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1、BRITISH STANDARD BS EN 10235:1994 Metallic materials Tube Flanging test The European Standard EN 10235:1993 has the status of a British Standard UDC 669-462:620.163.24 Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:25:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 10235:1994 This Bri
2、tish Standard, having been prepared under the direction of the Iron and Steel and the Non-ferrous Metals Standards Policy Committees, was published under the authority of the Standards Board and comes into effect on 15 May 1994 BSI 08-1999 The following BSI references relate to the work on this stan
3、dard: Committee reference ISM/NFM/4 Draft announced in BSI News April 1991 ISBN 0 580 22891 6 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following count
4、ries: AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standardiseringsraad FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organization for Standardization Icel
5、andTechnological Institute of Iceland IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalInstituto Portugus da Qualidade Spa
6、inAsociacin Espaola de Normalizacin y Certificacin SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 0
7、4:25:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 10235:1994 BSI 08-1999i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN 10235 3 National annex NA (informative) Committees responsible Inside back cover Licensed Copy: sheffieldun sheffield
8、un, na, Thu Oct 26 04:25:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 10235:1994 ii BSI 08-1999 National foreword This British Standard has been prepared under the direction of the Iron and Steel and the Non-ferrous Metals Standards Policy Committees and is the English language version of EN
9、10235:1993 Metallic materials Tube Flanging test, published by the European Committee for Standardization (CEN). No British Standard is superseded. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct
10、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, the EN title page, pages 2 to 4, an inside back cover and a back cover. This standard has been upd
11、ated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:25:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN
12、 10235 October 1993 UDC 669-462:620.163.24 Descriptors: Metal tubes, mechanical tests, flanging tests English version Metallic materials Tube Flanging test Matriaux mtalliques Tubes Essai de rabattement de collerette Metallische Werkstoffe Rohr Brdelversuch This European Standard was approved by CEN
13、 on 1993-10-25. 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-to-date lists and bibliographical references concerning such national standards may
14、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 under the responsibility of a CEN member into its own language and notified to the Centr
15、al 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, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European C
16、ommittee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1993 Copyright reserved to CEN members Ref. No. EN 10235:1993 E Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:25:49 GMT+00:00 2006, Uncontro
17、lled Copy, (c) BSI EN 10235:1993 BSI 08-1999 2 Foreword This European Standard has been prepared by sub-committee ECISS/TC 29, the Secretariat of which has been allocated to the United Kingdom (BSI). No meeting of the sub-committee has been held but the following countries voted positively by the PQ
18、 procedure on the acceptability of the reference document as a European Standard: Belgium, Denmark, Finland, France, Germany, Greece, Italy, Netherlands, Norway, Spain, Sweden, Switzerland and the United Kingdom. No country voted negatively. This European Standard shall be given the status of a nati
19、onal standard, either by publication of an identical text or by endorsement, at the latest by April 1994, and conflicting national standards shall be withdrawn at the latest by April 1994. In accordance with CEN/CENELEC Internal Regulations, the following countries are bound to implement this Europe
20、an Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword 2 Introduction3 1Scope3 2Normative reference3 3Principle3 4Symbols, descriptions and uni
21、ts3 5Testing equipment4 6Test piece4 7Procedure4 8Test report4 Figure 1 Symbols for flanging test3 Table 1 Symbols, descriptions and units3 Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:25:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 10235:1993 BSI 08-19993 Introduction This standard
22、 is based on ISO 8494:1986 Metallic materials Tube Flanging test which has been editorially changed in the light of the comments received. Several minor changes have been made in clauses 5 to 8. The usage of symbols has been aligned with the requirements of ISO 3545-1:1989. 1 Scope This European Sta
23、ndard specifies a method for determining the ability of metallic tubes of circular cross section to undergo plastic deformation during flange formation. It is intended that the standard should be applicable to tubes having an outside diameter not greater than 150 mm and a wall thickness not greater
24、than 10 mm. The range of diameters or wall thicknesses for which this European Standard is applicable could be more exactly specified in the relevant product standard. 2 Normative reference This European Standard incorporates by dated or undated reference, provisions from other publications. These n
25、ormative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revision of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated re
