EN ISO 6947:2011
(Main)Welding and allied processes - Welding positions (ISO 6947:2011)
Welding and allied processes - Welding positions (ISO 6947:2011)
ISO 6947:2011 defines welding positions for testing and production, for butt and fillet welds, in all product forms.
One annex gives examples of the limits of the slope of a weld axis and the rotation of the weld face about the weld axis for welding positions.
Another annex provides a comparison of International, European and US designations.
Schweißen und verwandte Prozesse - Schweißpositionen (ISO 6947:2011)
Diese Internationale Norm legt Schweißpositionen für das Prüfen und die Fertigung von Stumpf- und
Kehlnähten in allen Produktformen fest.
Anhang A enthält Beispiele über die Grenzen der Neigung einer Schweißnahtachse und der Drehung der
Schweißnahtoberfläche um die Schweißnahtachse für Schweißpositionen bei Fertigungsschweißungen.
Anhang B bietet einen Vergleich zwischen internationalen, europäischen und US-amerikanischen
Benennungen.
Soudage et techniques connexes - Positions de soudage (ISO 6947:2011)
L'ISO 6947:2011 définit des positions de soudage pour les essais et la production, pour les soudures bout à bout et pour les soudures en angle, pour toutes les formes de produit.
Une annexe donne des exemples de limites d'inclinaison de l'axe de la soudure et de limites de rotation de l'endroit de la soudure de part et d'autre de l'axe de soudure, pour les différentes positions de soudage.
Une autre annexe fournit une comparaison des désignations internationales, européennes et des États-Unis.
Varjenje in sorodni postopki - Položaji pri varjenju (ISO 6947:2011)
Ta mednarodni standard opredeljuje položaje pri varjenju za preskušanje in izdelavo soležnih in kotnih zvarov pri vseh oblikah proizvodov. Dodatek A podaja primere mej naklona osi zvara in rotacijo sprednje strani zvara okrog osi zvara za položaje pri varjenju v proizvodnih zvarih. Dodatek B podaja primerjavo mednarodnih, evropskih in ameriških oznak.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2012
1DGRPHãþD
SIST EN ISO 6947:1999
Varjenje in sorodni postopki - Položaji pri varjenju (ISO 6947:2011)
Welding and allied processes - Welding positions (ISO 6947:2011)
Schweißen und verwandte Prozesse - Schweißpositionen (ISO 6947:2011)
Soudage et techniques connexes - Positions de travail (ISO 6947:2011)
Ta slovenski standard je istoveten z: EN ISO 6947:2011
ICS:
01.040.25 Izdelavna tehnika (Slovarji) Manufacturing engineering
(Vocabularies)
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 6947
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2011
ICS 25.160.40 Supersedes EN ISO 6947:1997
English Version
Welding and allied processes - Welding positions (ISO
6947:2011)
Soudage et techniques connexes - Positions de soudage Schweißen und verwandte Prozesse - Schweißpositionen
(ISO 6947:2011) (ISO 6947:2011)
This European Standard was approved by CEN on 9 October 2010.
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 6947:2011: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
This document (EN ISO 6947:2011) 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 November 2011, and conflicting national standards shall be withdrawn
at the latest by November 2011.
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 6947:1997.
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 6947:2011 has been approved by CEN as a EN ISO 6947:2011 without any modification.
INTERNATIONAL ISO
STANDARD 6947
Third edition
2011-05-15
Welding and allied processes — Welding
positions
Soudage et techniques connexes — Positions de soudage
Reference number
ISO 6947:2011(E)
©
ISO 2011
ISO 6947:2011(E)
© 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
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Published in Switzerland
ii © ISO 2011 – All rights reserved
ISO 6947:2011(E)
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Terms and definitions .1
3 Welding positions.1
3.1 Main welding positions.1
3.2 Welding positions for production.5
3.3 Welding positions for testing.5
4 Designation .5
Annex A (informative) Limits of the slope of a weld axis and the rotation of the weld face about
the weld axis for welding positions in production welds.7
Annex B (informative) Comparison of international, European and US designations .13
Bibliography.17
ISO 6947:2011(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 6947 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee
SC 7, Representation and terms.
This third edition cancels and replaces the second edition (ISO 6947:1990), which has been technically
revised.
Requests for official interpretations of any aspect of this International Standard should be directed to the
Secretariat of ISO/TC 44/SC 7 via your national standards body. A complete listing of these bodies can be
found at www.iso.org.
iv © ISO 2011 – All rights reserved
ISO 6947:2011(E)
Introduction
This International Standard provides positions for standard discrete test piece orientation PA, PB, H-L045, etc.
that have been specified in this International Standard since the first edition (ISO 6947:1980).
