1、February 2007 Translation by DIN-Sprachendienst.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).I
2、CS 25.160.01; 95.020!$Xep“1536677www.din.deDDIN 2303Welding and allied processes Quality requirements to be met by production and maintenancecompanies for military productsEnglish translation of DIN 2303:2007-02Schweien und verwandte Prozesse Qualittsanforderungen an Herstell- und Instandsetzungsbet
3、riebe fr wehrtechnischeProdukteEnglische bersetzung von DIN 2303:2007-02Soudage et techniques connexes Exigences de qualit aux entreprises de fabrication et de rparation pour les produits detechnique militaireTraduction anglaise de DIN 2303:2007-02www.beuth.deDocument comprises pagesIn case of doubt
4、, the German-language original shall be considered authoritative.2503.10 DIN 2303:2007-02 A comma is used as the decimal marker. Contents Page Foreword.3 Introduction 3 1 Scope .4 2 Normative references .4 3 Terms and definitions 6 4 Symbols and abbreviations .7 5 Requirements for companies 7 5.1 Ba
5、sic requirements.7 5.1.1 Manufacturer qualification.7 5.1.2 Personnel requirements.8 5.1.3 Company facilities 10 5.1.4 Production documents.10 5.1.5 Quality requirements and component classification10 5.1.6 Sub-contracting 11 5.1.7 Conversion 11 5.2 Requirements for different types of military produ
6、ct .11 5.2.1 Military products with general requirements.11 5.2.2 Additional specific requirements12 Annex A (normative) Procedure for obtaining a manufacturer qualification for welding, brazing and thermal spraying of military products.16 A.1 Proof-of-qualification process.16 A.1.1 Application 16 A
7、.1.2 Audit.16 A.1.3 Technical discussion with the welding/brazing supervisor and thermal spraying specialist17 A.1.4 Final discussion17 A.2 Issuing of the manufacturer qualifications 17 A.2.1 General.17 A.2.2 Period of validity.17 A.2.3 Monitoring compliance with requirements 17 A.2.4 Prolongation o
8、f or modifications to manufacturer qualifications .17 A.2.5 Revocation of manufacturer qualifications18 Annex B (normative) Application for a manufacturer qualification for welding, brazing and thermal spraying of military products according to DIN 2303 .19 Tables Table 1 Manufacturer qualification
9、classes8 Table 2 Welding coordinator qualification .9 Table 3 Component classes.11 Table 4 Principles of component classification according to Q 2 .13 Table 5 Principles of component classification according to Q 4 .15 2 DIN 2303:2007-02 Foreword This standard has been developed by Working Committee
10、 NA 092-00-18 AA Schweien und verwandte Prozesse in der Wehrtechnik (DVS AG A 9.6) of the Normenausschuss Schweitechnik (NAS) (Welding Standards Committee). Valid certificates issued in accordance with DVS 2718 maintain their validity even after publication of DIN 2303. Any prolongations or new cert
11、ificates shall be in accordance with the present standard. Introduction Military products must meet high quality standards in production and maintenance because of the static and dynamic loads to which they are subjected, their range of operation, the increased safety requirements placed on such pro
12、ducts, and the substantial need for reliability. As defined by this standard, welding, brazing and thermal spraying are considered to be special processes. The quality requirements of the products cannot sufficiently be proved later on. The DIN EN ISO 3834 series is to be applied to the above-mentio
13、ned processes by analogy. 3 DIN 2303:2007-02 1 Scope This standard specifies minimum requirements for quality assurance systems and describes a method of qualifying manufacturers of military products. The standard applies to military agencies as well as civilian companies that carry out welding, bra
14、zing and thermal spraying on military products. It does not apply to commercially available products that can be used in both civilian and military applications without significant modifications being made. Additional requirements apply to NATO contracts, e.g. as specified in AQAP 2110. 2 Normative
15、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 latest edition of the referenced document (including any amendments) applies. DIN 29591, Welding in aerospace Qualif
16、ication testing of welders Welding of metallic components DIN 29595, Welding in aerospace Fusion welded metallic components Requirements DIN 29878, Aerospace series Resistance welded metal parts Technical specifications DIN 65118-1, Aerospace Welded metallic component parts Indications on drawings D
17、IN 65118-2, Aerospace Welded metallic components Directives for design DIN 65169, Aerospace Brazed and high-temperature brazed components Directions for design DIN 65170, Aerospace series Brazed and high-temperature brazed metallic components Technical specifications DIN 65228, Aerospace Qualificati
