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2008442SystemSimulationTechnologyApr.,2008Vol.4,No.2:TP39:A,,(,116028):,,3,:;;;SummaryofResearchontheNCMachiningSimulationTechnologyLIYang,ZHAOYongcheng,WEILan(SchoolofMechanicalEngineering,DalianJiaoTongUniversity,Dalian116028,China)Abstract:NCmachiningsimulationtechnologycanstimulatethewholeprocessofNCmachiningvivid2ly.AneffectivetoolisprovidedinordertovalidatethereliabilityofNCmachiningprogramandforecastthecuttingprocess.ThispaperintroduceskeytechnologyofNCmachiningstimulation2geometrysimula2tiontechnology,physicalsimulationtechnologyandimagevisualizationtechnologyandrespectivelymakesananalysisandreviewforresearchresultsofthreekeytechnologiesofNCmachiningstimulation.ThedevelopmenttrendofNCmachiningsimulationtechnologyispresentedfinally.Keywords:NCmachiningsimulationtechnology;geometrysimulationtechnology;physicalsimulationtechnology;imagevisualizationtechnology1,,,,,2,[1],[2]2.1©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[3]11Fig.1Principleofsolidbooleansubtract2,;,,HPLYang,,,,[4]WPWangKKWang[5],,,2.1.2,,,(Graftree)[6],22,,2(removedvolume)2,,,,,,,2Fig.2Graftreemethoddatastructure2.2,,,,Z[7]ZZZZ,,,Z:,,33Fig.3Theintersectionofprojectionlineofeachpixelthroughscreenandobjectsurfaceinscene211©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:,2,2.3(),,,,[8](xOy),MN[9]z44Fig.4Uniformdiscretevectormodel,,[10],,,(E2MAP[8]),5,,,,5Fig.5Optimizeddiscretevectormodel2.4,,Jerard,Chappel,,OliverGoodman[11],,,3,,,,,3,[12],,,VTn=C,V,T,nC311©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[13-15],[16],,CNC()LeeShafer[17]66Lee2ShaferFig.6SpinlinefieldmachiningmodelofLee2ShaferMerchant=4-2+02,,0,F=ADsincos(++0),AD,50,,,[18][19],,DeverKapoor,,AlfintasSpense,,StrenowsikiCarroll[20],,,,,,7S.LeiY.C.Shin[21]7Fig.7ProcessofmachiningdeformationinFEMmodel,,,42080,CGNC,HookT.V.Z,,,,NC,(voxel),411©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:NC,,,,,,,,,[2]5,,:(1),,,,(2),(3),,(4)(5),,:[1].CAD/CAM[M].:,1994.TANGRongxi.CAD/CAMtechnology[M].Beijing:BeijingUniversityofAeronauticsandAstronauticsPress,1994.[2],,.[J].,2006,27(9):123.ZHANGJin,WANGLin,MALixin.Investigativeactuali2tyinNCsimulationsystem[J].CoalMineMachinery,2006,27(9):123.[3][]ME.[M].,,,.:,1992.[America]MortensonMichaelE.Geometricmodeling[M].MOChongyu,RUANPeiwen,DINGXiyuantrans2lation.Beijing:ChinaMachinePress,1992.[4]HsuPL,YangWT.Realtime3Dsimulationof32axismillingusingisometricprojection[J].Computer2AidedDesign,1993,25(4):2352243.[5]WangWP,WangKK.Geometricmodelingforsweptvolumeofmovingsolids[J].IEEECG&A,1986,6(12):8217.[6]KawashimaY,ItohK,IshidaT,etal.Aflexiblequantita2tivemethodforNCmachiningverificationusingaspace2divisionbasedmodel[J].TheVisualComputer,1991(7):1492157.[7].[J].:,2002,(28)2:1372142.XIAXiaoling.Hiddensurfaceremovalfor3Dobject[J].JournalofDonghuaUniversity:NaturalScience,2002(28)2:1372142.[8]YoungB,ChoiK,JerardRobertB.Sculpturedsurfacemachining2theoryandApplication[M].[s.l.]:KluwerAcademicPublishers,1998.[9],,.511©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[J].,2001,22(1):31238.YANZhongbiao,LIUJinghua,YANGuangrong.Atech2nologyofsimulationinthenumericalcontroledmachi2ningbasedonstock2remainingmodel[J].JournalofEn2gineeringGraphics,2001,22(1):31238.[10],,.[J].,2002(1):15219.GAOMing,CHENYanqiu,LIJingxiu.Optimizeddis2cretevectormodelofNCmachiningsimulation[J].Jour2nalofEngineeringGraphics,2002(1):15219.[11]OliverJH,GoodmanED.DirectdimensionalNCverfica2tion[J].Computer2AidedDesign,1990,22(1):329.[12],,,.[J].,2006(9):8211.CHENXiusheng,ZHANGChengrui,LIURiliang,etal.StudyonthekeytechnologyofNCphysicalsimulationsystem[J].ModularMachineTool&AutomaticManu2facturingTechnique,2006(9):8211.[13],,.[J].,1997,25(2):1122117.WENGZeyu,LUJianxia,HEXingshu.Practicalmethodforthedeterminationofthedynamiccuttingcoefficients[J].JournalofZhejiangUniversityofTechnology,1997,25(2):1122117.[14]ColdingBN.Athree2dimensionaltoollifeequation2ma2chiningeconomics[J].ASMEJEngforIndustry,1959(81):2392250.[15]ColdingBN.Atooltemperature/toolliferelationshipcoveringawiderangeofcuttingdata[J].CIRP2Annals,1991,40(1):35240.[16]RubensteinC.Ananalysisoftoollifebaseduponexperi2mentalflowfields[J].JMechEngSci,1978,14(2):85296.[17]LeeEH,ShaferBW.Thetheoryofplasticityappliedtoaproblemofmachining[J].TransactionsofASME,Jour2nalofAppliedMechanics,1951,18(4):4052413.[18]VanLutterveltCA,ChildsT,JawahirIS.Thestate2of2the2artofmodelinginmachiningprocesses[J].CIRP2Annals,1998,47(2):5872626.[19]KapoorSG,DeVorRE,ZhuR.Developmentofmecha2nisticmodelsforthepredictionofmachiningperform2ance:modelbuildingmethodology[J].MachiningSci2enceandTechnology,1998,2(2):2132238.[20]StremkowskiJS,CarrollJT.Anorthogonalmetalcuttingmodelbasedonaneulerianfiniteelementmethodmanu2facturingprocesses[J].MachinesandSystemsConfer2enceonProductionResearchandTechnology,1986(13):261.[21]LeiS,Sh