形状记忆合金非常规加工综述-论文.pdf

《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