3-D Model Based Manufacturing and Inspection

3-D Model Based Manufacturing and Inspection

Brian Pippenger August 2, 2012 © 2012 Rolls-Royce Corporation The information in this document is the property of Rolls-Royce Corporation and may not be copied or communicated to a third party, or used for any purpose other than that for which it is supplied without the express written consent of RollsRoyce Corporation. This information is given in good faith based upon the latest information available to Rolls-Royce Corporation, no warranty or representation is given concerning such information, which must not be taken as establishing any contractual or other commitment binding upon Rolls-Royce Corporation or any of its subsidiary or associated companies.

Overview  Why MBD ?  Risk  Benefits  Future of MBD-”Smart Models”  Quality Information Framework-QIF  Summary and conclusion  Questions\Comments

Why model based definition ?  Move away from 2-D paper drawings  Smart 3-D Models PMI  GD&T 

 Aerospace, military, automotive  NIST developing QIF with DMSC, manufactures and software vendors

Risks to MBD implementation  Culture of organization 

Documentation

 FAA rules and regulations 

Advisory circular No: 21-48 - Used to describe electronic modeling

system - If used must be in its entirety

 Adequate replacement for 2-D paper prints

Concerns when developing an MBD environment  Data accessibility  Data content  Data presentation to standards  Data management  Data security  Data retention

Many benefits to MBD  Viewed in a common platform 

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 Keep cost down for OEM suppliers and vendors  Fully annotated model  Defining a common methodology for CAD techniques across internal and external supply chain

Levels of annotation  As model develops definition becomes rich with data  Will become the standard  2-D paper prints no longer needed 

Can be made for convenience during transition

 Annotations to models added in steps

Level 1-minimal annotation  Envelope dimensions (overall boundary dimensions of the part)  “Block” or profile tolerance as applied to the entire part  Material and finish requirements  Title block information

Level 2-partial annotation  Envelope dimensions  “Block” or profile tolerance  Material and finish requirements  Title block information  Non-standard dimensions  Site map  Critical notes

Level 3-full annotation  Envelope dimensions  “Block” or profile tolerance  Material and finish requirements  Title block information  Full dimensions  Site map  Full notes  Auxiliary views

MBD working environment  Large amount of engineering knowledge captured in model  Complete annotated model avoids ambiguities  Reverse engineering of legacy products  Manufacturing\Inspection programming saving will show significant benefits

Smart models  All inclusive data set of product  Programming speed increased  Interoperability standards being developed  Associativity of all entities

Quality Information Framework-QIF  DMSC & NIST helping to develop standard  Holistic and integrated set of information models  QIF development of standards Quality Measurement Plans-QMPlans  Quality Measurement Rules-QMRules  Quality Measurement Results-QMResults 

QIF development  Ensure interoperability  Any information for manufacture or inspection  Semantic connections  Provide a platform that is easy for everyone to access and understand

Summary  Many transitioning to MBD  Collaboration between operations, engineering, and supply chain  Reduces labor costs, quality losses  Enterprise agility  Lower product costs  Culture changes top down  Model is final normative of part definition

Conclusion  Best practices developed and followed  All in supply chain need to be on board  Communication of intent is vital No surprises  Every effort to help all involved 

 Correct path for future business  Reliable and accessible data for supply chain

Question\Comments

Thank You