激光微织构技术在内燃机缸孔表面上的应用研究

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1、激光微织构技术在内燃机缸孔表面上的应用研究应检测程序；最后开展了不同表面检测仪器间、不同检测方法问的对比检测试验，结果表明：截面拟合法确能够检测微织构化表面，且具有检测设备要求低、适用面广、效率高、结果客观等传统方法手段所不具有的优势，尤其适用于缸孔激光微织构技术的快速在线检测。关键词：缸孔活塞环，激光微织构技术，产业化，CNC，三维检测II江苏大学专业硕士学位论文ABSTRACTCylinder—boreandpistonringconsistofthekeyfrictionpairofinternalcombustionengine．，

2、nlecylinder-boresurfacetexturingtechnologyC011bothsharplyreduceoilandfuelconsumption,decreasestheengineweal"andmanyotheradvantagesofenergyconservationandemissionsreduction，andhencehastheprospectofindustrializationapplication．Thetechnologyresearch，however，isstillstayinginth

3、elaboratoryenvironmentsandidealconditions；theindustrializationapplicationstudyisinsufficient．‘嘶spaperstudies0nthekeytheories，processesandequipmentofthetechnology，andthemaincontentsareasfollows：Sub-regionalcharacterizationmethodWasputtedforwardtodescribetherandom—morphology

4、andregular-texturecompoundsurface．nlemethoddividedthetexturesurfaceintotwoparts；theAbbott—curvesystemWasremainedtocharacterizetherandomgroovesurface，andthenmadethecharacterizationparametersforregular—texture，finallycombinedthetwopartsresultstoevaluatethesurface’Soilstorage

5、，lubricationandprocessperformance．rnlecharacterizationsystemwasconfirmedbyimplementingtothespecificcylinder-boresurface，andthenproposedtheessentialsurfaceparametersbeforethelasersurfacetexture(LST)treatment，namely心k0．1—0．15pa：Il，Rvk0．5-0．81xm，gk0．3-0．5I．trn．Thispaperresear

6、chedtheindustrializationprocessofcylinder—boreLSTtreatment，involvingtheLSTprocessandpost-treatmentprocess．TheLSTprocesspartfirstlystatedthe‘‘Singlepulseintervals(SPI)”technology，thenverifiedtheSinglepulseenergyewasthekeyparametertodeterminethemicro-pits’morphology，andestab

7、lishedtheprocessparameters—pitsmorphologyspectrum，lastlyanalyzedthetexturepitsandrecastlayerformationmechanismandtheexperimentsresultsshowedthesecondarygastypeandpressurehadnosignificanteffectonsurfacehardness，recastlayerheightandmorphology，henceselectstheairastheauxiliary

8、gas．Thepost-treatmentprocesspartcardedoutthegrindingexperimentandconfirmedthepolishingpro