In this revision, positions are defined for production welding. These positions are flat, horizontal, vertical, and
overhead. Unlike testing positions, these positions are contiguous.
The direction of welding is an essential parameter for determining the welding position, e.g. up or down.
The welding position is not dependent on the geometrical arrangement of the joint, e.g. butt or fillet joint, or
that of the semi-finished product. Welds of all types and in all directions are covered.
The main positions have been given symbols which can easily be used for designation purposes; these
symbols were chosen independently of possible meaningful abbreviations, i.e. they are not derived from any
particular language.
The relationship between testing positions and production welding positions is specified elsewhere, e.g. in
[1] [2]
ISO 9606 or ISO 15614 .
INTERNATIONAL STANDARD ISO 6947:2011(E)
Welding and allied processes — Welding positions
1 Scope
This International Standard defines welding positions for testing and production, for butt and fillet welds, in all
product forms.
Annex A gives examples of the limits of the slope of a weld axis and the rotation of the weld face about the
weld axis for welding positions in production welds.
Annex B provides a comparison of International, European and US designations.
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
welding position
position of a weld in space, which is defined relative to the slope of the axis and rotation of the face of the
weld relative to the horizontal plane
2.2
main welding position
welding position, designated PA, PB, PC, PD, PE, PF or PG
NOTE For PA, PB, PC, PD and PE, see Figure 1.
2.3
slope
S
angle of the axis of the weld relative to the main welding position
2.4
rotation
R
angle of the face of the weld relative to the main welding position
2.5
inclined angle
L
angle of the axis of the pipe
3 Welding positions
3.1 Main welding positions
The main welding positions are illustrated in Figure 1 with examples of their application for butt and fillet welds
in Figure 2.
PB PD
ISO 6947:2011(E)
8 2
0º
PC 270º PC
90º
7 3
180º
Key
1 flat 4 and 6 horizontal overhead
2 and 8 horizontal vertical 5 overhead
3 and 7 horizontal
Figure 1 — Main welding positions
Examples of main welding positions for butt and fillet welds are illustrated in Figure 2.
a
a a
a
Arrow shows welding position.
a) PA: flat position
a
a
a
Arrow shows welding position.
b) PB: horizontal vertical position
Figure 2 — Examples of main welding positions (continued)
2 © ISO 2011 – All rights reserved
PD PB
PE PA
ISO 6947:2011(E)
a
a
a
a
Arrow shows welding position.
c) PC: horizontal position
a
a
a
Arrow shows welding position.
d) PD: horizontal overhead position
a
a
a
a
Arrow shows welding position.
e) PE: overhead position
a
a
a
a
Arrow shows weld progression or direction.
f) PF: vertical up position
Figure 2 — Examples of main welding positions (continued)
ISO 6947:2011(E)
a
a
a
a
Arrow shows weld progression or direction.
g) PG: vertical down position
a, b
a, b
a, b
a, b
a
Arrow shows weld progression or direction.
b
For special purposes, e. g. testing of welders; this position is regarded as a main position.
h) PH: pipe position for welding upwards
a, b
a, b
a
Arrow shows weld progression or direction.
b
For special purposes, e. g. testing of welders; this position is regarded as a main position.
i) PJ: pipe position for welding downwards
a, b
a, b
a
Arrow shows weld progression or direction.
b
For special purposes, e. g. testing of welders; this position is regarded as a main position.
j) PK: pipe position for orbital welding
Figure 2 — Examples of main welding positions
4 © ISO 2011 – All rights reserved
ISO 6947:2011(E)
3.2 Welding positions for production
[1] [2]
Main welding positions can be used in other standards, e.g. ISO 9606 , ISO 15614 , to define the
orientation of welds in production welding after qualifying in one of the main welding positions PA, PB, H-L045,
etc. Slope and rotation ranges for welding positions in production are given in Table 1 for butt welds and in
Table 2 for fillet welds (see also examples in Annex A).
NOTE For asymmetric tolerances, plus means revolving the weld surface towards the main welding position PA and
minus towards the main welding position PE.
Table 1 — Slope and rotation ranges for welding positions in production butt welds
Slope Rotation
Welding position Main welding position
S R
Flat PA ±15° ±30°
+°60
Horizontal PC ±15°
−°
...
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