26、ferences the latest edition of the publication referred to applies. ISO 3545-1:1989, Steel tubes and fittings Symbols for use in specifications Part 1: Tubes and tubular accessories with circular cross-section. 3 Principle Forming on the end of a test piece cut from a tube, a flange in a plane perpe
27、ndicular to the axis of the tube, until the external diameter of the flange reaches the value specified in the relevant product standard. 4 Symbols, descriptions and units Symbols, descriptions and units for the flanging test of tubes are in accordance with ISO 3545-1:1989 and are given in Figure 1
28、and Table 1. Table 1 Symbols, descriptions and units SymbolDescriptionUnit DOriginal outside diameter of the tube mm TWall thickness of the tubemm LLength of the test piece before the test mm rCorner radius of the flanging toolmm CMaximum outside diameter of the flange mm Angle of the conical mandre
29、ldegree Figure 1 Symbols for flanging test Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:25:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 10235:1993 4 BSI 08-1999 5 Testing equipment 5.1 The test shall be carried out in a variable-speed press or a universal testing machine. 5.2 The fo
30、rming equipment shall consist of a) a conical mandrel having a suitable angle (generally 90); b) where r is specified in the relevant product standard a flanging tool having a cylindrical end of a diameter about 1 mm less than the inside diameter of the tube, a flat concentric portion, perpendicular
31、 to the axis of the forming tool, and having a diameter not less than the required diameter of the flange. NOTEWhen necessary a supporting die may be used to support the tube during the formation of the flange. 5.3 The forming tools shall be made of polished material of sufficient hardness. 6 Test p
32、iece 6.1 The length L of the test piece shall be approximately 1,5D. The test piece may be shorter provided that the cylindrical part remaining after flanging is at least 0,5D. 6.2 Both ends of the test piece shall be in a plane perpendicular to the axis of the tube. The edges of the end to be teste
33、d may be rounded by filing or chamfered by other methods. NOTENon-rounded or non-chamfered edges are permissible, if the test result meets the test requirements. 6.3 When welded tubes are subjected to the test, the internal welded flash may be removed. 7 Procedure 7.1 In general, the test shall be c
34、arried out at ambient temperature within the limits of 10 C to 35 C. The test carried out under controlled conditions shall be made at a temperature of (23 5) C. 7.2 Preform the test piece by forcing the conical mandrel into one end of the test piece until the diameter of the drifted test pieces is
35、such that a flange having the specified diameter can be formed see Figure 1 a). The axis of the mandrel shall be aligned with the axis of the tube. 7.3 Remove the conical mandrel and, if necessary, replace with the flanging tool see Figure 1 b). 7.4 Form the flange by applying axial force to the tes
36、t piece until the drifted portion has formed a flange of the required diameter perpendicular to the axis of the test piece. 7.5 The forming tools may be lubricated. The tools shall not rotate relative to the test piece during the test. 7.6 In case of dispute, the rate of movement of the forming tool
37、s shall not exceed 50 mm/min. 7.7 The diameter of the flange and the radius r shall be as specified in the relevant product standard. 7.8 Interpretation of the flanging test shall be carried out according to the requirements of the relevant product standard. When these requirements are not specified
38、, absence of cracks visible without the use of magnifying aids shall be considered as evidence that the test piece passed the test. Slight premature failure at the edges shall not be considered cause for rejection. 8 Test report 8.1 A test report shall be provided when so specified in the relevant p
39、roduct standard. 8.2 The test report shall include at least the following information: a) reference to this European Standard; b) identification of the test piece; c) dimensions of the test piece; d) maximum outside diameter of the expanded part of the test piece C or relative expansion as a percent
40、age of the original diameter D; e) corner radius r of the flanging tool, when relevant; f) result of the test. Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:25:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 10235:1994 BSI 08-1999 National annex NA (informative) Committees responsibl
41、e The United Kingdom participation in the preparation of this European Standard was entrusted by the Iron and Steel Standards Policy Committee (ISM/-) and the Non-ferrous Metals Standards Policy Committee (NFM/-) to Technical Committee ISM/NFM/4, upon which the following bodies were represented: AEA
42、 Technology Aluminium Federation British Non-ferrous Metals Federation British Railways Board British Steel Industry Copper Development Association Department of Trade and Industry (National Measurement Accreditation Service) Department of Trade and Industry (National Physical Laboratory) ERA Techno
43、logy Ltd. GAMBICA (BEAMA Ltd.) Institute of Materials Light Metal Founders Association Ministry of Defence Society of British Aerospace Companies Limited University College London Welding Institute The following body was also represented in the drafting of the standard, through subcommittees and pan
44、els: British Welded Steel Tube Association Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:25:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 10235:1994 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for prepa
45、ring 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 Standards should make sure that they possess the latest amendments or edition
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