1、BRITISH STANDARD AEROSPACE SERIES BS EN 3064:1996 Shank nuts, self-locking, serrated Installation procedure The European Standard EN 3064:1996 has the status of a British Standard ICS 49.040.207BSEN3064:1996 This British Standard, having been prepared under the direction of the Engineering Sector Bo
2、ard, was published under the authority of the Standards Board and comes into effect on 15 October 1996 BSI 11-1998 The following BSI references relate to the work on this standard: Committee reference ACE/12 Draft for comment 87/78124 DC ISBN 0 580 24095 9 Committees responsible for this British Sta
3、ndard The preparation of this British Standard was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems, upon which the following bodies were represented: Association of Electronics, Telecommunications and Business Equipment Industries British Industrial Fasteners Feder
4、ation Ministry of Defence Society of British Aerospace Companies Ltd. Amendments issued since publication Amd. No. Date CommentsBSEN3064:1996 BSI 11-1998 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 1 Scope 3 2 Tools 3 3 Swaging of the nuts 3 4 Control of
5、 the swaging 4 Figure 1 3 Figure 2 4 Table 1 3 List of references Inside back coverBSEN3064:1996 ii BSI 11-1998 National foreword This British Standard has been prepared by Technical Committee ACE/12 and is the English language version of EN3064:1996 Aerospace series Shank nuts, self-locking, serrat
6、ed Installation procedure, published by the European Committee for Standardization (CEN). EN3064:1996 was produced as a result of international discussions in which the United Kingdom took an active part. A British Standard does not purport to include all the necessary provisions of a contract. User
7、s of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 4, an inside
8、 back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on theinside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3064 July 1996 ICS 49.040.207 Descriptors: Aircraft
9、industry, fastener, nut: fastener, self-locking nut, crimping: mechanics, assembling, inspection English version Aerospace series Shank nuts, self-locking, serrated Installation procedure Srie arospatiale Ecrous sertir, dentels, freinage interne Procdure de montage Luft- und Raumfahrt Einnietmuttern
10、, selbstsichernd, verzahnt Einbauverfahren This European Standard was approved by CEN on 1994-12-28. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up
11、-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation und
12、er the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherl
13、ands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1996 Copyright reserved to CEN members Ref. No. EN 3064:1996 EEN306
14、4:1996 BSI 11-1998 2 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the
15、Official Services of the member countries of AECMA, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 1997, and conflicting national standards shall be with
16、drawn at the latest by January 1997. According to the CEN/CENELEC Internal Regulations the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Neth
17、erlands, Norway, Portugal, Spain, Sweden, Switzerland, UnitedKingdom.EN3064:1996 BSI 11-1998 3 1 Scope This standard specifies the conditions of installation (tools, swaging and control) of self-locking serrated shank nuts defined by EN standards. It shall be applicable whenever referenced. 2 Tools
18、Configuration seeFigure 1 and Table 1. Dimensions and tolerances are in millimetres. 3 Swaging of the nuts It shall be obtained by flaring the end of the serrated shank of the nut with tools (conical tapered punch and support). The load for the swaging operation is approx.15000N. The punch shall be
19、aligned with the axis of the nut in order to prevent creating overstresses or cracks on the flared shank. During this operation the punch shall not rotate. Table 1 Figure 1 Thread code of the nut E max. P 0,1 R 2 S min. U V 050 3,8 8 2 9,8 10,5 1,25 060 9 11,5 070 7,1 10 2,2 11,1 12,7 1,35 080 11,2
20、13,6 1,2EN3064:1996 4 BSI 11-1998 4 Control of the swaging The swaged area shall show no cracks or corrugations. The bearing surface of the nut shall bear completely on the base. The perpendicularity of the assembled nut shall be in accordance with Figure 2. In the case of silver plated nuts, the fl
21、aking of the coating in the swaging area is acceptable. Meanwhile any loose flakes are to be removed. Figure 2BSEN3064:1996 BSI 11-1998 List of references See national foreword.BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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