BS EN 3916-2008 Aerospace series - Insert thin wall - Salvage procedure for components《航空航天系列 薄壁插入件 部件用修复程序》.pdf
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1、BS EN 3916:2008ICS 49.030.99NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAerospace series Insert, thin wall Salvage procedure forcomponentsThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 30 BSI 2008ISBN 97
2、8 0 580 60983 1Amendments/corrigenda issued since publicationDate CommentsBS EN 3916:2008National forewordThis British Standard is the UK implementation of EN 3916:2008.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/12, Aerospace fasteners and fastening systems.A lis
3、t of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal ob
4、ligations.September2008BS EN 3916:2008EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 3916August 2008ICS 49.030.99English VersionAerospace series - Insert, thin wall - Salvage procedure forcomponentsSrie arospatiale - Douilles filetes, paroi mince -Procdure pour rcuprationLuft- und Raumfahrt - Gew
5、indeeinstze, dnnwandig -Verfahren fr Nacharbeit von BauteilenThis European Standard was approved by CEN on 3 April 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without
6、any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made
7、by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Ge
8、rmany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGMa
9、nagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 3916:2008: EBS EN 3916:2008EN 3916:2008 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Conditions of use.4
10、4 Re-machining of an existing insert hole .5 5 Insert and tapped hole particulars.6 6 Installation of oversize inserts .9 7 Minimum criteria for the installation and removal tools and their methods of application.9 8 Assembly drive tool and swage tool10 9 Assembly procedure .11 9.1 Insertion11 9.2 S
11、waging 12 9.3 Gauging and inspection13 10 Oversize insert removal, replacement and tools14 BS EN 3916:2008EN 3916:2008 (E) 3 Foreword This document (EN 3916:2008) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes c
12、arried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, eithe
13、r by publication of an identical text or by endorsement, at the latest by February 2009, and conflicting national standards shall be withdrawn at the latest by February 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and
14、/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republi
15、c, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 3916:2008EN 3916:2008 (E) 4 1 Scope 1.1 This spe
16、cification covers the accepted methods for the reclamation of installation holes for standard thin wall inserts, within assemblies. 1.2 To enable rectification when defects or damage occur to the standard insert tapped installation hole, or to rectify any out of position of the hole within the speci
17、fied parameters of use. 1.3 To control the machining of the existing insert hole and the installation requirements of the replacement oversize thin wall insert. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, onl
18、y the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 3676:1998, Aerospace series Inserts, thin wall, self-locking Design standard EN 3913, Aerospace series Insert, thin wall, self-locking, short, in heat resisting n
19、ickel base alloy NI-PH2601 (NI-P100HT, Inconel 718), silver plated on internal thread, for salvage of components EN 3914, Aerospace series Insert, thin wall, self-locking, long, in heat resisting nickel base alloy NI-PH2601 (NI-P100HT, Inconel 718), silver plated on internal thread, for salvage of c
20、omponents EN 3915, Aerospace series Insert, thin wall, self-locking, MJ threads, in heat resisting nickel base alloy NI-PH2601 (NI-P100HT, Inconel 718), for salvage of components Classification: 1 275 MPa (at ambient temperature) / 550 C Technical specification ISO 965-1, ISO general-purpose metric
21、screw threads Tolerances Part 1: Principles and basic data ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts 3 Conditions of use 3.1 After reclamation, assemblies shall conform to the dimensional requirements of their respective Engineering Drawings. 3.2 Table 1 shows the
22、values for the maximum out of position as applied to the theoretical centreline of the original hole. In practice this is a cylinder of diameter x,xx applied down the theoretical centreline of the original hole. If the actual position of the hole centreline falls outside the perimeter of this cylind
23、er, the hole cannot be reclaimed. 3.3 Salvage using oversize inserts is only possible if the Boss thickness for component salvage has been used in the original design (see EN 3676:1998, Table 6). 3.4 The reclamation facility shall at this stage investigate the component Engineering Drawings to check
24、 that the operations detailed and controlled by sections 4 and 5 will not cause a further non conformance of the component. Table 2 demonstrates that 2 types of oversize insert can be used i.e. long or short. Before commencing reclamation, the original Engineering Drawings shall be checked to establ
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