高效铣削钛合金用大进给pcd刀具设计与工艺优化

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1、啥尔滨理工大学工学硕士学位论文Highefficiencymillingoftitaniumalloywithhigh-feedPCDcuttingtooldesignandprocessJ-●·o0ptlmlZationAbstractDuetotheexcellentcomprehensiveperformance，suchashighductilityandcorrosionresistance，Titaniumhasbeenwidelyusedinthefieldsofaerospace，chemicalengineering，electricpower,andSOon．Asth

2、edemandsareincreasingfortheapplicationsrangeandtheamountofTitanium，theproblemforTitaniumwhichisdifficulttomachinehasbeguntobefocused．Atpresent，cementedcarbidetooliSthemaintoolstomachineTitanium．However，withthedevelopmentoftoolindustry,PCDtoolhasbeenwidelyusedtomachineTitaniumforitseximiouspropert

3、yofhighhardness，lowfrictioncoefficientandgoodabrasiveresistance，whichcannotonlyimprovecuttingefficiency,butalsoincreaseitslifetimecomparedwiththecementedcarbidet001．ConsideringthatonlyreasonablecuttingparametersandgeometricalangleoftoolcanmaximizetheadvantagesofPCDtool，thisthesisdesignedthegeomet

4、ricalangleofPCDtoolusedforhighcuttingfeed．Finally,theresultwasobtainedbasedontheoptimizationmethodandexperimentresearch．Themajorresearchworksareincludedasfollows：1．ThisthesisdesignedthetoolradiusofPCDtoolusedforhigh-feedbasedonthefiniteelementsimulation．Thegeometricalangleofhigh-feedPCDtoolisobta

5、inedbysimulatingtheeffectofdifferenttoolradiusestOcuttingforceandcuttingtemperatureafterestablishingthefiniteelementmodelsoftoolnose．2．Inordertoselectthegeometricalangleofhigh—feedPCDtoolusedforhighcuttingfeed，TaguchiorthogonaltestaswellasthemethodsofrangeanalysisandvarianceanalysisarebothusedtOd

6、ealwiththedatabysinglefactorexperimentsforhighcuttingfeedmillingandthatforhigh—efficiencymilling，andthentheexperimentsforhighcuttingfeedmillingandhigh—efficiency．¨．哈尔滨理工大学工学硕士学位论文millingwerecarriedoUt，respectively．Thenthisthesisrespectivelycontrastedtheeffectofhighcuttingfeedmillingandhigh-effici

7、encymillingtothecuttingforceandsurfaceroughness，andanalyzedthemetalremovalratebycontrastingtheexperimentresults．3．Thehigh．feedexperimentstotestthelifetimeandweal"limitsofPCDtoolwasdone，andthemodeltopredictthelifetimeof