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首页 《铝及铝合金模锻件的尺寸偏差及加工余量》(The size deviation and mach…

《铝及铝合金模锻件的尺寸偏差及加工余量》(The size deviation and machining allowance forging pieces of aluminum and aluminum alloy).doc

《铝及铝合金模锻件的尺寸偏差及加工余量》(The size d…

Phyllis娥
2018-04-30 0人阅读 举报 0 0 暂无简介

简介:本文档为《《铝及铝合金模锻件的尺寸偏差及加工余量》(The size deviation and machining allowance forging pieces of aluminum and aluminum alloy)doc》,可适用于社会民生领域

《铝及铝合金模锻件的尺寸偏差及加工余量》(Thesizedeviationandmachiningallowanceforgingpiecesofaluminumandaluminumalloy)《铝及铝合金模锻件的尺寸偏差及加工余量》(Thesizedeviationandmachiningallowanceforgingpiecesofaluminumandaluminumalloy)"Thesizedeviationandmachiningallowanceforgingpiecesofaluminumandaluminumalloy"CompilationofnationalstandardmanuscriptreviewFirst,workbriefingtasksource"sizedeviationandmachiningallowance"piecesofaluminumandaluminumalloyforgingnationalstandardisthebasicstandardofaluminumandAluminumAlloydieinourcountrythecurrentnationalstandardeditionGBT"aluminumandAluminumAlloyforgingpiecesofthesizedeviationandmachiningallowance",becausethestandardageoflong,technicalindexislow,cannottoadapttotheneedsofourindustryandtherapiddevelopmentofaluminumandAluminumAlloyforgingproductsTherefore,therevisionofthenationalstandard,inordertomeettheneedsofdomesticandforeignmarketsandusersThenationalnonferrousmetalsStandardizationTechnicalCommitteeonnonferrousmetalsStandardCommitteeNoissueda"nationalstandardsizedeviationandmachiningallowance"piecesofaluminumandaluminumalloydieforgingdraftingtasks,andtotheSouthwestAluminum(Group)Co,Ltd,Chinesenonferrousmetalsindustrystandardmeasurementqualityresearchinstitute,NortheastLightAlloyCootherunitsforthedraftingunit,jointlydraftedTheprojectnamedTplanperiodismainworkprocessandcooperationunitInJulyth,,bythenationalnonferrouslightstandardcommitteehostedinShandongcityofYantaiprovinceoftheseriesofnationalstandardimplementationofthetaskswillbeheld,willsetupthestandardpreparationgroup,chiefeditor:SouthwestAluminum(Group)CoLtddeputyeditorunit:ChinaNonferrousMetalsIndustryStandardmeasurementqualityparticipatingunits:NortheastLightAlloyCoLtdandotherunitsaccordingtotheproductionanduseoftheexistingaluminumandaluminumalloyforgings,thedraftinggroupmadethedraftofthenationalstandardinSeptember,,andconsultedwiththerelevantunitsInNovemberth,,bytheNationalStandardCommitteepresidedoverthehearinginthelightcoloredChengduCity,thenationalstandardwillbeheld,meetingofthedraftinggroupproposed"draft"acarefulreview,andputsforwardsomesuggestionsaccordingtothespiritoftheChengduconference,thedraftinggrouprevisedtheoriginaldraftandputforwardthemanuscriptofthenationalstandardinMarch,Two,thestandardprincipleanddeterminethemaincontentofthestandardargumentThecompilingprincipleofstandardBasedontheoriginalGBTstandard,modifiedbytheEuropeanEN:"aluminumandAluminumAlloyforgingpartthird:revisionofdimensionandshapedeviation",maintainedhigherthantheEuropeanstandardsofindicators,tobelowtheEuropeanstandardindicators,modifytheequivalentEuropeanstandardargumentstodeterminethemaincontentofthestandardrangeThisstandardismainlyappliedtoaluminumandAluminumAlloyforgingsNotsuitableforfreeforgingandrollingforgingringdimensionaldeviationmodifythestructureandreplacementpartindexnamecombinesthesecondchapteroftheoriginalstandard"theclassificationofthedimensionofthedieforgingparts"andthethirdchapter"thestipulationanduseofthedeviation"intoachapterFortheoriginal,chapters,closecorrelation,dispersion,noteasytofindanduseCombinedintoonechapter,havetofindanduseindexmodifiedthe"sizeofthemoldcavity"and"thedimensionindependentofthemoldcavity"intheoriginalstandardto"noncrossmoldsize"and"crossmoldsize""Becauseanydimensionofdieforgingsisrelatedtothemoldcavity,thesizenameintheoriginalstandardisnotproperdiesize(theoriginalandthemoldcavitysizeanddeviation")thisstandardmadeamendmentstotheoriginalsizedefinition,isabouttheoriginal"withoutforgingdiestructuresizemismatchandundervoltageaffectstheamountofsizeisnotchangedto"crossoverthediesurface,andisnotaffectedbythestructureofdieforgingmouldunderpressureaffectstheamountof"sameastheoriginalstandard,theallowabledeviationofnoncrossmoldsizeisstilldividedintoA,BtwolevelThesameBlevelindicatorsofthisstandard,consistentwiththeoriginalstandardAindexofthestandardcontrolinEuropeEN:establishesthattheoriginalindexishigherthantheEuropeanstandard,theoriginalindexislowerthantheEuropeanstandard,andthemodificationisequivalenttoorhigherthantheEuropeanstandardTheoriginalgradeindexandEuropeanstandardcontrolasshownintableTablethesizeoftheoriginalnoncrossmodeandtheEuropeanstandarddeviationallowedacomparisonNoncrossdiesizeLAllowabledeviationofnoncrossdiesizeLAEuropeanEN:Lessthanorequalto>~>~Addtostrict()>~>~Addtostrict()>~Addtostrict()>~Addtostrict()>~>~>~>~>~>~>~>~>~>~>~Thestrictmodificationis()>~Thestrictmodificationis()>~(processed)>~(processed)>~(processed)>~(processed)>~()(processed)Note:thetableinredfontthatEuropeindexishigherthantheoriginalgradeindexthisstandardaccordingtothecomparisonofTable,someoftheindicatorsofstrictmodification,makestrictmodifiedaclassindexallmeettherequirementsofEuropeanEN:standarddiesize(theoriginalandthemoldcavitysizeanddeviation")thisstandardmodifiestheoriginalsizedefinition,andmodifiesthesizeoftheoriginal"crossdiesurfacedimensioning,whichisaffectedbythedieoffsetandtheunderpressure"to"thesizeacrosstheexcessivediesurfaceandthesizeofthedieundertheinfluenceoftheamountofpressure""sameastheoriginalstandard,theallowabledeviationofthecrossmoldsizeisstilldividedintoA,BtwolevelThesameBlevelindicatorsofthisstandard,consistentwiththeoriginalstandardalevelindexofthisstandardiscontrolledbyEuropeanEN:,theoriginalindexishigherthantheEuropeanstandard,theoriginalindexislowerthantheEuropeanstandard,andthemodificationisequivalenttoorhigherthantheEuropeanstandardTheoriginalgradeindexandEuropeanstandardcontrolasshownintableTablecrossmodelsizeallowscomparisonofunitdeviationandaformerEuropeanstandardforMMCrossdiesizeHTheprojectionarea(cm)acrossthediesizeallowabledeviationunderHLessthanorequalto>~>~>~>~>~>~>~>~>~>~>~>~Lessthanorequalto()()>~()()()()()()>~()()()()()()()>~()()()()()()>~()()()()()()()一,,()()()()()(),,()()()()()(),,()()()()()(),,(),,,,()(),,()()()(),,()()()()()()()()()(),,()()()()()()()()()()()(),,()()()()()()()()()()()()()(),,()()()()()(),,表中的红色字体表示欧洲标准指标比原一级严绿色字体表示欧洲指标对原一级松本标准根据表的对比进行部分指标的加严修改使加严修改后的一级指标全部达到欧洲en:标准的要求。注:对于H为,,栏中红色红色部分由于欧洲公差带比原一级松所以未修改。错移及偏差。modifythewrongindicationintheoriginalstandardTheerrorsinthestandardarecomparedwiththoseinEurope,asshownintableTabletheoffsetoftheforgingisinmillimetersMaximumnominalsizeLperpendiculartotheforgingdirectionAllowableoffsetNLessthanorequaltoLessthanorequalto>~Lessthan()>~Lessthan()>~Lessthan()>~Lessthan()>~Lessthanorequalto>~Lessthanorequalto>~LessthanorequaltoNote:theredfontpartofthetablerepresentstheEuropeanstandard,whichismorestringentthantheoriginalstandardaccordingtothestandardsofTablecomparison,willnotmeettheEuropeanstandardindex(redcontrastpart)ofsomeindicatorsandstrictmodificationforEuropeanindex,