EN ISO 14270:2016

Resistance welding - Destructive testing of welds - Specimen dimensions and procedure for mechanized peel testing resistance spot, seam and embossed projection welds (ISO 14270:2016)

ISO 14270:2016 specifies specimen dimensions and a testing procedure for mechanized peel testing of single spot, seam and embossed projection welds, in overlapping sheets, in any metallic material of thickness 0,5 mm to 3 mm, where the welds have a maximum diameter of 7√t (where t is the sheet thickness in mm).
For welds of diameter between 5√t and 7√t, the peel strength values obtained may be lower than expected when using the recommended test specimen dimensions because the test specimen width is designed for welds of diameter of 5√t or less.
The object of mechanized peel testing is to determine the peel strength that the test specimen can sustain.

Widerstandsschweißen - Zerstörende Prüfung von Schweißverbindungen - Probenmaße und Verfahren für die mechanisierte Schälprüfung an Widerstandspunkt-, Rollennaht- und Buckelschweißungen mit geprägten Buckeln (ISO 14270:2016)

Diese Internationale Norm legt Probenmaße und ein Verfahren für die mechanisierte Schälprüfung an Einzelpunkt-, Rollennaht- und geprägte Buckelschweißungen an überlappenden Blechen aus beliebigen metallischen Werkstoffen mit einer Blechdicke von 0,5 mm bis 3 mm fest, wobei die Schweißverbindungen einen maximalen Durchmesser von 7√t haben (dabei ist t die Blechdicke in mm).
An Schweißungen mit Durchmessern zwischen 5√t und 7√t können die Werte der Schälkraft geringer als erwartet sein, wenn die empfohlenen Probenmaße angewendet werden, da die Probenbreite für Schwei߬verbindungen mit einem Durchmesser von höchstens 5√t oder weniger vorgesehen ist.
Das Ziel der mechanisierten Schälprüfung ist die Bestimmung der Schälfestigkeit, die die Probe ertragen kann.

Soudage par résistance - Essais destructifs des soudures - Dimensions des éprouvettes et mode opératoire pour l'essai de pelage mécanisé des soudures par résistance par points, à la molette et par bossages (ISO 14270:2016)

ISO 14270:2016 spécifie les dimensions des éprouvettes, ainsi qu'un mode opératoire s'appliquant aux essais par pelage mécanisés des soudures à un point de soudage isolé, à la molette et par bossages, réalisées sur des tôles soudées par recouvrement, dans tout matériau métallique d'une épaisseur de 0,5 mm à 3 mm, où les soudures ont un diamètre maximal de 7√t (où t est l'épaisseur de la tôle, en millimètres).
Dans le cas des soudures d'un diamètre compris entre 5√t et 7√t, la valeur de l'effort de pelage obtenue peut être inférieure à la valeur attendue lorsqu'on adopte les dimensions recommandées de l'éprouvette d'essai car la largeur des éprouvettes d'essai est conçue pour les diamètres de soudures inférieurs ou égal à 5√t.
L'essai par pelage mécanisé vise à déterminer la résistance au pelage qu'une éprouvette peut supporter.

Uporovno varjenje - Porušitveno preskušanje zvarov - Mere preskušancev in postopek za mehanizirano luščilno preskušanje uporovnih točkovnih, kolutnih in bradavičnih zvarov (ISO 14270:2016)

Ta mednarodni standard določa mere preskušancev in postopek za mehanizirano luščilno preskušanje enotočkovnih, kolutnih in bradavičnih zvarov, v prekrivajočih se slojih, v katerem koli kovinskem materialu debeline 0,5 do 3 mm, pri čemer je največji premer zvarov 7√t (t je debelina sloja v mm).
Kadar se za zvare s premerom med 5√t in 7√t uporabljajo priporočene dimenzije preskušancev, so lahko pridobljene vrednosti za odpornost proti luščenju nižje od pričakovanih, ker je širina preskušancev zasnovana za zvare s premerom največ 5√t.
Cilj mehaniziranega luščilnega preskušanja je določiti moč luščenja, ki jo lahko preskušanec
prenese.

General Information

• Status: Published
• Publication Date: 22-Mar-2016
• Withdrawal Date: 29-Sep-2016
• ICS: 25.160.40 - Welded joints and welds
• Technical Committee: CEN/TC 121 - Welding
• Drafting Committee: CEN/TC 121/WG 21 - Testing of welds
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 23-Mar-2016
• Due Date: 30-Nov-2015
• Completion Date: 23-Mar-2016
• Ref Project: SIST EN ISO 14270:2016 - Resistance welding - Destructive testing of welds - Specimen dimensions and procedure for mechanized peel testing resistance spot, seam and embossed projection welds (ISO 14270:2016)

Relations

• Replaces: EN ISO 14270:2001 - Specimen dimensions and procedure for mechanized peel testing resistance spot, seam and embossed projection welds (ISO 14270:2000)
• Effective Date: 20-Mar-2013

