AGMA-923-B05-齿轮冶金质量规范

AGMAINFORMATIONSHEET(ThisInformationSheetisNOTanAGMAStandard)AGMA923-B05AGMA923-B05AMERICANGEARMANUFACTURERSASSOCIATIONMetallurgicalSpecificationsforSteelGearingiiMetallurgicalSpecificationsforSteelGearingAGMA923--B05CAUTIONNOTICE:AGMAtechnicalpublicationsaresubjecttoconstantimprovement,revision,orwithdrawalasdictatedbyexperience.AnypersonwhoreferstoanyAGMAtechnicalpublicationshouldbesurethatthepublicationisthelatestavailablefromtheAs-sociationonthesubjectmatter.[Tablesorotherself--supportingsectionsmaybequotedorextracted.Citationsshouldread:SeeAGMA923--B05,MetallurgicalSpecificationsforSteelGearing,publishedbytheAmericanGearManufacturersAssociation,500MontgomeryStreet,Suite350,Alexandria,Virginia22314,]ApprovedMay3,2005ABSTRACTThisdocumentidentifiesmetallurgicalqualitycharacteristicswhichareimportanttotheperformanceofsteelgearing.TheAGMAgearratingstandardsidentifyperformancelevelsofgearingbyheattreatmentmethodandgradenumber.ForeachheattreatmentmethodandAGMAgradenumber,acceptancecriteriaaregivenforvariousmetallurgicalcharacteristicsidentifiedinthisdocument.PublishedbyAmericanGearManufacturersAssociation500MontgomeryStreet,Suite350,Alexandria,Virginia22314Copyright©2005byAmericanGearManufacturersAssociationAllrightsreserved.Nopartofthispublicationmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutpriorwrittenpermissionofthepublisher.PrintedintheUnitedStatesofAmericaISBN:1--55589--848--3AmericanGearManufacturersAssociationAGMA923--B05AMERICANGEARMANUFACTURERSASSOCIATIONiii©AGMA2005----AllrightsreservedContentsPageForewordiv...............................................................1Scope1.............................................................2Normativereferences1...............................................3Definitions3.........................................................4Procedures11.......................................................5Metallurgicalrequirements14..........................................Bibliography31...........................................................Tables1Metallurgicalcharacteristicsforthroughhardenedgearing15...............2Metallurgicalcharacteristicsforcarburizeandhardenedgearing17.........3Metallurgicalcharacteristicsforinductionorflamehardenedgearing22......4Metallurgicalcharacteristicsfornitridedgearing27........................Figures1Continuouscarbidenetwork4..........................................2Semi--continuouscarbidenetwork4.....................................3Discontinuouscarbides4..............................................4Dispersedcarbides4.................................................5Solidonshaftpinionblank5...........................................6Borestylegearingblank5.............................................7Discstylegearingblank5.............................................8Webstylegearblank6................................................9Intergranularoxidationincarburizedgearing7............................10Non--martensitictransformationproductsincarburizedgearing8...........11Temperedmartensiteand5%retainedausteniteincarburizedgearing10....12Temperedmartensiteand20%retainedausteniteincarburizedgearing10...13Temperedmartensiteand30%retainedausteniteincarburizedgearing10...14Variationsinhardeningpatternobtainableongearteethwithflameorinductionhardening26................................................AGMA923--B05AMERICANGEARMANUFACTURERSASSOCIATIONiv©AGMA2005----AllrightsreservedForeword[Theforeword,footnotesandannexes,ifany,inthisdocumentareprovidedforinformationalpurposesonlyandarenottobeconstruedasapartofAGMAInformationSheet923--B05,MetallurgicalSpecificationsforSteelGearing.]InNovember,1984,anadhocMetallurgyandGearRatingCommitteemettodefinethefactorsrequiredtoqualifythevariousmetallurgicalqualitygradesthatweretobeintroducedintothegearratingstandardthateventuallybecameANSI/AGMA2001--B88,FundamentalRatingFactorsandCalculationMethodsforInvoluteSpurandHelicalGearTeeth.InMay,1988,ANSI/AGMA6033--A88,StandardforMarinePropulsionGearUnits--Part1,Materials,waspublishedusingashortlistofmetallurgicalfactorsintableform.InSeptember,1988,ANSI/AGMA2001--B88waspublishedusingmetallurgicalfactorsintableform.StartinginJuly,1992,AGMArepresentativesparticipatedinwritingISO6336--5,CalculationofLoadCapacityofSpurandHelicalGears--Part5:StrengthandQualityofMaterials,whichwasamodificationofthetablesinANSI/AGMAandDINStandards.InFebruary,1993,AGMA6002--B93,DesignGuideforVehicleSpurandHelicalGears,waspublishedusingamodifiedversionofthetablesusedinANSI/AGMA2001--B88.InSeptember,1993,theAGMAMetallurgyandMaterialsCommitteeacceptedthetaskofconsolidatingthevarioustablestoavoidredundanciesandconflictingrequirements,andstartedworkonAGMA923--A00,MetallurgicalSpecificationsforSteelGearing.InJanuary,1995,arevisedANSI/AGMA2001--C95waspublishedusingaversionoftheANSI/AGMA2001--B88tablesasrevisedbytheAGMAHelicalGearRatingCommittee.InNovember,1997,arevisedANSI/AGMA2003--B97,RatingthePittingResistanceandBendingStrengthofGener