AECMA PREN 4585-2000 Aerospace Series Clips Spring Tension Technical Specification Edition P 1《航空航天系列.夹弹簧张力技术规范.P1版》.pdf
《AECMA PREN 4585-2000 Aerospace Series Clips Spring Tension Technical Specification Edition P 1《航空航天系列.夹弹簧张力技术规范.P1版》.pdf》由会员分享,可在线阅读,更多相关《AECMA PREN 4585-2000 Aerospace Series Clips Spring Tension Technical Specification Edition P 1《航空航天系列.夹弹簧张力技术规范.P1版》.pdf(12页珍藏版)》请在麦多课文档分享上搜索。
1、AECMA STANDARD NORME AECMA AECMA NORM I I 0 aecma 2000 prEN 4585 Edition P 1 June 2000 I PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - B-1200 BRUXELLES - Tel. (+32) 2 775 81 1 O - Fax. (+32) 2 775 81 1 1 Edition approved for publication 2000-06-30 ICs: 49.060
2、Comments should be sent within six months after the date of publication to AECMA Gulledelle 94 B-1200 BRUXELLES Descriptors: aircraft industry, aircraft equipment, clip, clamp, quality assurance, specification, characteristic, inspection, test Srie arospatiale Colliers lyre Spcification technique EN
3、GLISH VERSION Aerospace series Clips, spring tension Technical specification Luft- und Raumfahrt Federklammern Technische Lieferbedingungen This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA (The European Association of Aerospace Industries). It is published on g
4、reen 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 extent that interchangeabili
5、ty is affected, physically or functionally, without re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPS) and formai agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European
6、Committee for Standardization) for formal vote. Nota - Extra copies can be supplied by B.N.A.E. - Technopolis 54 - 199, rue JeamJacques Rousseau - 92138 ISSY-LES-MOULINEAUX CEDEX C8 Chairman Mr Feltham COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Han
7、dling ServicesPage 2 STD*AECMA PREN 4585-ENGL 2000 II LOL2311 0018517 2hT II prEN 4585: 2000 Contents . , , . . .,_. 3 . 3 3 5 6 1 . . ._._._ 2 3 Normative references . . . . . . , , . .I . . . . .I. . . . . 4 Quality assurance . . . . . . . ,. 5 Annex A (normative) - Installation and removal of the
8、 mandrel Annex 6 (informative) - Retention resistance test bench Requirements. . . . , . , , , , , , . , , , , , , , . , , , , , . , , , . , , , , , , , , , , . , . . , . _, . . . COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling Services STD-AEC
9、MA PREN 4585-ENGL ZOO0 I LOL23LL 0018518 1Tb D Page3 prEN 4585: 2000 1 Scope This standard specifies the characteristics, qualification and acceptance requirements for spring tension clips for the support of electrical harnesses, in alloy steel for aerospace applications. It is applicable whenever r
10、eferenced. 2 Normative references IS0 2859-1 IS0 3452 IS0 3534-1 977 IS0 4288 EN 3042 TR 4586 TR 4587 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by lot inspection Non-destructive testing - Penetrant inspection - Gener
11、al principles Statistics - Vocabulary and symbols Geometrical product Specifications (GPS) - Surface texture: Profile method - Rules and procedures for the assessment of surface texture Aerospace series - Quality assurance - EN aerospace products - Qualification procedure Aerospace series - Clips, s
12、pring tension - Design recommendations 1) Aerospace series - Clips, spring tension - Assembly recommendations 1) 3 Terms and definitions For the purposes of this standard, the following terms and definitions apply. 3.1 batch quantity of finished spring clips, of the same type and same diameter, prod
13、uced from a material obtained from the same melt, manufactured in the course of the same production cycle, following the same manufacturing route and having undergone all the relevant heat treatments and surface treatments 3.2 Surface discontinuities 3.2.1 crack rupture in the material which may ext
14、end in any direction and which may be intercrystalline or transcrystalline in character 3.2.2 seam open surface defect 3.2.3 surface defect caused by folding over metal fins or sharp corners and then compressing them into the surface lap 1) Published as AECMA Technical Report at the date of publicat
15、ion of this standard COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling Services3.2.4 inclusions non-metallic particles originating from the material manufacturing process. These particles may be isolated or arranged in strings. 3.3 test temperatu
16、re ambient temperature, unless otherwise specified 3.4 simple random sampling the taking of n items from a population of N items in such a way that all possible combinations of n items have the same probability of being chosen 2) 3.5 critical defect a defect that, according to judgement and experien
17、ce, is likely to result in hazardous or unsafe conditions for individuals using, maintaining, or depending upon the considered product, or that is likely to prevent performance of the function of a major end item 2) 3.6 major defect a defect other than critical, that is likely to result in a failure
18、 or to reduce materially the usability of the considered product for its intended purpose 2) 3.7 minor defect a defect that is not likely to reduce materially the usability of the considered product for its intended purpose, or that is a departure from established specification having little bearing
19、 on the effective use or operation of this product 2) 3.8 sampling plan a plan according to which one or more samples are taken in order to obtain information and possibly to reach a decision 2) 3.9 limiting quality in a sampling plan, the quality level which corresponds to the specified 1 O % proba
20、bility of acceptance 3.10 acceptance quality limit (AQL) a quality limit which in a sampling plan corresponds to a specified but relatively high probability of acceptance It is the maximum per cent defective (or the maximum number of defects per hundred units) that, for purposes of sampling inspecti
21、on can be considered satisfactory as a process average 2). 2) Definition taken from IS0 3534 COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling ServicesSTD.AECMA PREN Y585-ENGL 2000 6 LO12333 0038520 854 Page 5 prEN 4585: 2000 3.1 1 retention resi
22、stance the minimum radial forces that the spring clip shall oppose to the removal of the retained part 3.1 2 grip range all harness nominal diameters which can be retained by a spring clip size 4 Quality assurance 4.1 Qualification EN 3042 Qualification inspections and tests (requirements, methods,
23、sample size) are specified in table 1. They shall be carried out on: - each type and size of spring clip; - 5 spring clips selected from a single batch by simple random sampling. The test programme may possibly be reduced, or the qualification be granted without inspection or testing: any such decis
24、ion shall be based on the results obtained on similar types and diameters of spring clips provided that the design and manufacturing conditions are identical. It shall be clearly identified on the test report. Table 2 indicates the allocation of spring clip samples for the inspections and tests. 4.2
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