1、STD-AECMA PREN 42bO-ENGL 1776 10123Ll 0011357 51b Edition approved for publication AECMA STANDARD NORME AECMA AECMA NORM Comments should be sent within six months after the date of publication to C5 Chairman prEN 4260 Edition P 1 January 1996 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUST
2、RIES (AECMA) Gulledelle 94 - B-1200 BRUXELLES - Tel. (32) 2 775 81 10 - Fax. (32) 2 775 81 11 ICs : 49.040.1 O Descriptors : ENGLISH VERSION Aerospace series Metallic materials Rules for drafting and presentation of technical specifications Srie arospatiale Luft- und Raumfahrt Matriaux mtalliques Me
3、tallische Werkstoffe Rgles pour la rdaction et la prsentation des spcifications techniques Regeln fr die Abfassung und Gestaltung von Technischen Lieferbedingungen This “Aerospace Series” Prestandard has been drawn up under the responsibility of AECMA (The European Association of Aerospace Industrie
4、s). It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Technical Committee following comment by the Member countries. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an exten
5、t that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Sta
6、ndard to CEN (European Committee for Standardization) for formal vote. 1996-01 -31 AECMA Gulledelle 94 B-1200 BRUXELLES Mr Odorico I I I aecma 1996 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or netwo
7、rking permitted without license from IHS-,-,-STD-AECMA PREN 42b0-ENGL L77b LOLZ3LL 001L3b0 238 Page 2 prEN 4260 : 1996 Contents list O Introduction 1 Scope 2 Normative references 3 Framework and structure 4 Content Annex A (normative) Annex B (normative) Copyright Association Europeene des Construct
8、eurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 3 prEN 4260 : 1996 O Introduction This standard is part of the series of EN metallic materials standards for aerospace applications. The genera
9、l organisation of this series is described in EN 4258. 1 Scope This standard specifies the rules for the drafting and presentation of technical specifications for metallic materials. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publi
10、cations. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revisio
11、n. For undated references the latest edition of the publication referred to applies. EN 2000 EN 2078 EN 2600 EN 3042 EN 4258 EN 4259 EN 4268 EN 4500-1 TR 2410 TR 3040-2 Aerospace series - Quality assurance - EN aerospace products - Approval of the quality system of manufacturers Aerospace series - M
12、etallic materials - Manufacturing schedule - Inspection schedule - Inspection and test report - Description and rules for use Aerospace series - Designation of metallic semi-finished products - Rules 1) Aerospace series - Quality assurance - EN aerospace products - Qualification procedure Aerospace
13、series - Metallic materials - General organisation of standardisation - Links between types of EN standards and their use 1) Aerospace series - Metallic materials - Definition of general terms 2) Aerospace series - Metallic materials - Heat treatment facilities 2) Aerospace series - Metallic materia
14、ls - Rules for drafting and presentation of material standards - Part 1 : General rules 2) Aerospace series - Relationship between dimensional standards and metallic material standards 3) Aerospace series - Quality assurance - En aerospace products - Part 2 : List of qualified products 3) 1) Publish
15、ed as AECMA Prestandard at the date of publication of this standard 2) In preparation at the date of publication of this standard 3) Published as AECMA Technical Report at the date of publication of this standard Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by I
16、HS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 4 prEN 4260 : 1996 3 Framework and structure 3.1 General Where necessary the technical specification may be subdivided into several parts (e.g. EN xxxx-I, EN xxxx-2, etc, where part 1 i
17、s always the general part). In such cases all general requirements should be incorporated in Part 1 (general part) and the specific requirements in Part 2 onwards (specific parts). 3.2 Required elements The Technical Specification shall include the following elements in the given order: - Title ; -
18、Clause - O Introduction ; - Clause - 1 Scope : - Clause - 2 Normative references ; - Clause - 3 Definitions ; - Clause - 4 Requirements ; - Clause - 5 Qualification ; - Clause - 6 Release testing ; - Clause - 7 Preparation for delivery. 4 Content Standard sentences, placed in a frame, are listed bel
19、ow for the different clauses of the technical specifications and are mandatory. When necessary, further information is indicated in italics. 4.1 Title The title shall give sufficient information to unambiguously identify the subject of this standard. 4.1 .I General part Aerospace series Family of me
20、tallic materials (Steel, aluminium .) Type of product (wrought products, castings, filler metal for brazing .) Technical specification Part 1 : General requirements 4.1.2 Specific Part Aerospace series Family of metallic materials (Steel, aluminium .I Type of product (wrought products, castings, fil
21、ler metal for brazing .I Technical spec if cat ion Part X : Form(s) product (bar, tube for structure, forging stock .) Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without licen
22、se from IHS-,-,-Page 5 prEN 4260 : 1996 4.2 Clause O : Introduction O Introduction This standard is part of the series of EN metallic material standards for aerospace applications. The general organisation of this series is described in EN 4258. 4.3 Clause I : Scope In this clause the scope and appl
23、ication limits of the technical specification shall be stated. 4.3.1 General part 1 Scope This standard defines the general requirements for manufacture, inspection and testing of products in . (complete with metallic material family e.g. heat resisting alloys). Specific requirements applicable to e
24、ach type of product are defined in Part 2 onwards (if applicable). It shall be applied when referred to in the EN material standard unless otherwise specified on the drawing, order or inspection schedule. 4.3.2 Specific Part 1 Scope This standard defines the specific requirements for . . . . . . . .
