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1、Spindle Speed Selectionfor High-Speed Milling ofTitaniumAlloyCurvedSurfaceJian-weiMa, Zhen-yuanJia, Fu-jiWang & Fu-daNingJournal: MaterialsandManufacturingProcessesVolume29,Issue3,March2014,pages364-369Publishedonline:4Mar2014Thedevelopmentofhigh-speedmillingtechnologyprovidesaneffectiveproc
2、essingmethodfortitaniumalloycurvedsurfacewithhighquality,andthespindlespeedisanimportantmachiningparameterforthehigh-speedmillingoftitaniumalloycurvedsurface.Thevariationofthegeometricfeaturesofthetitaniumalloycurvedsurfaceresultsinthesharpfluctuationofthecuttingforceaswellasthevibrationofma
3、chinetool,whichnotonlymakesasevereimpactonthesurfacemachiningqualityandthetoollifebutalsogreatlyaffectstheefficiencyofthehigh-speedmilling.Anexperimentalstudyiscarriedouttodeterminethespindlespeedforhigh-speedmillingofthetitaniumalloycurvedsurfacebasedonthecuttingforce.Theexperimentalresults
4、indicatethatinhigh-speedmillingprocess,thecuttingforceisassociatedwiththegeometricfeatureofthecurvedsurfaceandthechangeofcuttingforceisrelativelysmoothwhenthespindlespeedisintherangefrom9000to13,000rpmforthemachiningoftitaniumalloycurvedsurface.高速铣削技术的发展提供了一个有效的处理方法对钛合金曲面与高品质,和主轴转速是一个重要的加工参数
5、的高速铣削钛合金曲面。的变化钛合金曲面的几何特性导致切削力的大幅波动以及机床的振动,这不仅使严重影响表面加工质量和刀具寿命也大大影响高速铣削的效率。一个实验研究确定主轴转速进行高速铣削钛合金的曲面基于切削力。实验结果表明,在高速铣削过程中切削力是与曲面的几何特征和切削力的变化相对平稳时,主轴转速的范围从9000到13000rpm钛合金曲面的加工。SUPPRESSIONOFPERIODDOUBLINGCHATTERIN HIGH-SPEED MILLING BYSPINDLE SPEEDVARIATIONSébastienSeguy, TamásInsperger, Lionel
6、Arnaud, GillesDessein & GrégoirePeignéJournal: MachiningScienceandTechnologyVolume15,Issue2,April2011,pages153-171Publishedonline:25May2011Spindlespeedvariationisawellknowntechniquetosuppressregenerativemachinetoolvibrations,butitisusuallyconsideredtobeeffectiveonlyforlowspindlespeeds.Inthec
7、urrentpaper,spindlespeedvariationisappliedtothehighspeedmillingprocess,atthespindlespeedswheretheconstantspeedcuttingresultsinperioddoublingchatter.Thestabilityanalysisoftriangularandsinusoidalshapevariationsismadenumericallywiththesemi-discretizat
