1、AECMA STANDARD NORME AECMA AECMA NORM prEN 2002-21 Edition P 2 January 2000 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - 8-1 200 BRUXELLES - Tel. (+32) 2 775 81 1 O - Fax. (+32) 2 775 81 1 I ICs: Supercedes issue P 1 January 1987 Descriptors: ENGLISH VERSION
2、Aerospace series Metallic materials Test methods Part 21 : Radiographic testing of castings Srie arospatiale Matriaux mtalliques Mthodes dessais Partie 21: Examen radiographique des pices moules Luft- und Raumfahrt Metallische Werkstoffe Prfverahren Teil 21 : Rntgenographische Prfung von Gustcken Th
3、is “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA (The European Association of Aerospace Industries). 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 com
4、ment by the Member countries. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that inferchangeability is affected, physically or functionally, without re-identification of the standard. After examination and signature of the AECMA Standard C
5、hecking Centre (NPS) and formal agreement of the Oficial Services of the Member countries it will be submitted as a draft European Standard to CEN (European Cornmittee for Standardization) for formal vote. Nota - Extra copies can be supplied by B.N.A.E. - Technopolis 54 - 199. rue Jean-Jacques Rouss
6、eau - 92138 ISSY-LES-MOULINEAUX CEDEX I I Edition approved for publication I Comments should be sent within six months after the date of Dublication to 2000-01-31 AECMA Gulledelle 94 6-1200 BRUXELLES C5 Chairman Mr Evetts 0 aecma20C Copyright Association Europeene des Constructeurs de Materiel Aeros
7、patial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-AECMA PREN 2002-21-ENGL 2000 1012311 0037470 501 Page 2 prEN 2002-21 : 2000 Contents Introduction . Scope . Normative references . Health and safety . Principle . Tes
8、ting requirements . Inspection report . Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-AECMA PREN 2002-21-ENGL 2000 10L23L1 0017471 448 M Page 3 p
9、rEN 2002-21: 2000 O Introduction This standard is part of the series of EN metallic material standards for aerospace applications. The general organization of this series is described in EN 4258. 1 Scope This standard specifies the requirements for the radiographic inspection of castings for aerospa
10、ce applications. It shall be applied when referred to in the EN technical specification or material standard unless otherwise specified on the drawing, order or inspection schedule. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publica
11、tions. 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 revision.
12、 For undated references the latest edition of the publication referred to applies. EN 444 EN 462-1 EN 462-2 EN 462-3 EN 584-1 EN 1330-1 EN 1330-2 EN 1330-3 EN 4179 EN 4258 EN 4259 EN 25580 ASTM El55-95 ASTM E192-95 ASTM E242-95 ASTM E446-93 ASTM El 320-95 Non-destructive testing - General principles
13、 for radiographic examination of metallic materials by X- and gamma-rays Non-destructive testing - Image quality of radiographs - Part 1: Image quality indicators (wire type), determination of image quality value Nondestructive testing - Image quality of radiographs - Part 2: Image quality indicator
14、s (steplhole type), determination of image quality value Non-destructive testing - Image quality of radiographs - Part 3: Image quality classes for ferrous metals Non-destructive testing - Industrial radiographic film - Classification of film systems for industrial radiography Non destructive testin
15、g - Terminology - Part 1 : List of general terms Non destructive testing - Terminology - Part 2: Terms common to the non-destructive testing methods Non destructive testing - Terminology - Part 3: Terms used in industrial radiographic testing Aerospace series - Qualification and approval of personne
16、l for non-destructive testing 1) Aerospace series - Metallic materials - General organization of standardization - Links between types of EN standards and their use Aerospace series - Metallic materials - Definitions of general terms 2) Non-destructive testing - Industrial radiographic illuminators
17、- Minimum requirements Standard Reference Radiographs for inspection of Aluminium and Magnesium Castings 3) Standard References Radiographs for Investment Steel Castings for Aerospace Applications 3) Standard Reference Radiographs for Appearances of Radiographic Images as Certain Parameters are Chan
