Introduction to Digital Manufacturing

1
Introduction to Digital Manufacturing
Part 1 An Overview of the Digital Manufacturing
Vukica Jovanovic Mechanical Engineering
Technology
2
Digital Manufacturing Define Basic Parts

• Unit 3

3
CAD Computer-Aided Design

• The use of computer technology
• to aid in the design of a product
• 2D vector base drafting systems
• 3D solid and surface modelers

4
CAD Software

• Animation
• AutoCAD Add-ons Mechanical
• Parts and Details
• MCAD Programs
• Sheet Metal Design
• Specialized MCAD Programs
• Surface Modeling
• Tolerance Analysis
• Viewers
• Virtual Prototyping

5
CAM Computer-Aided Manufacturing

• Typical areas of concern
• High Speed Machining streamlining of tool paths
• Multi-function Machining
• 5 Axis Machining

Tool path generation
Mold and Tooling Example
6
CAPP Computer Aided Process Planning

• To prepare
• Detailed set of plans
• Instructions to produce a part
• Begins with
• Engineering drawings
• Specifications
• Parts or material lists
• Forecast of demand
• The results of the planning are
• Routings
• Process plans
• Fabrication assembly drawings

7
Factory Layout Planning

• Creation of layout from 3D models for
• Virtual 3D models sales personnel
• Photo-realistic images or animation
• Potential customers
• BOM basis for price calculations

8
Ergonomics

• Design tasks and work areas
• Maximize the efficiency and quality of employees
  work
• To enhance user safety and comfort
• To improve the ergonomics of product designs

9
Off-line Robot Programming

• Takes place on a computer
• Models of the workcell
• robot, pieces and surroundings
• Reuse of existing CAD data
• The robot programs are verified in simulation
• Errors are corrected

10
Production Process Simulation

• Define problems identify bottlenecks
• Validation of proposed implementations under time
  constraints
• Capacity Planning
• Lead time reduction
• Work in progress reduction

11
Product Lifecycle Management Systems

• The process of managing the entire lifecycle
• From its conception
• Through design and manufacture
• To service and disposal

12
Current Information Model
Source Grieves, M. (2006). Product Lifecycle
Management Driving the Next Generation of Lean
Thinking. New York, McGraw-Hill.
13
PLM Information Model
14
Analysis Software Finite Element Analysis (FEA)

• Computer simulation technique used in engineering
  analysis
• Numerical technique
• Based on an energy principle such as
• The virtual work principle or
• The minimum total potential energy principle

Leading products ANSYS ABAQUS LUSAS LS-DYNA NASTRA
N SAMCEF
15
References

• Answers.com, Ergonomics, Retrieved in Nov. 2007
  from http//www.answers.com/topic/ergonomics?cat
  biz-fin
• BrianKleve.com, CATIA Image Gallery, Retrieved in
  Nov. 2007 from http//www.briankleve.com/gallery.
  htm
• Camelot Robotics, Robot Programming, Retrieved in
  Nov. 2007 from http//www.camelot.dk/Offvson.asp
  x
• Delmia, Process Engineer, 2002, Retrieved in
  Nov. 2007 from http//www.delmia.com/gallery/pdf
  /Process_Engineer.pdf
• Deneb, System Simulation Solutions, Simulation
  Services, (2004), Retrieved in Nov. 2007 from
  http//www.deneb.com.au/simulation-services/defaul
  t.asp
• Grieves, M.W. (2006) Product Lifecycle Management
  Driving the Next Generation of Lean Thinking,
  Retrieved in Nov. 2007 http//corestrategies.com/
  en/docs/casestudies/plm_cross_functional.pdf
• Grieves, M.W. (2006). Product Lifecycle
  Management Driving the Next Generation of Lean
  Thinking. New York, McGraw-Hill.
• igm Robotic Systems, Inc, (2002), Off-Line
  Teaching, Retrieved in Nov. 2007 from
  http//www.igmusa.com/ips.htm
• Kenneth Crow, Computer-Aided Process Planning,
  DRM Associates, 1992, Retrieved in Nov. 2007
  from http//www.npd-solutions.com/capp.html

16
References

• Stark, John (1 edition (August 27, 2004)).
  Product Lifecycle Management 21st century
  Paradigm for Product Realisation (Hardcover).
  Springer.
• Tecnomatix fact sheet, Digital manufacturing for
  automotive suppliers , Retrieved in Nov. 2007
  http//www.ugs.com/en_us/Images/wp_tec_auto_suppli
  er_dig_tcm53-4928.pdf
• Tecnomatix fact sheet, Process Simulate on
  Teamcenter, Retrieved in Nov. 2007
  http//www.ugs.com/en_us/Images/fs_tx_process_simu
  late_tc_tcm53-41021.pdf
• TenLinks, Inc. ,Ultimate CAD Directory, Retrieved
  in Nov. 2007 from http//www.tenlinks.com/CAD
• TenLinks, Inc. ,Ultimate CAD Directory, Retrieved
  in Nov. 2007 from http//www.tenlinks.com/CAD/MCA
  D/products/index.htm
• Vicinay cadenas, S.A., Research and Development
  Engineering, FEM - Finite Element Modeling,
  Retrieved in Nov. 2007 from http//www.vicinayca
  denas.net/en/desarrollo/desarrollo1.asp?idfam37C
  18
• Wikipedia, CAM Computer-Aided Manufacturing,
  Retrieved in Nov. 2007 from http//en.wikipedia.o
  rg/wiki/Computer-aided_manufacturing
• Wikipedia, Finite element analysis, Retrieved in
  Nov. 2007 from http//en.wikipedia.org/wiki/Fin
  ite_element_analysis

17
Acknowledgments
The author wishes to acknowledge the support from
the Workforce Innovation in Regional Economic
Development (WIRED) Opportunity Fund for North
Central Indiana DOL Grant Agreement
HG-15848-07-60 for Development of Integrated
Digital Manufacturing Curriculum.
The author wishes to acknowledge the support from
the National Science Foundation Advanced
Technology Education Program, NSF Grant 0603362
for Midwest Coalition for Comprehensive Design
Education.