BS EN 4632-001-2008 Aerospace series - Welded and brazed assemblies for aerospace constructions - Weldability and brazeability of materials - General requirements《航空航天系列 航空航天结构用焊接及.pdf

1、BS EN4632-001:2008ICS 49.025.01NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAerospace series Welded andbrazed assembliesfor aerospaceconstructions Weldability andbrazeability ofmaterialsPart 001: General requirementsLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA

2、 STANDARDS, 15/10/2009 02:26, Uncontrolled Copy, (c) BSIThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 July2009. BSI 2009ISBN 978 0 580 60591 8Amendments/corrigenda issued since publicationDate CommentsBS EN 4632-001:2008National forewordThis

3、 British Standard is the UK implementation of EN 4632-001:2008.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/61, Metallic materials for aerospace purposes.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publicati

4、on does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/10/2009 02:26, Uncontrolled Copy, (c)

5、BSIBS EN 4632-001:2008EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 4632-001April 2008ICS 49.025.01English VersionAerospace series - Welded and brazed assemblies foraerospace constructions - Weldability and brazeability ofmaterials - Part 001: General requirementsSrie arospatiale - Assemblages s

6、ouds et brass pourconstructions arospatiales - Soudabilit et brasabilit desmatriaux - Partie 001 : GnralitsLuft- und Raumfahrt - Schwei- und Ltverbindungen frdie Luft- und Raumfahrt -Schweibarkeitsgrad undLtbarkeitsgrad von Werkstoffen - Teil 001: AllgemeinesThis European Standard was approved by CE

7、N on 7 March 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may

8、be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN M

9、anagement Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, No

10、rway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form a

11、nd by any means reservedworldwide for CEN national Members.Ref. No. EN 4632-001:2008: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/10/2009 02:26, Uncontrolled Copy, (c) BSIBS EN 4632-001:2008EN 4632-001:2008 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 4 2 Normative references

12、 4 3 Terms and definitions .4 4 Symbols, codes and abbreviations7 5 Responsibilities .10 6 How to use this standard 10 7 Method of determining the degree of weldability and brazeability 10 Annex A (normative) Recommendations for brazing and diffusion assemblies11 Annex B (normative) Model sheet .16

13、Annex C (normative) Model sheet .17 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/10/2009 02:26, Uncontrolled Copy, (c) BSIBS EN 4632-001:2008EN 4632-001:2008 (E) 3 Foreword This document (EN 4632-001:2008) has been prepared by the Aerospace and Defence Industries Association of Europe -

14、 Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard

15、 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2008, and conflicting national standards shall be withdrawn at the latest by October 2008. Attention is drawn to the possibility that some of the elements of this

16、 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 following countries are bound to implement this European Stand

17、ard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

18、Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/10/2009 02:26, Uncontrolled Copy, (c) BSIBS EN 4632-001:2008EN 4632-001:2008 (E) 4 Introduction This standard is the Part 001 of a series of standards about welded and brazed assemblies for aerospace constructions. 1 Scope This standard defin

19、es weldability and brazeability degrees for metallic materials used in aerospace construction, for processes and techniques involving welding and brazing but excluding soldering. It also defines rules to be observed to determine the degree of weldability and brazeability. It is applicable without an

20、y restriction for the manufacturing of new parts and repair parts. 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 latest edition of the referenced docu

21、ment (including any amendments) applies. EN ISO 4063, Welding and allied processes Nomenclature of processes and reference numbers (ISO 4063:1998) EN 515, Aluminium and aluminium alloys Wrought products Temper designations EN 573-3, Aluminium and aluminium alloys Chemical composition and form of wro

22、ught products Part 3: Chemical composition and form of products EN 10052, Vocabulary of heat treatment terms for ferrous products 3 Terms and definitions For the purposes of this document, the terms and definitions given in Publications on Welding and Welding Applications and issued by the Internati

23、onal Council of the French Language and the following apply. 3.1 Weldability 3.1.1 concept of weldability it is considered that a metallic material is weldable to a given degree, by a given process and for a given application type, when it can be used to produce a weld provided that precautions corr

24、esponding to this degree are taken, and if the characteristics and consequences of the presence of the weld satisfy the required properties chosen as the basis for a judgement Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/10/2009 02:26, Uncontrolled Copy, (c) BSIBS EN 4632-001:2008EN 463

25、2-001:2008 (E) 5 3.1.2 weldability degrees weldability of materials is evaluated according to the following four degrees: degree 1: material with very good weldability for which no special precautions are necessary. To be used in preference. degree 2: material with good weldability but which may req

26、uire special precautions when welding (for example preheating, low advance speed, etc.). degree 3: material with poor weldability requiring development for each part type and which may involve manufacturing uncertainties. Not to be recommended. degree 4: material with very bad weldability. To be avo

27、ided. 3.2 Brazeability 3.2.1 concept of brazeability it is considered that a metallic material is brazeable to a given degree, by a given process and for a given application type, when it can be used to produce brazing or a brazed-diffused joint, provided that precautions corresponding to this degre

28、e are taken, and if the characteristics and consequences of the presence of the brazing satisfy the required properties chosen as the basis for a judgement 3.2.2 brazeability degrees brazeability of materials is evaluated according to the following four degrees: degree 1: material with very good bra

29、zeability for which no special precautions are necessary. To be used in preference. degree 2: material with good brazeability but which may require special precautions when brazing (for example electrolytic nickel flash before brazing, etc.). degree 3: material with poor brazeability requiring devel

