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1、EffectofToolRakeAngleonMachiningVibrationAbstract：Effectoftoolrakeangleoncuttingvibrationbyexperimentsaredoneatdifferentcuttingspeedinmachiningoperation,andcorrespondingtheoreticalanalysisisconducted.Resultindicates,amplitudeofmachiningvibrationgraduallydecreases
2、withtoolrakeangleincreasing;whilerakeangleγ0<0°,thebiggestunidirectionamplitudeoccursatV=50~70m/min;Whileγ0≥0°,itisatV=160~180m/min.Moreover,quardingmeasuresispresentedonavoidingthebiggestamplituderangesoastoguaranteequanlityinprecisionmachiningathighspeed.Keywor
3、ds:machining,vibration,amplitude,toolrakeangleInmachiningoperation,toolcharacterisnotonlydecidedbymaterial,toacertainextent,itdependsonresonablegeometricalparameters.Toolrakeangleisoneofthespecialestgeometricalparameters,directlyaffectscuttingzonedeformation,chip
4、morphology,chipbreakeffection,cuttingforce,toolheadstrengthandmachinedsurface,qualityitisresearchedbyforeignscholars.Relativestudypointsout[1]:toolrakeanglealsohasconsiderableeffectonmachiningvibration.Butwhatispresentsituationaboutresearchoftoolrakeangleaffectin
5、gmachiningvibration?Whatistherelationexsitsbetweenarkeangleandamplitudeofvibrationatdifferentcuttingspeedandwhatisthelaw?Theseandothersquestionshavenotyetintegratedcoferencesandexactdata.Forthisreason,choosegeneralmachinetool,fairlyusedworkpieceandtoolmaterialine
6、xperimentalresearchontherelationbetweenrakeangleandamplitudeofmachiningvibrationatdifferentcuttingspeed,andtheoryanalysisoftheresultisproducted,inanattempttogetreleventdatasandcorrespondingmaterial,andthenperfectreleventtheoryofrelationbetweenrakeangleandamplitud
7、eofvibration.Thisresearchprovidestheorecialbasisforadoptingresonablerakeangleinpractice,avoidinglargestmaplitudezoneandguaranteeingqualityinpractice.1ExperimentalMaterial,EquipmentandInstrument1.1WorkpieceMaterialDifferentmetalmaterialshavedifferentphysicalmechan
8、icalcharacters.Inthisexperiment,choosegeneralusedworkpiecematerial45#steelincylindricalmachining.1.2ToolMaterialAccordingtopiecematerial,chooseYT14hardalloytoo
