1、BRITISH STANDARD AEROSPACE SERIES BS EN 2045:2001 Square bars, drawn, in aluminium and aluminium alloys Tolerance class h 11 Thickness 6mm a 50 mm Dimensions The European Standard EN 2045:2001 has the status of a British Standard ICS 49.025.20; 49.035 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERM
2、ITTED BY COPYRIGHT LAWBS EN 2045:2001 This 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 24 December 2001 BSI 24 December 2001 ISBN 0 580 37991 4
3、National foreword This British Standard is the official English language version of EN 2045:2001. 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 orga
4、nizations represented on this committee can 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 Standa
5、rds Correspondence Index”, or by using the “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 Standar
6、d does not of itself confer immunity from 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 a
7、nd promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since
8、publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN2045 December2001 ICS49.025.20 Englishversion AerospaceseriesSquarebars,drawninaluminuimand aluminiumalloysToleranceclassh11Thickness6mm a 50mmDimensions SriearospatialeBarrescarres,tiresenaluminium etalliagesdalumini
9、umClassedetolranceh11 Epaisseurs6mm a 50mmDimensions LuftundRaumfahrtVierkantstangen,gezogenaus AluminiumundAluminiumlegierungenToleranzklasseh 11Dicken6mm a 50mmMae ThisEuropeanStandardwasapprovedbyCENon2May2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatethecondit
10、ionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aver
11、sioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Lu
12、xembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnatio
13、nalMembers. Ref.No.EN2045:2001EEN2045:2001(E) 2 Foreword ThisEuropeanStandardhasbeenpreparedbytheEuropeanAssociationofAerospaceManufacturers (AECMA). AfterinquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhas receivedtheapprovaloftheNationalAssociationsandtheOfficialSe
14、rvicesofthemembercountriesof AECMA,priortoitspresentationtoCEN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidentical textorbyendorsement,atthelatestbyJune2002,andconflictingnationalstandardsshallbewithdrawnat thelatestbyJune2002. AccordingtotheCEN/CENELECInte
15、rnalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark, Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal, Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN2045:2001(
16、E) 3 0Introduction ThisstandardispartoftheseriesofENmetallicmaterialstandardsforaerospaceapplications.Thegeneral organizationofthisseriesisdescribedinEN4258. 1 Scope Thisstandardspecifiesthedimensionsandtolerancesof: Squarebars,drawn inaluminiumandaluminiumalloys Toleranceclassh11 Thickness6mm a 50m
17、m foraerospaceapplications. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreferenceprovisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyof
18、thesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthe latesteditionofthepublicationreferredtoapplies. EN3848 AerospaceseriesSemifinishedmetallicproductsMethodofmeasuringformdeviations EN4258 AerospaceseriesMetallicmaterialsGeneralorganizat
19、ionofstandardizationLinks betweentypesofENstandardsandtheiruse 3 Form Seefigure1. Figure1EN2045:2001(E) 4 4 Recommendeddimensionsandmass 4.1 Thicknessandmass Seetable1. Table1 Nominal a mm Linearmass a kg/m 60 , 1 0 80 , 1 8 10 0,28 12 0,40 14 0,55 15 0,63 17 0,81 20 1,1 22 1,4 25 1,7 30 2,5 31,5 2,
20、8 32 2,9 40 4,5 50 7,0 a Forinformation,calculatedwithadensityof2,8kg/dm 3 4.2 Length Theordershallspecifyifbarsaretobesuppliedinfixedorinrandomlengths.Intheeventofasupplyof randomlengthstheminimumandmaximumvaluesforthelengthsshallbespecifiedontheorder. 5 Tolerances 5.1 Dimensionaltolerances 5.1.1 T
21、hickness Seetable2. Table2 Dimensionsinmillimetres Thickness Toleranceclass 6 a 50 h11EN2045:2001(E) 5 5.1.2 Length Seetable3,onlyapplicabletobarssuppliedinfixedlengths. Table3 Dimensionsinmillimetres Length Tolerances 6000 6 0 6000 10 0 5.1.3 Cornerradii Seetable4. Table4 Dimensionsinmillimetres Th
22、ickness Cornerradii r 6 a 10 0,5 10 a 30 0,8 30 a 50 1,0 5.2 Geometrictolerances 5.2.1 Straightness 5.2.1.1 Methodofmeasurementandsymbols SeeEN3848. 5.2.1.2 Tolerances Seetable5. Table5 Dimensionsinmillimetres Straightnessdeviation: Thickness Y 1 permetre Y 2 onanylength X 2 a 6 a 50 2 0,6 a X2 400
23、5.2.2 Squareness 5.2.2.1 Methodofmeasurementandsymbol SeeEN3848.EN2045:2001(E) 6 5.2.2.2 Tolerances Seetable6. Table6 Dimensionsinmillimetres Thickness Squarenessdeviation z 6 a 50 0,005 a 5.2.3 Twist 5.2.3.1 Methodofmeasurementandsymbol SeeEN3848. 5.2.3.2 Tolerances Seetable7. Table7 Dimensionsinmi
24、llimetres Twistv : Thickness permetre ontotallength 6 a 30 1,5 3 30 a 50 2 4 5.2.4 Surfaceflatness 5.2.4.1 Methodofmeasurement SeeEN3848. 5.2.4.2 Tolerances Thesurfaceflatnesstoleranceshallbeincludedinthethicknesstolerances.BS EN 2045:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standar
25、ds Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Stan
26、dards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technic
27、al committee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying stan
28、dards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are also available from the BSI website at http:/www.bsi-. In response to orders for international sta
29、ndards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help
30、 to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: infobsi-. Subscribing members of BSI are kept up to date with standard
31、s developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: membershipbsi-. Information regarding online access to British Standards via Brit
32、ish Standards Online can be found at http:/www.bsi- Further information about BSI is available on the BSI website at http:/www.bsi-. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except
33、as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the
34、 course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. Details and advice can be obtained from the Copyright & Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: copyrightbsi-.
