超声elid复合磨削zta纳米复相陶瓷表面特性探究-(6172)

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1、AbstractEngineeringceramicmaterialswhicharewidelyusedinvariousindustrialfieldshaveexcellentperformance.Butcomparedwiththemetalmaterial,theyarestillbelongtohighhardbrittlematerials,processedwiththeconventionalprocessingmethodiseasytoproducethequalitydefectssuchascracks,crumbles.Theeffec

2、tivemethodtosolvethisproblemisrealizedshapinggrindingofceramicmaterialtoobtaingoodsurfacequalitybyusingprecisionultra-precisionmachining,andshapinggrindingcanberealizedbychangingtheparametersofgrindingtobringdownthethicknessofundeformationshipofsinglegrits.UltrasonicandELIDcompositegri

3、ndingisanewcompositeprocessingtechnology,itcombinesultrasonicgrindinghighprecisionaswellastheadvantagesofELIDmirrorgrinding,soitprovidesanewmethodforhighprecisionprocessingofbrittlematerials.AndtheresearchofthethicknessofundeformationchipofultrasonicandELIDcompositegrindingisofgreatsig

4、nificanceforrealizingtheplasticityremovalofhardbrittlematerialandgettinggoodprocessingsurfaces.ThispaperstudiesZTAnano-compositeceramicsoftheultrasonicandELIDcompositegrinding.Firstofall,themodelofthethicknessofundeformationchipoftheultrasonicandELIDcompositegrindingisestablishedontheb

5、asisofsummarizingthepredecessors'research,andthesimulationanalysisontheinfluencerulesandthetrendofsensitivityofvariousparametersonthethicknessofundeformationchiphasbeendone.Thesimulationresultsshowthatthethicknessofundeformationchipincreaseswiththeincreasingofgrindingdepth,decreasesalo

6、ngwiththeincreasingofthewheellinespeed,workpiecespeed,ultrasonicfrequency,andultrasonicamplitude.Thesensitivitysequencetothethicknessofundeformationchipis：apfVwVs,Atthesametime,predictionmodelofsurfaceroughnessisestablishedbasedonthethicknessofundeformationchiptotestandverifytheco

7、rrectnessofthemodel.Itcanindirectlyverifythecorrectnessofthemodelofthethicknessofundeformationchipbycomparisonthepredictedvaluesofsurfaceroughnesswithexperimentalvalues.Second,throughtheobservationandthemeasurementofthegrindingeffectssuchIII万方数据asgrindingforce,workpiecesurfacetopogra