1、December 2013 Translation by DIN-Sprachendienst.English price group 16No 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).I
2、CS 25.160.01!%*q-“2077810www.din.deDDIN ISO 24394Welding for aerospace applications Qualification test for welders and welding operators Fusion welding of metallic components (ISO 24394:2008 + Amd. 1:2013),English translation of DIN ISO 24394:2013-12Schweien im Luft- und Raumfahrzeugbau Prfung von S
3、chweiern und Bedienern von Schweieinrichtungen Schmelzschweien von metallischen Bauteilen (ISO 24394:2008 + Amd. 1:2013),Englische bersetzung von DIN ISO 24394:2013-12Soudage pour applications arospatiales preuve de qualification pour soudeurs et oprateurs Soudage par fusion des composants mtallique
4、s (ISO 24394:2008 + Amd. 1:2013),Traduction anglaise de DIN ISO 24394:2013-12SupersedesDIN ISO 24394:2009-04www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.3812.13 A comma is used as the decimal marker. Contents Page National forew
5、ord .3 National Annex NA (informative) Bibliography 4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .7 4 Qualification test requirements 8 4.1 General 8 4.2 Welding processes 9 4.3 Welding positions 9 4.4 Product types/semi-finished products applicable to welder qualific
6、ation tests .9 4.5 Material groups 10 4.6 Butt weld material thickness 11 4.7 Fillet weld material thickness .11 4.8 Special qualification tests .11 4.9 Designation for qualification test .12 5 Conditions required for welder and welding operator qualification tests .13 5.1 Physical requirements for
7、welder and welding operator 13 5.2 Person responsible for welder and welding operator qualification tests 13 6 Performing the welder and welding operator qualification test .13 6.1 Practical qualification test 13 6.2 Theory test 14 7 Test pieces .14 8 Examination and testing .18 8.1 General 18 8.2 V
8、isual and dimensional examination .19 8.3 Surface imperfection detection 19 8.4 Radiographic examination 19 8.5 Metallographic examinations .19 8.6 Bend test .19 8.7 Fracture surface examination .19 9 Acceptance criteria 19 10 Qualification test certificate and documentation .20 11 Period of validit
9、y of the qualification .20 12 Requalification test 21 Annex A (normative) Test piece acceptance criteria .22 Annex B (normative) Welder/welding operator qualification test record according to ISO 24394 .27 Annex C (informative) Welder qualification test certificate 28 Annex D (informative) Welding o
10、perator qualification test certificate .29 Annex E (informative) Guidelines for the theory test 31 Annex F (informative) How to use Table 1 35 Bibliography 38 DIN ISO 24394:2013-12 2 DIN ISO 24394:2013-12 3 National foreword This document (ISO 24394:2008 + Amd.1:2013) has been prepared by Technical
11、Committee ISO/TC 44 “Welding and allied processes”, Working Group WG 4 “Welding and brazing in aerospace”. The responsible German body involved in its preparation was the Normenausschuss Schweien und verwandte Verfahren (Welding and Allied Processes Standards Committee), Working Committee NA 092-00-
12、17 AA Schweien im Luft- und Raumfahrzeugbau (DVS AG A 9). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN shall not be held responsible for identifying any or all such patent rights. This standard includes Amendment A1 publish
13、ed by ISO on 15 November 2012 (Corrected version 2013-05). The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. This standard ensures that the qualification of welders and welding operators in the aerospace sector is carried out according to standard p
14、rocedures, using standard test pieces, and under standard conditions. If a welder or welding operator passes the test described in this standard, this shows that he/she possesses the minimum technical proficiency and knowledge required to perform his/her work. Use of Annexes B, C and D Users of this
15、 standard are granted the right to duplicate, in its entirety, the forms given in Annexes B, C and D, without prejudicing the rights of DIN. Qualification test certificates Currently valid welding operator certificates awarded in accordance with DIN EN 1418 maintain their validity even after publica
16、tion of the present standard DIN ISO 24394. For all new tests and requalification tests only DIN ISO 24394 is to be used. Testing job knowledge Initial tests of a welders or welding operators job knowledge shall primarily deal with the subjects relating to the welding process and welding materials a
