SIST EN ISO 25239-3:2012
(Main)Friction stir welding - Aluminium - Part 3: Qualification of welding operators (ISO 25239-3:2011)
Friction stir welding - Aluminium - Part 3: Qualification of welding operators (ISO 25239-3:2011)
This standard specifies requirements for the friction stir welding, and variants thereof, of aluminium components manufactured from aluminium. It specifies requirements particular to friction stir welding related to welding knowledge, quality need, welding procedure
specification, welding procedure approval and welding personnel.
Rührreibschweißen - Aluminium - Teil 3: Qualifizierung der Bediener (ISO 25239-3:2011)
Diese Internationale Norm legt Anforderungen an die Prüfung von Bedienern für das Rührreibschweißen von Aluminium fest. Der Begriff Aluminium bezieht sich in dieser Norm auf Aluminium und seine Legierungen.
Soudage par friction-malaxage - Aluminium - Partie 3: Qualification des opérateurs soudeurs (ISO 25239-3:2011)
L'ISO 25239-3:2011 spécifie les exigences relatives à la qualification des opérateurs soudeurs pour le soudage par friction-malaxage de l'aluminium. Dans l'ISO 25239-3:2011, le terme «aluminium» se rapporte à l'aluminium et ses alliages.
L'ISO 25239-3:2011 ne s'applique pas au soudage par points par friction-malaxage.
Varjenje z gnetenjem - Aluminij - 3. del: Kvalifikacija osebja (ISO 25239-3:2011)
Ta del standarda ISO 25239 določa zahteve za kvalifikacijo osebja za varjenje aluminija z gnetenjem (FSW). V tem delu standarda ISO 25239 se izraz »aluminij« nanaša na aluminij in njegove zlitine.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 25239-3:2012
01-marec-2012
Varjenje z gnetenjem - Aluminij - 3. del: Kvalifikacija osebja (ISO 25239-3:2011)
Friction stir welding - Aluminium - Part 3: Qualification of welding operators (ISO 25239-
3:2011)
Rührreibschweißen - Aluminium - Teil 3: Qualifizierung der Bediener (ISO 25239-3:2011)
Soudage par friction-malaxage - Aluminium - Partie 3: Qualification des opérateurs
soudeurs (ISO 25239-3:2011)
Ta slovenski standard je istoveten z: EN ISO 25239-3:2011
ICS:
03.100.30 Vodenje ljudi Management of human
resources
25.160.10 Varilni postopki in varjenje Welding processes
77.120.10 Aluminij in aluminijeve zlitine Aluminium and aluminium
alloys
SIST EN ISO 25239-3:2012 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 25239-3:2012
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SIST EN ISO 25239-3:2012
EUROPEAN STANDARD
EN ISO 25239-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2011
ICS 25.160.01; 25.160.10
English Version
Friction stir welding - Aluminium - Part 3: Qualification of welding
operators (ISO 25239-3:2011)
Soudage par friction-malaxage - Aluminium - Partie 3: Rührreibschweißen - Aluminium - Teil 3: Qualifizierung der
Qualification des opérateurs soudeurs (ISO 25239-3:2011) Bediener (ISO 25239-3:2011)
This European Standard was approved by CEN on 4 June 2011.
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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 25239-3:2011: E
worldwide for CEN national Members.
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SIST EN ISO 25239-3:2012
EN ISO 25239-3:2011 (E)
Contents Page
Foreword .3
2
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SIST EN ISO 25239-3:2012
EN ISO 25239-3:2011 (E)
Foreword
This document (EN ISO 25239-3:2011) has been prepared by the International Institute of Welding 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 June 2012, and conflicting national standards shall be withdrawn at
the latest by June 2012.
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.
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, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 25239-3:2011 has been approved by CEN as a EN ISO 25239-3:2011 without any
modification.
3
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SIST EN ISO 25239-3:2012
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SIST EN ISO 25239-3:2012
INTERNATIONAL ISO
STANDARD 25239-3
First edition
2011-12-15
Friction stir welding — Aluminium —
Part 3:
Qualification of welding operators
Soudage par friction-malaxage — Aluminium —
Partie 3: Qualification des opérateurs soudeurs
Reference number
ISO 25239-3:2011(E)
©
ISO 2011
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SIST EN ISO 25239-3:2012
ISO 25239-3:2011(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2011
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing 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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E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2011 – All rights reserved
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SIST EN ISO 25239-3:2012
ISO 25239-3:2011(E)
Contents Page
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 1
4.1 Welding operator qualification . 1
4.2 Essential variables and ranges of qualification . 2
4.3 Qualification methods . 3
4.4 Test welds . 4
4.5 Test record . 5
5 Certificate . 5
5.1 General . 5
5.2 Period of validity . 6
Annex A (normative) Functional knowledge of the welding unit . 7
Annex B (informative) Knowledge of welding technology . 8
Annex C (informative) Qualification test certificate for FSW operators . 10
Bibliography . 12
© ISO 2011 – All rights reserved iii
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SIST EN ISO 25239-3:2012
ISO 25239-3:2011(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 25239-3 was prepared by the International Institute of Welding, which has been approved as an
international standardizing body in the field of welding by the ISO Council.
