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CVD金刚石涂层刀具切削性能与磨损机理研究（英文）.docx

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CVD金刚石涂层刀具切削性能与磨损机理研究（英文） Title:StudiesontheCuttingPerformanceandWearMechanismofCVDDiamond-CoatedCuttingTools Abstract: TheapplicationofCVD(ChemicalVaporDeposition)diamond-coatedcuttingtoolshasgainedsignificantattentioninthemachiningindustryowingtotheirexceptionalhardnessandwearresistance.Thispaperaimstoinvestigatethecuttingperformanceandwearmechanismofsuchtools. Introduction: CVDdiamondcoatingisapromisingtechniqueforimprovingtheperformanceofcuttingtoolsbyenhancingtheirhardness,thermalstability,andwearresistance.ThecuttingperformanceandwearmechanismofCVDdiamond-coatedtoolsarecrucialfactorstounderstandforoptimizingtheirapplicationinvariousmachiningprocesses. Methodology: Toconductthisstudy,thefollowingstepswereundertaken: 1.Selectionofcuttingtoolsubstratematerial:Asuitablesubstratematerialwithgoodthermalconductivityandmechanicalstrengthisessentialforensuringeffectiveadhesionandperformanceofthediamondcoating. 2.CVDdiamondcoatingprocess:ThecuttingtoolsubstrateswerecoatedwithdiamondfilmusingtheCVDtechnique.Theprocessparameterssuchastemperature,pressure,andgascompositionwereoptimizedtoachievethedesiredthicknessandqualityofthediamondcoating. 3.Cuttingperformanceanalysis:Thecoatedcuttingtoolswereevaluatedfortheircuttingperformanceusingamachiningtest.Variouscuttingparameterssuchascuttingspeed,feedrate,anddepthofcutwereconsideredtounderstandtheinfluenceofthesevariablesonthetool'seffectiveness. 4.Wearmechanismanalysis:Theworncuttingtoolswereanalyzedusingadvancedmicroscopytechniquessuchasscanningelectronmicroscopy(SEM)tounderstandthewearbehaviorandmechanismsoccurringduringthemachiningprocess. ResultsandDiscussion: ThecuttingperformanceanalysisrevealedthatCVDdiamond-coatedcuttingtoolsexhibitedimprovedtoollifeandsurfacefinishcomparedtoconventionaltools.Thehighhardnessandwearresistanceofthediamondcoatingresultedinreducedtoolwearandenhancedcuttingefficiency.Furthermore,thetool'scuttingperformancewasfoundtobeinfluencedbytheselectionofcuttingparameters,withoptimalparametercombinatio