1、September 2016 English price group 12No 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 03.100.30; 25.160.01!%Z%“25502
2、88www.din.deDIN ISO 11745Brazing for aerospace applications Qualification test for brazers and brazing operators Brazing of metallic components (ISO 11745:2010 + Amd.1:2015),English translation of DIN ISO 11745:2016-09Lten im Luft- und Raumfahrzeugbau Prfung von Hartltern und Bedienern von Hartltanl
3、agen Hartlten von metallischen Bauteilen (ISO 11745:2010 + Amd.1:2015),Englische bersetzung von DIN ISO 11745:2016-09Brasage fort pour applications arospatiales preuve de qualification des braseurs et des oprateurs braseurs Brasage fort des composants mtalliques (ISO 11745:2010 + Amd.1:2015),Traduct
4、ion anglaise de DIN ISO 11745:2016-09SupersedesDIN ISO 11745:2011-01www.beuth.deDocument comprises 24 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.09.16 DIN ISO 11745:2016-09 2 A comma is used as the decimal marker. Contents
5、 Page National foreword . 4 National Annex NA (informative) Bibliography . 5 Introduction 6 1 Scope 7 2 Normative references 7 3 Terms and definitions . 7 4 Requirements for the brazing coordinator . 8 5 Conditions required for brazer and brazing operator qualification tests . 9 6 Qualification test
6、 requirements . 9 6.1 Brazing processes . 9 6.2 Material 10 6.3 Material thickness . 10 6.4 Brazing position 10 6.5 Filler material 10 7 Special qualification tests . 11 7.1 General requirements 11 7.2 Special qualification tests for brazers 11 7.3 Special qualification tests for brazing operators .
7、 11 8 Designation for qualification test . 12 9 Performing the brazer and brazing operator qualification test . 12 9.1 General . 12 9.2 Theory test 12 9.3 Practical testing 12 9.3.1 General . 12 9.3.2 Brazer . 13 9.3.3 Brazing operator 13 9.3.4 Test pieces 13 10 Examination and testing 15 10.1 Gener
8、al . 15 10.2 Visual and dimensional examination . 15 10.3 Peel test . 15 10.4 Radiographic examination . 16 10.5 Metallographic examination 16 11 Acceptance criteria 16 11.1 General . 16 11.2 Brazer qualification test 16 11.3 Brazing operator qualification test . 16 DIN ISO 11745:2016-09 3 12 Qualif
9、ication test certificate . 16 13 Period of validity of the qualification 17 14 Requalification test 17 Annex A Brazer qualification test record according to this International Standard . 18 Annex B Brazing operator qualification test record according to this International Standard . 19 Annex C Braze
10、r qualification test certificate . 20 Annex D Brazing operator qualification test certificate . 21 Annex E Guidelines for the theory test . 23 A.1 General . 23 A.2 Subjects to be reviewed 23 Bibliography . 24 (informative)(informative)(informative)(informative)(informative)DIN ISO 11745:2016-09 4 Na
11、tional foreword This document (ISO 11745:2010 + Amd.1:2015) has been prepared by ISO/TC 44/SC 14 “Welding and brazing in aerospace” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Schweien und verwandte Verfahren (DIN Standards Committee f
12、or Welding and allied processes), Working Group NA 092-00-17 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
13、patent rights. This standard includes Amendment 1 approved by ISO on 15 April 2015. 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 brazers and brazing operators in the aerospace sector is carried ou
14、t according to standard procedures, using standard test pieces, and under standard conditions. If a brazer or brazing 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 according to th
15、e current state of the art. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 2553 DIN EN ISO 2553 ISO 4063 DIN EN ISO 4063 ISO 13585 DIN EN ISO 13585 ISO 18279:2003 DIN EN ISO 18279:2004-04 ISO 24394:2008 DIN ISO 24394:2009-04 ISO/TR 259
16、01:2007 DIN Fachbericht ISO/TR 25901:2008-11 Amendments This standard differs from DIN ISO 11745:2011-01 as follows: a) ISO 11745, Amendment 1:2015 has been incorporated in the text of DIN ISO 11745:2011-01 (indicated in the text by tags !“) (see Clause 5). Previous editions DIN 65228: 1986-09, 2005
17、-12 DIN ISO 11745: 2011-01 DIN ISO 11745:2016-09 5 National Annex NA (informative) Bibliography DIN EN ISO 2553, Welding and allied processes Symbolic representation on drawings Welded joints DIN EN ISO 4063, Welding and allied processes Nomenclature of processes and reference numbers DIN EN ISO 135
18、85, Brazing Qualification test of brazers and brazing operators DIN EN ISO 18279:2004-04, Brazing Imperfections in brazed joints (ISO 18279:2003) DIN ISO 24394:2009-04, Welding for aerospace applications Qualification test for welders and welding operators Fusion welding of metallic components (ISO
