1、September 2016 English price group 13No 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 25.160.10!%$j“2560171www.din.d
2、eDIN EN ISO 18278-2Resistance welding Weldability Part 2: Evaluation procedures for weldability in spot welding (ISO 182782:2016);English version EN ISO 182782:2016,English translation of DIN EN ISO 18278-2:2016-09Widerstandsschweien Schweieignung Teil 2: Verfahren zum Bewerten der Eignung fr das Wi
3、derstandspunktschweien (ISO 182782:2016);Englische Fassung EN ISO 182782:2016,Englische bersetzung von DIN EN ISO 18278-2:2016-09Soudage par rsistance Soudabilit Partie 2: Mthodes dvaluation de la soudabilit par points (ISO 182782:2016);Version anglaise EN ISO 182782:2016,Traduction anglaise de DIN
4、EN ISO 18278-2:2016-09SupersedesDIN EN ISO 182782:200502www.beuth.deDocument comprises 27 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.09.16 DIN EN ISO 18278-2:2016-09 2 A comma is used as the decimal marker. National forewo
5、rd This document (EN ISO 18278-2:2016) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes” (Secretariat: AFNOR, France) in collaboration with Technical Committee CEN/TC 121 “Welding and allied processes” (Secretariat: DIN, Germany). The responsible German body involved
6、in its preparation was DIN-Normenausschuss Schweien und verwandte Verfahren (DIN Standards Committee Welding and Allied Processes), Working Group NA 092-00-12-02 AK Punkt-, Buckel- und Rollennahtschweien (DVS AG V 3.2). The DIN Standards corresponding to the International Standards referred to in th
7、is document are as follows: ISO 669 DIN EN ISO 669 ISO 5182 DIN EN ISO 5182 ISO 5821 DIN EN ISO 5821 ISO 10447 DIN EN ISO 10447 ISO 14270 DIN EN ISO 14270 ISO 14271 DIN EN ISO 14271 ISO 14272 DIN EN ISO 14272 ISO 14273 DIN EN ISO 14273 ISO 14327 DIN EN ISO 14327 ISO 14373 DIN EN ISO 14373 ISO 15609-
8、5 DIN EN ISO 15609-5 ISO 17653 DIN EN ISO 17653 ISO 17657-1 DIN EN ISO 17657-1 ISO 17657-2 DIN EN ISO 17657-2 ISO 17657-5 DIN EN ISO 17657-5 ISO 17677-1 DIN EN ISO 17677-1 ISO 18278-1 DIN EN ISO 18278-1 Amendments This standard differs from DIN EN ISO 18278-2:2005-02 as follows: a) the standard has
9、been technically and editorially revised; b) the content of the former Clause 11 “Specific conditions for steel sheet customer qualification” has been moved to Annex B; c) Table B.2 giving optional maximum welding parameters for advanced high strength steel sheets (UTS 650 MPa) has been added. Previ
10、ous editions DIN EN ISO 18278-2: 2005-02 DIN EN ISO 18278-2:2016-09 3 National Annex NA (informative) Bibliography DIN EN ISO 669, Resistance welding Resistance welding equipment Mechanical and electrical requirements DIN EN ISO 5182, Resistance welding Materials for electrodes and ancillary equipme
11、nt DIN EN ISO 5821, Resistance welding Spot welding electrode caps DIN EN ISO 10447, Resistance welding Testing of welds Peel and chisel testing of resistance spot and projection welds DIN EN ISO 14270, Resistance welding Destructive testing of welds Specimen dimensions and procedure for cross tensi
12、on testing of resistance spot and embossed projection welds DIN EN ISO 14271, Resistance welding Vickers hardness testing (low-force and microhardness) of resistance spot, projection and seam welds DIN EN ISO 14272, Resistance welding Destructive testing of welds Specimen dimensions and procedure fo
13、r cross tension testing of resistance spot and embossed projection welds DIN EN ISO 14273, Resistance welding Destructive testing of welds Specimen dimensions and procedure for tensile shear testing resistance spot and embossed projection welds DIN EN ISO 14327, Resistance welding Procedures for det
14、ermining the weldability lobe for resistance spot, projection and seam welding DIN EN ISO 14373, Resistance welding Procedure for seam welding of uncoated and coated low carbon steels DIN EN ISO 15609-5, Specification and qualification of welding procedures for metallic materials Welding procedure s
15、pecification Part 5: Resistance welding DIN EN ISO 17653, Resistance welding Destructive tests on welds in metallic materials Torsion test of resistance spot welds DIN EN ISO 17657-1, Resistance welding Welding current measurement for resistance welding Part 1: Guidelines for measurement DIN EN ISO
16、17657-2, Resistance welding Welding current measurement for resistance welding Part 2: Welding current meter with current sensing coil DIN EN ISO 17657-5, Resistance welding Welding current measurement for resistance welding Part 5:- Verification of welding current measuring system DIN EN ISO 17677-
17、1, Resistance welding Vocabulary Part 1:- Spot, projection and seam welding DIN EN ISO 18278-1, Resistance welding Weldability Part 1: Assessment of weldability for resistance spot, seam and projection welding of metallic materials DIN EN ISO 18278-2:2016-09 4 This page is intentionally blank EUROPE
18、AN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 18278-2 February 2016 ICS 25.160.40 Supersedes EN ISO 18278-2:2004English Version Resistance welding Weldability Part 2: Evaluation procedures for weldability in spot welding (ISO 18278-2:2016) Soudage par rsistance Soudabilit Partie 2: Mthodes dval
19、uation de la soudabilit par points (ISO 18278-2:2016) Widerstandsschweien Schweieignung Teil 2: Verfahren zum Bewerten der Eignung fr das Widerstandspunktschweien (ISO 18278-2:2016) This European Standard was approved by CEN on 27 November 2015. CEN members are bound to comply with the CEN/CENELEC I
20、nternal 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 be obtained on application to the CEN-CENELEC Management Centre or to
21、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 CEN-CENELEC Management Centre has the same status as the official
22、 versions. CEN members are the national standards 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, Nor