17、s described in Annex E. The International Standards referred to in this document have been published as the corresponding DIN ISO or DIN EN ISO Standards with the same number, except for those below, which correspond as follows: ISO 5173 DIN EN 910 ISO 23277 DIN EN 1289 ISO 23278 DIN EN 1291 Amendme
18、nts This standard differs from DIN ISO 24394:2009-04 as follows: a) ISO 24394 Amendment 1:2013 has been incorporated (indicated in the text by tags !“); b) the specifications regarding the person responsible for welder and welding operator qualification tests have been deleted from the National fore
19、word in accordance with DVS 2721 (in force since October 2013). Previous editions LN 29591: 1969-06, 1975-10 DIN 29591: 1980-12, 1986-10, 1996-11, 2004-10 DIN 29591 Supplement 1: 1996-11 DIN 29591 Corrigendum 1: 2005-09 DIN ISO 24394: 2009-04 National Annex NA (informative) Bibliography DIN EN 910,
20、Destructive test on welds in metallic materials Bend tests DIN EN 1289, Non-destructive testing of welds Penetrant testing of welds Acceptance levels DIN EN 1291, Non-destructive testing of welds Magnetic particle testing of welds Acceptance levels DIN EN 1418, Welding personnel Approval testing of
21、welding operators for fusion welding and resistance weld setters for fully mechanized and automatic welding of metallic materials DIN EN 1435, Non-destructive testing of welds Radiographic testing of welded joints DIN EN 22553, Welded, brazed and soldered joints Symbolic representation on drawings D
22、VS 2715-1, Aufsichtspersonen/Fachverantwortliche fr das Schweien, Lten, thermische Spritzen im Luft- und Raumfahrzeugbau (Coordinating personnel for welding, soldering and thermal spraying for aviation and space construction) DVS 2721, Anforderungen an Prfer zur Abnahme von Schweier-, Lter- und Bedi
23、enerprfungen, sowie Prfungen im thermischen Spritzen im Luft- und Raumfahrzeugbau DIN ISO 24394:2013-12 4 Introduction A welder or welding operator qualification test properly passed in accordance with this International Standard demonstrates that the welder or welding operator concerned has been pr
24、oved to possess the minimum degree of skill and knowledge required for the fusion welding of aerospace hardware. DIN ISO 24394:2013-12 Welding for aerospace applications Qualification test for welders and welding operators Fusion welding of metallic components 5 1 Scope This International Standard s
25、pecifies requirements for the qualification of welders and welding operators for the fusion welding of metallic materials for aerospace applications. 2 Normative references DIN ISO 24394:2013-12 The following referenced documents are indispensable for the application of this document. For dated refe
26、rences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4063, Welding and allied processes Nomenclature of processes and reference numbers !Deleted text“ ISO 5173, Destructive tests on welds in metallic mat
27、erials Bend tests ISO 6520-1:2007, Welding and allied processes Classification of geometric imperfections in metallic materials Part 1: Fusion welding ISO 6947, Welds Working positions Definitions of angles of slope and rotation !Deleted text“ ISO 8596, Ophthalmic optics Visual acuity testing Standa
28、rd optotype and its presentation ISO 9606-2, Qualification test of welders Fusion welding Part 2: Aluminium and aluminium alloys ISO 14731, Welding coordination Tasks and responsibilities ISO 17636, Non-destructive testing of welds Radiographic testing of fusion-welded joints ISO 23277, Non-destruct
29、ive testing of welds Penetrant testing of welds Acceptance levels ISO 23278, Non-destructive testing of welds Magnetic particle testing of welds Acceptance levels ASTM E 1742, Standard practice for radiographic examination EN 462-1, Non-destructive testing Image quality of radiographs Part 1: Image
30、quality indicators (wire type) Determination of image quality value EN 462-2, Non-destructive testing Image quality of radiographs Part 2: Image quality indicators (step/hole type) Determination of image quality value EN 462-3, Non-destructive testing Image quality of radiographs Part 3: Image quali
31、ty classes for ferrous metals 6 EN 462-4, Non-destructive testing Image quality of radiographs Part 4: Experimental evaluation of image quality values and image quality tables EN 4179, Aerospace series Qualification and approval of personnel for non-destructive testing 3 Terms and definitions For th
32、e purposes of this document, the terms and definitions given in ISO 6520-1, ISO 9606-2, ISO 14731 and the following apply. 3.1 parent material form type of the semi-finished product NOTE Semi-finished products are sheets/plates, tubes and castings. 3.2 welder person who holds and manipulates the ele
