1、BRITISH STANDARD AEROSPACE SERIES BS EN 2082-1:1991 Incorporating Amendment No. 1 Specification for Aluminium alloy forging stock and forgings Technical specification Part 1: General requirements This European Standard EN2082-1:1989 has the status of a British StandardBSEN2082-1:1991 This British St
2、andard was published under the authorityofthe Board of BSIandcomes intoeffecton 31December1990 BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference ACE/61 Draft for comment 88/75600 DC ISBN 0 580 19158 3 Cooperating organizations The European Committee fo
3、r Standardization, under whose supervision this European Standard was prepared, comprises the national standards organizations of the following Western European countries. Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standardiseringsraad Finland Su
4、omen Standardisoimisliito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland Ireland National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unifica
5、zione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland Associatio
6、n suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date of issue Comments 7707 October 1993 Indicated by a sideline in the marginBSEN2082-1:1991 BSI 11-1999 i Contents Page Cooperating organizations Inside front cover National foreword
7、 ii Brief history 2 Text of EN 2082-1 3 National appendix A Inside back cover National appendix B Inside back coverBSEN2082-1:1991 ii BSI 11-1999 National foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee and is the English language vers
8、ion of EN2082“Aerospace series. Aluminium alloy forging stock and forgings. Technical specification” Part1 “General requirements”, including amendment A1 published by the European Committee for Standardization (CEN). EN2082-1 was produced as a result of international discussion in which the UK took
9、an active part. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This doc
10、ument comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front
11、 cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2082-1 November1989 +A1 October1993 UDC: 669.715-4:621.73.04:629.7 Key words: Aircraft industry, forgings, die forgings, aluminium alloys, manufacturing, specifications English version Aerospace series Aluminiumalloyforgingstockandforgings
12、Technicalspecification Part1:General requirements (includes amendment A1:1993) Srie arospatiale Produitsdestinslaforge,pices forges etpices matrices en alliages daluminium Spcification technique Partie1:Exigencesgnrales (inclutlamendement A1:1993) Luff-und Raumfahrt SchmiedevormaterialundSchmiedestc
13、ke aus Aluminiumlegierungen TechnischeLieferbedingungen Teil1:Allgemeine Anforderungen (enthltnderungen A1:1993) This European Standard was accepted by CEN on1988-11-03. CEN members are bound to comply with the requirements of CEN Internal Regulations which stipulate the conditions for giving this E
14、uropean Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Central Secretariat or to any CEN member. This European Standard exists in three official versions (
15、English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to CEN Central Secretariat has the same status as the official versions. CEN members are the national standards organizations of Austria, Belgium,
16、 Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart
17、 36, B-1050 Brussels CEN 1989 Copyright reserved to all CEN members Ref. No. EN 2082-1:1989 + A1:1993 EEN2082-1:1989 BSI 11-1999 2 Brief history This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordanc
18、e with the rules of this Association, this Standard has successively received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. According to the Common CEN/CENELEC Rules, the following countries are bound to implem
19、ent this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. Foreword to Amendment A1 This Amendment has been prepared by the European Association of Aerospac
20、e Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this Amendment has successively received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. This Amend
21、ment was submitted for Formal Vote, and the result was positive. This Amendment shall be given the status of a national Amendment, either by publication of an identical text or by endorsement, at the latest by January1994, and conflicting national standards shall be withdrawn at the latest by Januar
22、y1994. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this Amendment: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom. Conten
23、ts Page Brief history 2 1 Scope 3 2 Field of application 3 3 References 3 4 Definitions 3 5 Quality assurance 4 6 Manufacture 4 7 Traceability 4 8 Freedom from defects 4 9 Testing 4 10 Marking 5 11 Acceptance 5 12 Inspection and testing report 5 13 Packing 5 14 Wording of orders 5EN2082-1:1989 BSI 1
24、1-1999 3 1 Scope This standard defines the general requirements for manufacture, inspection and testing of aluminium alloy forging stock and forgings. Particular requirements applicable to forging stock, pre-production forgings and production forgings are defined in EN2082-2 and EN2082-3 respectivel
25、y. The three standards EN2082-1, EN2082-2 and EN2082-3 define the inspection level and the sampling frequencies to be applied unless otherwise specified on the drawing, order or inspection schedule. 2 Field of application Unless otherwise specified on the drawing, order or inspection schedule this s
26、tandard shall be applied when referenced in the relevant EN material standards. It is applicable to: Forging stock (EN 2082-2), Hand forgings including forged blocks and rings, die forgings and rolled rings (EN2082-3), hereafter described as “forgings”. By agreement between the purchaser and the man
27、ufacturer, it may also be applied to other materials or delivery conditions not covered by ENstandards. The agreements shall be formalized by reference to this standard on the drawing, order or inspection schedule. 3 References EN 2000, Aerospace series Quality assurance EN aerospace products Approv
28、al of the quality system of manufacturers. EN 2078, Definitions of manufacturing schedule, inspection schedule and inspection report General definitions Aerospace series. EN 2082-2, Aerospace series Aluminium alloy forging stock and forgings Technical specification Part 2: Forging stock. EN 2082-3,
