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1、機床與液壓Sep．2013HydromechatronicsEngineeringVo1．41No．18DOI：10．3969／j．issn．1001-3881．2013．18．007NumericalAnalysisandExperimentalResearchonMicroMillingProcesswithCycloidalToolPathCAOZiyang，XUEXiaohong，LIHuaCollegeofMechanicalEngineering，SuzhouUniversityofScienceandTechnology，Suzhou215009，
2、ChinaAbstract：Micromillingoperationscanfabricateminiaturizedcomponentswithhighrelativeaccu’racy．Inmicromillingprocess，theanalysisofstabilitybasedoncuttingforceanddisplacementplaysanimpoflantroleincharacterizingthemachiningprocess，asthetoolwearandsurfacequalitydependonit．Inthispaper，t
3、heexpressionsofinstantaneouscuttingthicknessanddynamiccutingforceinmicromillingwithcycloidaltoolpatharedeveloped；thestabilitylobeofmill-ingsystemisconstructedthroughfrequency-domainapproachbasedonthemachiningsystemfrequencyresponsefunctionobtainedbymodaltesting．Thisisfollowedbyadetai
4、ledtime。do。mainsimulationpredictingforcesanddisplacementsatstableandunstablemachiningregion，andthevariationinsurfaceIocationerrorwithaxiallocationIsestimatedtoimprovethepartgeometricaccuracy．Keywords：NumericalAnalysis，MicroMilling，CycloidalToolPathmillingprocess，cuttingforcesandtheto
5、oldisplace‘1．IntroductionmentsplayanimportantroleinthedeterminationofthecharacteristicsofcuttingprocessesliketoolwearThereisastrongdemandfromvariousindustriesandsurfacetexture，theestablishmentofcuttingforminiaturedevicesandcomponentswithcomplexplans，andthesettingofcuttingconditions[5
6、—7]．microscalefeaturesfabricatedonavarietyofmateri—Itisveryimportanttostudythedynamicsofcuttingals．Micromillingcanovercomethelimitationsofforcesanddisplacementsinanymachiningprocesssemi—conductorbasedprocessingtechniquesbyutili—forproperplanningandcontrolofmachiningprocesszingminiatu
7、retoolstomakecomplex3Dpartsfromandfortheoptimizationofthecuttingconditionstodifferentengineeringmaterialswithnoneedforex—minimizeproductioncostsandcycle．pensivemasks[1-2]．HowtosetcuttingconditionsisMicromillingprocesswithcirculartoolpathhasveryimportant，duetothefragilenatureofthemini
8、a—beenstudie
