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Introduction to Digital Manufacturing. Part 1: An Overview of the Digital Manufacturing. Vukica Jovanovic Mechanical Engineering Technology. Digital Manufacturing: Define Basic Parts. Unit 3. CAD: Computer-Aided Design. The use of computer technology to aid in the design of a product

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Introduction to digital manufacturing
Introduction to Digital Manufacturing

Part 1: An Overview of the Digital Manufacturing

Vukica Jovanovic

Mechanical Engineering Technology


Digital manufacturing define basic parts

Digital Manufacturing: DefineBasic Parts

Unit 3


Cad computer aided design
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


Cad software
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


Cam computer aided manufacturing
CAM: Computer-Aided Manufacturing

  • Typical areas of concern:

    • High Speed Machining: streamlining of tool paths

    • Multi-function Machining

    • 5 Axis Machining

Mold and Tooling Example

Tool path generation


Capp computer aided process planning
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


Factory layout planning
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


Ergonomics
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


Off line robot programming
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


Production process simulation
Production Process Simulation

  • Define problems & identify bottlenecks

  • Validation of proposed implementations under time constraints

  • Capacity Planning

  • Lead time reduction

  • Work in progress reduction


Product lifecycle management systems
Product Lifecycle Management Systems

  • The process of managing the entire lifecycle

    • From its conception

    • Through design and manufacture

    • To service and disposal


Current information model
Current Information Model

Source: Grieves, M. (2006). Product Lifecycle Management: Driving the Next Generation of Lean Thinking. New York, McGraw-Hill.



Analysis software finite element analysis fea
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

    • NASTRAN

    • SAMCEF


References
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.aspx

  • 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/default.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


References1
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_supplier_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_simulate_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/MCAD/products/index.htm

  • Vicinay cadenas, S.A., Research and Development – Engineering, FEM - Finite Element Modeling, Retrieved in Nov. 2007 from: http://www.vicinaycadenas.net/en/desarrollo/desarrollo1.asp?idfam=3%7C18

  • Wikipedia, CAM: Computer-Aided Manufacturing, Retrieved in Nov. 2007 from: http://en.wikipedia.org/wiki/Computer-aided_manufacturing

  • Wikipedia, Finite element analysis, Retrieved in Nov. 2007 from: http://en.wikipedia.org/wiki/Finite_element_analysis


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.”


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