EN ISO 18278-2:2016

Resistance welding - Weldability - Part 2: Evaluation procedures for weldability in spot welding (ISO 18278-2:2016)

ISO 18278-2:2016 provides specific 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.

Widerstandsschweißen - Schweißeignung - Teil 2: Verfahren zum Bewerten der Eignung für das Widerstandspunktschweißen (ISO 18278-2:2016)

Dieses Dokument legt spezifische Prüfverfahren zur Bestimmung des zulässigen Schweißstrombereiches und der Elektrodenstandmenge fest.
Dieses Dokument ist zur Bewertung der Schweißeignung von Baugruppen anwendbar, die aus un¬be¬schich¬te¬ten und beschichteten Blechen mit individuellen Dicken von 0,4 mm bis 6,0 mm bestehen.

Soudage par résistance - Soudabilité - Partie 2: Méthodes d'évaluation de la soudabilité par points (ISO 18278-2:2016)

ISO 18278-2:2016 spécifie une méthode d'essai spécifique permettant la détermination du domaine de soudabilité acceptable et de la durée de vie des électrodes.
Le présent document est applicable à l'évaluation de la soudabilité d'assemblages de tôles revêtues et non, d'épaisseurs individuelles comprises entre 0,4 mm et 6,0 mm.

Uporovno varjenje - Varivost - 2. del: Postopki vrednotenja za varivost pri točkovnem varjenju (ISO 18278-2:2016)

Ta del standarda ISO 18278 določa posebne preskusne postopke za ugotavljanje sprejemljivega razpona tokovnih vrednosti pri varjenju in življenjske dobe elektrod.
Uporablja se za oceno varivosti sestavov neprevlečenih in prevlečenih plošč s posameznimi debelinami od 0,4 do 6 mm.

General Information

• Status: Published
• Publication Date: 23-Feb-2016
• Withdrawal Date: 23-Aug-2016
• ICS: 25.160.10 - Welding processes
• ICS: 25.160.40 - Welded joints and welds
• Technical Committee: CEN/TC 121 - Welding
• Drafting Committee: CEN/TC 121/SC 4 - Quality management in the field of welding
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 24-Feb-2016
• Completion Date: 24-Feb-2016
• Ref Project: SIST EN ISO 18278-2:2016 - Resistance welding - Weldability - Part 2: Evaluation procedures for weldability in spot welding (ISO 18278-2:2016)

Relations

• Replaces: EN ISO 18278-2:2004 - Resistance welding - Weldability - Part 2: Alternative procedures for the assessment of sheet steels for spot welding (ISO 18278-2:2004)
• Effective Date: 02-Mar-2016

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2016
1DGRPHãþD
SIST EN ISO 18278-2:2005
8SRURYQRYDUMHQMH9DULYRVWGHO3RVWRSNLYUHGQRWHQMD]DYDULYRVWSUL
WRþNRYQHPYDUMHQMX,62
Resistance welding - Weldability - Part 2: Evaluation procedures for weldability in spot
welding (ISO 18278-2:2016)
Widerstandsschweißen - Schweißeignung - Teil 2: Verfahren zum Bewerten der Eignung
für das Widerstandspunktschweißen (ISO 18278-2:2016)
Soudage par résistance - Soudabilité - Partie 2: Méthodes d'évaluation de la soudabilité
par points (ISO 18278-2:2016)
Ta slovenski standard je istoveten z: EN ISO 18278-2:2016
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 18278-2
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2016
EUROPÄISCHE NORM
ICS 25.160.40 Supersedes EN ISO 18278-2:2004
English Version
Resistance welding - Weldability - Part 2: Evaluation
procedures for weldability in spot welding (ISO 18278-
2:2016)
Soudage par résistance - Soudabilité - Partie 2: Widerstandsschweißen - Schweißeignung - Teil 2:
Méthodes d'évaluation de la soudabilité par points (ISO Verfahren zum Bewerten der Eignung für das
18278-2:2016) Widerstandspunktschweißen (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 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18278-2:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
European foreword
This document (EN ISO 18278-2:2016) has been prepared by Technical Committee ISO/TC 44 "Welding
and allied processes" 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 standards 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 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 Macedonia, 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 as EN ISO 18278-2:2016 without any
modification.
INTERNATIONAL ISO
STANDARD 18278-2
Second edition
2016-01-15
Resistance welding — Weldability —
Part 2:
Evaluation procedures for weldability
in spot welding
Soudage par résistance — Soudabilité —
Partie 2: Méthodes d’évaluation de la soudabilité par points
Reference number
ISO 18278-2:2016(E)
©
ISO 2016
ISO 18278-2:2016(E)
© ISO 2016, 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
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ii © ISO 2016 – All rights reserved

ISO 18278-2:2016(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Welding equipment . 2
4.1 General . 2
4.2 Electrodes . 2
4.3 Welding current . 2
4.4 Mechanical settings . 2
4.5 Measurement of parameters . 2
4.5.1 Welding current and electrode force . 2
4.5.2 Electrode cooling water flow rate . 2
4.6 Measurement of results . 3
4.6.1 Weld diameter . 3
4.6.2 Detection of expulsion . 3
5 Preliminary adjustments . 3
5.1 Electrode alignment . 3
5.2 Electrode conditioning . 3
6 Determination of the welding current range . 3
6.1 Test specimens . 3
6.2 Welding parameters . 3
6.3 Test procedure . 3
6.4 Current range criteria . 4
6.5 Three sheet and multiple stack-ups . 4
7 Estimation of electrode life . 4
7.1 Test specimens . 4
7.2 Welding parameters . 4
7.3 Procedure . 5
7.4 Test criteria, interpretation of results . 5
8 Test report . 6
8.1 General . 6
8.2 Welding current range . 6
8.3 Electrode life . 6
Annex A (informative) Electrode alignment . 7
Annex B (informative) Specific conditions for steel sheet customer qualification .9
Annex C (informative) Test specimens for mechanical characterization .12
Annex D (informative) Example of test report for welding current range .14
Annex E (informative) Example of test report for electrode life test .15
Bibliography .16
ISO 18278-2:2016(E)
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 normally 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 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 different appr
...