1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 6947:2011Welding and allied processes Welding positions (ISO6947:2011)BS EN ISO 6947:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementatio
2、n of EN ISO 6947:2011.It supersedes BS EN ISO 6947:1997 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee WEE/1, Definitions and symbols for welding.A list of organizations represented on this committee can beobtained on request to its secretary.This publ
3、ication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 63499 4ICS 25.160.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the au
4、thority of theStandards Policy and Strategy Committee on 31 May 2011.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 6947 May 2011 ICS 25.160.40 Supersedes EN ISO 6947:1997English Version Welding and allied processes - Welding positions (
5、ISO 6947:2011) Soudage et techniques connexes - Positions de soudage (ISO 6947:2011) Schweien und verwandte Prozesse - Schweipositionen (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 stipul
6、ate 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 St
7、andard 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 n
8、ational 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, Swit
9、zerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No.
10、 EN ISO 6947:2011: EBS EN ISO 6947:2011EN ISO 6947:2011 (E) 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 Europ
11、ean 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 el
12、ements 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 follo
13、wing 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, Slova
14、kia, 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. BS EN ISO 6947:2011ISO 6947:2011(E) ISO 2011 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope
15、1 2 Terms and definitions .1 3 Welding positions1 3.1 Main welding positions.1 3.2 Welding positions for production5 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 position
16、s in production welds7 Annex B (informative) Comparison of international, European and US designations 13 Bibliography17 BS EN ISO 6947:2011ISO 6947:2011(E) iv ISO 2011 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standard
17、s 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 organiz
18、ations, 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
19、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 % o
20、f 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 a
21、nd 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 o
22、f ISO/TC 44/SC 7 via your national standards body. A complete listing of these bodies can be found at www.iso.org. BS EN ISO 6947:2011ISO 6947:2011(E) ISO 2011 All rights reserved vIntroduction This International Standard provides positions for standard discrete test piece orientation PA, PB, H-L045
23、, 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 directio
24、n 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
25、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
26、is specified elsewhere, e.g. in ISO 96061or ISO 156142. BS EN ISO 6947:2011BS EN ISO 6947:2011INTERNATIONAL STANDARD ISO 6947:2011(E) ISO 2011 All rights reserved 1Welding and allied processes Welding positions 1 Scope This International Standard defines welding positions for testing and production,
27、 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 an
28、d 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 pos
29、ition, 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 th
30、e 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. BS EN ISO 6947:2011ISO 6947:2011(E) 2 ISO 2011 All rights reserved1PAPC PCPEPDPBPDPB2374568270 900180Key 1 flat 4 and
31、 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 aaaArrow shows welding position. a) PA: flat position aaaArrow shows welding position. b) PB: h
32、orizontal vertical position Figure 2 Examples of main welding positions (continued) BS EN ISO 6947:2011ISO 6947:2011(E) ISO 2011 All rights reserved 3aaaaArrow shows welding position. c) PC: horizontal position aaaArrow shows welding position. d) PD: horizontal overhead position aaaaArrow shows weld
33、ing position. e) PE: overhead position aaaaArrow shows weld progression or direction. f) PF: vertical up position Figure 2 Examples of main welding positions (continued) BS EN ISO 6947:2011ISO 6947:2011(E) 4 ISO 2011 All rights reservedaaaaArrow shows weld progression or direction. g) PG: vertical d
