1、March 2012 Translation by DIN-Sprachendienst.English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS
2、25.160.01; 25.160.10!$zav“1876283www.din.deDDIN EN ISO 25239-3Friction stir welding Aluminium Part 3: Qualification of welding operators (ISO 25239-3:2011)English translation of DIN EN ISO 25239-3:2012-03Rhrreibschweien Aluminium Teil 3: Qualifizierung der Bediener (ISO 25239-3:2011)Englische berset
3、zung von DIN EN ISO 25239-3:2012-03Soudage par friction-malaxage Aluminium Partie 3: Qualification des oprateurs soudeurs (ISO 25239-3:2011)Traduction anglaise de DIN EN ISO 25239-3:2012-03www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authorit
4、ative.2003.12 DIN EN ISO 25239-3:2012-03 2 A comma is used as the decimal marker. National foreword This standard has been prepared by the Internationaler Verband fr Schweitechnik (IIW) (International Institute of Welding). The responsible German body involved in its preparation was the Normenaussch
5、uss Schweien und verwandte Verfahren (NAS) (Welding and allied processes Standards Committee), DIN/DVS Joint Committee NA 092-00-27 AA Rhrreibschweien (DVS AG V 11.2). Requests for official interpretations of any aspect of this International Standard should be addressed to the ISO Central Secretaria
6、t, which will pass them on to the IIW Secretariat for an official response. DIN EN 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
7、 qualification of welding procedures Part 5: Quality and inspection requirements The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 5173 DIN EN ISO 5173 ISO 14732 DIN EN 1418 ISO 15614-2 DIN EN ISO 15614-2 ISO 17636 (all parts) E DIN EN IS
8、O 17636 (all parts) ISO 17640 DIN EN ISO 17640 ISO 25239-1 DIN EN ISO 25239-1 ISO 25239-4:2011 DIN EN ISO 25239-4:2012-03 ISO 25239-5:2011 DIN EN ISO 25239-5:2012-03 DIN EN ISO 25239-3:2012-03 3 National Annex NA (informative) Bibliography DIN EN 1418, Welding personnel Approval testing of welding o
9、perators for fusion welding and resistance weld setters for fully mechanized and automatic welding of metallic materials DIN EN ISO 5173, Destructive tests on welds in metallic materials Bend tests DIN EN ISO 15614-2, Specification and qualification of welding procedures for metallic materials Weldi
10、ng procedure test Part 2: Arc welding of aluminium and its alloys E DIN EN ISO 17636-1, Non-destructive testing of welds Radiographic testing Part 1: X- and gamma ray techniques with film E DIN EN ISO 17636-2, Non-destructive testing of welds Radiographic testing Part 2: X- and gamma ray techniques
11、with digital detectors DIN EN ISO 17640, Non-destructive testing of welds Ultrasonic testing of welded joints DIN EN ISO 25239-1, Friction stir welding Aluminium Part 1: Vocabulary DIN EN ISO 25239-4, Friction stir welding Aluminium Part 4: Specification and qualification of welding procedures DIN E
12、N ISO 25239-5, Friction stir welding Aluminium Part 5: Quality and inspection requirements DIN EN ISO 25239-3:2012-03 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 25239-3 December 2011 ICS 25.160.01; 25.160.10 English Version Friction stir welding - Alu
13、minium - Part 3: Qualification of welding operators (ISO 25239-3:2011) Soudage par friction-malaxage - Aluminium - Partie 3: Qualification des oprateurs soudeurs (ISO 25239-3:2011)Rhrreibschweien - Aluminium - Teil 3: Qualifizierung der Bediener (ISO 25239-3:2011) This European Standard was approved
14、 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 standa
15、rds 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 not
16、ified 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, Lithuan
17、ia, Luxembourg, Malta, Netherlands, 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
18、 All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 25239-3:2011: EContents DIN EN ISO 25239-3:2012-03 EN ISO 25239-3:2011 (E) Page Foreword 3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Requirement
19、s .5 4.1 Welding operator qualification .5 4.2 Essential variables and ranges of qualification .6 4.3 Qualification methods .7 4.4 Test welds .8 4.5 Test record .9 5 Certificate .9 5.1 General 9 5.2 Period of validity 10 Annex A (normative) Functional knowledge of the welding unit .11 Annex B (infor
20、mative) Knowledge of welding technology 12 Annex C (informative) Qualification test certificate for FSW operators 14 Bibliography 16 2 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 “Weldin
21、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
22、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
23、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
24、ovakia, 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. DIN EN ISO 25239-3:2012-03 EN ISO 25239-3:2011 (E) 3 Introduction Welding processes are widely used in the
25、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 st
26、ir 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 o
27、peration. 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. T
28、he 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 t
29、he 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
30、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 l
31、evel 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 pro
32、cess 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 tha
33、t 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
34、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 implemen
35、ted to ensure that the specified quality is achieved. DIN EN ISO 25239-3:2012-03 EN ISO 25239-3:2011 (E) 4 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
36、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
37、 latest edition of the referenced document (including any amendments) applies. ISO 17636 (all parts), Non-destructive testing of welds Radiographic testing1)ISO 17640, Non-destructive testing of welds Ultrasonic testing Techniques, testing levels, and assessment ISO 25239-1, Friction stir welding Al
38、uminium 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 term
39、s 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)DIN EN ISO 25239-3:2012-03 EN ISO 2
40、5239-3:2011 (E) 5 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 operators knowledge of the welding unit to be used for the qualification test shall be tested. See Annex A. Any
41、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
42、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 operators qualification certificate is shown in Annex C.
43、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 q
44、ualification, 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 succe
45、ssful welding operator qualification test made with any type of FSW method qualifies an operator only for that welding method. This subclause applies to FSW methods that include, but are not limited to, robotic, single spindle, multiple spindle, bobbin tool, retractable probe, or any other FSW metho
46、d defined in the WPS used for that qualification test. 4.2.3 Welding equipment The following changes require a new qualification: a change from welding with a joint sensor to welding without, although welding without a joint sensor also qualifies an operator to weld with a joint sensor; a change fro
47、m one type of welding machine to another type of welding machine that requires additional training to operate a test made with any type of machine qualifies only that type of machine, although the addition or removal of jigs and fixtures, feeding units and other ancillary equipment does not change t
48、he type of machine; addition, removal or change of control system. 4.2.4 Parent materials A successful test weld made in any aluminium alloy qualifies an operator for all aluminium alloys. A successful test weld of any parent material thickness qualifies an operator for all parent material thicknesses. DIN EN ISO 25239-3:2012-03 EN ISO 25239-3:2011 (E) 6 A successful test weld of any parent material form (including, but not limited to, sheet, tube, castings, for
