Computer Aided Manufacturing

1
Computer Aided Manufacturing

• Joshua Saari
• OPERMGT 345
• PowerPoint Training Presentation

2
Overview

• Computer Aided Manufacturing Defined
• Brainstorming Exercise
• Nuts and Bolts
• How It Works
• A Real World Example
• Summary of Presentation
• Works Cited

3
Computer Aided Manufacturing

• What is Computer Aided Manufacturing?
• If is control of the manufacturing process by
  computers involving the integration of CAD
  engineering data and the computerized equipment
  which manufactures the product.
• (Russell, Taylor 213)

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Computer Aided Manufacturing

• Other definitions
• Computer aided manufacturing concerns the use of
  algorithms for planning and controlling
  fabrication processes.
• (utwente.nl)
• Computer aided manufacturing is the use of
  computers for managing manufacturing processes.
• (techtarget.com)

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Computer Aided Manufacturing

• Using technology to produce
• Leveraging capital investments
• Increasing productivity through automation
• Decreasing lead time through programmatically
  controlled machinery

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Brainstorming Exercise

• How can CAM benefit your company?
• Integrate design and manufacturing
• Make mass customization possible
• Reduce costs
• Leverage computing power
• Automate manufacturing processes

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Brainstorming Exercise

• Identify benefits and costs of CAM
• Direct Benefits
• Indirect Benefits
• Tangible Costs
• Intangible Costs

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Brainstorming Exercise

• What processes in your company could be more
  efficient through CAM?

9
Nuts and Bolts

• Essentially the collection of computer
  technologies used in manufacturing
• Computer Numerical Control (CNC)
• Direct Numerical Control (DNC)
• Flexible Manufacturing System (FMS)
• Robots
• Automated material Handling Systems

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Nuts and Bolts

• Computer Numerically Controlled (CNC)
• Machine that is controlled by computer
• Utilizes monitor and keyboard for operator
  interaction
• Facilitates greater control over quality
• Allows machine to monitor the maintenance of its
  parts

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Nuts and Bolts

• Direct Numerical Control (DNC)
• Each machine contains own microprocessor
• Entire bank of machines controlled by a single
  central computer
• If used with automated material handling,
  considered to be a flexible manufacturing system

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Nuts and Bolts

• Flexible Manufacturing System (FMS)
• Numerous computer-controlled machines fed by
  automated material handling system
• Allows for broad and deep product mix
• Minimal setup times enable small lot sizes

13
Nuts and Bolts

• Robots
• Mechanical manipulators that can be accessed
  programmatically
• Consistent, repetitive-motion tolerant
• Ideal for tasks that are hazardous to humans

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Nuts and Bolts

• Automated Materials Handling System
• System where raw materials are automatically fed
  into machines
• Examples
• Conveyor belts
• Automated Guided Vehicles (AGV)
• Automated Storage and Retrieval Systems (ASRS)

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How It Works

• Product is conceived by engineer
• Product is designed using CAD software
• CAD data is transferred to manufacturing
  machines memory
• Machine uses the CAD data to produce the product,
  with little human intervention

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How It Works

• Old System (without CAM)
• Product is designed with CAD software
• Each production machine is programmed
  individually
• OR if not automated
• Employees are trained on proper production of the
  product

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How It Works

• New System (using CAM)
• Product is designed with CAD software
• Product specifications are sent over the plant
  network to each machine
• Machines have intelligence to produce the
  products without human intervention

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A Real World Example

• C D Ward and Associates
• Manufacturer of knitwear in England
• Needed to automate design-to-manufacture process

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A Real World Example

• C D War and Associates turned to CAM
• 3-step process
• converting the artistic garment specification
  into a technical specification
• using the technical specification to calculate
  yarn weights and manufacturing times
• converting weights and times to costs
• (C D Ward and Associates)

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A Real World Example

• C D Ward and Associates
• CAM solution
• Enables faster turnaround of new products
• Reduces waste by using raw materials more
  efficiently
• Generates costs based on design specifications

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Summary

• Heres what weve looked at so far.
• Definition
• Brainstormed
• Nuts and Bolts
• How It Works
• Real World Example

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Conclusion

• CAM enables companies to leverage capital
  investment
• CAM allows for cost savings that can be passed on
  to the final consumer
• CAM utilizes human resources more efficiently to
  minimize labor costs

23
Works Cited

• Russell, Roberta and Taylor, Bernard. Operations
  Management. 3rd ed. Upper Saddle River
  Prentice-Hall, 2000.
• Computer Aided Manufacturing. Internet.
  http//www.opm.wb.utwente.nl/cam.html. 7 May
  2002.
• Computer-Aided Manufacturing. Internet.
  http//whatis.techtarget.com/definition/0,,sid9_gc
  i758962,00.html. 7 May 2002.
• Knitwear and CAD/CAM. Internet.
  http//www.cdwa.com/html/knitpaper.html. 7 May
  2002.