1、November 2016 English price group 11No 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 25.160.40!%u“2588257www.din.deD
2、IN EN ISO 14272Resistance welding Destructive testing of welds Specimen dimensions and procedure for cross tension testing of resistance spot and embossed projection welds (ISO 14272:2016);English version EN ISO 14272:2016,English translation of DIN EN ISO 14272:2016-11Widerstandsschweien Zerstrende
3、 Prfung von Schweiverbindungen Probenmae und Verfahren fr die Kopfzugprfung an Widerstandspunkt und Buckelschweiungen mit geprgten Buckeln (ISO 14272:2016);Englische Fassung EN ISO 14272:2016,Englische bersetzung von DIN EN ISO 14272:2016-11Soudage par rsistance Essais destructifs des soudures Dimen
4、sions des prouvettes et mode opratoire pour lessai de traction en croix des soudurespar rsistance par points et par bossages (ISO 14272:2016);Version anglaise EN ISO 14272:2016,Traduction anglaise de DIN EN ISO 14272:2016-11SupersedesDIN EN ISO 14272:200204www.beuth.deDocument comprises 17 pagesDTra
5、nslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.11.16 DIN EN ISO 14272:2016-11 2 A comma is used as the decimal marker. National foreword This document (EN ISO 14272:2016) has been prepared by Technical Committee ISO/TC 44 “Welding and
6、allied processes” in collaboration with Technical Committee CEN/TC 121 “Welding and allied processes” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Schweien und verwandte Verfahren (DIN Standards Committee Welding and Allied Processes),
7、Working Committee NA 092-00-12 AA Widerstandsschweien (DVS AG V 3). The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 7500-1 DIN EN ISO 7500-1 ISO 14329 DIN EN ISO 14329 ISO 17677-1 DIN EN ISO 17677-1 Amendments This standard differs from
8、 DIN EN ISO 14272:2002-04 as follows: a) figures showing failure types, and procedures for tensile shear and cross tension testing in accordance with ISO 14329:2003 are no longer included; b) the standard has been adapted to DIN EN ISO 17667-1; c) the standard has been technically and editorially re
9、vised. Previous editions DIN 50164: 1982-07 DIN EN ISO 14272: 2002-04 National Annex NA (informative) Bibliography DIN EN ISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and calibration of the force-measuring s
10、ystem DIN EN ISO 14329, Resistance welding Destructive tests of welds Failure types and geometric measurements for resistance spot, seam and projection welds DIN EN ISO 17677-1, Resistance welding Vocabulary Part 1: Spot, projection and seam welding EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM
11、EN ISO 14272 March 2016 ICS 25.160.40 Supersedes EN ISO 14272:2001English Version Resistance welding - Destructive testing of welds - Specimen dimensions and procedure for cross tension testing of resistance spot and embossed projection welds(ISO 14272:2016, Corrected version 2016-09-01) Soudage par
12、 rsistance - Essais destructifs des soudures -Dimensions des prouvettes et mode opratoire pour lessai de traction en croix des soudurespar rsistance par points et par bossages(ISO 14272:2016, Version corrige 2016-09-01) Widerstandsschweien - Zerstrende Prfung von Schweiverbindungen - Probenmae und V
13、erfahren fr die Kopfzugprfung an Widerstandspunkt- und Buckelschweiungen mit geprgten Buckeln(ISO 14272:2016, korrigierte Fassung 2016-09-01) This European Standard was approved by CEN on 5 December 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the c
14、onditions 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 be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard ex
15、ists 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 CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national s
16、tandards bodies of 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,
17、 Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN 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 res
18、erved worldwide for CEN national Members. Ref. No. EN ISO 14272:2016 EEuropean foreword .3Introduction 51 Scope . 62 Normative references 63 Terms and definitions . 64 Test specimen 65 Test equipment and testing procedure . 86 Test report 11Annex A (informative) Exploded view of a hydraulic clamping
19、 device 13Bibliography .15Contents PageDIN EN ISO 14272:2016-11 EN ISO 14272:2016 (E) 2Foreword .4European foreword This document (EN ISO 14272:2016) has been prepared by IIW International Institute of Welding in collaboration with Technical Committee CEN/TC 121 “Welding and allied processes” the se
20、cretariat of which is held by DIN. 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 September 2016, and conflicting national standards shall be withdrawn at the latest by September 2016. Attention
21、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 document supersedes EN ISO 14272:2001. According to the CEN-CENELEC Internal Regulations, t
22、he 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 Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latv
23、ia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 14272:2016, Corrected version 2016-09-01 has been approved by CEN as EN ISO 14272:2016 without any modif
24、ication. DIN EN ISO 14272:2016-11 EN ISO 14272:2016 (E) 3 ForewordISO (the International Organization 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 committee
25、s. Each member body interested in a subject for which a technical committee has been established has 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 Inter