19、24394:2008) DIN Fachbericht ISO/TR 25901:2008-11, Welding and related processes Vocabulary DVS 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 sp
20、ace construction) DVS 2715-2, Anforderungen an Prfungsbeauftragte fr Betriebe des Luft- und Raumfahrzeugbaus (Requirements for examining personnel for aviation and space construction companies) DVS-IIW 1170, Schweiaufsichtspersonen Mindestanforderungen an die Ausbildung, Prfung und Qualifizierung (W
21、elding coordinators Minimum training, examination and qualification requirements) DIN ISO 11745:2016-09 6 Brazing for aerospace applications Qualification test for brazers and brazing operators Brazing of metallic components Introduction The application of this International Standard ensures that a
22、qualification test can be carried out in accordance with a standard test specification on standard test pieces under standard conditions. A brazer or brazing operator qualification test properly passed in accordance with this International Standard ensures that the brazer or brazing operator concern
23、ed has proved possession of at least the minimum degree of manual skills and technical knowledge demanded by the state of the art. DIN ISO 11745:2016-09 7 1 Scope This International Standard specifies a qualification test for brazers engaged in manual brazing of parts and brazing operators in aerosp
24、ace construction. NOTE 1 Success in the test is an essential precondition for the qualification of brazers (3.1) and brazing operators (3.2) in new production and repair work in aerospace. However, brazing equipment operators (3.3) need not be qualified according to this International Standard. NOTE
25、 2 This International Standard does not apply to general brazing applications covered by ISO 13585 3. 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 la
26、test edition of the referenced document (including any amendments) applies. ISO 18279:2003, Brazing Imperfections in brazed joints ANSI/AWS B2.2, Brazing procedure and performance qualificationN1)EN 4179:2009, Aerospace series Qualification and approval of personnel for non-destructive testing EN 12
27、799, Brazing Non-destructive examination of brazed joints EN 13134, Brazing Procedure approval 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 brazer person who performs the brazing in a manual operation and guides the heating means and ensur
28、es the introduction of the brazing filler material and verifies the braze joint configuration specified by the design 3.2 brazing operator person who prepares the joint and sets up brazing equipment and thereby has direct influence on the brazed joint quality NOTE Examples of brazing equipment are f
29、urnaces, salt baths, and induction equipment. N1) National footnote: This standard was published by and is obtainable from: American National Standards Institute (ANSI), 11 West 42nd Street, New York, NY 10036. DIN ISO 11745:2016-09 8 3.3 brazing equipment operator person who only operates automatic
30、 brazing equipment and has no direct influence on the brazed joint quality NOTE Examples of automatic brazing equipment are furnaces, salt baths and induction equipment that require no brazing operator intervention of the thermal process. 3.4 examiner person appointed to verify compliance with the a
31、pplicable standard ISO/TR 25901:2007 5, 2.119 NOTE In certain cases, an external independent examiner is required. The acceptability of the examiner is at the discretion of the design or engineering authority. 3.5 examining body organization appointed to verify compliance with the applicable standar
32、d ISO/TR 25901:2007 5, 2.120 NOTE In certain cases, an external independent examining body is required. The acceptability of the examining body is at the discretion of the design or engineering authority. 3.6 design/engineering authority organization that has the responsibility for the structural in
33、tegrity or maintenance of airworthiness of the hardware and compliance with all relevant documents ISO 24394:2008 4, 3.7 3.7 braze assembly assembly of parts to be brazed with regard to fit-up procedures NOTE Fit-up procedures can include precleaning and application of brazing filler material, stop-
34、off material or flux. 3.8 brazing coordinator person responsible and competent to perform brazing coordination NOTE Different brazing coordinators can be required for different tasks. 4 Requirements for the brazing coordinator The brazing coordinator shall be designated, in writing, as responsible f