therevisedindextightenedalltheEuropeanEN:standardsobliquedimensionTheEuropeanstandardEN:doesnotspecifythedeviationoftheobliquedimensionAccordingtotheactualneedsofthedesignofthedieforgings,thisstandardstillretainsthedimensiondeviationoftheobliquedimension,andtheindexisconsistentwiththeoriginalstandardFilletradiusanddeviationofprocessTheoriginalstandardfortheradiusofnotmorethanmmoftheprocessfilletallowabledeviationinaccordancewithtable,forradiusgreaterthanmmprocessfilletradiusdeviationbythesupplyanddemandagreementandnoteinthedrawingsTheEuropeanstandardspecifiesthattheradiusoftheprocessfilletisallowedtobe:"nominalradius,nosmallmm""Therefore,theEuropeanstandardisadoptedinthisstandard,whichisstipulatedasfollows:theradiusoftheprocessfilletisnotallowedtoexceedthenominalradiusof,andnolessthanmmwhentherearespecialrequirements,bothsidesconsultandindicateinthediagramdieforginginclinationanddeviationThedraftdraftisequivalenttotheEuropeanstandardangle,noindexTherefore,thisstandardisconsistentwiththeoriginalstandardangleanddeviationTheoriginalstandardangle(nondraftEuropeanstandardangleisconsistent)andEuropeanEN:standarddeviationindex,sotheindex,thestandardtoretaintheoriginalstandardInaddition,deletionoftheoriginalstandarddeviationangleformyopiaalgorithm,approximatemethodina=C*sinbetaisnotaccurate,thecalculatedresultisnotstandardvalue,isnotconducivetotheimplementationofthestandard,sointhisrevisiondeletedthecontentWarpageofdieforgingsThewarpageoftheoriginalstandarddieforgings(equivalenttotheroughnessorcurvatureinEuropeanstandards)isequivalenttothatoftheEuropeanEN:standardandisslightlymorestringentthantheEuropeanstandardTherefore,thisstandardadoptstheoriginalstandardindexResidualburrsofdieforgingsIntheoriginalstandard,theresidualburrsofthedieforgings,thetrimmingdieforgingsandthenontrimmingdieforgingsareallthesamespecificationsInfact,thetrimmingdieforgingsshouldbestrict,andthetrimmingdieforgingsshouldbelooseTherefore,thisstandarddividestheamountofresidualburrsintotwotypesaccordingtothetrimmingdieforgingsandthetrimmingdieforgingsthisstandardregardstheoriginalstandardastheindexoftrimmingdieforgings,andaddstheindexesofnontrimmingdieforgings,asshownintableTabletheresidualburrsofdieforgingsareinmillimetersMaximumnominalsizeLperpendiculartotheforgingdirectionPermissibleresidualburrsTrimmingdieforgingNontrimmingdieforgings(XinZeng)LessthanorequaltoLessthanorequaltoLessthanorequalto>~LessthanorequaltoLessthanorequalto>~LessthanorequaltoLessthanorequalto>~Lessthan()Lessthanorequalto>~Lessthan()Lessthanorequalto~Lessthan()Lessthanorequalto~Lessthan()Lessthanorequalto~Lessthan()LessthanorequaltostandardtrimmingdieforgingscomparedwithEuropeanEN:standards,morestringentthanEuropeanstandards,asshowninTable,greenfontsforEuropeanstandardslowerthanthestandardindicatorsofthisstandardTheconvexpeaksanddepressionsoftheejectormarksThepeakandsagindexesoftheejectormarksintheoriginalstandardareequivalenttotheEuropeanstandardsTherefore,thestandardadoptedtheoriginalstandardindexMachiningallowanceofdieforgingsThemachiningmarginindicesinthestandardaresomewhatmorestringentthantheEuropeanEN:standard,somelessthantheEuropeanEN:standardAsshowninTable,theredfontrepresentstheEuropeanstandardmorestringentthantheoriginalstandard,andthegreenfontrepresentstheEuropeanstandardthantheoriginalstandardTablemachiningallowanceofdieforgingsThemaximumcrossdiesizeforgingsornoncrossdiesizeNominaldimensionofsinglemachiningallowanceaLessthanorequaltoOne>~()>~()>~()>~Three>~()>~()>~()>~()>~()>