practices
•Questions & Answers
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CADmech Design Inc. Your success; there is no compromise
We’ll talk about
Application of WAVE functionality:
create and control upstream flow of design
information
“do things right from the beginning”
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CADmech Design Inc. Your success; there is no compromise
Our case study – ‘COOL RIM’
Techniques for die-cast tooling design process:
applied to any popular molding technology
Integrates cool rim part design into die components
Demonstrates propagation of part geometry changes to
die assembly
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CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – WAVE Facts
WAVE – UG/NX technology of
linking inter-part geometry
creation of inter-part dependencies
Works on part topology level
Wave Geometry Linker
Requires assembly environment
does not require WAVE control
license
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CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – Flow of Information
Vertical WAVE Linking (in series)
Machined
Part
Casting
Part
Cavity Trim
Part
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CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – Machined Part
Step 1: “as machined” model
Development of end product (as machined)
Integration of casting design intent
For effective design
‘clean geometry’ is essential
Proper file organization
Modeling discipline and diligence
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CADmech Design Inc. Your success; there is no compromise
www.cadmech.com
CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – Flow of Information
Vertical WAVE Linking (in series)
Machined
Part
Casting
Part
Cavity Trim
Part
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CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – Casting Part
Step 2: ”As cast” model
Vertical wave link in time stamp
Additional casting features:
shut-offs added to casting model
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CADmech Design Inc. Your success; there is no compromise
www.cadmech.com
CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – Flow of Information
Vertical WAVE Linking (in series)
Machined
Part
Casting
Part
Cavity Trim
Part
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CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – Cavity Trim Part
Step 3: Cavity Trim Part
Vertical wave link to casting model
Apply shrinkage factor for cast material
(scale feature)
Extracted cavity regions – along parting line
divisions
Tooling seal-off faces developed and
attached to appropriate cavity regions to
form unique cavity trimming tools
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CADmech Design Inc. Your success; there is no compromise
Trim Sheets
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CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – Flow of Information
Horizontal WAVE Linking (in parallel)
Die Top Level Assembly
Die Component
Cover
Insert
Ejector
Insert
Slide#1
Cavity Trim Part
Slide#2
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CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – Die Component
Startup die component model:
extruded block controlled by sketch
Add to top level die assembly:
waved into each cavity component
horizontal wave link
Envelope
of die
components
Overall die dimensions:
controlled from single file
die component
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CADmech Design Inc. Your success; there is no compromise
www.cadmech.com
CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – Cover Insert
Step#1 WAVE linked bodies
Step#2 Cavity trim operation
Step#3 Final component
Use trim sheet to
create the ‘cover insert’
from the original block
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CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – Ejector Insert
Step#1 WAVE linked bodies
Step#2 Cavity trim operation
Step#3 Final component
Use trim sheet to create
the ‘ejector insert’ from
the original block
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CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – Slide#1
Step#1 WAVE linked bodies
Step#2 Cavity trim operation
Step#3 Final component
Use trim sheet to create
the ‘slide#1’ from the
original block
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CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – Slide#2
Step#1 WAVE linked bodies
Step#2 Cavity trim operation
Step#3 Final component
Use trim sheet to create
the ‘slide#2’ from the
original block
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CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – Die Top Level Assembly
Final step in design integration process
From part model level to tool assembly level
Part design changes will propagate to tooling
components through top level die assembly
model
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CADmech Design Inc. Your success; there is no compromise
www.cadmech.com
CADmech Design Inc. Your success; there is no compromise
www.cadmech.com
CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – How does it work?
FROM
TO
Change
Propagation
UPDATED ‘COVER
INSERT`
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CADmech Design Inc. Your success; there is no compromise
www.cadmech.com
CADmech Design Inc. Your success; there is no compromise
‘COOL RIM’ – How does it work?
FROM
TO
Change
Propagation
UPDATED ‘COVER
INSERT`
www.cadmech.com
CADmech Design Inc. Your success; there is no compromise
www.cadmech.com
CADmech Design Inc. Your success; there is no compromise
What is important for successful design?
File organization: keep it simple and
straightforward
Proper and efficient use of modeling
techniques
Efficient WAVE management
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CADmech Design Inc. Your success; there is no compromise
GOOD Design Practices
File Organization:
Layer structure / category naming
Modeling tree structure –
feature sequence/grouping/naming
Expression/formula definition
Defined geometry reference sets
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CADmech Design Inc. Your success; there is no compromise
GOOD Design Practices
Modeling Techniques:
Fixed datums and primitives: as startup features only
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CADmech Design Inc. Your success; there is no compromise
GOOD Design Practices
Modeling Techniques:
Fixed datums and primitives: as startup features only
Don’t be afraid of using sketches: avoid using nonparametric “flying” wireframe
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CADmech Design Inc. Your success; there is no compromise
GOOD Design Practices
Modeling Techniques:
Fixed datums and primitives: as startup features only
Don’t be afraid of using sketches: avoid using nonparametric “flying” wireframe
Don’t multiply features: especially datums
Don’t patch model by adding features over existing ones
Don’t build deep model dependencies
Always check validity of model geometry
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CADmech Design Inc. Your success; there is no compromise
GOOD Design Practices
Upfront planning investment into model and file organization
and diligence in keeping model files “clean & lean” will bring
multiple benefits to seamless flow of design information
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CADmech Design Inc. Your success; there is no compromise
WAVE Management
Efficient WAVE management without WAVE Control License
Vertical (serial) WAVE linking
Horizontal (parallel) WAVE linking
Managing WAVE links - breaking, reattaching, up
dating links
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CADmech Design Inc. Your success; there is no compromise
WAVE Geometry Linker – What are the benefits?
Full parametric integration of part design data into tooling
design process
Flexible management of linking process
“Geometry safe” method
Improved performance (smaller individual files)
No additional license required
Helps even with “challenging part geometry”
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CADmech Design Inc. Your success; there is no compromise
Problem Geometry – How to deal with it?
Topology problems must be fixed – clean topology is a
MUST for math data integrity
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CADmech Design Inc. Your success; there is no compromise
Problem Geometry – How to deal with it?
Topology problems must be fixed – clean topology is a
MUST for math data integrity
Well defined and simplified parting lines
With clean part geometry, even non-parametric data
integration can proceed
WAVE management is critical to preserve tooling data
integrity – breaking and re-establishing WAVE links, delayed
updates
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CADmech Design Inc. Your success; there is no compromise
QUESTIONS AND ANSWERS
Contact us:
Presenter:
Misha Bosnjakovic ([email protected])
905.474.2577 x.224
General Inquiries:
Jason MacFarlane ([email protected])
905.474.2577 x.222
www.cadmech.com
CADmech Design Inc. Your success; there is no compromise
THANK YOU
www.cadmech.com
CADmech Design Inc. Your success; there is no compromise
Mechanical Design
commitment
Project Engineering
Flexibility
Training
Outstanding results
CAD Expertise
Staffing
Knowledge
www.cadmech.com