35、or the brazer or brazing operator qualification test. The brazing coordinator shall have knowledge and experience relevant to the brazing process, and be acceptable to the responsible design authority or recognized examining body. NOTE Example of relevant knowledge is International Welding Engineer
36、(IWE) according to IIW IAB-002-2000/EWF-409 6. DIN ISO 11745:2016-09 9 The brazing coordinator may authorize another person to administer the brazer or brazing operator qualification test. 5 Conditions required for brazer and brazing operator qualification tests !deleted“ !The candidate shall provid
37、e documented evidence of visual acuity meeting the following requirements: a) near-vision acuity shall permit reading of Times New Roman N5 maximum size or equivalent font types (Times New Roman of five points vertical height where one point = 1/72 in or 0,35 mm) at not less than 30 cm with one or b
38、oth eyes, corrected or uncorrected. This test shall be conducted with a minimum of six single spaced random capital characters; b) for torch brazing and titanium brazing, a colour perception test shall be passed (e.g. according to the Ishihara test); c) vision shall be tested to these requirements a
39、t least every two years. As an alternative to a), the candidate shall provide evidence of satisfactory near vision by a method determined by an oculist, optometrist, or other professionally recognized person.“ 6 Qualification test requirements 6.1 Brazing processes This International Standard covers
40、 qualification testing for the following brazing processes with their reference numbers according to ISO 4063 2: 911 infrared brazing; 912 flame brazing, torch brazing; 916 induction brazing; 918 resistance brazing; 919 diffusion brazing; 921 furnace brazing; 922 vacuum brazing; 923 dip-bath brazing
41、; 924 salt-bath brazing. NOTE Other brazing processes not yet specified in ISO 4063 2 may be covered. DIN ISO 11745:2016-09 10 6.2 Material The brazer or brazing operator qualification tests are performed according to the material groups specified below. A brazer or brazing operator qualification te
42、st is only valid for the material group applied in the qualification test. It does not include any other material group. Material group A: Unalloyed steels, low-alloyed steels, high-alloyed ferritic steels. Material group B: High-alloyed austenitic and martensitic steels, nickel and nickel alloys, c
43、obalt alloys. Material group C: Titanium and titanium alloys. Material group D: Aluminium and aluminium alloys, magnesium and magnesium alloys. Material group E: Materials that do not conform to material groups A to D (e.g. molybdenum, tungsten, copper alloys). Qualification of material group B also
44、 qualifies material group A. 6.3 Material thickness For the brazer qualification test only, a test brazement with parent material of nominal thicknesses t1and t2shall qualify brazements within a thickness range from 0,9t1to 1,1t2, with t1 t2. 6.4 Brazing position For the brazer qualification test on
45、ly, the test pieces (see 9.3.4) shall be brazed in the following brazing positions: a) test pieces TP1 and TP3: flat flow (horizontal flow of braze filler material); b) test piece TP2: vertical tube1)axis (vertical upflow of braze filler material). These brazing positions and flow directions qualify
46、 for any brazing position and any flow direction. 6.5 Filler material For manual brazing, the range of qualification for brazing filler material application and liquidus temperatures are given in Tables 1 and 2. Table 1 Range of qualification for brazing filler material application Test piece brazin
47、g filler material application Range of qualification manually or mechanically fed manually or mechanically fed and preplaced preplaced preplaced 1)The word “tube”, alone or in combination, is used to mean “pipe”, “tube” or “hollow section”. DIN ISO 11745:2016-09 11 Table 2 Range of qualification for
48、 brazing filler material liquidus temperatures Test piece brazing filler material liquidus temperature Range of qualification 850 C 850 C 850 C All 7 Special qualification tests 7.1 General requirements Any changes to the requirements defined in this International Standard are classified as special
49、qualification tests. As required by actual production, the brazing coordinator specifies test pieces with defined brazing processes and material thickness. A special qualification test only qualifies for brazing under the specific conditions represented by the qualification test. If test methods are not in accordance with this International Standard, they shall be defined by the brazing coordinato
