EN ISO 18278-1:2022

Resistance welding - Weldability - Part 1: General requirements for the evaluation of weldability for resistance spot, seam and projection welding of metallic materials (ISO 18278-1:2022)

EN ISO 18278-1:2022

Name:EN ISO 18278-1:2022   Standard name:Resistance welding - Weldability - Part 1: General requirements for the evaluation of weldability for resistance spot, seam and projection welding of metallic materials (ISO 18278-1:2022)
Standard number:EN ISO 18278-1:2022   language:English language
Release Date:07-Jun-2022   technical committee:CEN/TC 121 - Welding
Drafting committee:CEN/TC 121/SC 4 - Quality management in the field of welding   ICS number:25.160.01 - Welding, brazing and soldering in general

SLOVENSKI STANDARD
01-september-2022
Nadomešča:
SIST EN ISO 14327:2004
SIST EN ISO 18278-1:2015
Uporovno varjenje - Varivost - 1. del: Splošne zahteve za vrednotenje varivosti pri
uporovnem točkovnem, kolutnem in bradavičnem varjenju kovinskih materialov
(ISO 18278-1:2022)
Resistance welding - Weldability - Part 1: General requirements for the evaluation of
weldability for resistance spot, seam and projection welding of metallic materials (ISO
18278-1:2022)
Widerstandsschweißen - Schweißeignung - Teil 1: Allgemeine Anforderungen an die
Bewertung der Schweißeignung von Widerstandspunkt-, Rollennaht- und
Buckelschweißen von metallischen Werkstoffen (ISO 18278-1:2022)
Soudage par résistance - Soudabilité - Partie 1: Exigences générales pour l'évaluation
de la soudabilité pour le soudage par résistance par points, à la molette et par bossages
des matériaux métalliques (ISO 18278-1:2022)
Ta slovenski standard je istoveten z: EN ISO 18278-1:2022
ICS:
25.160.10 Varilni postopki in varjenje Welding processes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 18278-1
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2022
EUROPÄISCHE NORM
ICS 25.160.01 Supersedes EN ISO 18278-1:2015
English Version
Resistance welding - Weldability - Part 1: General
requirements for the evaluation of weldability for
resistance spot, seam and projection welding of metallic
materials (ISO 18278-1:2022)
Soudage par résistance - Soudabilité - Partie 1: Widerstandsschweißen - Schweißeignung - Teil 1:
Exigences générales pour l'évaluation de la soudabilité Allgemeine Anforderungen an die Bewertung der
pour le soudage par résistance par points, à la molette Schweißeignung von Widerstandspunkt-, Rollennaht-
et par bossages des matériaux métalliques (ISO 18278- und Buckelschweißen von metallischen Werkstoffen
1:2022) (ISO 18278-1:2022)
This European Standard was approved by CEN on 16 May 2022.

CEN members are bound to comply with the CEN/CENELEC Internal 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 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 versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18278-1:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 18278-1:2022) has been prepared by Technical Committee ISO/TC 44 "Welding
and allied processes" in collaboration with Technical Committee CEN/TC 121 “Welding and allied
processes” 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 December 2022, and conflicting national standards
shall be withdrawn at the latest by December 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 18278-1:2015.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 18278-1:2022 has been approved by CEN as EN ISO 18278-1:2022 without any
modification.
INTERNATIONAL ISO
STANDARD 18278-1
Third edition
2022-05
Resistance welding — Weldability —
Part 1:
General requirements for the
evaluation of weldability for
resistance spot, seam and projection
welding of metallic materials
Soudage par résistance — Soudabilité —
Partie 1: Exigences générales pour l'évaluation de la soudabilité pour
le soudage par résistance par points, à la molette et par bossages des
matériaux métalliques
Reference number
ISO 18278-1:2022(E)
ISO 18278-1:2022(E)
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: [email protected]
Website: www.iso.org
Published in Switzerland
ii
ISO 18278-1:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Weldability . 4
4.1 Weldability of a component . 4
4.1.1 General . 4
4.1.2 Metallurgical weldability . 5
4.1.3 Operative weldability . 5
4.1.4 Constructional weldability . 5
4.2 Criteria for the evaluation of weldability. 5
5 Preparation of welding equipment .6
5.1 Welding machine . 6
5.2 Welding electrodes . 6
5.2.1 General . 6
5.2.2 Spot welding . 6
5.2.3 Seam welding . . . 6
5.2.4 Projection welding . 6
5.3 Measurement of parameters . 7
5.3.1 Welding current . 7
5.3.2 Electrode force . 7
6 Test procedures . 7
6.1 General . 7
6.2 Basic test procedures . 7
6.2.1 Essential variables . 7
6.2.2 Welding current range test . 7
6.2.3 Electrode life test . 8
6.2.4 Weldability lobe test . 9
6.3 Evaluation of weld properties . 10
6.3.1 General . 10
6.3.2 Shop floor tests . 10
6.3.3 Tensile shear testing . 10
6.3.4 Mechanized peel testing . 11
6.3.5 Cross-tension testing . 11
6.3.6 Macro-sections and hardness test . 11
6.3.7 Further weld properties . 11
7 Test report .11
7.1 General . 11
7.2 Welding current range test . . 11
7.3 Electrode life test . 12
7.4 Weldability lobe test .
...

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