ISO INTERNATIONAL STANDARD 16338 Second edition 2017-01 Welding for aerospace applications Resistance spot and seam welding Soudage pour applications aérospatiales - Soudage par résistance parpointsetalamolette Reference number ISO 16338:2017(E) ISO International Organization for Standardization @ IS0 2017 =ZHEJIANG INST OF STANDARDIZATION C1 5956617 vided by IHS under lic Not for Resale, 2017/3/28 02:56:37 itted without license from IHS IS0 16338:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Internatinair PrganizationforStandardization ensee-ZHEJIANG INSTOF STANDARDIzARoISQa7 - All rights reserved etworking permitted without license from IHS IS0 16338:2017(E) Contents Page Foreword ..V 1 Scope .1 2 Normative references ...1 3 Terms and definitions 4 Symbols and abbreviated terms. 5 Specific engineering requirements. 6 Classification of the joint ..4 7 Production requirements. ..4 8 Welding personnel requirements. ..5 9 Person responsible for welding procedure qualification and welding machine qualification tests .5 10 Material groups. 11 Preparation of parts to be welded. 11.1 General ..5 11.2 Cleaning requirements 11.3 Surface coatings .6 11.4 Assembly.... ..6 12 Equipment requirements .6 12.1 Welding machines.. ..6 12.2 Electrodes. ..6 12.3 Shear testing machines .6 12.3.1 General. .6 12.3.2 Stationary shear testing machines 12.3.3 Portable shear testing machines ..6 12.4 Jigs and fixtures. 13 Welding machines 13.1 Qualification requirements ..6 13.1.1 General 13.1.2 Method of welding machine qualification 1 13.2 Test piece configuration and examination requirements ..8 14 Welding procedure (WPS) 14.1 Qualification requirements .9 14.1.1 General Determination of weld settings. 14.1.2 14.1.3 Methods of welding procedure qualification .9 14.1.4 Thickness combination limits. .10 14.1.5 Welding procedure specification (WPS) .10 14.1.6 Welding procedure requalification ..11 14.2 Test piece configuration and examination requirements ..11 15 Quality requirements for production .13 15.1 General. .13 15.2 Production witness testing ..13 15.2.1 General. ..13 15.2.2 Witness test specimens .13 15.2.3 Surface resistance. ..13 15.2.4 Parameter adjustments ..13 15.2.5 Production witness test specimen configuration and examination ..14 15.2.6 Alternate testing requirements in lieu of production witness testing ..16 ntemaionalganzation@7-All rights reserved iii Censee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 ted withoutlicensefrom IHS Not for Resale, 2017/3/28 02:56:37