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1、CutterPathSimulationandProductVisualizationUsingAutoCADSAMUELH.HUANG,KAPILR.BHURA,GEWANGIntelligentCAMSystemsLaboratory,DepartmentofMechanical,Industrial&ManufacturingEngineering,UniversityofToledo,Toledo,Ohio43606Received8November1999;accepted24April2000ABSTRACT:Inth
2、ispaper,asoftwaretoolforNC(numericalcontrol)cutterpathsimulationandproductvisualization,3D-Sim,ispresented.3D-Simutilizesacommercialcomputer-aideddesign(CAD)softwaretool,AutoCAD,toperformvirtualNCveri®cation.AnNCprogramisinterpretedandtransformedintoanAutoLISPprogram,
3、whichonceloadedinAutoCADallowstheusertovisualizethevirtualmachiningoperationsandobtaina3Dsolidmodelofthe®nalpart.IncorporatingNCveri®cationcapabilityintoCADsoftwaretoolsnotonlyreducessoftwarecostbutalsoshortensusertrainingtime.Theresulting3Dsolidmodelallowstheusertovi
4、sualizethe®nalproductaswellasperformmoredetailedanalysissuchasmeasuringthedimensions.3D-Simhasbeenusedinthesenior/graduatelevelcomputer-aidedmanufacturing(CAM)courseandwaswell-receivedbythestudent.Thisworkispartofalong-termresearchefforttoestablishanintegratedmanufact
5、uringenvironmentwherestudentscanreceiverigoroustrainingandgainhands-onexperienceincollaborativemanufacturingthroughtheuseofintegratedcomputerizedsystems.ß2000JohnWiley&Sons,Inc.ComputApplEngEduc8:113±126,2000Keywords:CAD/CAM;numericalcontrolcutterpath;simulation;produ
6、ctvisualization;solidmodelINTRODUCTIONcon®dentlyreleasedtoproduction.ThepossibilityoferrorsinanNCprogramincreaseswiththecomplex-ityoftheparttobemachined.ManuallywrittenTechnicalBackgroundprogramstendtohavemoreerrorsthanthoseNowadays,NCmachinesarecommonlyusedingenerate
7、dbysoftwaretools.Theseerrorscanbemodernmanufacturingenvironmenttoproduceparts.extremelycostlysincetheyoftenresultincrashedHowever,programsusedbyNCmachinesarenotmachines,ruinedparts,damaged®xtures,brokenerrorfree,andhavetobeveri®edbeforetheycanbetools,andinaccuratepart
8、geometry.Becauseofthepossibilityoferror,regardlessofwhethertheNCcodesareproducedwithaCAD/CAMsystem,atthemachine,orsomewherei