34、own position a, ba, ba, ba, baArrow shows weld progression or direction. bFor special purposes, e. g. testing of welders; this position is regarded as a main position. h) PH: pipe position for welding upwards a, ba, baArrow shows weld progression or direction. bFor special purposes, e. g. testing of
35、 welders; this position is regarded as a main position. i) PJ: pipe position for welding downwards a, ba, baArrow shows weld progression or direction. bFor special purposes, e. g. testing of welders; this position is regarded as a main position. j) PK: pipe position for orbital welding Figure 2 Exam
36、ples of main welding positions BS EN ISO 6947:2011ISO 6947:2011(E) ISO 2011 All rights reserved 53.2 Welding positions for production Main welding positions can be used in other standards, e.g. ISO 96061, ISO 156142, to define the orientation of welds in production welding after qualifying in one of
37、 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 we
38、lding position PA and minus towards the main welding position PE. Table 1 Slope and rotation ranges for welding positions in production butt welds Welding position Main welding position Slope S Rotation R Flat PA 15 30 Horizontal PC 15 6010+Overhead PE 80 80 Vertical PF, PG 7510+100180Table 2 Slope
39、and rotation ranges for welding positions in production fillet welds Welding position Main welding position Slope S Rotation R Flat PA 15 30 Horizontal vertical PB 15 1510+Horizontal PC 15 3510+Horizontal overhead PD 80 3510+Overhead PE 80 35 Vertical PF, PG 7510+1001803.3 Welding positions for test
40、ing Welding positions used during welding of a test piece shall not exceed 5 in slope and 10 in rotation from the main welding position. 4 Designation Main welding positions shall be designated by the appropriate symbol in accordance with Figures 1 and 2 (see Example 1). The symbol for the main weld
41、ing position may be supplemented by the values for slope and rotation, given in three digits (see Example 2). For circumferential welds in pipes with inclined axes, the indication of slope and rotation shall be simplified in accordance with Figures 1 and 2 (see Examples 3 and 4). BS EN ISO 6947:2011
42、ISO 6947:2011(E) 6 ISO 2011 All rights reservedEXAMPLE 1 The main welding position “horizontal vertical” (PB) shall be designated as follows: PB EXAMPLE 2 The main welding position “horizontal vertical” (PB), with slope of 15 and rotation of 10, shall be designated as follows: PB 015-010 EXAMPLE 3 T
43、he welding position on pipes with inclined axes, with welding direction “welding up” (H) and an inclined angle of 30, shall be designated as follows: H-L030 EXAMPLE 4 The welding position on pipes with inclined axes, with welding direction “welding down” (J) and an inclined angle of 60, shall be des
44、ignated as follows: J-L060 BS EN ISO 6947:2011ISO 6947:2011(E) ISO 2011 All rights reserved 7Annex 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 This annex describes, through a series of sketches, th
45、e 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 (see 3.2 and Tables 1 and 2). Figures A.1 to A.15 show sketches for butt welds and Figures A.16 to A.21 show sketches for fillet welds. 1215Key 1 horizontal plane 2 ve
46、rtical plane Figure A.1 Main welding position (PA) Figure A.2 Flat position (PA) slope limit BS EN ISO 6947:2011ISO 6947:2011(E) 8 ISO 2011 All rights reserved303015Figure A.3 Flat position (PA) rotation limit Figure A.4 Flat position (PA) slope limit and rotation limit 15Figure A.5 Main welding pos
47、ition (PC) Figure A.6 Horizontal position (PC) slope limit BS EN ISO 6947:2011ISO 6947:2011(E) ISO 2011 All rights reserved 960Figure A.7 Horizontal position (PC) rotation limit (+60) Figure A.8 Horizontal position (PC) rotation limit (10) 80Figure A.9 Main welding position (PE) Figure A.10 Overhead
48、 position (PE) slope limitBS EN ISO 6947:2011ISO 6947:2011(E) 10 ISO 2011 All rights reserved80Figure A.11 Overhead position (PE) rotation limit Figure A.12 Main welding position (PF, PG) 1075Figure A.13 Welding position (PF, PG) slope limit Figure A.14 Welding position (PF, PG) slope limit BS EN IS
49、O 6947:2011ISO 6947:2011(E) ISO 2011 All rights reserved 111007545Figure A.15 Welding position (PF, PG) slope limit and rotation limit Figure A.16 Main welding position (PA) 154530Figure A.17 Welding position (PA) slope limit Figure A.18 Welding position (PA) rotation limitBS EN ISO 6947:2011ISO 6947:2011(E) 12 ISO 2011 All rights reserved3015Figure A.19 Welding position (PA) slop