23、way, Poland, Portugal, Romania, Slovakia, 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 expl
24、oitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 18278-2:2016 EEN ISO 18278-2:2016 (E) 2 Contents Page European foreword . 4 Foreword 5 Introduction 6 1 Scope 7 2 Normative references 7 3 Terms and definitions . 7 4 Welding equipment 8 4.1 General 8
25、4.2 Electrodes 8 4.3 Welding current . 8 4.4 Mechanical settings 8 4.5 Measurement of parameters . 8 4.5.1 Welding current and electrode force . 8 4.5.2 Electrode cooling water flow rate . 8 4.6 Measurement of results 9 4.6.1 Weld diameter 9 4.6.2 Detection of expulsion . 9 5 Preliminary adjustments
26、 . 9 5.1 Electrode alignment . 9 5.2 Electrode conditioning 9 6 Determination of the welding current range 9 6.1 Test specimens . 9 6.2 Welding parameters 9 6.3 Test procedure 10 6.4 Current range criteria 10 6.5 Three sheet and multiple stack-ups 10 7 Estimation of electrode life. 11 7.1 Test speci
27、mens 11 7.2 Welding parameters . 11 7.3 Procedure 11 7.4 Test criteria, interpretation of results . 12 8 Test report 12 8.1 General . 12 8.2 Welding current range . 12 8.3 Electrode life 13 (informative) Electrode alignment 14 Annex A(informative) Specific conditions for steel sheet customer qualifi
28、cation . 16 Annex BB.1 Purpose 16 B.2 Single-side coatings . 16 B.3 Welding parameters . 16 B.4 Minimum weld diameter . 16 DIN EN ISO 18278-2:2016-09 EN ISO 18278-2:2016 (E) 3 (informative) Test specimens for mechanical characterization . 19 Annex C(informative) Example of test report for welding cu
29、rrent range . 21 Annex D(informative) Example of test report for electrode life test 22 Annex EBibliography . 23 DIN EN ISO 18278-2:2016-09 EN ISO 18278-2:2016 (E) 4 European foreword This document (EN ISO 18278-2:2016) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes
30、” in collaboration with Technical Committee CEN/TC 121 “Welding” the secretariat 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 August 2016, and conflicting national stan
31、dards shall be withdrawn at the latest by August 2016. 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 document supersedes EN ISO
32、 18278-2:2004. 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 Republic of Macedon
33、ia, 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 18278-2:2016 has been approved by CEN
34、 as EN ISO 18278-2:2016 without any modification. DIN EN ISO 18278-2:2016-09 EN ISO 18278-2:2016 (E) 5 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normal
35、ly 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. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the
36、 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 intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the
37、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 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this docume
38、nt 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 will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/
39、patents). Any trade name used in this document 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 pr
40、inciples in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information The committee responsible for this document is ISO/TC 44, Welding and allied processes, Subcommittee SC 6, Resistance welding and allied mechanical joining. Requests for official interpretat
41、ions of any aspect of this document should be directed to the Secretariat of ISO/TC 44/SC 6 via your national standards body. A complete listing of these bodies can be found at www.iso.org. This second edition cancels and replaces the first edition (ISO 18278-2:2004), which has been technically revi
42、sed. ISO 18278 consists of the following parts, under the general title Resistance welding Weldability: Part 1: General requirements for the evaluation of weldability for resistance spot, seam and projection welding of metallic materials Part 2: Evaluation procedures for weldability in spot welding
43、DIN EN ISO 18278-2:2016-09 EN ISO 18278-2:2016 (E) 6 Introduction This document describes procedures for evaluating the resistance spot welding weldability by determining the welding current range and electrode life. These procedures can be used to evaluate the following: a) the effect of electrode
44、material, shape, dimensions and electrode cooling; b) the effect of material types and thicknesses and coatings being welded; c) the effect of welding conditions; d) the effect of welding equipment. DIN EN ISO 18278-2:2016-09 EN ISO 18278-2:2016 (E) 7 1 Scope This part of ISO 18278 provides specific
45、 test procedures for the determination of the acceptable welding current range and the electrode life. It is applicable for the evaluation of the weldability of assemblies of uncoated and coated sheets of individual thicknesses from 0,4 mm to 6,0 mm. 2 Normative references The following documents, i
46、n whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 669, Resistance welding Resis
47、tance welding equipment Mechanical and electrical requirements ISO 5182, Resistance welding Materials for resistance welding electrodes and ancillary equipment ISO 5821, Resistance welding Spot welding electrode caps ISO 10447, Resistance welding Testing of welds Peel and chisel testing of resistanc
48、e spot and projection welds ISO 14270, Resistance welding Destructive testing of welds Specimen dimensions and procedure for mechanized peel testing resistance spot, seam and embossed projection welds ISO 14272, Resistance welding Destructive testing of welds Specimen dimensions and procedure for cr
49、oss tension testing of resistance spot and embossed projection welds ISO 14273, Resistance welding Destructive testing of welds Specimen dimensions and procedure for tensile shear testing resistance spot, seam and embossed projection welds ISO 14373, Resistance welding Procedure for spot welding of uncoated and coated low carbon steels ISO 15609-5, Specificati
