EN ISO 10447:2015

SLOVENSKI STANDARD
01-maj-2015
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SIST EN ISO 10447:2007
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Resistance welding - Peel and chisel testing of resistance spot and projection welds (ISO
10447:2015)
Widerstandsschweißen - Schäl-, Meißel- und Keilprüfung von Widerstandspunkt- und
Buckelschweißverbindungen (ISO 10447:2015)
Soudage par résistance - Essais de déboutonnage au burin et de pelage appliqués aux
soudures par résistance par points et par bossages (ISO 10447:2015)
Ta slovenski standard je istoveten z: EN ISO 10447:2015
ICS:
25.160.40 Varjeni spoji in vari Welded joints
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 10447
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2015
ICS 25.160.40 Supersedes EN ISO 10447:2007
English Version
Resistance welding - Testing of welds - Peel and chisel testing of
resistance spot and projection welds (ISO 10447:2015)
Soudage par résistance - Essais des soudures - Essais de Widerstandsschweißen - Schäl- und Meißelprüfung von
pelage et de déboutonnage au burin appliqués aux Widerstandspunkt- und Buckelschweißverbindungen (ISO
soudures par résistance par points et par bossages (ISO 10447:2015)
10447:2015)
This European Standard was approved by CEN on 12 December 2014.

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
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10447:2015 E
worldwide for CEN national Members.

Contents Page
Foreword .3
Foreword
This document (EN ISO 10447:2015) 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 August 2015, and conflicting national standards shall be withdrawn at
the latest by August 2015.
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 10447:2007.
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 10447:2015 has been approved by CEN as EN ISO 10447:2015 without any modification.

INTERNATIONAL ISO
STANDARD 10447
Third edition
2015-02-01
Resistance welding — Testing of welds
— Peel and chisel testing of resistance
spot and projection welds
Soudage par résistance — Essais des soudures — Essais de pelage et
de déboutonnage au burin appliqués aux soudures par résistance par
points et par bossages
Reference number
ISO 10447:2015(E)
©
ISO 2015
ISO 10447:2015(E)
© ISO 2015
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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2015 – All rights reserved

ISO 10447:2015(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test specimens. 2
5 Test procedure . 3
5.1 Chisel test. 3
5.2 Peel test . 5
5.3 Measurement of weld size . 5
6 Test report .10
Bibliography .11
ISO 10447:2015(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 IIW, International Institute of Welding, Commission III.
This third edition cancels and replaces the second edition (ISO 10447:2006), which has been technically
revised.
iv © ISO 2015 – All rights reserved

ISO 10447:2015(E)
Introduction
This edition of ISO 10447 includes figures showing failure types and fracture modes of resistance spot
and embossed projection welds in accordance with ISO 14329:2003.
The previous edition of ISO 10447 was revised to align it with ISO 17677-1.
INTERNATIONAL STANDARD ISO 10447:2015(E)
Resistance welding — Testing of welds — Peel and chisel
testing of resistance spot and projection welds
1 Scope
This International Standard specifies the procedures and recommended tooling to be used for peel and
chisel testing of resistance spot and projection welds. This International Standard applies to welds made
in two or more sheets in the thickness range of 0,5 mm to 3,0 mm.
The aim of these tests is to determine
— weld size and failure type when welds are destructively tested, and
— verification of welds by non-destructive chisel tests.
NOTE The preferred method of peel testing seam welds (mechanized peel testing) is covered in ISO 14270.
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 referenced document (including any amendments) applies.
ISO 14270, Specimen dimensions and procedure for mechanized peel testing resistance spot, seam and
embossed projection welds
ISO 17677-1, Resistance welding — Vocabulary — Part 1: Spot, projection and seam welding
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 17677-1 and the following
apply.
3.1
chisel test
destructive test with a chisel in which welds are tested by applying a predominantly tensile force that
results in stresses primarily normal to the surface of the joint interface
Note 1 to entry: See Figure 1.
3.2
peel test
destructive test in which welds are tested by applying a peel force that results in stresses primarily
normal to the surface of the joint interface
Note 1 to entry: See Figure 2a and Figure 2b.
ISO 10447:2015(E)
a) Type 1 b) Type 2 c) Type 3
(recessed chisel) (testing from one side) (testing from both sides)
Figure 1 — Chisel testing of resistance spot and protection welded joints
a) Manual peel test b) Mechanized peel test
Figure 2 — Peel testing of resistance spot and projection welded joints
4 Test specimens
When used for quality control in production, tests shall be conducted on actual components or specimens
taken from actual components.
When used for setting welding parameters, where it is not practical to use actual components, separate
welded test pieces may be used. The test pieces shall be produced from the same material used for
the component, and welded under conditions adapted to simulate and produce the same required weld
quality. The effects of different shunt or impedance conditions should be taken into account when
producing the test pieces by inserting sufficient material in the throat of the machine to approximate
the magnetic effect of the workpiece under production conditions.
2 © ISO 2015 – All rights reserved

ISO 10447:2015(E)
5 Test procedure
5.1 Chisel test
A chisel shall be used to separate the sheets adjacent to the weld under test.
Typical chisel designs are shown in Figure 3 and Figure 4. The chisel geometry should be chosen based
on the workpiece t
...