ISO International Standard ISO14373 Resistancewelding-Procedure Thirdedition forspotweldingofuncoatedand 2024-01 coatedlow-carbonsteels Soudageparresistance-Modeoperatoirepourlesoudagepar points des aciersabascarbone revetus et nonrevetus Referencenumber ISO 14373:2024(en) ISO 2024
ISO14373:2024(en) COPYRIGHTPROTECTEDDOCUMENT ISO 2024 All rightsreserved.lesotherwise secifiedorrequired in the contextof itsmlementationnopartof thispulicationmay bereproducedrutilizedotherwisnanyformrbyanymeanlectronicrmechanicalnludingphtocopyingrostingn the internetoranintranet without prior written permissionPermission canberequestedfromeither ISOat the addressbelow or ISO's member body in the country of the requester. ISO copyright office CP401Ch.de Blandonnet 8 CH-1214 Vernier Geneva Phone: 41 22 749 01 11 Email:copyright@iso.org Website: .iso.org Published in Switzerland ISO 2024 All rights reserved ii
ISO 14373:2024(en) Contents Page Foreword. iv Introduction. V 1 Scope. 1 2 Normativereferences. 1 3 Termsand definitions. 1 4 Symbols. 2 5 Materials.. 2 5.1 Form. 2 5.2 Coatings. 2 6 Surface conditions. 2 7 Edge conditions form of ponent and weld pitch. 2 8 Electrodes. 3 8.1 Materials. .3 8.2 Dimensions 3 8.3 Cooling of electrodes.. 4 Weld assessment.. 4 9.1 General.. 4 9.2 Weldability testing 5 9.3 Production testing 5 9.4 Frequency of testing. 5 10 Weldqualityrequirements. 5 10.1 Welddiameter. 5 10.2 Failure description of welds. 6 10.3 Weld strength 6 10.4 Visual examination. 7 10.4.1 Surface condition. 7 10.4.2 Distortion. 7 11 Multi-weld arrays. 8 AnnexA(informative)Remendationsforspot-weldingequipment. 9 AnnexB(informative)Typical spot-weldingconditions. 10 Annex C(informative)Partial list of steel types applicable to this document. 12 Bibliography. 14 ISO 2024 All rights reserved ii
ISO 14373:2024(en) Foreword bodies(ISomemberbodies).The work of preparing International Standards is normally carried out through has been established has the right to be represented on that mittee.International organizations governmental andnon-governmental in liaisonwithIo also takepartinthework.So collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. in the ISO/IECDirectives Part 1.In particular the different approval criteria needed for the different types of ISo document should be noted.This document was drafted in accordance with the editorial rules of the ISO/IEC Directives Part 2 (see .iso.org/directives). ISO draws attention to the possibility that theimplementation of this document may involve the use of (a) patent(s).ISo takes no position concerning the evidence validity or applicability of any claimed patent rights in respect thereof.As of the date of publication of this document ISo had not received notice of (a) patent(s) which may be required to implement this document.However implementers are cautioned that thismaynotrepresentthelatest information which maybe obtained from the patent database availableat .iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights. Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. Foranexplanation of thevoluntarynature of standards themeaningof ISospecificterms andexpressions Organization (WTO) principles in theTechnical Barriers to Trade(TBT) see .iso.org/iso/foreword.html. This document wasprepared byTechnicalCommitteeISO/TC44 Welding and alliedprocesses Submittee SC6 Resistanceweldingandalliedmechanicaljoining incollaborationwiththeEuropean Committeefor Standardization (CEN)Technical Committee CEN/TC121 Welding and allied processes in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement). This third edition cancels and replaces the second edition (ISO 14373:2015) which has been technically revised. The main changes are as follows: -figures showing failure types and modes for tensile shear and cross tension testing removed; -new coating types added; -cross-tension strength (CTS) values added; -tensile shear strength (TSS) formula removed; -tolerance for distortions reduced. Anyfedbackorquestionsonthisdocumentshouldbedirectedtotheuser's nationalstandardsbody.Apletelistingofthesebodiescanbefoundat .iso.org/members.html. Official interpretations of ISo/TC44 documents where they exist are available from this page:mittee.iso.org/sites/tc44/home/interpretation.html. ISO 2024 All rights reserved iv
ISO14373:2024(en) Introduction Information on appropriate welding equipment is given in Annex A and information on spot-welding conditions is given in Annex B. This information is provided for guidance only. Depending on the service conditions of thefabrication the type of welding equipment the characteristics possible that certain modifications will be necessary. In such cases further information can be obtained from the relevant application standard where one exists. ISO 2024 All rights reserved