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1、IntJAdvManufTechnolDOI10.1007/s00170-013-5536-2ORIGINALARTICLEAnalysisoftooldeflectioninmicromillingofgraphiteelectrodesGoranMijušković&PeterKrajnik&JanezKopačReceived:18March2013/Accepted:2December2013#Springer-VerlagLondon2013AbstractInthispaper,the
2、tooldeflectionisfirstanalyzedandgoodsurfacefinish[3].Theuseofmicromillingisnotanalytically,basedonafour-sectioncantileverbeamrepresen-onlyintendedformicromolds,butalsoformicrofeaturesontationofthetool.Contributionsofdifferentsectionsofthetoolcomplexma
3、cro,mesomolds.Inordertominimizewearoftototaltooldisplacementarequantified.Thentheinfluenceofmoldsusedformassproduction,hardenedtoolsteelisthecuttingparameters(widthofcut,depthofcut,andfeedpermostsuitablematerialselection.Hardmicromillingcausestooth)on
4、tooldeflectionareinvestigatedexperimentallyusingseveretoolwearandoftenprematurebreakageofcuttingpreciselaser-basedmeasuringtechnique.Empiricalmodelingedgesduetosize-effect[4].Moreover,excessivetoolwearoftooldeflectioncurvesisbasedonamixedfullfactorial
5、resultsininadequateworkpiecequalityintermsofburrfor-12(23)designofexperimentstofindafunctionalinterrelationmation,surfacequality,anddimensionalaccuracy[5,6].betweenthetooldeflectionclosetothetipandthecuttingOnepossibilitytoincreasetoollifeofmicroendmi
6、llsistoparameters.TheresultsshowthatresponsesurfacemodelofimprovetheirwearresistanceviathinfilmPVDhardcoating.tooldeflectioncanbeusedtocharacterizetheprocessbehav-Aramcharoenetal.[7]investigatedthewearprogress,surfaceioracrossausefulrangeofcuttingcond
7、itions.Analyticalandfinish,andburrformationonhard-coatedfine-graincarbideempiricalmodelpredictionsarecomparedwithexperimentaltoolsinmicromillingofhardenedtoolsteelH13(45HRc).resultsandagoodagreementisobserved.TheyconcludedthatTiNhasthebestperformancew
8、ithre-specttoflankwear,chipping,edgeradiuswear,surfacefinish,KeywordsMicromachining.Micromilling.Graphite.Toolandburrsize.Lietal.[8]introducedanewdesignofmicro-deflection.Modelingendmillgeometryforhardmillingoftoolsteel(AISIH11,H13,andD2,upto5
