Introduction to digital manufacturing
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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.


Plm information model

PLM Information Model


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


Introduction to digital manufacturing

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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