ISO INTERNATIONAL STANDARD 16432 First edition 2006-02-01 Resistance welding Procedure for projection welding of uncoated and coated low carbon steels using embossed projection(s) embouti(s)desaciers abas carbonerevetus etnonrevetus Reference number iiw ISO16432:2006(E) is @ISO 2006 Copyright Intemational Organization for Standardization ISO 16432:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO2006 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, ISO's member body in the country of the requester. ISO copyright office Case postale 56·CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2006 - All rights reserved ses=NASA Techr ds 1/9972545001 without ficense from IHS Not for Resale, 04/19/2007 02:01:35 MDT ISO 16432:2006(E) Contents Page Foreword. V Introduction.. 1 Scope.. 2 Normative references 3 Terms and definitions.... 4 Symbols. :5 Materials 5.1 Form... 5.2 Steel grades.. 5.3 Surface conditions. 6 6.1 Component design .... 6.1.1 General.. 6.1.2 Placement of projections .... 6.2 Projectiondimensions 6.2.1 General.... 6.2.2 Dissimilar sheet thickness.... 6.2.3 6.3 Ancillarymanufacturingconsiderations, 7 Welding equipment... 7.1 Welding machine .. 7.2 Electrode assembly (tooling)... 7.3 Design ofelectrodeassembly 7.3.1 Contact face.. 7.3.2 Electrode inserts... 7.3.3 Electrode cooling... 7.3.4 Location of components (tooling)..... 7.3.5 Tooling design considerations..... 8 Weld assessment-Type tests. 8.1 General.. 8.2 Test requirements. 8.2.1 Weld diameter ... 8.2.2 Weld fracture mode 8.2.3 Weld strength.. 8.2.4 Visual and metallographic examination. 8 8.3 Weldappearance- Surfacecondition 8.4 Distortion.... 9 WeldassessmentRoutinetests.. 9.1 8 9.2 Frequency of testing.... 9 10 Repair of non-conforming assemblies... AnnexA (informative)Recommendations forprojectionwelding equipment... .10 AnnexB (informative)Relationshipbetween sheet thicknessandprojection diameter(derived from ISO 8167. ....... 11 Annex C (informative)Typical projection welding conditions........ Annex D (informative) Partial list of steel types applicable to the standard..... Bibliography. ili ithout ficense from IHS ISO16432:2006(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least75%ofthe memberbodies castinga vote Attention is drawn to the possibility that some of the elements of this document may be the subject of patent ISO16432 was prepared by the International Institute of Welding, recognized as an international standardizing body in the field of welding in accordance with Council Resolution 42/1999 @ ISO 2006 - All rights reserved onal Organization for Standardizatior ISO 16432:2006(E) Introduction Requests for official interpretations of provisions in this standard should be made in writing and sent to the IsO Central Secretariat who will forward them to the IlW Secretariat for an official response. V winnIs 1/997254