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1、JournalofManufacturingProcessesJournalofManufacturingProcessesVol.5/No.1Vol.5/No.120032003AnalysisofWheelTopographyandGritForceforGrindingProcessModelingRogelioL.Hecker,UniversidadNacionaldeLaPampa,ArgentinaIgorM.Ramoneda,NissanNorthAmerica,Smyrna,Tennesse
2、e,USAStevenY.Liang,GeorgiaInstituteofTechnology,Atlanta,Georgia,USAAbstracta:Depthofcut(mm)Thetopographyofgrindingwheelsandtheforcesperac-b:Grainwidthofcut(m)tivegrainingrindingprovidethebasicunderstandingofgrind-de:Equivalentdiameter(mm)ingedgesandworkpi
3、eceinteraction.Thisunderstandingisd:Empiricalconstantfimportanttothemodeling,planning,andoptimizationofthef:Localcoefficientoffrictiongrindingprocessasawhole.Thispaperpresentsa3-Danal-ysisofthegrindingwheeltopographytoevaluatestaticpa-lc:Actualwheel-workpi
4、ececontactlength(mm)rametersofthewheelsuchastheeffectivegraindiameterq:Velocityratioandthestaticgraindensityasfunctionoftheradialdistancek:Empiricalconstantfromthewheelsurface.Tomodeltheforceateachgrain,thedynamicgraindensityisdeducedfromthestaticgraindens
5、itysd(h):Standarddeviationofchipthickness(m)–1whileconsideringthekinematiceffectssuchastheshadowsvw:Workpiecetangentialvelocity(mms)generatedbyactivegrainsandthedynamiceffectssuchasv:Wheeltangentialvelocity(mms–1)sthelocalgraindeflection.Theseeffectswer
6、eevaluatedana-w:Wheelwidthofcut(mm)lyticallyusingthegraindepthofengagementandthenor-malforcedevelopedpergrain.Tocalculatetheseeffects,az:Radialdistancemeasuredintothewheelprobabilisticmodelthatestimatestheundeformedchipthick-(m)nesswasused.Thismodelwascal
7、ibratedandvalidatedbasedz:Radialdistanceintowheelwithdeflectiononexperimentaldataoftotalnormalandtangentialforcesin(m)surfacegrinding.:Localgraindeflection(m)Keywords:GrindingWheelTopography,GrindingForce,Sur-:EffectiveattackangleforatypicalgrainfaceR
8、oughness,ActiveGrits:Internalshadowanglebyanactivegrain:InternalangleofagrainmodeledasaconeNomenclature:RayleighparameterA:Empiricalconstant–2Cs(z):Staticcuttingedgedensity(mm)Introduction–2Cd(z):Activecut
