1、BRITISH STANDARD AEROSPACE SERIES BS EN 2071:2002 Sheets in aluminium and aluminium alloys Thickness 0,25 mm a 6m m Dimensions The European Standard EN 2071:2001 has the status of a British Standard ICS 49.025.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 2071:2002 T
2、his British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 07 January 2002 BSI 07 January 2002 ISBN 0 580 38026 2 National foreword This British Standard i
3、s the official English language version of EN 2071:2001. The UK participation in its preparation was entrusted to Technical Committee ACE/61, Inspection and testing requirements for aerospace metallic materials, which has the responsibility to: A list of organizations represented on this committee c
4、an be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using th
5、e “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from
6、 legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of
7、pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 7, and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPE
8、NNE EUROPISCHENORM EN2071 December2001 ICS49.025.20 Englishversion AerospaceseriesSheetsinaluminiumandaluminiumalloys Thickness0,25mm a 6mmDimensions SriearospatialeTlesenaluminiumetalliages daluminiumEpaisseurs0,25mm a 6mm Dimensions LuftundRaumfahrtBlecheausAluminiumund AluminiumlegierungenDicken0
9、,25mm a 6mm Mae ThisEuropeanStandardwasapprovedbyCENon2May2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational s
10、tandardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe off
11、icial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPIS
12、CHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN2071:2001EEN2071:2001(E) 2 Foreword ThisEuropeanStandardhasbeenpreparedbytheEuropeanAssociationofAerospaceManufacturers (AECMA).
13、AfterinquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhas receivedtheapprovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesof AECMA,priortoitspresentationtoCEN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanid
14、entical textorbyendorsement,atthelatestbyJune2002,andconflictingnationalstandardsshallbewithdrawnat thelatestbyJune2002. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark
15、, Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal, Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN2071:2001(E) 3 0 Introduction ThisstandardispartoftheseriesofENmetallicmaterialstandardsforaerospaceapplications.Thegeneral organizationofthisseriesisdescribedi
16、nEN4258. 1 Scope Thisstandardspecifiesthedimensionsandtolerancesof: Sheets inaluminiumandaluminiumalloys Thickness0,25mm a 6mm foraerospaceapplications. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreferenceprovisionsfromotherpublications. Thesenormativereferencesarecitedatt
17、heappropriateplacesinthetextandthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthe latesteditionofthepublicationreferredtoapplies. EN3848 Aeros
18、paceseriesSemifinishedmetallicproductsMethodofmeasuringformdeviations EN4258 AerospaceseriesMetallicmaterialsGeneralorganizationofstandardizationLinks betweentypesofENstandardsandtheiruse 3 Form Seefigure1. Figure1EN2071:2001(E) 4 4 Recommendeddimensionsandmass Seetable1. Table1 Nominal a mm Typical
