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1、Availableonlineatwww.sciencedirect.comScienceDirectProcediaCIRP14(2014)5585636thCIRPInternationalConferenceonHighPerformanceCutting,HPC2014Empiricalstudyofthepowerefficiencyofvariousmachiningprocessesaaaaa,b,Hae-SungYoon,Jang-YeobLee,Min-SooKim,Eun-SeobKi
2、m,Sung-HoonAhn*aSchoolofMechanicalandAerospaceEngineering,SeoulNationalUniversity,Seoul,151-744,KoreabInstituteofAdvancedMachineryandDesign,SeoulNationalUniversity,Seoul,151-744,Korea*Correspondingauthor.Tel.:+82-2-880-7110;fax:+82-2-888-9073.E-mailaddres
3、s:ahnsh@snu.ac.krAbstractMachiningisoneofthemostwidelyusedsubtractiveprocesses,andmanystudieshavereportedmethodstoimprovethequality,productivity,andeffectivenessoftheprocess.Moreover,inrecentyears,energyefficiencyhasbecomeanincreasinglyimportantconsiderat
4、ion,largelyasaresultofnewlegislationandstandardizationinresponsetoenvironmentalconcerns.However,theanalysisoftheenergyefficiencyofmachinetoolsisnotstraightforwardbecauseofthecomplexityofthecomponentsandprocess.Thisstudycomparedthepowerefficiencyofvariousm
5、achiningprocessesatdifferentscales.Here,powerefficiencyisdefinedastheratiooftheprocesspowertothetotalpowerconsumption,anditwascalculatedusingexperimentalresultsfromconventionalmilling,micro-scaledrilling,andbrushing.Thecalculatedpowerefficiencyiscomparedf
6、ortheprocessesreportedhere,aswellaswithselectedpublisheddata.Wefoundthatthepowerefficiencyvariedregardlessofmachiningscalesorspecificenergyconsumed,andalsocanvarywidelyintermsoftheperipheraldevicesused.Moreover,forthecaseoflaser-assistantmachining,thepres
7、entpowerefficiencymetricdecreasedasthecuttingloaddecreased.Therefore,itisneedtoconsidertheeffectofthesurroundingenvironmentandeffectivenessofmachining,andsuggestionswereshownfortheconceptofnovelpowerefficiency.©2014PublishedbyElsevierB.V.OpenaccessunderCC
8、BY-NC-NDlicense.©2014TheAuthors.PublishedbyElsevierB.V.Selectionandpeer-reviewunderresponsibilityoftheInternationalScientificCommitteeofthe6thCIRPInternationalConferenceSelectionandpeer-reviewunderresponsibilityofthe
