内燃机凸轮轴表面激光的微织构技术及专用机床设计

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1、江苏大学工程硕士学位论文ABSTRACTAgoodlubricationconditionmaintainingalldsomestrengthenedmeaSuresofthe衔ctionuIlitsaremeallingmlinreducingthefrictionaIldwearofenginessoastoprolongitsservicelife．C锄shaRshaVeallimportalltimpactonmetheservicelifeaJldIntemalCoII】【bustionEnginepe怕m

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3、asertexturingmacllinetool，technologyofthe1asersurfacemicr0一texturingandtribologicalpropertiestests．Thisp印ergiVesasystemicsurVeyofwoddwideresearchesontheTexturingSurf．aceTribology．Thedesignrequestofthelasermacllinetoolispresentedaccordingtothestmcturecharacterist

4、icoftheenginecaInshm．TheMechaJlicalSystem，LaSerOpticalSystem，SoRwareaIldHardwareofthecontrolsystemhaVebeendesigned．Theprocessingroutine、VasdeVelopedtoachieVethemicro—machiningonthesurfaceofoil-p啪pingcam．Thehuman-computerinterfaceforlasermicro-text嘶ngsomvarewasde

5、signbyKingViewtoacIlieVethealItomationaJldimelligenceofCNCcomrolling．AnewtypespeciallasermachinetoolhasbeendeVeloped，W11ichcanrealizethelim(agecontrolofmecamshaRrotationandfeedingmotion研thQ-switchedlaserpulsebasedonPLCandlaserpulsecontrolcard．Theefrectofthemainl

6、asertexturingpar锄etersonmicm—maclliningquali够wasdiscussedaSimpoIrtaJltLSTtechnologybaSis．ThebenChtestsofthemelpurIlpc锄shmshaVebeenmlfilled．Tlleenginedurabili哆testshowthatthewearValueoftheLSTnodularcastironc锄shaRisre(1ucedby50％compared谢thnomalcamshaR．Theresultssh

7、owthatLSTteclulologycanimprovemetribologicalpropeniesaJldhardnessofenginec锄sh啦sumcesobviouslya11dwiUbeappliedwidelyinV撕ousimponallt衔ctionullitsinthe向ture．Theresearchfo咖saVe巧importantexperimentalbasisfor1asersurf-acetexturingIII内燃机凸轮轴表面激光微织构技术及专用机床设计tecllnology叩p

8、liedtohea、7dutyarldhighpairmechallicalsystem．T11isresearchworkisve巧importalltforthedeVelopmemandapplicationoftheTbxturingSurfaceT曲ology．Keywords：CamshaR，Lasermicr0-te