19、format b mm mm Maximum width b mm Maximum length mm Massperunitarea a kg/m 2 0,25 800 2000 and 800 2500 1000 4500 0,70 0,3 800 2000 and 800 2500 1000 4500 0,84 0,4 1000 2000 and 1250 2500 1250 4500 1,12 0,5 1000 2000 and 1250 2500 1250 4500 1,40 0,6 1000 2000 and 1250 2500 1400 5000 1,68 0,8 1000 20
20、00 and 1250 2500 1400 5000 2,24 1,0 1000 2000 and 1250 2500 1600 6000 2,80 1,2 1000 2000 and 1250 2500 1600 6000 3,36 1,4 1000 2000 and 1250 2500 1600 6000 3,92 1,6 1000 2000 and 1250 2500 2000 10000 4,48 1,8 1000 2000 and 1250 2500 2000 10000 5,04 2,0 1000 2000 and 1250 2500 2000 10000 5,60 2,5 100
21、0 2000 and 1250 2500 2000 10000 7,00 3,0 1000 2000 and 1250 2500 2000 10000 8,40 3,2 1000 2000 and 1250 2500 2000 10000 8,96 4,0 1000 2000 and 1250 2500 2000 10000 11,20 5,0 1000 2000 and 1250 2500 2000 10000 14,00 6,0 1000 2000 and 1250 2500 2200 10000 16,80 a Forinformation,calculatedwithadensityo
22、f2,8kg/dm 3 5 Tolerances 5.1 Dimensionaltolerances 5.1.1 Thickness Seetable2. Measurementsshallbetakenatleast12mmfromtheedge.EN2071:2001(E) 5 Table2 Dimensionsinmillimetres Tolerancesforwidth: Thickness 800 b 1000 1000 b 1250 1250 b 1600 1600 b 2000 2000 b 2200 0,25 a 0,4 0,03 0,04 0,05 0,06 0,4 a 0
23、,6 0,04 0,04 0,06 0,07 0,6 a 0,8 0,05 0,05 0,06 0,08 0,10 0,8 a 1,2 0,05 0,06 0,06 0,09 0,12 1,2 a 1,4 0,06 0,08 0,08 0,10 0,16 1,4 a 1,6 0,07 0,10 0,10 0,12 0,16 1,6 a 1,8 0,07 0,10 0,10 0,13 0,16 1,8 a 2,5 0,08 0,10 0,10 0,14 0,18 2,5 a 3,0 0,09 0,10 0,10 0,15 0,18 3,0 a 3,2 0,10 0,13 0,13 0,18 0,
24、20 3,2 a 4,0 0,10 0,13 0,13 0,20 0,25 4,0 a 5,0 0,12 0,16 0,18 0,23 0,30 5,0 a 6,0 0,16 0,20 0,23 0,28 0,35 a =6,0 0,20 0,24 0,28 0,33 0,35 5.1.2 Width Seetable3. Table3 Dimensionsinmillimetres Tolerancesforthickness: Width 0,25 a 1,5 1,5 a 3,0 3,0 a 6,0 800 b 1250 5 0 6 0 7 0 1250 b 1600 7 0 8 0 10
25、 0 1600 b 2200 10 0 10 0 10 0EN2071:2001(E) 6 5.1.3 Length Seetable4. Table4 Dimensionsinmillimetres Length Tolerancesforthickness: All 2000 5 0 2000 5000 10 0 5000 10000 0,002 0 5.2 Geometrictolerances 5.2.1 Squareness 5.2.1.1 Methodofmeasurement SeeEN3848. 5.2.1.2 Tolerances Seetable5. Table5 Dime
26、nsionsinmillimetres Length Maximumdifferencesinthelengthsofdiagonalsforall widthsandthicknesses 2000 5 2000 5000 10 5000 10000 0,002 5.2.2 Lateralcurvature 5.2.2.1 Methodofmeasurementandsymbol SeeEN3848. 5.2.2.2 Tolerances Seetable6. Thelateralcurvaturemaybeconcaveorconvex.EN2071:2001(E) 7 Table6 Di
27、mensionsinmillimetres Lateralcurvature Fon: Thickness width length 0,25 a 6,0 0,002 b 0,002 5.2.3 Flatness Notapplicabletosheetsintheannealedcondition. 5.2.3.1 Methodofmeasurementandsymbols SeeEN3848. 5.2.3.2 Tolerances Seetable7. Table7 Dimensionsinmillimetres Flatnessdeviation ffor: width Thicknes
28、s b 1000 1000 b 2000 2000 b 2200 0,25 a 3,0 0,004 b 0,0045 b 0,005 b 3,0 a 6,0 0,003 b 0,0035 b 0,004 b continued Table7 (concluded) Dimensionsinmillimetres Flatnessdeviation ffor: length Thickness 1000 1000 2000 2000 4000 4000 10000 0,25 a 3,0 0,004 0,0045 0,005 0,006 3,0 a 6,0 0,003 0,0035 0,004 0
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