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伞齿轮的粉末精密锻造工艺(下) Title:PowderMetallurgyPrecisionForgingProcessofUmbrellaGears Abstract: Theproductionofprecisiongearswithcomplexgeometriesandhigh-performancerequirementshasalwaysbeenachallengeinthemanufacturingindustry.Theumbrellagear,asanessentialcomponentinvariousmechanicalsystems,requiresareliablemanufacturingmethodthatcanproducehighprecisiongearswithexcellentmechanicalproperties.Powdermetallurgyprecisionforgingisanadvancedmanufacturingprocessthathasgainedincreasingpopularityduetoitsabilitytoproducecomplexshapedcomponentswithsuperiormechanicalproperties.Thispaperaimstoexplorethepowdermetallurgyprecisionforgingprocessofumbrellagears,discussingitsadvantages,challenges,andfutureprospects. Introduction: Umbrellagearsareextensivelyusedinawiderangeofapplications,includingautomotivesystems,industrialmachinery,andpowertransmissionsystems.Thesegearsareknownfortheiruniquetoothprofile,whichinvolvesbothconcaveandconvexsurfaces.Thecomplextoothgeometryofumbrellagearsmakestheirmanufacturingparticularlychallenging.Traditionalgearmanufacturingprocesses,suchasmachiningandcasting,oftenstruggletoachievetherequiredprecisionandmechanicalproperties. Powdermetallurgyprecisionforgingoffersapromisingalternativefortheproductionofumbrellagears.Thisprocessinvolvesthecombinationofpowdermetallurgyandprecisionforgingtechniques,whichallowsfortheproductionofnear-netshapegearswithexcellentdimensionalaccuracyandmechanicalproperties.Moreover,theutilizationofpowdersenablestheproductionofcomplexgeometries,includingtheintricatetoothprofileofumbrellagears. AdvantagesofPowderMetallurgyPrecisionForging: 1.ImprovedMaterialUtilization:Powdermetallurgyenablestheprecisecontrolofmaterialcomposition,resultinginhigh-qualitygearswithdesiredmechanicalproperties.Thematerialutilizationinpowdermetallurgyprecisionforgingissignificantlyhighercomparedtoconventionalmanufacturingprocesses,reducingbothwasteandmaterialcosts. 2.EnhancedMechanicalProperties:Throughthecompactionandsinteringprocess,powdermetallurgygearsexhibitim