Computer Aided Manufacturing Joshua Saari OPERMGT 345 PowerPoint Training Presentation.

Computer Aided Computer Aided ManufacturingManufacturing

Joshua SaariJoshua Saari

OPERMGT 345OPERMGT 345

PowerPoint Training PowerPoint Training PresentationPresentation

OverviewOverview

Computer Aided Manufacturing Computer Aided Manufacturing DefinedDefined

Brainstorming ExerciseBrainstorming Exercise Nuts and BoltsNuts and Bolts How It WorksHow It Works A Real World ExampleA Real World Example Summary of PresentationSummary of Presentation Works CitedWorks Cited


What is Computer Aided What is Computer Aided Manufacturing?Manufacturing?• If is “control of the manufacturing If is “control of the manufacturing

process by computers” involving the process by computers” involving the integration of CAD engineering data integration of CAD engineering data and the computerized equipment and the computerized equipment which manufactures the product.which manufactures the product.

– (Russell, Taylor 213)(Russell, Taylor 213)


Other definitions:Other definitions:• ““Computer aided manufacturing Computer aided manufacturing

concerns the use of algorithms for concerns the use of algorithms for planning and controlling fabrication planning and controlling fabrication processes.”processes.”

– (utwente.nl)(utwente.nl)

• Computer aided manufacturing is Computer aided manufacturing is “the use of computers for managing “the use of computers for managing manufacturing processes.”manufacturing processes.”

– (techtarget.com)(techtarget.com)


Using technology to produceUsing technology to produce Leveraging capital investmentsLeveraging capital investments Increasing productivity through Increasing productivity through

automationautomation Decreasing lead time through Decreasing lead time through

programmatically controlled programmatically controlled machinerymachinery

Brainstorming ExerciseBrainstorming Exercise

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


Identify benefits and costs of CAM:Identify benefits and costs of CAM:• Direct BenefitsDirect Benefits• Indirect BenefitsIndirect Benefits• Tangible CostsTangible Costs• Intangible CostsIntangible Costs


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

Nuts and BoltsNuts and Bolts

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


Computer Numerically Controlled Computer Numerically Controlled (CNC)(CNC)• Machine that is controlled by computerMachine that is controlled by computer• Utilizes monitor and keyboard for Utilizes monitor and keyboard for

operator interactionoperator interaction• Facilitates greater control over qualityFacilitates greater control over quality• Allows machine to monitor the Allows machine to monitor the

maintenance of its partsmaintenance of its parts


Direct Numerical Control (DNC)Direct Numerical Control (DNC)• Each machine contains own Each machine contains own

microprocessormicroprocessor• Entire bank of machines controlled by Entire bank of machines controlled by

a single central computera single central computer• If used with automated material If used with automated material

handling, considered to be a flexible handling, considered to be a flexible manufacturing systemmanufacturing system


Flexible Manufacturing System Flexible Manufacturing System (FMS)(FMS)• Numerous computer-controlled Numerous computer-controlled

machines fed by automated material machines fed by automated material handling systemhandling system

• Allows for broad and deep product mixAllows for broad and deep product mix• Minimal setup times enable small lot Minimal setup times enable small lot

sizessizes


RobotsRobots• Mechanical manipulators that can be Mechanical manipulators that can be

accessed programmaticallyaccessed programmatically• Consistent, repetitive-motion tolerantConsistent, repetitive-motion tolerant• Ideal for tasks that are hazardous to Ideal for tasks that are hazardous to

humanshumans


Automated Materials Handling Automated Materials Handling SystemSystem• System where raw materials are System where raw materials are

automatically fed into machinesautomatically fed into machines• Examples:Examples:

– Conveyor beltsConveyor belts– Automated Guided Vehicles (AGV)Automated Guided Vehicles (AGV)– Automated Storage and Retrieval Automated Storage and Retrieval

Systems (ASRS)Systems (ASRS)

How It WorksHow It Works

1.1. Product is conceived by engineerProduct is conceived by engineer

2.2. Product is designed using CAD Product is designed using CAD softwaresoftware

3.3. CAD data is transferred to CAD data is transferred to manufacturing machine’s memorymanufacturing machine’s memory

4.4. Machine uses the CAD data to Machine uses the CAD data to produce the product, with little produce the product, with little human interventionhuman intervention


Old System (without CAM)Old System (without CAM)• Product is designed with CAD Product is designed with CAD

softwaresoftware– Each production machine is programmed Each production machine is programmed

individuallyindividually

OR – if not automated :OR – if not automated :– Employees are trained on proper Employees are trained on proper

production of the productproduction of the product


New System (using CAM)New System (using CAM)• Product is designed with CAD Product is designed with CAD

softwaresoftware– Product specifications are sent over the Product specifications are sent over the

plant network to each machineplant network to each machine– Machines have ‘intelligence’ to produce Machines have ‘intelligence’ to produce

the products without human interventionthe products without human intervention

A Real World ExampleA Real World Example

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

manufacture processmanufacture process


C D War and Associates turned to C D War and Associates turned to CAMCAM• 3-step process:3-step process:

– converting the artistic garment converting the artistic garment specification into a technical specification specification into a technical specification

– using the technical specification to using the technical specification to calculate yarn weights and manufacturing calculate yarn weights and manufacturing times times

– converting weights and times to costsconverting weights and times to costs– (C D Ward and Associates)(C D Ward and Associates)


C D Ward and AssociatesC D Ward and Associates• CAM solution:CAM solution:

– Enables faster turnaround of new Enables faster turnaround of new productsproducts

– Reduces waste by using raw materials Reduces waste by using raw materials more efficientlymore efficiently

– Generates costs based on design Generates costs based on design specificationsspecifications

SummarySummary

Here’s what we’ve looked at so Here’s what we’ve looked at so far….far….• DefinitionDefinition• BrainstormedBrainstormed• Nuts and BoltsNuts and Bolts• How It WorksHow It Works• Real World ExampleReal World Example

ConclusionConclusion

CAM enables companies to CAM enables companies to leverage capital investmentleverage capital investment

CAM allows for cost savings that CAM allows for cost savings that can be passed on to the final can be passed on to the final consumerconsumer

CAM utilizes human resources CAM utilizes human resources more efficiently to minimize labor more efficiently to minimize labor costscosts

Works CitedWorks Cited

Russell, Roberta and Taylor, Bernard. Russell, Roberta and Taylor, Bernard. Operations Management.Operations Management. 3 3rdrd ed. Upper Saddle ed. Upper Saddle River: Prentice-Hall, 2000.River: Prentice-Hall, 2000.

““Computer Aided Manufacturing.” Internet. Computer Aided Manufacturing.” Internet. http://www.opm.wb.utwente.nl/cam.htmlhttp://www.opm.wb.utwente.nl/cam.html. 7 . 7 May 2002.May 2002.

““Computer-Aided Manufacturing.” Internet. Computer-Aided Manufacturing.” Internet. http://whatis.techtarget.com/definition/0,,sid9_http://whatis.techtarget.com/definition/0,,sid9_gci758962,00.htmlgci758962,00.html. 7 May 2002.. 7 May 2002.

““Knitwear and CAD/CAM.” Internet. Knitwear and CAD/CAM.” Internet. http://www.cdwa.com/html/knitpaper.htmlhttp://www.cdwa.com/html/knitpaper.html. 7 . 7 May 2002.May 2002.

Computer Aided Manufacturing Joshua Saari OPERMGT 345 PowerPoint Training Presentation.

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