DIN-509-2006--技术制图.退刀槽.类型和尺寸

December2006DEUTSCHENORMEnglishpricegroup9NopartofthistranslationmaybereproducedwithoutpriorpermissionofDINDeutschesInstitutfürNormunge.V.,Berlin.BeuthVerlagGmbH,10772Berlin,Germany,hastheexclusiverightofsaleforGermanStandards(DIN-Normen).ICS01.100.20;25.020!$J:F1392335–Undercuts–TypesanddimensionsTechnischeZeichnungen–Freistiche–Formen,Maße©SupersedesDIN509:1998-06:2006-122ForewordThisstandardhasbeenpreparedbytheNormenausschussTechnischeGrundlagen(NATG)(FundamentalTechnicalStandardsCommittee),Section6“TechnicalProductDocumentation”,TechnicalCommitteeNA152-06-05-AA“TechnicalDrawing”,withthecooperationofexpertsfromtheNormenausschussMaschinenbau(NAM)andNormenausschussWerkzeugeundSpannzeuge(FWS)(MechanicalEngineering,andToolsandClampingDevicesStandardsCommittees,respectively).AmendmentsThisstandarddiffersfromDIN509:1998-06asfollows:a)Thetitlenowincludestheintroductoryelement“Technicaldrawings”.b)Themachiningallowancesymbol“z”hasbeenreplacedbythesymbols“z1”and“z2”.c)InFigure4themachiningallowancesindicatedarenowthesamesize.d)InFigure5thedimensions“g”and“f”havebeendeleted.e)InFigure6thesymbolforcounterbore“a/2”hasbeenchangedto“a”.f)Figures7,8,9and10areinadifferentorder.g)Inclause9,example2hasbeencorrectedtoread“UndercutE1,2×0,2”.h)InFigures9and10(formerly7and8),Details“X”and“Y”,thetolerance“±0,1”hasbeenaddedto“R1,2”.i)InFigures9and10(formerly7and8)theroughnessdatahavebeendeleted.j)Table1hasbeenrearranged.k)InTable1thevaluesforradiiarenowprecededbyan“R”.l)InTable1thevaluefordimension“f”fortypeGundercutshasbeencorrectedto“0,9”.m)InTable1thevaluefordimension“f”forUndercutH1,2×0,3hasbeencorrectedto“2,4”.n)InTable1thevaluefordimension“t2”forUndercutF4×0,5isnowincluded.o)InTable1thevaluefordimension“g”forUndercutG0,4×0,2hasbeencorrectedto“1,1”.p)InTable2dimensions“e1”and“e2”arenowincludedinonecolumnfortypeHundercuts,astheyareequallylong.q)Table2hasbeenrearranged.r)InTable3thevaluesfordimension“a”havebeendividedinhalfandre-calculated.s)Inclause5surfaceroughnessspecificationshavebeenbroughtinlinewithDINENISO1302.t)Inclause6thesecondexamplenowincludesthedesignation“MRR”(“materialremovalrequired”)inaccordancewithDINENISO1302.DIN509:2006-123u)Clause9nowmakesreferencetothepreferredtypeoflinefordrawings,aswellastothefactthatthedesignationistobegiveninconjunctionwithaleaderlineandareferenceline.v)Referenceshavebeenupdated.w)Thestandardhasbeeneditoriallyrevised.PreviouseditionsDIN509:1956-04,1966-01,1966,08,1998-06ForewordFormsanddimensionsoftypeGandHundercutsconformtothoseforindexableinsertsasinDINISO6987andDIN4969-1(typeGrhombicinserts)andasinDINISO6987,DIN4968andDIN4969-1(typeHtriangularinserts).Itiseconomicallyexpedienttousetheaboveinsertstoproducetheundercutsspecifiedinthisstandard.AlthoughFigures1to6showundercutsforshaftsandaxles,thenumericalvaluesspecifiedherealsoapplytoboresbyanalogy.AllradiispecifiedinthisstandardareinaccordancewithDIN250.1ScopeThisstandardappliestoundercutsonturnedpartsandinbores,andhelpsreducethevarietyoftoolsneededtoproducesuchundercuts.2NormativereferencesThefollowingreferenceddocumentsareindispensablefortheapplicationofthisdocument.Fordatedreferences,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.DINENISO1302,GeometricalProductSpecifications(GPS)—IndicationofsurfacetextureintechnicalproductdocumentationDINISO128-22,Technicaldrawings—Generalprinciplesofpresentation—Part22:BasicconventionsandapplicationsforleaderlinesandreferencelinesDINISO128-24,Technicaldrawings—Generalprinciplesofpresentation—Part24:LinesonmechanicalengineeringdrawingsDIN509:2006-1243TermsanddefinitionsForthepurposesofthisstandardthefollowingtermapplies.undercutclearancegrooveofspecifiedformanddimensionscreatedbyremovingmaterialataninnercornerofarotationallysymmetricworkpieceandwhichisnecessaryforsubsequentmachiningandassemblywithmatingparts4Dimensions4.1TypeEundercutsTypeEundercutsaresuitablewheretheplanarsurfaceisnotsubjectedtohighfatigueloadsandwherethecylindricalsurfacewillbesubsequentlymachinedifnecessary.Theyarealsosuitablewherematingpartshavearelativelylargecounterboreorwillnotbeincontactwiththeplanarsurface.Keyd1workpiecediameterfwidthofundercutrradiusofundercutt1depthofrecessz1machiningallowanceFigure1—UndercutforworkpieceswithcylindricalsurfaceintendedforsubsequentmachiningDIN509:2006-1254.2TypeFundercutsTypeFundercutsaretobeusedonworkpieceswithsurfacesthatareperpendiculartoeachotherandwillbesubsequentlymachined,ifnecessary.Keyd1workpiecediameterf,gwidthofundercutrradiusofundercutt1,t2depthofrecessz1,z2machiningallowancesFigure2—Undercutforworkpieceswithplanarandcylindricalsurfacesintendedforsubsequentmachining4.3TypeGundercutsTypeGundercutsaretobeusedonworkpieceswhicharenotsubjectedtohighfatigueloadsandwhereasmallincludedangleisrequired.Keyd1workpiecediameterf,gw