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空心涡轮叶片精铸蜡型陶芯定位元件尺寸计算方法.docx

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空心涡轮叶片精铸蜡型陶芯定位元件尺寸计算方法 Abstract Theprecisioncastingofhollowturbinebladesisoneofthekeymanufacturingprocessesintheproductionofgasturbineengines.Theuseofceramiccoresinthecastingprocessisanindispensablemethodtoachievethegeometricaccuracyanddimensionalrequirementsoftheblades.Inthispaper,weproposeacalculationmethodforthepositioningelementsoftheprecisioncastingofhollowturbinebladesusingwaxpatternsandceramiccores.Themethodinvolvestheanalysisofthegeometricparametersoftheblade,thewaxpattern,andtheceramiccore,thedeterminationofthedesignstructureanddimensionsofthepositioningelements,andtheverificationoftheeffectivenessofthemethodthroughtrialproduction.Theproposedmethodprovidesavaluablereferenceforthedesignanddevelopmentoftheprecisioncastingprocessofhollowturbineblades. Introduction Hollowturbinebladesarecriticalcomponentsinmoderngasturbineengines,andtheirprecisioncastingisakeymanufacturingprocess.Theuseofceramiccoresinthecastingprocessiscriticaltoachievinghighdimensionalaccuracyandtheintricategeometryrequiredforthehollowturbineblades.Theuseofadvancedprecisionmanufacturingmethodsandequipment,suchas3Dprinting,hassignificantlyimprovedtheaccuracyandefficiencyoftheceramiccoredesignandproductionprocess.However,theprecisionoftheceramiccorealoneisnotsufficienttoensurethedimensionalaccuracyofthefinalproduct.Thecarefuldesignandfabricationofthewaxpatternandtheaccuratepositioningoftheceramiccoreareequallyimportantintheprecisioncastingprocess. Intheprecisioncastingprocessofhollowturbineblades,thepositioningelementsplayacrucialroleinensuringthedimensionalaccuracyofthefinalproduct.Thepositioningelementsareusedtoaccuratelypositiontheceramiccoreinthewaxpattern,ensuringthatthecoreisalignedwiththewaxpatternandthattherequiredgapismaintainedbetweenthecoreandthewaxpattern.Thedesignandfabricationofthepositioningelementsmusttakeintoaccountthecomplexgeometryoftheblade,thewaxpattern,andtheceramiccoretoensurehighaccuracyandconsistencyinthecastingprocess. Inthispaper,weproposeacalculationmethodfortheposit