~()>~Eight>~()>~TenAaccordingtothemachiningneeds,thetablemaybeappropriatetoincreaseordecreasetheresidualvaluethisstandardwillbetheEuropeanstandardstricterthantheoriginalstandardindex(redfont)astherevisedindexofthisstandard,theoriginalstandardstrictlyEuropeanstandardindicators(greencontrastpart)remainunchangedBecauseofthisstandard,thetechnicalindicatorsthantheoriginalstandardandstrictEuropeanstandardsThreeAnalysisofstandardlevelThisstandardisbasedontheoriginalGBTmodifiedbytheEuropeanEN:standard,themaintechnicalindexesreachtheEuropeanEN:standards,someindicatorsslightlymorestringentthantheEN:standard,canmeettheneedsofdomesticandexportproductsinEurope,thestandardofwaterreachestheinternationaladvancedlevelFour,thestandardofinnovationthisstandardisrevisedbyEuropeanEN:standard,whoseindexesmeetorexceedtherequirementsofEuropeanEN:standard,andimprovethestandardlevel,andcanmeettheneedsofdomesticandexportedproductstoeuropethestandarddeletionoftheoriginalangledeviationmyopiacalculationmethod,isconducivetothearbitrationandacceptanceofproductsthisstandardmodifiestheschematicdiagramoftheoriginalstandard,whichisbeneficialtotheuseofthestandardandtheacceptanceandarbitrationoftheproductFourCoordinationwithcurrentlaws,regulations,regulationsandrelatedstandards,especiallymandatorystandardsAtpresent,China'sexisting"GBT"sizedeviationandmachiningallowanceofaluminumandaluminumalloydieforgingdieforgingstandarddeviationofonlytheversionofnationalstandard,thisstandardisarevisedversionoftheversionoftherevised,GBTcannotonlyreplacetheversionofthenationalstandards,andmoreadvancedtechnicalindicatorsThisstandardbemorecompatiblewiththecurrentlawsandregulations,regulationsandrelatedstandardsAftertreatment,andaccordingtofivemajordifferencesofopinion(none)Six,asamandatorynationalstandardrecommendationsThisstandarddoesnotrecommendasamandatorystandard,andrecommendedasarecommendedstandardSeven,theimplementationofstandardsrequirementsandmeasuresrecommendedThisstandardistosatisfythesizedeviationofaluminumandAluminumAlloydieforgingsforthepurpose,tocarryoutacomprehensiveinvestigationoncurrentsituationoftheuseofcombinationofChina'smanufacturersandusers,andaccordingtotheneedsofthedomesticmarketandexportedtoEurope,accordingtoEuropeanstandardrevisionTherefore,afterthereleaseofthisstandard,enterprisesshouldactivelypromoteandimplement,andimmediatelyadoptnewstandardsordering,inordertoensureproductquality,meettheneedsofthedomesticmarketandproductexportsEight,expectedeffectThisseriesisarevisedversionoftheversionoftheGBTstandard,combinedwiththestatusquoofChina'smanufacturersandusersoftheamendment,referringtotheEuropeanEN:standardrevision,therevisedstandardismoreadvancedandreasonable,improvetheoverallqualitylevelofdieforgingproductsofaluminumandAluminumAlloyinChina,improvetheproductsinthedomesticandforeignmarketsandproductsinEuropeandotherforeignproductscompetitivenessandbringgreateconomicbenefitstotheenterprise,atthesametime,Aftertherevisionofthisstandard,itcangreatlyreducetheimportofEuropeanandotherforeignproducts,savetheforeignexchangeforthecountry,andbenefittheexportofproducts,andincreaseforeignexchangeforthecountry,whichhasgreatsocialbenefits"Thesizedeviationandmachiningallowance"piecesofaluminumandaluminumalloyforgingnationalstandarddraftinggroupMarch,OneOne

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《铝及铝合金模锻件的尺寸偏差及加工余量》(The size deviation and machining allowance forging pieces of aluminum and aluminum alloy)

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