1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 25239-5:2011Friction stir welding AluminiumPart 5: Quality and inspection requirements(ISO 25239-5:2011)BS EN ISO 25239-5:2011 BRITISH STANDARDNational forewordThis Bri
2、tish Standard is the UK implementation of EN ISO25239-5:2011.The UK participation in its preparation was entrusted 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 incl
3、ude all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012ISBN 978 0 580 60296 2ICS 25.160.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the auth
4、ority of theStandards Policy and Strategy Committee on 31 January 2012.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 25239-5 December 2011 ICS 25.160.10 English Version Friction stir welding - Aluminium - Part 5: Quality and inspection
5、requirements (ISO 25239-5:2011) Soudage par friction-malaxage - Aluminium - Partie 5: Exigences de qualit et de contrle (ISO 25239-5:2011) Rhrreibschweien - Aluminium - Teil 5: Qualitts- und Prfungsanforderungen (ISO 25239-5:2011) This European Standard was approved by CEN on 4 June 2011. CEN member
6、s 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
7、 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 Managemen
8、t 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
9、, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland 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
10、 form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 25239-5:2011: EBS EN ISO 25239-5:2011EN ISO 25239-5:2011 (E) 3 Foreword This document (EN ISO 25239-5:2011) has been prepared by the International Institute of Welding in collaboration with Technical Committee CEN/TC
11、 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.
12、 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 organizatio
13、ns 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,
14、 Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 25239-5:2011 has been approved by CEN as a EN ISO 25239-5:2011 without any modification. BS EN ISO 25239-5:2011ISO 25239-5:2011(E) ISO 2011 All rights reserved iiiContents Page Forewor
15、d iv Introduction . v 1 Scope 1 2 Normative references 1 3 Terms and definitions . 2 4 Quality requirements . 2 4.1 General . 2 4.2 Welding personnel 2 4.3 Inspection and testing personnel 2 4.4 Equipment 2 4.5 Welding procedure specification . 3 4.6 Friction stir welding tool . 4 4.7 Preweld joint
16、preparation and fit-up 4 4.8 Preheating and interpass temperature control 4 4.9 Tack welds . 4 4.10 Welding . 4 4.11 Postweld heat treatment . 4 4.12 Inspection and testing 4 4.13 Identification and traceability . 6 Annex A (normative) Imperfections, testing and examination, acceptance levels, and I
17、SO 6520-1 reference number 7 Bibliography 9 BS EN ISO 25239-5:2011ISO 25239-5:2011(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 International Stand
18、ards 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 ta
19、ke 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 i
20、s 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 possibili
21、ty 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 25239-5 was prepared by the International Institute of Welding, which has been approved as an international standardizing body in th
22、e 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:
23、 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. BS EN ISO 25239-5:2011ISO 25239-5:2011(E) ISO 2011 All rights r
24、eserved vIntroduction 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 stru
25、ctures. 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
26、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 pr
27、ocessing 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 friction stir weld joints in aluminium. Part 3 specifies requirements for the qualificatio
28、n 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
29、. 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-d
30、estructive 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 specifie
31、s 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 shou
32、ld 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
33、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
34、 appropriate quality and inspection procedures. Supervision should be implemented to ensure that the specified quality is achieved. BS EN ISO 25239-5:2011BS EN ISO 25239-5:2011INTERNATIONAL STANDARD ISO 25239-5:2011(E) ISO 2011 All rights reserved 1Friction stir welding Aluminium Part 5: Quality and
35、 inspection requirements 1 Scope This part of ISO 25239 specifies a method for determining the capability of a manufacturer to use the friction stir welding (FSW) process for the production of products of the specified quality. It specifies quality requirements, but does not assign those requirement
36、s to any specific product group. 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.
37、For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3452-1, Non-destructive testing Penetrant testing Part 1: General principles ISO 4136, Destructive tests on welds in metallic materials
38、Transverse tensile test ISO 5173, Destructive tests on welds in metallic materials Bend tests ISO 9015-1, Destructive tests on welds in metallic materials Hardness testing Part 1: Hardness test on arc welded joints ISO 9015-2, Destructive tests on welds in metallic materials Hardness testing Part 2:
39、 Microhardness testing of welded joints ISO 9017, Destructive tests on welds in metallic materials Fracture test ISO 9712, Non-destructive testing Qualification and certification of NDT personnel General principles ISO 17636 (all parts), Non-destructive testing of welds Radiographic testing1)ISO 176
40、37, Non-destructive testing of welds Visual testing of fusion-welded joints ISO 17640, Non-destructive testing of welds Ultrasonic testing Techniques, testing levels, and assessment ISO 20807, Non-destructive testing Qualification of personnel for limited application of non-destructive testing ISO 2
41、5239-1, Friction stir welding Aluminium Part 1: Vocabulary 1) To be published. (Revision of ISO 17636:2003) BS EN ISO 25239-5:2011ISO 25239-5:2011(E) 2 ISO 2011 All rights reservedISO 25239-3, Friction stir welding Aluminium Part 3: Qualification of welding operators ISO 25239-4:2011, Friction stir
42、welding Aluminium Part 4: Specification and qualification of welding procedures 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 25239-1 apply. 4 Quality requirements 4.1 General These requirements relate only to those aspects of product quality that
43、may be influenced by FSW. 4.2 Welding personnel 4.2.1 General Manufacturers shall have at their disposal sufficient competent personnel for the planning, performance and supervision of FSW production operations in accordance with specified requirements. 4.2.2 Welding operator Welding operators shall
44、 be qualified in accordance with ISO 25239-3. Qualification records shall be kept up to date. 4.3 Inspection and testing personnel 4.3.1 General Manufacturers shall have sufficient competent personnel for the planning, performance, and supervision of inspection and testing operations during the prod
45、uction of friction stir welded parts in accordance with specified requirements. 4.3.2 Personnel performing non-destructive testing and visual testing Non-destructive and visual testing personnel shall be qualified in accordance with ISO 9712 or ISO 20807. When the use of an examination method not cu
46、rrently incorporated in ISO 9712 or ISO 20807 is specified, the manufacturer shall be responsible for developing the training programme, written practice, examination, and practical demonstrations equivalent to the requirements of ISO 9712 or ISO 20807. These shall establish the capability of the pe
47、rsonnel performing the required examination. 4.3.3 Destructive testing personnel Personnel performing destructive testing shall be trained for those test methods. 4.4 Equipment 4.4.1 Suitability of equipment The equipment shall be adequate for the application concerned. BS EN ISO 25239-5:2011ISO 252
48、39-5:2011(E) ISO 2011 All rights reserved 3Welding equipment (e.g. welding machines and FSW tools) shall be capable of producing welds that meet the acceptance levels specified in Annex A. Welding equipment shall be maintained in good condition and shall be repaired or adjusted when a welding operat
49、or, inspector or welding coordinator is concerned about the capability of the equipment to operate satisfactorily. 4.4.2 New equipment After installation of new or refurbished equipment, appropriate tests shall be performed. Such tests shall verify the equipment functions correctly. 4.4.3 Reproducibility tests for qualified machine welding settings Reproducibility tests shall be performed to demonstrate that the welding equipment can repeatedly produce welds that meet the acceptance levels in