29、Aerospace series Aluminium alloy forging stock and forgings Technical specification Part 3: Pre-production and production forgings. 4 Definitions 4.1 manufacturer company producing the forging stock or the forgings in the form and condition in which it is supplied to the purchaser 4.2 purchaser comp
30、any which orders and purchases the forgings or the forging stock 4.3 Cast 4.3.1 metal taken from the same melt in a furnace or crucible or from several melts mixed in the same furnace or crucible before pouring 4.3.2 where a continuous melting process is used, a cast may be defined as metal taken fr
31、om the furnace before the next following charge 4.4 batch a batch consists of forging stock or forgings: of the same form and nominal dimensions or having the same drawing number and from the same cast and in the same heat treatment condition and from the same heat treatment charge for an air furnac
32、e or from the same heat treatment run for a salt bath furnace. The heat treatment charge and run for a salt bath furnace shall be defined in the manufacturing schedule. 4.5 pre-production forgings forgings produced to a particular design which qualify the method of manufacture and equipment configur
33、ation and which demonstrate that the requirements of the purchaser can be met 4.6 inspection schedule see EN 2078 4.7 manufacturing schedule see EN 2078 4.8 inspection and testing report see EN 2078 4.9 “capability clause” reference to capability signifies that sufficient evidence of a statistical n
34、ature with respect to the properties under consideration can be submitted to show that the requirements of the relevant standard will be met on the basis of a reduced amount of testingEN2082-1:1989 4 BSI 11-1999 such action in no way reduces the obligations of the manufacturer to fulfil all requirem
35、ents. If subsequent testing indicates that a product does not comply with the requirements the batch shall be rejected 5 Quality assurance See EN 2000. 6 Manufacture 6.1 Forgings shall be made from forging stock complying with the relevant EN material standard and EN2082-2. 6.2 Unless otherwise spec
36、ified, the method of manufacture to be employed shall be at the discretion of the manufacturer. 6.3 Conformance with the requirements of the purchaser shall be demonstrated by the manufacture and inspection and testing of pre-production forgings as required by EN2082-3. 6.4 The products shall be sup
37、plied in the heat treatment condition specified in the material standard. If otherwise agreed, or if there are more than one heat treatment condition in the material standard, the condition of supply shall be specified on the order or on the drawing. If a specific heat treatment temperature (value a
38、nd tolerance) is stated, that temperature shall be mandatory. If a heat treatment temperature range is stated, a temperature within that range reduced by the furnace tolerances shall be selected. Unless otherwise specified, the charge shall be maintained at the temperature subject to the tolerance o
39、f 5 C, for the period stated. 7 Traceability Each product shall be identifiable to its cast and batch at all stages of manufacture and delivery. 8 Freedom from defects The products shall be free from harmful defects and notwithstanding previous acceptance of products complying with this standard; an
40、y product that is found, at a later stage, to contain such defects may be rejected. 9 Testing The tests required by the material standard, the order, the inspection schedule or the drawing shall be made in accordance with the requirements of the appropriate test standard. If a test standard does not
41、 exist, the method shall be agreed between the manufacturer and the purchaser. The frequency of testing shall be as specified in EN2082-2 or EN2082-3, unless otherwise specified on the drawing, order, or inspection schedule. 9.1 Chemical composition 9.1.1 The chemical composition of the delivered pr
42、oduct shall comply with the requirements of the relevant material standard. 9.1.2 The chemical composition of each cast shall be determined. The samples taken for analysis purposes shall be representative of the cast. The method of analysis shall be selected by the manufacturer, but in case of dispu
43、te, the method set out in the relevant ISOstandard shall be used. If no ISO standard exists a fundamental method of chemical analysis shall be used. 9.2 Preparation of test samples and test pieces 9.2.1 Test samples for the tests required by the material standard shall be obtained by one or more of
44、the following methods as agreed between the manufacturer and the purchaser and indicated on the drawing or the inspection schedule: a) test samples cut from forgings, b) test samples forged integrally with the forgings, c) test samples forged separately from the same batch of forging stock as the fo
45、rgings they represent. 9.2.2 The test samples and test pieces shall be marked in such a manner that their identity and orientation with respect to the product and the batch is maintained. 9.2.3 Test samples removed from finished forgings shall not be further worked. The preparation of test samples f
46、or the release of forging stock shall be carried out in accordance with EN2082-2. 9.2.4 Should the test samples be taken as described in clause9.2.1 a), the purchaser shall specify the number of forgings to be cut up and shall define in the drawing or inspection schedule the location from which the
47、test samples are to be taken. 9.2.5 Dimensions of test samples and test pieces representing forgings are to be agreed between manufacturer and purchaser and shall be stated on the drawing, order or inspection schedule. 9.3 Heat treatment of test samples 9.3.1 Test samples representing forgings to be
48、 supplied in any heat treated condition shall be heat treated with the batch of forgings they represent. Unless otherwise agreed between manufacturer and purchaser samples shall not be cut from forgings before heat treatment.EN2082-1:1989 BSI 11-1999 5 9.3.2 Test samples cut from forgings, in the fi
49、nally heat treated condition shall not be further heat treated. 9.3.3 For forgings supplied in other than the finally heat treated condition the test samples required for proving the characteristics of this condition shall be re-heat treated in accordance with the requirements of the materials standard. 9.4 Re-tests If any inspection or test fails to meet the requirements, re-tests shall be carried out as follows: 9.4.1 Tensile tests If the test procedure or the test piece preparation is faulty, testing shall be