30、opment for each part type and which may involve manufacturing uncertainties. Not to be recommended. degree 4: material with very bad brazeability. To be avoided. 3.3 Processes 3.3.1 welding and brazing the purpose of a welding operation is to make the material to be assembled continuous. In the case

31、 of a metallic material, continuity has to be achieved for the structure, but this does not necessarily imply homogeneity of the chemical composition (case of “heterogeneous“ welds or brazing). The result of the operation is called a weld when two previously distinct parts are assembled together. If

32、 the operation is restricted to the addition of extra material to a part, it is called filling. A weld may be made without any external filler material (case of resistance welding, etc.), or with filler material. For metallic materials, a filler metal with a grade similar to that of the base metal (

33、homogeneous weld) or different to the base metal (heterogeneous weld) may be used. In the case of a filler metal, the weld may be made in a single pass (one single pass of the heat source and the filler metal) or in several passes. Two major process categories can be distinguished: 1) welding or fil

34、ling processes, with fusion of the edges of parts to be joined due to the thermal effect, 2) assembly, brazing or diffusion welding processes, for which the production temperature is less than the solidus temperature of parts to be joined; in this case, intermetallic diffusion phenomena are preponde

35、rant: diffusion welding when the operation takes place in the solid phase; brazing, when a liquid phase is obtained using a filler metal or is created in situ by metallurgical reaction. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/10/2009 02:26, Uncontrolled Copy, (c) BSIBS EN 4632-001:

36、2008EN 4632-001:2008 (E) 6 3.4 Technical terms 3.4.1 light alloy aluminium or magnesium based alloy 3.4.2 structural state state of the crystalline metal structure resulting from an appropriate treatment 3.4.3 fabrication execution of welding operations on new parts or parts being repaired 3.4.4 bas

37、e material/metal material or metal from which elementary parts are made 3.4.5 elementary part single element that will be assembled with other elements to form a part 3.4.6 part - product assembly composed of several assembled elementary parts 3.4.7 annealing at ambient temperature heat treatment, s

38、ometimes called maturation on light alloy 3.4.8 super alloy nickel or cobalt based alloy resistant to high temperatures 3.4.9 super-refractory metal or alloy based on W, Ta and Mo 3.4.10 heat treatment treatment that will confer the required structural state and properties on the base material (see

39、Clause 4, Symbols, codes and abbreviations) 3.5 General terms 3.5.1 manufacturer person who makes or fabricates and assembles elements or sub-assemblies to make assemblies from them 3.5.2 supplier person or holder of a contract or an order that he has accepted, and who makes a commitment to the cust

40、omer to execute the services defined in the contract or the order 3.5.3 operator person who carries out welding operations using a mechanized or automated process Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/10/2009 02:26, Uncontrolled Copy, (c) BSIBS EN 4632-001:2008EN 4632-001:2008 (E

41、) 7 3.5.4 production set of parts delivered within a given time period 3.5.5 recuperation act that consists of making a new part that was considered to be outside acceptable criteria initially or during its normal manufacturing and inspection cycle, acceptable. Recuperation may include a very wide v

42、ariety of operations such as acceptance in waiver, reworking of the part, etc. 3.5.6 repairer supplier in the repair activity domain 3.5.7 repair making a part that has been degraded during operation conform 3.5.8 series identical parts that are started in a same manufacturing campaign 3.5.9 compete

43、nt services specialized service within a company with specific tasks, for example: design office, quality service, laboratory, methods office. 3.5.10 official monitoring services approved government authorities or organizations responsible for checking the conformity of materials with the definition

44、 file 4 Symbols, codes and abbreviations 4.1 Process classification The classification given below shows the coding according to standard EN ISO 4063 and the abbreviations for each process. The code is used in preference on drawings. See Tables 1 and 2. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA ST

45、ANDARDS, 15/10/2009 02:26, Uncontrolled Copy, (c) BSIBS EN 4632-001:2008EN 4632-001:2008 (E) 8 Table 1 Welding or filling processes with melting Code Abbreviation with simple melting gas (torch) 3 oxyacetylene 311 OA other gasses electric arc coated electrodes 111 SMA TIG 141 TIG MIG 131 MIG MAG 135

46、 MAG with plasma: high current 15 PAW micro plasma MPAW by electron beam 51 EBW under primary vacuum 511 EBWVP under secondary vacuum 511 EBWVS by laser beam 52 LW solid laser 521 SLW gas laser 522 GLWwith melting and pressure by electric resistance 2 spot welding 21 RSW roller welding 22 RSEW spark

47、 welding 24 RFW with rotating arc 185 MAW Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/10/2009 02:26, Uncontrolled Copy, (c) BSIBS EN 4632-001:2008EN 4632-001:2008 (E) 9 Table 2 Assembly or filling processes with intermetallic diffusion Code Abbreviation welding in solid phase by fricti

48、on 42 controlled CDFW inertial IFW by “friction stir“ (friction with a rotating tool) by diffusion by explosion 45 441 FSW DW EW under vacuum a9131 a VFB a in furnace at atmospheric pressure a9132aATFBa in air furnace a9133 AFBa by induction 916 IB under vacuum a9161aVIB a in furnace at atmospheric

49、pressure 9162 aATIB a gas (torch) 912 FLB resistance 918 RB salt bath 915 SB welding-brazing 97 electric arc 972 ABW electron beam EBBW laser LBW gas (torch) 971 GBW diffusion brazing (in furnace) 919 DB aNot coded EN ISO 4063. 4.2 Abbreviations H : solution treatment and quenching (See EN 10052) T : tempering, structural hardening, aging Ha : homogenization annealing No : normalization An : annealing Sz : sub-zero treatment