25、 . . . . . . . (complete with type of products and metallic material family, e.g. bar in heat resisting alloys). It shall be applied in conjunction with EN XXXX-1 (insert EN number of the generalpart). 4.4 Clause 2 : Normative references 2 Normative references This European Standard incorporates by
26、dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standa
27、rd only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. (followed by the list of documents, give their titles, to which reference is made in the text). 4.5 Clause 3 : Definitions This clause shall only contain defini
28、tion(s) not included in EN 4259. 4.5.1 General part 3 Definitions For the purposes of this standard the following definitions apply : Definition of general terms see EN 4259 (add additional definitions, if necessary). Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided
29、 by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 6 prEN 4260 : 1996 4.5.2 Specific part I 3 Definitions For the purposes of this standard the following definitions apply : General definitions see EN XXXX-1 (add additional definit
30、ions, if necessary) I I 4.6 Clause 4 : Requirements This clause shall contain all the necessary technical requirements for the manufacture, inspection and testing of the products. This clause is subdivided into two sub-clauses : - clause 4.1 : General requirements ; - clause 4.2 : Technical requirem
31、ents. 4.6.1 General part 4 Requirements 4.1 General requirements 4.1.1 Manufacturing schedule The product shall be manufactured to fulfil the requirements of the relevant material standard and this technical specification. The manufacturer shall define the raw material, processes and inspection requ
32、irements in a manufacturing schedule in accordance with EN 2078. The manufacturer shall make this available to purchaser or mandated body upon request. Once approved any modifications to the manufacturing schedule shall be in accordance with EN 2078 and EN 3042. 4.1.2 Traceability Each semi-finished
33、 product shall be traceable to the cast production batch and/or heat treatment batch at all stages of manufacture and delivery. 4.1.3 Freedom from defects All products shall be free from defects not complying with the requirements of the material standard or order, or which may be prejudicial to the
34、 subsequent manufacture and/or use of the products. 4.1.4 Health and safety The product in the delivery condition shall fulfil the current health and safety laws of the area of the country where it is to be delivered. A product safety data sheet shall be available. 4.2 Technical requirements 4.2.1 G
35、eneral The product shall satisfy the requirements of the relevant material standard and/or the order. 4.2.1 .I Heat treatment Unless otherwise specified, heat treatment facilities and procedures shall conform to EN 4268. The product shall be supplied in the delivery condition specified in the materi
36、al standard and/or order. If a specific temperature (value and tolerance) is stated in the material standard or the order, that temperature shall be mandatory. If a temperature range is stated, a temperature within that range reduced by the tolerances of the furnace shall be selected. The charge sha
37、ll be maintained at the temperature selected subject to the furnace tolerances in table . for the period stated. Where no period is stated this shall be at the discretion of the manufacturer. Table . Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under lice
38、nse with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 7 prEN 4260 : 1996 4.2.1.2 Chemical composition The test samples used for analysis shall be representative of the product. The method of analysis shall be at the option of the manufacturer, but in c
39、ases of dispute, the reference method set out in the relevant EN or IS0 standard shall be used. If no EN or IS0 standard exists, a fundamental and agreed method of chemical analysis calibrated against accepted reference standards shall be used. 4.2.1.3 Preparation of samples Test samples shall not b
40、e worked after removal from the product they represent, except in cases where the product is intended for further working (forging stock), or when permitted by the material standard or the order. - samples and associated test pieces shall be marked in such a manner that their identity and orientatio
41、n with respect to the product and the batch is maintained - samples taken from finally heat treated products (condition of use) shall not be further treated - samples representing products in a condition other than the condition of use shall be heat treated in accordance with the material standard b
42、efore testing. 4.2.1.4 Dimensions Dimensions and tolerances shall conform to the requirements of the order or drawing. The frequency of examination adopted by the manufacturer shall be sufficient to enable him to certify compliance with the requirements. NOTE : TR 2410 gives the relationship between
43、 EN dimensional standards and EN material standards. 4.2.1.5 Semi-finished product designations When required, semi-finished product designations shall conform to the requirements of the order. NOTE : The semi-finished product designation system to be used may be defined by EN 2600, a national stand
44、ard, a company standard or a project standard. 4.6.2 Specific part 4 Requirements 4.1 General requirements See EN XXXX-1 (insert EN number of general part) 4.2 Technical requirements See EN XXXX- 1 (insert EN number of general part) 4.2.1 General The product shall satisfy the requirements of the rel
45、evant material standard. Unless otherwise specified in the material standard, the test method and test frequency are given in annex A for qualification testing and in annex B for release testing. Add an y relevant general technical requirements as necessary. 4.2.2 Specific Specify under this clause
46、all the requirements concerning location of test samples, test method, frequency, (e.g. tensile properties, fracture toughness, etc.). 1 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permi
47、tted without license from IHS-,-,-STD-AECMA PREN LiZbO-ENGL 1776 m L0123LL 00113bh 75h Page 8 prEN 4260 : 1996 4.7 Clause 5 : Quality assurance 4.7.1 Principle The product qualification procedure is dependent on the type of product. In general product qualification as described hereafter, according
48、to EN 3042, is controlled by the mandated body but does not apply to castings or forgings. For castings or forgings, product qualification will be in accordance with the requirements of the drawing and/or order, and will be controlled by a manufacturing and inspection schedule defining pre- producti
49、on and production procedures prepared and approved in accordance with EN 2078. 4.7.2 General part 5 Quality assurance 5.1 Approval of quality system See EN 2000. 5.2 Product qualification Product qualification shall be in accordance with EN 3042. 5.2.1 Principle The product tested for qualification shall be manufactured on the same equipment and in accordance with the same specification and process procedures as the serial products. Product qu
