1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 25239-4:2011Friction stir welding AluminiumPart 4: Specification and qualification ofwelding procedures (ISO 25239-4:2011)Copyright European Committee for Standardizati
2、on Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 25239-4:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO25239-4:2011.The UK participation in its preparation was entrust
3、ed to TechnicalCommittee WEE/41, Friction welding.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Sta
4、ndards Institution 2012ISBN 978 0 580 60295 5ICS 25.160.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 January 2012.Amendments issued since publicationDate T
5、ext affectedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 25239-4 December 2011 ICS 25.160.10 English Version Friction
6、stir welding - Aluminium - Part 4: Specification and qualification of welding procedures (ISO 25239-4:2011) Soudage par friction-malaxage - Aluminium - Partie 4: Descriptif et qualification des modes opratoires de soudage (ISO 25239-4:2011) Rhrreibschweien - Aluminium - Teil 4: Anforderung und Quali
7、fizierung von Schweiverfahren (ISO 25239-4:2011) 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 alterat
8、ion. 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 b
9、y 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,
10、 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 COMIT EUROPEN DE NORMALISATION EUROPISC
11、HES 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. EN ISO 25239-4:2011: ECopyright European Committee for Standardization Provided by IHS under license with
12、 CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 25239-4:2011EN ISO 25239-4:2011 (E) 3 Foreword This document (EN ISO 25239-4:2011) has been prepared by the International Institute of Welding in collaboration with Technical Committee CEN/TC 121 “Weldin
13、g” 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 i
14、s 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 fo
15、llowing 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, Sl
16、ovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 25239-4:2011 has been approved by CEN as a EN ISO 25239-4:2011 without any modification. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo rep
17、roduction or networking permitted without license from IHS-,-,-BS EN ISO 25239-4:2011ISO 25239-4:2011(E) ISO 2011 All rights reserved iiiContents Page Foreword iv Introduction . v 1 Scope 1 2 Normative references 1 3 Terms and definitions . 2 4 Symbols and abbreviated terms 2 5 Development and quali
18、fication of welding procedures . 2 5.1 General . 2 5.2 Technical content of a pWPS . 3 6 Qualification based on a welding procedure test 5 6.1 General . 5 6.2 Test pieces . 5 6.3 Examination and testing of test pieces . 7 6.4 Range of qualification . 13 6.5 Welding procedure qualification record . 1
19、3 7 Qualification based on pre-production welding test . 13 7.1 General . 13 7.2 Test pieces . 14 7.3 Examination and testing of test pieces . 14 7.4 Range of qualification . 14 7.5 Welding procedure qualification record . 14 Annex A (informative) Preliminary welding procedure specification 15 Annex
20、 B (informative) Non-destructive testing 16 Annex C (informative) Hammer S-bend test of lap welds . 17 Annex D (informative) Welding procedure qualification record form 19 Bibliography 22 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduc
21、tion or networking permitted without license from IHS-,-,-BS EN ISO 25239-4:2011ISO 25239-4:2011(E) iv ISO 2011 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Inter
22、national 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 wit
23、h 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 technica
24、l 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. ISO 25239-4 was prepa
25、red 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 join
26、ts 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 th
27、em to the IIW Secretariat for an official response. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 25239-4:2011ISO 25239-4:2011(E) ISO 2011 All rights reserved vIntrod
28、uction 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, i
29、n 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 appropriat
30、e 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 equipm
31、ent, aerospace structures, and marine vessels. To 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
32、 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 speci
33、al 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 mecha
34、nical 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. This part of ISO 25239 defines these rules. Part 5 specifies a method for deter
35、mining 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 ser
36、ious 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
37、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 qualit
38、y and inspection procedures. Supervision should be implemented to ensure that the specified quality is achieved. The International Organization for Standardization (ISO) draws attention to the fact that it is claimed that compliance with this document may involve the use of patents concerning fricti
39、on stir welding given in Clauses 5 to 7. ISO takes no position concerning the evidence, validity and scope of this patent right. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-B
40、S EN ISO 25239-4:2011ISO 25239-4:2011(E) vi ISO 2011 All rights reservedThe following holder of this patent right has assured ISO that it is willing to negotiate licenses under reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement
41、 of the holder of this patent right is registered with ISO. Further information may be obtained from: TWI Ltd Granta Park, Great Abington CAMBRIDGE CB21 6AL United Kingdom Telephone: +44 1223 891162 (international); 01223 891162 (national) Telefax: +44 1223 892588 (international); 01223 892588 (nati
42、onal) E-mail: twitwi.co.uk Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights other than those identified above. ISO shall not be held responsible for identifying any or all such patent rights. Copyright European Committee for Standar
43、dization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 25239-4:2011INTERNATIONAL STANDARD ISO 25239-4:2011(E) ISO 2011 All rights reserved 1Friction stir welding Aluminium Part 4: Specification and qualification of
44、welding procedures 1 Scope This part of ISO 25239 specifies the requirements for the specification and qualification of welding procedures 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
45、 not apply to friction stir spot welding. NOTE Service requirements, materials or manufacturing conditions can require more comprehensive testing than is specified in this part of ISO 25239. 2 Normative references The following referenced documents are indispensable for the application of this docum
46、ent. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 209, Aluminium and aluminium alloys Chemical composition ISO 857-1, Welding and allied processes Vocabulary Part 1: Metal welding p
47、rocesses ISO 2107, Aluminium and aluminium alloys Wrought products Temper designations ISO 3134 (all parts), Light metals and their alloys Terms and definitions ISO 4136, Destructive tests on welds in metallic materials Transverse tensile test ISO 5173, Destructive tests on welds in metallic materia
48、ls Bend tests ISO 6520-1, Welding and allied processes Classification of geometric imperfections in metallic materials Part 1: Fusion welding ISO 9017, Destructive tests on welds in metallic materials Fracture test ISO 10042, Welding Arc-welded joints in aluminium and its alloys Quality levels for imperfections ISO 13916, Welding Guidance on the measurement of preheating temperature, interpass temperature and preheat maintenance temperature ISO 14175, Welding consumables Gases and gas mixtures for fusion welding and allied processes ISO 15607:2003, Specification and qualification
