1、March 2014Translation by DIN-Sprachendienst.English price group 6No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 77
2、.040.10!%,c“2099064www.din.deDDIN EN ISO 8494Metallic materials Tube Flanging test (ISO 8494:2013);English version EN ISO 8494:2013,English translation of DIN EN ISO 8494:2014-03Metallische Werkstoffe Rohr Brdelversuch (ISO 8494:2013);Englische Fassung EN ISO 8494:2013,Englische bersetzung von DIN E
3、N ISO 8494:2014-03Matriaux mtalliques Tubes Essai de rabattement de collerette (ISO 8494:2013);Version anglaise EN ISO 8494:2013,Traduction anglaise de DIN EN ISO 8494:2014-03SupersedesDIN EN ISO 8494:2004-10www.beuth.deIn case of doubt, the German-language original shall be considered authoritative
4、.Document comprises 8 pages02.14 DIN EN ISO 8494:2014-03 2 A comma is used as the decimal marker. National foreword This document (EN ISO 8494:2013) has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals”, Subcommittee SC 2 “Ductility testing” (Secretariat: JISC, Japan) in
5、 collaboration with Technical Committee ECISS/TC 110 “Steel tubes, and iron and steel fittings” (Secretariat: UNI, Italy) in accordance with the agreement on technical cooperation between ISO and CEN (Vienna Agreement). The responsible German body involved in its preparation was the Normenausschuss
6、Materialprfung (Materials Testing Standards Committee), Working Committee NA 062-01-53 AA Rohrprfung fr Metalle. Amendments This standard differs from DIN EN ISO 8494:2004-10 as follows: a) the standard has been editorially revised. Previous editions DIN 50139: 1965-11 DIN EN 10235: 1994-01 DIN EN I
7、SO 8494: 2004-10 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM 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 rabattement de collerette (ISO 8494:2013) Metallische Werkstoffe
8、- 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 status of a national standard without any alteration. Up-
9、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, French, German). A version in any other language made by transl
10、ation 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland
11、, 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 and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION
12、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. No. EN ISO 8494:2013 EEN ISO 8494 Contents PageForeword .
13、31 Scope . 42 Symbols, designations and units 43 Principle 54 Testing equipment 55 Test piece 56 Procedure. 57 Test report . 62DIN EN ISO 8494:2014-03EN ISO 8494:2013 (E) Foreword This document (EN ISO 8494:2013) has been prepared by Technical Committee ISO/TC 164 Mechanical testing of metals in col
14、laboration with Technical Committee ECISS/TC 110 “Steel tubes, and iron and steel fittings” the secretariat 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 c
15、onflicting national standards shall be withdrawn at the latest by May 2014. Attention is drawn to the possibility 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 docum
16、ent supersedes EN ISO 8494:2004. 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav R
17、epublic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, 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
18、approved by CEN as EN ISO 8494:2013 without any modification. “”3DIN EN ISO 8494:2014-03EN ISO 8494:2013 (E)1 ScopeThis International Standard specifies a method for determining the ability of metallic tubes of circular cross-section to undergo plastic deformation during flange formation.This Intern
19、ational Standard is intended for tubes having an outside diameter no greater than 150 mm and a wall thickness no 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
20、Symbols, designations and unitsSymbols, designations and units for the flanging test of tubes are given in Table 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
21、piece before the testCorner radius of the flanging toolAngle of the conical mandrelmmmmmmmmmmdegreeaThe symbol T is also used in steel tube standardsa) b)Figure 14DIN EN ISO 8494:2014-03EN ISO 8494:2013 (E) 3 PrincipleForming of a flange on the end of a test piece cut from the tube, in a plane perpe
22、ndicular to the axis of the tube, until the external diameter of the flange reaches the value 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
23、 conical mandrel having a suitable angle (generally 90);b) a flanging tool having a cylindrical 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
24、 flange;c) a supporting die, which may be used to support the tube during the formation of 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
25、.5.2 Both ends of the test piece shall be in the plane perpendicular to the axis of the tube. 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 welde
26、d tubes are subjected to the test, the internal welded flash may be removed.6 Procedure6.1 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 t
27、est piece by forcing the conical mandrel into one end of the test piece until the diameter 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 fla
28、nging tool see Figure 1 b).6.4 Form the flange by applying axial force to the test piece until 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
29、test piece during the test.6.6 In case of dispute, the rate of movement of the forming tools shall not exceed 50 mm/min.5DIN EN ISO 8494:2014-03EN ISO 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 fl
30、anging test shall be carried out in accordance with the requirements of 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
31、 not be considered a cause for rejection.7 Test reportA test report shall 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 t
32、he test piece;c) dimensions of the test piece;d) maximum outside diameter 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.6DIN EN ISO 8494:2014-03EN ISO 8494:2013 (E)
