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,,210016:,,,,;,,,:;;;:TG506:1004132(2004)08067005StudyonMachiningDeformationsandTheirControlApproachesoftheThin-webinEndMillingWuKaiHeNingLiaoWenheZhaoWeiNanjingUniversityofAeronauticsandAstranautics,Nanjing,210016Abstract:Thispapermainlystudiedthemachiningdeformationsofthethin-webstructurecompo2nentsinendmilling.Bythecuttingforcemodel,FEAmodelandexperiments,themachiningdeformationrulesofthethin-webinendmillingwereanalyzedandsummarizedandthedeformationcontrolapproacheswerepresentedbasedonthetheoreticalanalyses.Itisshownthatthemachiningdeformationrulesofthethin-webarerelatedtothesizeofthethin-web,tooltrajectoryandthecuttingparameters.Thebigcut2tingdepthtechnologyandthestepcirculartechnologypresentedinthepapermakethemostoftherigidityofthethin-web;themachiningdeformationscanbecontrolledeffectivelyusingthetwoapproaches.Keywords:thin-web;cutting;machiningdeformation;control:20030704:20031023:(00H52068)0,,,[1,2];[3,4];[5,6],,,,,,;,,;11,1,1,,07615820044[1],,[7],,Z,Z[7,8],ZFz=KAKTfzX2X1sin/tanhxdx=KAKTfzR(-costanhxX2R+costanhxX1R)(1),KTKA;fz;;hx;R;X1X2,(1),,,,,,,,,,,,,,,,,2(1)aeR,aeR2,EDC,,E,DC(2)3,3,,B(),LA,B,AB(3)aeR,,AB,(1),[8]22.14,,,,,4,,,,,,,176,,,ae,aeR,;aeR,,,,,SHELL,,,,,,,(),,,,2.2,,:L=80mm,W=60mm,t=3mm,ap=115mm,ae=8mm,fz=0115mm,n=15000r/min,,12mm,30,(4),ABCDEFGH;,AFG55,,,,,,,:(1),,()5ex=20mm(419)(2),(a)A(b)B(c)C(d)D(e)E(f)F(g)G(h)H1.2.5,;,,5e()5f()(3)203(45f)(,),,,,(4),,(4AB);,,,,,,(4H)(5),,[8],27615820044,,,,,,(ap)R=5mm,ae=715mm,fz=011mm,n=10000r/min,2mm,150mm100mm,015mm1mm115mm2mm215mm3mm315mm4mm415mm,66,2mm,;2mm,,415mm015mm,,,,,,,,,;,,;,,,,ap33.1MicronUCP710;,12mm,,hx45;70757,AB76mm68mm20mmA,B,2mm:Aae=5mm,n=15000r/min,f=3m/min,ap=6mm;Bae=5mm,n=15000r/min,f=3m/min,ap=3mm,7,XYZ,8(XY)(a)Y(b)X1.ap=3mm2.ap=6mm88,-20mm,,,ap=6mmap=3mm,,,ap,,,ap,,,,,,;,,3.2,,,,9,ABC376AA1A2AnA,BCA1A2AnB1B2BnC1C2Cn,A,BC,,B,C,,,:9()MicronUCP710;,10mm,r=115mm7075136mm,70mm,20mm,2mmA96mm,30mm,B116mm,50mm,C136mm,70mmap=3mm,ae=5mm,f=3m/min,n=15000r/minXY,,10(a)Y(b)X1.2.3.10,,,,4(1),(2),,,,,,,,,(3)(),,,,:[1]KlineWA,DevorRE,LindbergR.ThePredictionofCuttingForcesinEndMillingwithApplicationtoCorneringCuts.InternationalJournalofMachineToolDesignandResearch,1982,22(1):722[2]SutherlJW,DevorRE.AnImprovedMethodforCuttingForceandSurfaceErrorPredictioninFlexibleEndMillingSystems.Trans.ASMEJ.Eng.Ind.,1986,108:269279[3]TsaiJS,LiaoCL.FiniteElementModelingofStaticSurfaceErrorsinthePeripheralMillingofThin-walledWorkpieces.JournalofMaterialsProcessingTechnology,1999,94:235246[4]BudakE,AltintasY.ModelingandAvoidanceofStaticFormErrorsinPeripheralMillingofPlates.Int.J.Mach.ToolsManufact.Ind.,1995,35(3):459476[5]DevorRE,SutherlandJW,KlineWA.ControlofSurfaceErrorinEndMilling.EleventhNorthAmeri2canManufacturingResearchConferenceProceedings,WI,USA,NAMRI/SME,1983[6],,.HighAccurateMa2chiningofThinWallShapeWorkpiecebyEndMill.(C),1999,65(632):415420[7],,,..,2002,34(6):553556[8].:[].:,2002():,,19726,,1959,,1965,,197747615820044