26、national Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures 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 diff
27、erent types of ISO documents should be noted. This document was drafted in accordance with the editorial 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 sha
28、ll not be held responsible for identifying any or all such patent rights. Details of any patent rights 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
29、is information given for the convenience of users and does not constitute an endorsement.For an explanation 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
30、) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/IIW, International Institute of Welding, Commission III.This second edition cancels and replaces the first edition (ISO 14272:2000), which has been technically revised.This corrected versi
31、on of ISO 14272:2016 incorporates the following corrections: Figure 4 a) has been corrected.Requests for official interpretations of any aspect of this International Standard should be directed to the ISO Central Secretariat, who will forward them to the IIW Secretariat for an official response.DIN
32、EN ISO 14272:2016-11 EN ISO 14272:2016 (E) 4 IntroductionThis edition of ISO 14272 no longer includes figures showing failure types and modes for tensile shear and cross tension testing in accordance with ISO 14329.ISO 14272 has been revised to align it with ISO 17677-1.DIN EN ISO 14272:2016-11 EN I
33、SO 14272:2016 (E) 5 1 ScopeThis International Standard specifies specimen dimensions and a testing procedure for the cross tension testing of spot and projection welds in overlapping sheets in any metallic material of thickness 0,5 mm to 3 mm, where the welds have a maximum diameter of 7t (where t i
34、s the sheet thickness in mm).The object of cross tension testing is to determine the tensile 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 r
35、eferences, 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 calibratio
36、n of 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.3.1cross tension strengthCTSmaximum cross tension force
37、obtained from this test3.2cross tension forceforce applied on test specimen during cross tension testing4 Test specimenThe test specimen is composed of two rectangular coupons as shown in Figure 1. If clamping bolts are used, two holes shall be drilled in each coupon. If a hydraulic clamping system
38、is used for clamping, no holes are required.The weld shall be centred in the test specimen with a tolerance of 1 mm to every direction.Figures 2 and 3 illustrate examples of a welding jig/template, which can be used for welding the two sheets together. Two punched strips are placed at right angles t
39、o each other, held in the jig, and welded together. To obtain a statistically significant average, several specimens shall be tested.DIN EN ISO 14272:2016-11 EN ISO 14272:2016 (E) 6 Dimensions in millimetres1Key1 weldFigure 1 Test specimen for cross tension testDimensions in millimetres1 234Key1 loc
40、ator pin2 test specimen3 welding electrode4 insulation materialFigure 2 Example of a welding jig for welding cross tension test specimens with holesDIN EN ISO 14272:2016-11 EN ISO 14272:2016 (E) 7 Dimensions in millimetresKeyD hole diametert sheet thicknessNOTE For specimens without holes (clamping
41、bolts), the hole diameter and thickness of the welding jig/template can be determined in accordance with the electrode configuration.Figure 3 Example of a welding jig for welding cross tension test specimens without holes5 Test equipment and testing procedureFor test specimens with holes and clampin
42、g bolts, the assembled specimen shall be held in clamps as shown in Figure 4. For test specimens without holes a hydraulic clamping system, as shown in Figure 5, can be used in place of the testing clamps illustrated in Figure 4.After clamping, the test specimen shall be pulled apart using a tensile
43、 testing machine, which satisfies the requirements of ISO 7500-1. The measurement accuracy of force shall be equal or less than 1 %.The cross tension force shall be measured during testing. The cross tension strength shall be determined from the maximum force value. All tests shall be carried out at
44、 room temperature.The cross tension strength values obtained in accordance with this test shall be recorded, including type of failure mode and weld diameter for each weld in accordance with ISO 17677-1. See also Clause 6.A load-displacement diagram shall be created to give information about the def
45、ormation of the test specimen. An example of such a diagram is shown in Figure 6.DIN EN ISO 14272:2016-11 EN ISO 14272:2016 (E) 8 Dimensions in millimetresa) Top view2160b) A-A cross sectionKey1 clamping bolt M18 43LG2 test specimenFigure 4 Example of testing clamps for test specimen with holesDIN E
46、N ISO 14272:2016-11 EN ISO 14272:2016 (E) 9 11223Key1 hydraulic cylinders2 dies to clamp test specimen3 test specimenNOTE Test specimens are inserted from the opposite side. An exploded view of a clamping device can be seen in Annex A.Figure 5 Example of a testing device with hydraulic clampsDIN EN
47、ISO 14272:2016-11 EN ISO 14272:2016 (E) 10 FCTSCTSCTS0lKeyCTS cross tension strengthF force/loadl crosshead displacementFigure 6 Examples of load Displacement curve of spot welded joints (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 14272:2016;b) the welding process used;c) the weldi