ISO 25239 consists of the following parts, under the general title Friction stir welding — Aluminium:
Part 1: Vocabulary
Part 2: Design of weld joints
Part 3: Qualification of welding operators
Part 4: Specification and qualification of welding procedures
Part 5: Quality and inspection requirements
Requests for official interpretations of any aspect of this part of ISO 25239 should be directed to the ISO
Central Secretariat, who will forward them to the IIW Secretariat for an official response.
iv © ISO 2011 – All rights reserved
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SIST EN ISO 25239-3:2012
ISO 25239-3:2011(E)
Introduction
Welding processes are widely used in the fabrication of engineered structures. During the second half of the
twentieth century, fusion welding processes, wherein fusion is obtained by the melting of parent material and
usually a filler metal, dominated the welding of large structures. Then, in 1991, Wayne Thomas at TWI
invented friction stir welding (FSW), which is carried out entirely in the solid phase (no melting).
The increasing use of FSW has created the need for this International Standard in order to ensure that
welding is carried out in the most effective way and that appropriate control is exercised over all aspects of the
operation. This International Standard focuses on the FSW of aluminium because, at the time of publication,
the majority of commercial applications for FSW involved aluminium. Examples include railway carriages,
consumer products, food processing equipment, aerospace structures, and marine vessels.
The parts of this International Standard are listed in the foreword.
Part 1 defines terms specific to FSW.
Part 2 specifies design requirements for FSW joints in aluminium.
Part 3 specifies requirements for the qualification of an operator for the FSW of aluminium.
Part 4 specifies requirements for the specification and qualification of welding procedures for the FSW of
aluminium. A welding procedure specification (WPS) is needed to provide a basis for planning welding
operations and for quality control during welding. Welding is considered a special process in the terminology
of standards for quality systems. Standards for quality systems usually require that special processes be
carried out in accordance with written procedure specifications. Metallurgical deviations constitute a special
problem. Because non-destructive testing of the mechanical properties is impossible at the present level of
technology, this has resulted in the establishment of a set of rules for qualification of the welding procedure
prior to the release of the WPS to actual production. ISO 25239-4 defines these rules.
Part 5 specifies a method for determining the capability of a manufacturer to use the FSW process for the
production of aluminium products of the specified quality. It defines specific quality requirements, but does not
assign those requirements to any specific product group. To be effective, welded structures should be free
from serious problems in production and in service. To achieve that goal, it is necessary to provide controls
from the design phase through material selection, fabrication, and inspection. For example, poor design can
create serious and costly difficulties in the workshop, on site or in service. Incorrect material selection can
result in welding problems, such as cracking. Welding procedures have to be correctly formulated and
qualified to avoid imperfections. To ensure the fabrication of a quality product, management should
understand the sources of potential trouble and introduce appropriate quality and inspection procedures.
Supervision should be implemented to ensure that the specified quality is achieved.
© ISO 2011 – All rights reserved v
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SIST EN ISO 25239-3:2012
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SIST EN ISO 25239-3:2012
INTERNATIONAL STANDARD ISO 25239-3:2011(E)
Friction stir welding — Aluminium —
Part 3:
Qualification of welding operators
1 Scope
This part of ISO 25239 specifies requirements for the qualification of welding operators for the friction stir
welding (FSW) of aluminium. In this part of ISO 25239, the term «aluminium» refers to aluminium and its
alloys.
This part of ISO 25239 does not apply to friction stir spot welding.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
1)
ISO 17636 (all parts), Non-destructive testing of welds — Radiographic testing
ISO 17640, Non-destructive testing of welds — Ultrasonic testing — Techniques, testing levels, and
assessment
ISO 25239-1, Friction stir welding — Aluminium — Part 1: Vocabulary
ISO 25239-4:2011, Friction stir welding — Aluminium — Part 4: Specification and qualification of welding
procedures
ISO 25239-5:2011, Friction stir welding — Aluminium — Part 5: Quality and inspection requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 25239-1 apply.
4 Requirements
4.1 Welding operator qualification
Welding operators shall be qualified by one of the following tests, as detailed in 4.3:
standard welding test, see 4.3.1;
1)
To be published. (Revision of ISO 17636:2003)
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SIST EN ISO 25239-3:2012
ISO 25239-3:2011(E)
welding procedure test, see 4.3.2;
pre-production welding test or production welding test, see 4.3.3;
production welding sample test, see 4.3.4.
In addition, the welding operator's knowledge of the welding unit to be used for the qualification test shall be
tested. See Annex A.
Any of the welding operator qualification tests can be supplemented by a test of knowledge related to welding
technology. Such a test is recommended, but it is not mandatory. Annex B includes an example of such an
examination.
The essential variables and ranges of qualification are specified in 4.2 and the validity is specified in Clause 5.
Provided that the welding operator works in accordance with a welding procedure specification (WPS), the
range of qualification shall be limited only as specified in 4.2.
A suggested form for the welding operator's qualification certificate is shown in Annex C.
4.2 Essential variables and ranges of qualification
4.2.1 General
The qualification of welding operators is based on essential variables, as specified in 4.2.2 to 4.2.5. For each
essential variable, a range of qualification is defined. If a welding operator is required to weld outside the
range of qualification, then a new qualification test is required.
NOTE Friction stir welding is a mechanized process. However, because it is also a solid-state welding process, the
essential variables are different from those applicable to fusion welding processes.
4.2.2 Friction stir welding methods
A successful welding operator qualification t
...
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