18、on test of brazers Brazing of metallic components DIN EN 287-1, Qualification test of welders Fusion welding Part 1: Steels DIN EN 473, Non-destructive testing Qualification and certification of NDT personnel General principles DIN EN 1418, Welding personnel Approval testing of welding operators for
19、 fusion welding and resistance weld setters for fully mechanized and automatic welding of metallic materials DIN EN 4179, Aerospace series Qualification and approval of personnel for non-destructive testing DIN EN 13133, Brazing Brazer approval DIN EN 13214, Thermal spraying Thermal spray coordinati
20、on Tasks and responsibilities DIN EN ISO 3834 series, Quality requirements for fusion welding of metallic materials DIN EN ISO 5817, Welding Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) Quality levels for imperfections DIN EN ISO 9606 series, Qualification
21、 test of welders Fusion welding 4 DIN 2303:2007-02 DIN EN ISO 10042, Welding Arc-welded joints in aluminium and its alloys Quality levels for imperfections DIN EN ISO 14731, Welding coordination Tasks and responsibilities DIN EN ISO 14918, Thermal spraying Approval testing of thermal sprayers DIN EN
22、 ISO 14922 series, Thermal spraying Quality requirements of thermally sprayed structures DIN EN ISO 15607, Specification and qualification of welding procedures for metallic materials General rules DIN EN ISO 15620, Welding Friction welding of metallic materials DIN EN ISO/IEC 17024, Conformity asse
23、ssment General requirements for bodies operating certification of persons DVS 1157, DVS training course DVS Welding Foreman DVS 2715-1, Coordinators/experts for welding, brazing, thermal spraying in aeronautical construction DVS 2715-2, Requirements for examiners in aeronautical construction DVS 290
24、3, Electrodes for resistance welding DVS 3201, Fundamental principles for the designing of components for electron beam welding in fine and high vacuums DVS-EWF 1188, DVS-EWF training course Thermal Spraying Specialist DVS-IIW/EWF 1171, International Welding Specialist (IWST) General information, me
25、ans of qualification, overview of topics DVS-IIW/EWF 1172, International Welding Technologist (IWT) General information, means of qualification, overview of topics DVS-IIW/EWF 1173, International Welding Engineer (IWE) General information, means of qualification, overview of topics EWF 409, Internat
26、ional Welding Engineer EWF 410, International Welding Technologist EWF 411, International Welding Specialist EWF 459, European Thermal Spraying Specialist TL 2350-0003, Armoured housings Design, manufacture and testing TL 2350-0008, Aluminium armoured housings Design, manufacture and testing VG 9510
27、5-1, Semi-finished material of the alloy AIZn 4,5 Mg 1 Sheets Qualification of manufacturers VG 95105-2, Semi-finished material of the alloy AIZn 4,5 Mg 1 Extruded products Qualification of manufacturers AQAP 2110, NATO quality assurance requirements for design, development and production 5 DIN 2303
28、:2007-02 BV Heft 1050, Bauvorschriften fr Schiffe der Bundeswehr, Erzeugnisse aus metallischen Werkstoffen, Schweizustze und Schweihilfsstoffe, Qualifikation (Building regulations for military vessels, metallic products, welding consumables and welding auxiliary materials, qualification) 3 Terms and
29、 definitions For the purposes of this standard, the following terms and definitions apply. 3.1 military product product, including all sub-assemblies and components, which is used in the military sector during the development, contracting and/or deployment phases 3.2 military product with general re
30、quirements product, including all sub-assemblies and components, made of standard steel, copper and aluminium materials which are suitable for welding without requiring any special measures NOTE Special measures include controlled heat input, for example. 3.3 military product with special requiremen
31、ts product, including all sub-assemblies and components, made of high-strength, quenched and tempered steel or nonmagnetizable steel and titanium materials, as well as AlZnMg alloys 3.4 military product with armouring function product, including all sub-assemblies and components, which serves as arm
32、our against the effects of projectiles and mines 3.5 airworthy military product product, including all sub-assemblies and components, made of airworthy metallic materials which are suitable for welding 3.6 company production, maintenance or supply company which carries out work on metallic military
33、products 3.7 component class classification of military products on the basis of load type, safety relevance and/or operational readiness 3.8 approved body organization or institution which has been approved by the German Bundeswehr Research Institute for Materials, Explosives, Fuels and Lubricants
