1、BSI Standards PublicationBS EN ISO 14273:2016Resistance welding Destructive testing of welds Specimen dimensions andprocedure for tensile sheartesting resistance spot andembossed projection welds(ISO 14273:2016)BS EN ISO 14273:2016 BRITISH STANDARDNational forewordThis British Standard is the UK imp
2、lementation of EN ISO14273:2016. It supersedes BS EN ISO 14273:2001 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee WEE/-/1, Briefing committee for welding.A list of organizations represented on this committee can beobtained on request to its secretary.
3、This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 79580 0ICS 25.160.40Compliance with a British Standard cannot confer
4、immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 March 2016.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 14273 March 2016 ICS 25.160.40 Supersede
5、s EN ISO 14273:2001English Version Resistance welding - Destructive testing of welds - Specimen dimensions and procedure for tensile shear testing resistance spot and embossed projection welds (ISO 14273:2016) Soudage par rsistance - Essais destructifs des soudures - Dimensions des prouvettes et mod
6、e opratoire pour lessai de traction-cisaillement des soudures par rsistance par points et par bossages (ISO 14273:2016) Widerstandsschweien - Zerstrende Prfung von Schweiverbindungen - Probenmae und Verfahren fr die Scherzugprfung an Widerstandspunkt-, Rollennaht- und Buckelschweiungen mit geprgten
7、Buckeln (ISO 14273:2016) This European Standard was approved by CEN on 13 December 2015. 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 lis
8、ts 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 translation under
9、 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, Former Yu
10、goslav 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 COMIT EUROP
11、EN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14273:2016 EBS EN ISO 14273:2016EN ISO 14273:2016 (E) 3 Eu
12、ropean foreword This document (EN ISO 14273:2016) has been prepared by IIW International Institute of Welding in collaboration with Technical Committee CEN/TC 121 “Welding and allied processes” the secretariat of which is held by DIN. This European Standard shall be given the status of a national st
13、andard, either by publication of an identical text or by endorsement, at the latest by September 2016, and conflicting national standards shall be withdrawn at the latest by September 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
14、rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 14273:2001. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European
15、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, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia
16、, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 14273:2016 has been approved by CEN as EN ISO 14273:2016 without any modification. BS EN ISO 14273:2016ISO 14273:2016(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions
17、. 14 Test pieces and specimens . 15 Test equipment and testing procedure . 36 Test report . 5Annex A (informative) Specimen size Saturated strength condition . 6Bibliography 8 ISO 2016 All rights reserved iiiContents PageBS EN ISO 14273:2016ISO 14273:2016(E)ForewordISO (the International Organizatio
18、n for Standardization) is a worldwide federation 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
19、 the right to be represented on that committee. 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 pr
20、ocedures used to develop this document and those 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 edito
21、rial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention 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 righ
22、ts identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an expl
23、anation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this docu
24、ment is ISO/IIW, International Institute of Welding, Commission III.This second edition cancels and replaces the first edition (ISO 14273:2000), which has been technically revised.Requests for official interpretations of any aspect of this International Standard should be directed to the ISO Central
25、 Secretariat, who will forward them to the IIW Secretariat for an official response.iv ISO 2016 All rights reservedBS EN ISO 14273:2016ISO 14273:2016(E)IntroductionThis edition of ISO 14273 no longer includes figures showing failure types and modes for tensile shear and cross tension testing in acco
26、rdance with ISO 14329.ISO 14273 has been revised to align it with ISO 17677-1. ISO 2016 All rights reserved vBS EN ISO 14273:2016BS EN ISO 14273:2016Resistance welding Destructive testing of welds Specimen dimensions and procedure for tensile shear testing resistance spot and embossed projection wel
27、ds1 ScopeThis International Standard specifies specimen dimensions and a testing procedure for tensile shear testing of spot and embossed projection welds, in overlapping sheets, in any metallic material of thickness 0,5 mm to 10 mm, where the welds have a maximum diameter of 7t (where t is the shee
28、t thickness in mm).The object of tensile shear testing is to determine the tensile shear force that the test specimen can sustain.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated refer