33、ctrode holder, welding torch or blowpipe by hand ISO/TR 25901:2007 2 NOTE In this International Standard a blowpipe is considered to be a gas welding torch. 3.3 welding operator welding for aerospace applications person who operates adaptive control, automatic, mechanized, or robotic welding equipme
34、nt 3.4 examiner person who has been appointed to verify compliance with the applicable standard NOTE In certain cases, an external independent examiner can be required. ISO/TR 25901:2007 2 3.5 examining body organization appointed to verify compliance with the applicable standard NOTE In certain cas
35、es, an external independent examining body can be required. ISO/TR 25901:2007 2 3.6 rework any corrective action made to a weldment in the as-welded condition 3.7 design/engineering authority organization that has the responsibility for the structural integrity or maintenance of airworthiness of the
36、 hardware and compliance with all relevant documents 3.8 backing material placed at the reverse side of a joint preparation for the purpose of supporting molten weld metal ISO/TR 25901:2007 2 DIN ISO 24394:2013-12 7 3.9 welding procedure specification WPS document that has been qualified and provide
37、s the required variables of the welding procedure to ensure repeatability during production welding ISO/TR 25901:2007 2 3.10 preliminary welding procedure specification pWPS document containing the required variables of the welding procedure which has to be qualified ISO/TR 25901:2007 2 4 Qualificat
38、ion test requirements 4.1 General 4.1.1 Specific to the welder qualification test The welder qualification tests are classified according to: a) parent material form; b) types of welds (butt/fillet); c) welding processes; d) material groups; e) thickness ranges; f) welding positions. DIN ISO 24394:2
39、013-12 !The welding coordinator of the plant or the fabricator shall select from Table 2 the test piece as required for the production work on which the welder is to be employed. Two complementary specific test pieces (TP5 and TP6) may also be chosen as defined in 4.4 and 4.8.1.“ 4.1.2 Specific to t
40、he welding operator qualification test The welding operator qualification tests are classified according to: a) welding processes; b) material groups; c) thickness ranges. In the practical part of the welding operator qualification test, a test weld of any product type/semi-finished product of any w
41、eld type shall qualify for all product types/semi-finished products and all weld types. 4.1.3 !Deleted text“ 8 4.2 Welding processes This International Standard covers qualification testing for the following welding processes with their reference numbers in accordance with ISO 4063:1998: 111 Manual
42、metal arc welding (metal arc welding with covered electrode) 12 Submerged arc welding 13 Gas-shielded metal arc welding 141 Tungsten inert gas welding (TIG welding) 15 Plasma arc welding 31 Oxy-fuel gas welding 51 Electron beam welding 52 Laser beam welding NOTE Other fusion welding processes not ye
43、t specified in ISO 4063 may be covered. 4.3 Welding positions Depending on welding positions in actual production, the welding position of the test piece shall be chosen in accordance with Table 1. 4.4 Product types/semi-finished products applicable to welder qualification tests Depending on the typ
44、es of products in actual production, a distinction is made between welder qualification tests for sheet/plate (S), tube (T), and castings (C). A welder qualification test for sheet/plate (S) and tube (T) may be combined, see Table 1. The range of qualification for each welding position is given in T
45、able 1. The welding positions are specified in ISO 6947. The test pieces shall be welded in accordance with the nominal angles of the welding positions in accordance with ISO 6947. Test piece TP5 (see Table 2) is mandatory for structural tube frameworks of outside diameter, D 26 mm Tube D 26 mm Butt
46、 weld Fillet weld Butt weld Fillet weld PA PC PE PF PA PB PC PD PF PA PC PF PB PD PF TP1 PA x xa PC x x xa PE x x x PF x x TP2 PA x PB x x PC x x x PD x x x PF x x x TP3 PA xbc PC x x xc PF x x x xc xc TP4 PB (x) (x) xc PD (x) (x) (x) xcxc PF (x) (x) (x) xc xcx indicates those welding positions for
47、which the welder is qualified. (x) indicates those welding positions for which the welder is qualified for welding on tube D 26 mm, but not on plate. indicates those welding positions for which the welder is not qualified. NOTE 1 Plate or sheet qualification in the PA position also qualifies for welding tubing with D 26 mm in the PA position. NOTE 2 Test pieces on tube do not qualify for s
