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时间:2020-05-03
《形状记忆合金非常规加工综述-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、Availableonlineatwww.sciencedirect.corn一Transactionsof:ScienceDirectNonferrousMetalsSocietyofChinaELERPressTrans.NonferrousMet.Soc.China24(2014)12—21www.tnrose.cnReviewonnon—conventionalmachiningofshapememoryalloysM.MANJAIAH,S.NARENDRANATH,S.BASAVARAJAPPA1.DepartmentofMechanicalEngineering,Nationa
2、lInstituteofTechnology,Surathkal,Kamataka,India;2.DepartmentofStudiesinMechanicalEngineering,UniversityB.D.T.CollegeofEngineering,Davangere577004,Karnataka,IndiaReceived19April2013;accepted22September2013Abstract:ShapememoryalloysrSMAs)arethedevelopingadvancedmaterialsduetotheirversatilespecificpr
3、opertiessuchaspseudoelasticity,shapememoryeffect(SME),biocompatibility,highspecificstrength,highcorrosionresistance,highwearresistanceandhighanti.fatigueproperty.Therefore.theSMAsareusedinmanyapplicationssuchasaerospace,medicalandautomobile.However,theconventionalmachiningofSMAscausesserioustoolwe
4、ar,timeconsumingandlessdimensionaldeformityduetoseverestrainhardeningandpseudoelasticity.Thesematerialscanbemachinedusingnon—conventionalmethodssuchas1asermachining,waterjetmachining(WJM)andelectrochemicalmachining(ECM),buttheseprocessesarelimitedtocomplexityandmechanicalpropertiesofthecomponent.E
5、lectricaldischargemachining(EDM)andwireEDM(WEDM)showhighcapabilitytomachineSMAsofcomplexshapeswithprecisedimensions.TheaimofthisworkistopresenttheconsolidatedreferencesonthemachiningofSMAsusingEDMandWEDMandsubsequentlyidentifytheresearchgaps.Insupporttotheseresearchgaps.thisworkhasalsoevolvedthefu
6、tureresearchdirections.Keywords:non.conventionalmachining;electricaldischargemachining;wireEDM:shapememoryalloysarewidelyacceptedinindus仃ies『6,7].1IntrOductiOnTheTiNiSMAsexhibitmorethan8%recoverablestraincomparedtootherSMAs.ManyinvestigationsInrecentyears,thematerialssuchastitanium-havebeenmadetos
7、tudytheef1’ectofternaryalloyingnickelbasedshapememoryalloys(SMAs)andotherelements,suchasMo,Al,HCCo,Pt,Au,Cr,Cu,Nb,SMAsarecommonlyusedinmedicalandindustrialandZronphasetransformationbehaviour,SMEandengineeringappl
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