Sin ttulo de diapositiva

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KNOWLEDGE BASED DISTRIBUTED PRODUCT DESIGN AND
MANUFACTURING
EU Asia Link Project (ASI/B7-301/98/679-023) Web
-Enabled Collaboration in Intelligent Design and
Manufacturing Postgraduate School, 5th to 12th
January 2006, Harbin, P.R. China
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Introduction

• Currently most of Design and Manufacturing
  management systems work with local and static
  databases, and do not involve knowledge from
  whole value chain.
• Distributed Design and Manufacturing becoming
  usual in a globalised world Platforms needed
  co-ordinating geographically dispersed designers
  and manufacturers.
• Application developed based on product/process
  knowledge for distributed product design and
  manufacturing with dynamic database.

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System architecture
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PDM - Dynamic database

• Product Data Management
• JAVA Application for MS Windows performing basic
  PDM features
• Centralizes distributed product design and
  manufacturing process
• Dynamic Database
• MS Access databases storing product and process
  information

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PDM main features

• Management of assembly structure, classification
  of parts, as components of an assembly, and
  related documents.
• Creation of new projects and subprojects related.
• Management of the information related to
  documents name, type, project, description,
  owner, revision, date, etc.
• Product lifecycle control, considering different
  states for the documents (design, manufacturing,
  pending revision, obsolete, etc).
• File access, reading and writing permissions for
  external users with the knowledge database in
  the server.

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Assembly data
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Part Data
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Document Data
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Dynamic Database

• Product information Assembly structure,
  information related to assembly, parts and
  documents.
• Process information Manufacturing process,
  Design rules and other process parameters.
• Permissions for reading and
• writing managed by PDM
• application.
• Based on MS Access.

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Knowledge Based Engineering

• Knowledge-Based systems allow companies capture
  and reuse knowledge, and deal with product
  engineering design, manufacturing, cost
  estimations, best practices, legal issues, etc.
• KBE module developed focused on manufacturing
  process parameters to be applied into product
  design. Manufacturing remote knowledge
  automatically applied by designers.

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KBE module developed

• Main features
• Integrated with PDM Dynamic Database.
• KBE module developed for Forging process.
• Forging design rules automatically applied by
  remote designers for several rotational families
  (flash land, preform volume, draft angles, convex
  radius).

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Forging design rules
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Process and Geometric parameters
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Knowledge Based Automatic Design

• Design rules parameters defined by manufacturer
  are automatically applied by designers.
• API must be developed for each specific CAD
  package considered (SolidWorks).
• Geometry CAD template automatically updated with
  remote manufacturing rules parameters.

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Knowledge Based Automatic Design

• SolidWorks geometry template for family 2

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Conclusions

• Collaborative design and manufacturing process,
  applying remote knowledge from manufacturer
  into the design stage.
• Dynamic database incorporated where authorised
  users are able to modify/update product and
  process information.

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Current and Future Work

• Approaches for detection of product/process
  problems. Classical approaches (FMEA), innovative
  approaches (AFD-TRIZ).
• Other manufacturing processes to be considered,
  developing specific KBE modules (e.g. Parallel
  Kinematic Machine).
• Real case study based in PKM process in
  collaboration with HIT.