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1、摘要万方数据AbstractAbstractWiththecontinuousexplorationofnewmaterials,theporousmaterialisrapidlyinfiltratedintomanyfields.Howeverbasedoncharacteristicsofquickprocessingspeed,smallcostandsoon,micro-millingmachiningtechnologyisespeciallysuitableforporousmaterialminiaturecomponents’formationandm
2、anufacture.Theserviceperformanceandlifeexpectancyofcomponentsarecloselyrelatedtosurfacequalityandsteadymachiningprocess.Andthereasonableselectionofcraftparametersisplayingacrucialrole.Thisarticlefocusesondynamicsmodelingofmicro-millingprocess,stabilityandsurfacequalityandsoon.Andthepurpo
3、seistoguaranteethesmoothmachiningprocessandreducethedamageofmicro-millingcutter,thenensurecomponents’serviceperformanceatthesametimeprolongtheirservicelife.Themainworkisasfollows:Atfirstthisarticleintroducesthebasicconceptsandcharacteristicsofporousmaterials,establishessimplifiedmodelofh
4、oleconfigurationsystemandcarriesontheequivalentstiffnessanalysisoftheporousmaterial.Thenitestablishesmicro-millingdynamicsmodelofporousmaterials,basedonthismodelitseparatelyanalyzestheinfluenceofbothmicro-millingcutterandporousmaterialwork-piece’sstiffness,dampingratioandnaturalfrequency
5、onthestability.Onthebasisoftheoreticalanalysis,itlaunchesaninfluenceexperimentofthemicro-millingparametersforfurtherresearch,thatisthetoolconditionmonitoring.Throughexperimentsinitiallyestablishestherelationshipofmicro-millingforcesignal,vibrationsignalandmillingtemperaturesignalwiththet
6、hreeparameters,includingspindlespeed,axialcuttingdepthandfeedspeed.Toolwearindirectlyreflectswhethertheselectionofthemicro-millingmachiningparametersofporousmaterialsisappropriateornot.Finally,thisarticleanalyzestheproblemofsurfacequalityoftheporousmaterialwork-piece,andthenlinkstheresul
7、tswithprocessparameters.Thispaperhaslaunchedadetailedanalysisandresearchonthesecontent,includingsimplifiedmodelofholeconfigurationsystemofporousmaterials,equivalentstiffness,micro-millingdynamicsmodel,stability,therelevantexperimentaldesignandanalysisoftheresultsoftoolcon