18、ged 3) Standard Reference Radiographs for Steel Castings up to 2 in (51 mm) in Thickness 3) Standard Reference Radiographs for Titanium Castings 3) 1) Published as AECMA Prestandard at the date of publication of this standard 2) In preparation at the date of publication of this standard 3) Published
19、 by: American Society for Testing and Materials (ASTM), 1916 Race St., Philadelphia, PA 191 03 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- STD-AEC
20、MA PREN 2002-21-ENGL 2000 LO3231L 0037472 384 Page 4 prEN 2002-21: 2000 3 Definitions For the purpose of this standard, the following definitions apply: 3.1 General terms See EN 4259. 3.2 Other terms See EN 1330-1, EN 1330-2 and EN 1330-3. 4 Health and safety Resources, test pieces, test samples, te
21、st materials, test equipment and test procedures shall comply with the current health and safety regulations/laws of the countries where the test is carried out. Where equipment, materials and/or reagents which may be hazardous to health are specified, appropriate precautions in conformity with loca
22、l regulations/laws shall be taken. Particular attention shall be paid to the health and safety requirements applicable to ionising radiation (y and X-ray). 5 Principle The method requires the use of X- or gamma-radiography for flaw detection purposes, using film or real time techniques, applicable t
23、o the inspection of metallic materials. See EN 444. 6 Testing requirements 6.1 Reco u rcec The resources shall be appropriate for fixed installation or portable system used on-site. 6.1 .I Equipmenplant X-ray source(s) and Gamma-ray source) performance parameters appropriate to the material thicknes
24、s and geometry of components under inspection; Image quality indicators to EN 462-1 or EN 462-2; Film processing system; Film density measuring system to EN 444; Suitable viewing room with appropriate control of illumination; Viewing screen with luminance to EN 25580 and capable of masking to area o
25、f interest; For real time radiographic systems - test sample or test part: a means of remote manipulation; - electronic viewinglrecording means; - software; - image enhancement and assessment. Radiation monitors calibrated in accordance with national standards. Radiation hazard warning system; Gamma
26、-ray source storage facility; Building or room with suitable radiation shielding; Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- STD.AECMA PREN 2002-
27、23-ENGL 2000 m 3032311 0037473 210 = Page 5 prEN 2002-21: 2000 6.1.2 Materialsheagents Industrial radiographic film to EN 584-1; Film processing chemicals; Electronic recording means. 6.1.3 Qualification of personnel Testing to the requirements of this test method shall only be undertaken andlor sup
28、ervised by NDT personnel, qualified and approved in accordance with the requirements of EN 4179. 6.2 Test samples The test sample shall be the casting ; or group of castings if specified by the testing procedure. 6.3 Testing procedure All inspection shall be carried out in accordance with written in
29、structions approved by the purchaser. The inspection procedure) covered by the written instructions shall comply with the requirements of EN 444. Additional reference samples to verify the sensitivity of the inspection may be required. The B class image quality shall be used according to EN 462-3. T
30、he geometric unsharpness shall be less than 0,15 mm. 6.4 Expression of results Flaws in the casting or group of castings and reference samples shall be verified in accordance with the required level of resolution. Flaws shall be classified by comparison with the reference radiographs given in ASTM E
31、155-95, ASTM El92-95, ASTM E242-95, ASTM E446-93 or ASTM E1320-95 as applicable unless otherwise stated in the technical or material standard, drawing or order. The location of the flaws in the casting or group of castings shall be marked by suitable means, e.g. on the item or by means of a sketch.
32、7 Inspection report All results shall be written form and the test report shall include, when relevant, at least the following information: - reference to this test method; - reference to the written instruction; - any other information relevant to the test method, (e.g. test condition, test equipme
33、nt, test procedure, verification, .); - identification and traceability of the casting to be tested in accordance with the technical specification or drawing; - results; - date of inspection; - traceability to individuals performing and approving the test work; - any incident which may have affected the results; - any deviation from the test method standard. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