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2016
1DGRPHãþD
SIST EN ISO 14270:2002
8SRURYQRYDUMHQMH3RUXãLWYHQRSUHVNXãDQMH]YDURY0HUHSUHVNXãDQFHYLQ
SRVWRSHN]DPHKDQL]LUDQROXãþLOQRSUHVNXãDQMHXSRURYQLKWRþNRYQLKNROXWQLKLQ
EUDGDYLþQLK]YDURY,62
Resistance welding - Destructive testing of welds - Specimen dimensions and procedure
for mechanized peel testing resistance spot, seam and embossed projection welds (ISO
14270:2016)
Widerstandsschweißen - Zerstörende Prüfung von Schweißverbindungen - Probenmaße
und Verfahren für die mechanisierte Schälprüfung an Widerstandspunkt-, Rollennaht-
und Buckelschweißungen mit geprägten Buckeln (ISO 14270:2016)
Soudage par résistance - Essais destructifs des soudures - Dimensions des éprouvettes
et mode opératoire pour l'essai par déboutonnage mécanisé des soudures par
résistance par points, à la molette et par bossages (ISO 14270:2016)
Ta slovenski standard je istoveten z: EN ISO 14270:2016
ICS:
25.160.40 Varjeni spoji in vari Welded joints and welds
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 14270
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2016
EUROPÄISCHE NORM
ICS 25.160.40 Supersedes EN ISO 14270:2001
English Version
Resistance welding - Destructive testing of welds -
Specimen dimensions and procedure for mechanized peel
testing resistance spot, seam and embossed projection
welds (ISO 14270:2016)
Soudage par résistance - Essais destructifs des Widerstandsschweißen - Zerstörende Prüfung von
soudures - Dimensions des éprouvettes et mode Schweißverbindungen - Probenmaße und Verfahren
opératoire pour l'essai de pelage mécanisé des für die mechanisierte Schälprüfung an
soudures par résistance par points, à la molette et par Widerstandspunkt-, Rollennaht- und
bossages (ISO 14270:2016) Buckelschweißungen mit geprägten Buckeln (ISO
14270:2016)
This European Standard was approved by CEN on 13 December 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 14270:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 14270:2016) has been prepared by IIW International Institute of Welding 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 September 2016, and conflicting national standards
shall be withdrawn at the latest by September 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 14270:2001.
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 14270:2016 has been approved by CEN as EN ISO 14270:2016 without any modification.
INTERNATIONAL ISO
STANDARD 14270
Second edition
2016-03-01
Resistance welding — Destructive
testing of welds — Specimen
dimensions and procedure for
mechanized peel testing resistance
spot, seam and embossed projection
welds
Soudage par résistance — Essais destructifs des soudures —
Dimensions des éprouvettes et mode opératoire pour l’essai de pelage
mécanisé des soudures par résistance par points, à la molette et par
bossages
Reference number
ISO 14270:2016(E)
©
ISO 2016
ISO 14270:2016(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
the requester.
ISO copyright office
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Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2016 – All rights reserved

ISO 14270:2016(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test pieces and specimens . 2
5 Preparation of mechanized peel test specimens . 5
5.1 General . 5
5.2 Bending procedure of weld test specimens after welding . 5
5.3 Bending procedure of test specimens before welding — Alternative procedure . 5
5.4 Dimensions and accuracy . 8
6 Peel testing procedure and test equipment . 9
7 Re-test .10
8 Test report .10
Annex A (normative) Measurement of seam weld size .12
Annex B (informative) Influence of spot weld position on test results .13
Annex C (informative) Examples of bending tools .14
Annex D (informative) Determination of the bending centre position with press brake systems .16
Bibliography .17
ISO 14270:2016(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 approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/IIW, International Institute of Welding,
Commission III.
This second edition cancels and replaces the first edition (ISO 14270:2000), which has been technically
revised.
Requests for official interpretations of any aspect of this International Standard should be directed to
the ISO Central Secretariat, who will forward them to the IIW Secretariat for an official response.
iv © ISO 2016 – All rights reserved

ISO 14270:2016(E)
Introduction
This edition of ISO 14270 no longer includes figures showing failure types and modes for tensile shear
and cross tension testing in accordance with ISO 14329.
ISO 14270 has been revised to align it with ISO 17677-1. This edition of ISO 14270 is now applicable
to testing of welds made in high strength materials including ultra-high strength materials as well
as ordinary strength materials. Some of the figures related to the failure types and modes have been
revised in accordance with ISO 17677-1.
INTERNATIONAL STANDARD ISO 14270:2016(E)
Resistance welding — Destructive testing of welds —
Specimen dimensions and procedure for mechanized
peel testing resistance spot, seam and embossed
projection welds
1 Scope
This International Standard specifies specimen dimensions and a testing procedure for mechanized
peel testing of single spot, seam and embossed projection welds, in overlapping sheets, in any metallic
material of thickness 0,5 mm to 3 mm, where the welds have a maximum diameter of 7√t (where t is the
sheet thickness in mm).
For welds of diameter between 5√t and 7√t, the peel strength values obtained may be lower than
expected when using the recommended test specimen dimensions because the test specimen width is
designed for welds of diameter of 5√t or less.
The object of mechanized peel testing is to determine the peel strength that the test specimen can
sustain.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenc
...