欢迎来到天天文库
浏览记录
ID:34069984
大小:14.97 MB
页数:63页
时间:2019-03-03
《激光微织构技术在内燃机缸孔表面上的应用-研究》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
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.,nlecylinder-bo
2、resurfacetexturingtechnologyC011bothsharplyreduceoilandfuelconsumption,decreasestheengineweal"andmanyotheradvantagesofenergyconservationandemissionsreduction,andhencehastheprospectofindustrializationapplication.Thetechnologyresearch,however,isstillstayinginthelaboratoryenvironmentsandid
3、ealconditions;theindustrializationapplicationstudyisinsufficient.‘嘶spaperstudies0nthekeytheories,processesandequipmentofthetechnology,andthemaincontentsareasfollows:Sub-regionalcharacterizationmethodWasputtedforwardtodescribetherandom—morphologyandregular-texturecompoundsurface.nlemetho
4、ddividedthetexturesurfaceintotwoparts;theAbbott—curvesystemWasremainedtocharacterizetherandomgroovesurface,andthenmadethecharacterizationparametersforregular—texture,finallycombinedthetwopartsresultstoevaluatethesurface’Soilstorage,lubricationandprocessperformance.rnlecharacterizationsy
5、stemwasconfirmedbyimplementingtothespecificcylinder-boresurface,andthenproposedtheessentialsurfaceparametersbeforethelasersurfacetexture(LST)treatment,namely心k0.1—0.15pa:Il,Rvk0.5-0.81xm,gk0.3-0.5I.trn.Thispaperresearchedtheindustrializationprocessofcylinder—boreLSTtreatment,involvingth
6、eLSTprocessandpost-treatmentprocess.TheLSTprocesspartfirstlystatedthe‘‘Singlepulseintervals(SPI)”technology,thenverifiedtheSinglepulseenergyewasthekeyparametertodeterminethemicro-pits’morphology,andestablishedtheprocessparameters—pitsmorphologyspectrum,lastlyanalyzedthetexturepitsandrec
7、astlayerformationmechanismandtheexperimentsresultsshowedthesecondarygastypeandpressurehadnosignificanteffectonsurfacehardness,recastlayerheightandmorphology,henceselectstheairastheauxiliarygas.Thepost-treatmentprocesspartcardedoutthegrindingexperimentandconfirmedthepolishingpro
此文档下载收益归作者所有