29、ences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and calibration of
30、 the force-measuring systemISO 17677-1, Resistance welding Vocabulary Part 1: Spot, projection and seam welding3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 17677-1 and the following apply.3.1tensile shear strengthTSSmaximum (tensile shear) force ob
31、tained from this test3.2tensile shear forceforce applied on test specimen during tensile shear testing3.3saturated strength conditioncondition where beyond a certain specimen width and overlap length, the weld strength does not increase4 Test pieces and specimensThe configuration of the test specime
32、n is shown in Figure 1 and Table 1.The test specimen dimensions given in Table 1 are for testing in the saturated strength condition for weld diameters up to 5t.For weld diameters between 5t and 7t, tensile shear strength values can be underestimated when using the values given in Table 1 (see Annex
33、 A). When testing weld diameters over 5t in the saturated INTERNATIONAL STANDARD ISO 14273:2016(E) ISO 2016 All rights reserved 1BS EN ISO 14273:2016ISO 14273:2016(E)strength condition, the minimum coupon width shall be 7 to 10 times of the weld diameter (see Figure A.1).Table 1 Tensile shear test s
34、pecimen dimensions for weld diameter 5tThickness Overlap Specimen width aSpecimen lengthFree length be-tween clampsLength of individual test piecest a b lslfltmm mm mm mm mm mm0,5 t 1,5 35 45 (30) 175 95 1051,5 3 mm or where the ratio of the thicknesses of the two sheets is 1,4, shim plates shall be
35、 used for clamping the test specimen in the grips of the tensile testing machine. The shim plate shall be as thick as the sheet of the test specimen as shown in Figure 3.Testing shall be carried out at room temperature. ISO 2016 All rights reserved 3BS EN ISO 14273:2016ISO 14273:2016(E)11a) Profile
36、without shim plates b) Profile with shim plates c) Front viewKey1 shim plateFigure 3 Tensile shear test configurationA load-displacement curve shall be plotted in order to give information on the deformation of the test specimen. Examples are shown in Figure 4.The test results shall be recorded with
37、 values of the tensile shear strength in accordance with this test and type of failure mode and weld diameter of each weld in accordance with ISO 17677-1. Force measurement accuracy shall be equal or less than 1 %.4 ISO 2016 All rights reservedBS EN ISO 14273:2016ISO 14273:2016(E)F0TSSTSSlKeyTSS ten
38、sile shear strengthF force (load)l crosshead displacementFigure 4 Examples of load-displacement curves for the tensile shear test (Not to scale)6 Test reportThe test report shall contain at least the following information:a) a reference to this International Standard, i.e. ISO 14273:2016;b) the weld
39、ing process used;c) the welding conditions and equipment;d) the material and its condition;e) the dimensions of the test piece and of the test specimen;f) individual values, mean value and standard deviation of the tensile shear strength in kN;g) failure description (symmetrical plug failure, asymme
40、trical plug failure, partial failure, plug failure, interfacial failure, etc.);h) individual values, mean value and standard deviation of the weld diameter;i) special remarks if any. ISO 2016 All rights reserved 5BS EN ISO 14273:2016ISO 14273:2016(E)Annex A (informative) Specimen size Saturated stre
41、ngth conditionThe test specimen dimensions specified in this standard are larger than normal test specimen sizes. This is in order to obtain the maximum measured strength of the welds in the saturated strength condition. Specimen width values, b, in parentheses given in Table 1 indicate around a 10
42、% reduction in test piece size.The relationship between the test piece size and measured weld strength (tensile shear strength) is shown in Figure A.1.a) TSS vs. test specimen width (Mild steel sheets, t = 0,8 3,2 mm, a = 100 mma)b) TSS vs. overlap length of test specimen (Mild steel sheets, t = 0,8
43、 2,3 mm, b = 80 100 mmb)Key1 welddnnugget diametera/dnnon-dimensional overlap lengthb/dnnon-dimensional widthTSS(x)/TSS() non-dimensional weld strengthx a or bNOTE Superscripts “a” and “b” indicating the overlap length and the width of the test specimens used for the tests are in their saturated str
44、ength conditions, respectively.Figure A.1 Relationship between weld strength and test specimen size6 ISO 2016 All rights reservedBS EN ISO 14273:2016ISO 14273:2016(E)According to a previous study, the tensile shear strength is in the saturated condition when the test specimen about 10 times wider th
45、an the nugget diameter, and about five times longer than the nugget diameter or weld diameter. ISO 2016 All rights reserved 7BS EN ISO 14273:2016ISO 14273:2016(E)Bibliography1 ISO 14329, Resistance welding Destructive tests of welds Failure types and geometric measurements for resistance spot, seam
46、and projection welds2 IIW Doc. III-1399-06, Influence of specimen width and lap length on the tensile shear strength3 IIW Doc. III-1404-06, A trial for prediction of tensile-sear strength of spot welds in different width specimens8 ISO 2016 All rights reservedBS EN ISO 14273:2016This page deliberate
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