34、(WIWEB) for issuing manufacturer qualifications 3.9 civilian (coordinating) office the body designated by WIWEB as being responsible for coordinating work and which maintains a list of companies which are qualified manufacturers NOTE The SLV Berlin-Brandenburg, part of GSI mbH, is the designated civ
35、ilian coordinating office. 6 DIN 2303:2007-02 4 Symbols and abbreviations BK Bauteilklasse (component class) BWB Bundesamt fr Wehrtechnik und Beschaffung (German Federal Office of Defence Technology and Procurement) ETSS European thermal spraying specialist EWE European welding engineer EWS European
36、 welding specialist EWT European welding technologist FTS Fachverantwortlicher fr das Thermische Spritzen (Thermal spraying specialist) LAP Ltaufsichtsperson (brazing coordinator) LBA Luftfahrtbundesamt (German Federal Office of Civil Aviation) Q Manufacturer qualification class SAP Schweiaufsichtsp
37、erson (welding coordinator) SFI Schweifachingenieur (welding engineer) ST Schweitechniker (welding technologist) SFM Schweifachmann (welding specialist) SWM Schweiwerkmeister (welding foreman) WIWEB Wehrwissenschaftliches Institut fr Werk-, Explosiv- und Betriebsstoffe (German Bundeswehr Research In
38、stitute for Materials, Explosives, Fuels and Lubricants) 5 Requirements for companies 5.1 Basic requirements 5.1.1 Manufacturer qualification Companies shall provide proof that they have obtained a manufacturer qualification as in Annex A. The correlation between the manufacturer qualification, DIN
39、EN ISO 3834 and this standard is described in Table 1. Proof of manufacturers qualification does not absolve the company from its duty of care nor from the technical responsibility for the work it carries out. The manufacturer qualification is awarded by an approved body. The qualification is classe
40、d according to military product type, as shown in Table 1. Class Q 2or Q 3 qualifications include the qualification for Class Q 1. The WIWEB has a directory of approved bodies. 7 DIN 2303:2007-02 Table 1 Manufacturer qualification classes Manufacturer qualification class Q 1 Q 2 Q 3 Q 4 Basic requir
41、ements as in 5.1 Requirements depending on military product type General requirements Special requirements Armouring function Airworthiness Additional requirements as in subclause 5.2.1 5.2.2.1 5.2.2.2 5.2.2.3 Includes Class Q 1 Class Q 1 Additional, more specific requirements as in VG 95105 BV 1050
42、 TL 2350-0003 TL 2350-0008 Aerospace standardsseries DIN 29. series DIN 65. DIN EN ISO 3834 Quality requirements for fusion welding of metallic materials Quality requirements to be met DIN EN ISO 3834-3 Standard quality requirements DIN EN ISO 3834-2 Comprehensive quality requirements 5.1.2 Personne
43、l requirements There shall be a welding/brazing coordinator or thermal spraying specialist who is qualified for the relevant component class, and arrangements shall be made for a deputy in agreement with the approved body. Qualification requirements are given in Table 2. 8 DIN 2303:2007-02 Table 2 W
44、elding coordinator qualification Com- ponent class QualificationaProfessional requirements Area of responsibility BK 1 Comprehensive technical knowledge as in DIN EN ISO 14731, e.g. EWE as in EWF Guideline 409 SFI as in DVS-IIW/EWF 1173 or comparable qualification Engineering degree (Dipl.-Ing.) obt
45、ained from a technical university (Technische Hochschule, Fachhochschule or Technische Universitt), plus additional training at an approved training establishment Responsible welding/brazing coordinator or thermal spraying specialist and fully authorized deputy for all component classes BK 2 Specifi
46、c technical knowledge as in DIN EN ISO 14731, e.g. EWT or EWS as in EWF Guideline 410 or 411 ST as in DVS-IIW/EWF 1172 SFM as in DVS-IIW/EWF 1171 ETSS as in EWF Guideline 459 Thermal spraying specialist as in DVS-EWF 1188 (ETSS) or comparable qualification Apprenticeship as a technician or master we
47、lder or SWM (welding foreman), plus additional training at an approved training establishment Responsible welding/brazing coordinator or thermal spraying specialist: for component class BK 2 deputy for component class BK 2 deputy with restricted authorization for component class BK 1 on the basis of
48、 recognized process specifications BK 3 Basic technical knowledge as in DIN EN ISO 14731, e.g. DVS welding foreman as in DVS 1157 Training at an approved training establishment Responsible welding/brazing coordinator or thermal spraying specialist: for component class BK 3 deputy for component class BK 3 deputy with restricted authorization for component class BK 2 on the basis of recognized process speci
