1、BSI Standards PublicationBS EN ISO 8494:2013Metallic materials Tube Flanging testBS EN ISO 8494:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 8494:2013.It supersedes BS EN ISO 8494:2004 which is withdrawn.The UK participation in its preparation was en
2、trusted to TechnicalCommittee ISE/101/2, Ductility testing.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The Br
3、itish Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 82939 0ICS 77.040.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 Novem
4、ber 2013.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8494 November 2013 ICS 77.040.10 Supersedes EN ISO 8494:2004English Version Metallic materials - Tube - Flanging test (ISO 8494:2013) Matriaux mtalliques - Tubes - Essai de rabattem
5、ent de collerette (ISO 8494:2013) Metallische Werkstoffe - Rohr - Brdelversuch (ISO 8494:2013) This European Standard was approved by CEN on 28 October 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the
6、 status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, Frenc
7、h, 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 CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria,
8、Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey a
9、nd United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref.
10、No. EN ISO 8494:2013 EBS EN ISO 8494:2013EN ISO 8494:2013 (E) 3 Foreword This document (EN ISO 8494:2013) has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals“ in collaboration with Technical Committee ECISS/TC 110 “Steel tubes, and iron and steel fittings” the secretari
11、at of which is held by UNI. 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 May 2014, and conflicting national standards shall be withdrawn at the latest by May 2014. Attention is drawn to the pos
12、sibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 8494:2004. According to the CEN-CENELEC Internal Regulations, the national standard
13、s organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem
14、bourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 8494:2013 has been approved by CEN as EN ISO 8494:2013 without any modification. BS EN ISO 8494:2013ISO 8494:2013(E) ISO 201
15、3 All rights reserved iiiContents PageForeword iv1 Scope . 12 Symbols, designations and units 13 Principle 24 Testing equipment 25 Test piece 26 Procedure. 27 Test report . 3BS EN ISO 8494:2013ISO 8494:2013(E)ForewordIISO (the International Organization for Standardization) is a worldwide federation
16、 of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee.
17、International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those
18、 intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2. ww
19、w.iso.org/directivesAttention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document wi
20、ll be in the Introduction and/or on the ISO list of patent declarations received. www.iso.org/patentsAny trade name used in this document is information given for the convenience of users and does not constitute an endorsement.The committee responsible for this document is ISO/TC 164, Mechanical tes
21、ting of metals, Subcommittee SC 2, Ductility testing.This third edition cancels and replaces the second edition (ISO 8494:1998), of which it constitutes a minor revision.iv ISO 2013 All rights reservedBS EN ISO 8494:2013INTERNATIONAL STANDARD ISO 8494:2013(E)Metallic materials Tube Flanging test1 Sc
22、opeThis International Standard specifies a method for determining the ability of metallic tubes of circular cross-section to undergo plastic deformation during flange formation.This International Standard is intended for tubes having an outside diameter no greater than 150 mm and a wall thickness no
23、 greater than 10 mm, although the range of diameters or wall thickness for which this International Standard is applicable may be more exactly specified in the relevant product standard.2 Symbols, designations and unitsSymbols, designations and units for the flanging test of tubes are given in Table
24、 1 and are shown in Figure 1.Table 1Symbol Designation Unita aDDuLRbWall thickness of the tubeOriginal outside diameter of the tubeMaximum outside diameter of the flangeLength of the test piece before the testCorner radius of the flanging toolAngle of the conical mandrelmmmmmmmmmmdegreeaThe symbol T
25、 is also used in steel tube standardsa) b)Figure 1 ISO 2013 All rights reserved 1BS EN ISO 8494:2013ISO 8494:2013(E)3 PrincipleForming of a flange on the end of a test piece cut from the tube, in a plane perpendicular to the axis of the tube, until the external diameter of the flange reaches the val
26、ue specified in the relevant product standard.4 Testing equipment4.1 Variable-speed press or universal testing machine.4.2 Forming equipment, made of polished material of sufficient hardness, consisting ofa) a conical mandrel having a suitable angle (generally 90);b) a flanging tool having a cylindr
27、ical end of a diameter 1 mm less than the inside diameter of the tube, a flat concentric portion, perpendicular to the axis of the flanging tool, and having a diameter no less than the required diameter of the flange;c) a supporting die, which may be used to support the tube during the formation of
28、the flange.5 Test piece5.1 The length of the test piece shall be approximately 1,5D. The test piece may be shorter provided that the remaining cylindrical part of the test piece after flanging is at least 0,5D.5.2 Both ends of the test piece shall be in the plane perpendicular to the axis of the tub
29、e. The edges of the end to be tested may be rounded by filing or chamfered by other methods.NOTE Non-rounded or non-chamfered edges are permissible if the test result meets the test requirements.5.3 When welded tubes are subjected to the test, the internal welded flash may be removed.6 Procedure6.1
30、In general, the test shall be carried 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 C 5 C.6.2 Preform the test piece by forcing the conical mandrel into one end of the test piece until the diameter
31、of the drifted test piece is such that a flange having the specified diameter (Du) can be formed see Figure 1 a).6.3 Remove the conical mandrel and, if the piece is not already cracked, replace it with the flanging tool see Figure 1 b).6.4 Form the flange by applying axial force to the test piece un
32、til the drifted portion has formed a flange of the required diameter perpendicular to the axis of the test piece.6.5 The conical mandrel may be lubricated. The conical mandrel shall not rotate relative to the test piece during the test.6.6 In case of dispute, the rate of movement of the forming tool
33、s shall not exceed 50 mm/min.2 ISO 2013 All rights reservedBS EN ISO 8494:2013ISO 8494:2013(E)6.7 The diameter of the flange (Du) and the radius R shall be as specified in the relevant product standard.6.8 Interpretation of the flanging test shall be carried out in accordance with the requirements o
34、f the relevant product standard. When these requirements are not specified, the test piece shall be considered to have passed the test if no cracks are visible without the use of magnifying aids. Slight cracking at the edges shall not be considered a cause for rejection.7 Test reportA test report sh
35、all be provided when so specified in the relevant product standard. In this case, the test report shall include at least the following information:a) a reference to this International Standard, i.e. ISO 8494;b) identification of the test piece;c) dimensions of the test piece;d) maximum outside diame
36、ter of the expanded part of the test piece, Du, or relative expansion as a percentage of the original diameter, D;e) corner radius R of the flanging tool, when relevant;f) result of the test. ISO 2013 All rights reserved 3This page deliberately left blankThis page deliberately left blankBSI is the n
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