EN ISO 14271:2017

Resistance welding - Vickers hardness testing (low-force and microhardness) of resistance spot, projection, and seam welds (ISO 14271:2017)

ISO 14271:2017 specifies the procedures for the hardness testing of etched cross-sections of resistance spot, projection, and seam welds.
The aim of the hardness tests is to determine the Vickers hardness, in the low-force or microhardness range, of the weld nugget, the heat affected zone, and parent material in ferrous or non-ferrous metals for welds made in sheets of thickness 0,5 mm to 6 mm.

Widerstandsschweißen - Vickers-Härteprüfung (Kleinkraft- und Mikrohärtebereich) von Widerstandspunkt-, Buckel- und Rollennahtschweißverbindungen (ISO 14271:2017)

Soudage par résistance - Essais de dureté Vickers (force réduite et microdureté) sur soudures par résistance par points, par bossages et à la molette (ISO 14271:2017)

ISO 14271:2017 spécifie les modes opératoires pour l'essai de dureté de sections ayant subi une attaque métallographique des soudures par résistance par points, par bossages et à la molette.
Les essais de dureté visent à déterminer la dureté Vickers, sous force réduite ou de microdureté, du noyau de soudure, de la zone affectée thermiquement et du matériau de base des métaux ferreux ou non ferreux des soudures réalisées dans des tôles d'épaisseur comprise entre 0,5 mm et 6 mm.

Uporovno varjenje - Preskušanje trdote po Vickersu (majhna obremenitev in mikro trdota) na uporovnih točkovnih, bradavičnih in kolutnih zvarih (ISO 14271:2017)

Ta dokument določa postopke za preskušanje trdote jedkanih prerezov pri točkovnem, bradavičnem in kolutnem uporovnem varjenju.
Namen preskusov trdote je določanje trdote po Vickersu, pri razponu majhne sile ali mikrotrdote
varjenega zrna, območja, na katerega vpliva toplota, in osnovnega materiala pri železnih ali neželeznih kovinah za zvare, opravljene v ploščah debeline med 0,5 in 6 mm.

General Information

• Status: Published
• Publication Date: 26-Sep-2017
• Withdrawal Date: 30-Mar-2018
• ICS: 25.160.40 - Welded joints and welds
• Technical Committee: CEN/TC 121 - Welding
• Drafting Committee: CEN/TC 121 - Welding
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 27-Sep-2017
• Completion Date: 27-Sep-2017
• Ref Project: SIST EN ISO 14271:2018 - Resistance welding - Vickers hardness testing (low-force and microhardness) of resistance spot, projection, and seam welds (ISO 14271:2017)

Relations

• Replaces: EN ISO 14271:2011 - Resistance welding - Vickers hardness testing (low-force and microhardness) of resistance spot, projection, and seam welds (ISO 14271:2011)
• Effective Date: 04-Oct-2017
• Replaces: EN ISO 14271:2011/AC:2012 - Resistance welding - Vickers hardness testing (low-force and microhardness) of resistance spot, projection, and seam welds - Technical Corrigendum 1 (ISO 14271:2011/Cor 1:2012)
• Effective Date: 17-Aug-2016

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2018
1DGRPHãþD
SIST EN ISO 14271:2011
SIST EN ISO 14271:2011/AC:2012
8SRURYQRYDUMHQMH3UHVNXãDQMHWUGRWHSR9LFNHUVXPDMKQDREUHPHQLWHYLQPLNUR
WUGRWDQDXSRURYQLKWRþNRYQLKEUDGDYLþQLKLQNROXWQLK]YDULK,62
Resistance welding - Vickers hardness testing (low-force and microhardness) of
resistance spot, projection, and seam welds (ISO 14271:2017)
Widerstandsschweißen - Vickers-Härteprüfung (Kleinkraft- und Mikrohärtebereich) von
Widerstandspunkt-, Buckel- und Rollennahtschweißverbindungen (ISO 14271:2017)
Soudage par résistance - Essais de dureté Vickers (force réduite et microdureté) sur
soudures par résistance par points, par bossages et à la molette (ISO 14271:2017)
Ta slovenski standard je istoveten z: EN ISO 14271:2017
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 14271
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2017
EUROPÄISCHE NORM
ICS 25.160.40 Supersedes EN ISO 14271:2011
English Version
Resistance welding - Vickers hardness testing (low-force
and microhardness) of resistance spot, projection, and
seam welds (ISO 14271:2017)
Soudage par résistance - Essais de dureté Vickers Widerstandsschweißen - Vickers-Härteprüfung
(force réduite et microdureté) sur soudures par (Kleinkraft- und Mikrohärtebereich) von
résistance par points, par bossages et à la molette (ISO Widerstandspunkt-, Buckel- und
14271:2017) Rollennahtschweißverbindungen (ISO 14271:2017)
This European Standard was approved by CEN on 26 September 2017.

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, 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14271:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 14271:2017) has been prepared by Technical Committee ISO/TC 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 March 2018, and conflicting national standards shall
be withdrawn at the latest by March 2018.
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 14271:2011.
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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 14271:2017 has been approved by CEN as EN ISO 14271:2017 without any modification.
INTERNATIONAL ISO
STANDARD 14271
Third edition
2017-08
Resistance welding — Vickers
hardness testing (low-force and
microhardness) of resistance spot,
projection, and seam welds
Soudage par résistance — Essais de dureté Vickers (force réduite et
microdureté) sur soudures par résistance par points, par bossages et
à la molette
Reference number
ISO 14271:2017(E)
©
ISO 2017
ISO 14271:2017(E)
© ISO 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 copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2017 – All rights reserved

ISO 14271:2017(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Applied forces for testing resistance welds . 2
5 Test pieces and testing locations . 2
5.1 Test pieces . 2
5.2 Testing locations . 2
6 Test equipment. 2
7 Hardness test locations and procedure . 5
7.1 Choice of test . 5
7.2 Positions of hardness indentations . 5
7.3 Testing procedure . 6
7.4 Determination of hardness values . 6
8 Test report . 7
Bibliography . 8
ISO 14271:2017(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 t
...