1、A.E.C.M.A. STANDARD NORME A.E.C.M,A. A.E.C.M.A. NORM prEN 2601 Issue P 1 February 1990 EDITE PAR LASSOCIATION EUROPEENNE DES CONSTRUCTEURS DE MATERIEL AEROSPATIAL 88, boulevard Malesherbes, 75008 PARtS - TeL. 45-63-82-85 UDC : 629.7.02 : 621.827.1 : 621.85.053 : 658.56 Key words : Aeronautical indus
2、try, aircraft controls, rod fork-end, threaded shank, specification ENGLISH VERSION Aerospace series Fork ends, adjustable Technical specification Srie arospatiale tuft- und Raumfahrt Embouts rglables chape Einstellbare Gabelkpfe Spcification technique Technische Lieferbedingungen This Aerospace Ser
3、ies. pre-standard has been drawn up under the responsibility of AECMA .e *IAssociation Europenne des Constructeurs de Matriel Arospatial). It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned AECMA Commission following commen
4、t by the Member countries. Subsequent to the publication of this pre-standard, the technical content shall not be changed tu an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and signature of the AECMA Standard Che
5、cking Centre (NPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for final vote. Nota - Extra copies can be supplied by B.N.A.E. - 8, rue Moreau-Vauthier - 92100 BOULOGNE-BILLANC
6、OURT Edition approved for publication Comments should be sent within six months CI Chairman after the date of publication decision 28th February 1990 A.E.C.M.A. 88, Bd. Malesherbes 75008 PARIS - FRANCE Mr. MOUTARDE I I aecma 19: AECMA PREN2601 40 tl 101231L - 0003bb7 7 m - - prEN 2601 Page 3 1. Scop
7、e and fl.eld of appl.ication This standard speciffes the characteristics, the qual.ification and acceptance conditions for single or double fork ends with threaded shank, defined by EN 2515, EN 2587, EN 7791 and EN 279?, used wfth flight control rods. 2 References XSO 5855/1, IS0 5855/2, EN 2000, EN
8、 2002-16, EN 2133, EN 2515, EN 2587, EN 2791, EN 3792 Aerospace - MJ threads - Part 1 : General requirements Aerospace - MJ threads - Part 2 : T,f.mit dimensions for bolts and nuts Aerospace series - ual.ity assurance requirements for the manufacture and procurement of EN aerospace standard products
9、 i) Aernspace series - Test methods for metallic materials - Part 16: Method or penetrant flaw detection 2) Cadmium plating of steels with maximum specified tensile strength equal to or less than 1450 MPa and copper and copper allors - Aerospace series 1) Rod ends, adiustable, simgle fork and thread
10、ed shank - Dimensions and loads - Aerospace series 1) Rod ends, adiustable, double fork and threaded shank - Dimensions and loads - Aerospace series i) Aerospace series - Rod ends, adjustable, single fork and threaded shank with implantation: 1,5 X .oI thread - Dfmensions and loads 3) Aerospace seri
11、es - Pod ends, adfustable, double fork and threaded shank with implantation: 1,5 X $4 thread - Dimensions and loads 3) 3 Definitions 3.1 Surface discontinuities - Crack : rupture in the material which may extend in any directions and which may he intercrystalljne or transcrystalline in charecter. -
12、Seam : Open surface defect resulting from extension of the material - Lap : surface defect caused hy fol.ding over metal fins ar sharp corners and them rolling or forging them into the surface. - Score : open longitudinal defect in the material resulting from a metallic tearinp; or a deformation. 3.
13、2 Production batch Ratch consisting of fork ends of the same tvpe, the same dimensions and the same material hatch, defined by the same dimensional standard. The material used shall be issued from the same batch of material 1) Published as AECMA standard at the date of publication of the present sta
14、ndard. 2) In preparation at the date of publication of the present standard. 3) Puhliched as AECMA pre-standard at the date o ptib.1.ication of the present standard. AECMA PREN2bOL 90 a LOL23LL 0003670 5 I - prEN 2601 Page 4 3.3 Delivery batch Batch composed of identical fork ends which can be issue
15、d from one or more production batches. 4 Required characteristics, control and test methods See table 1. Table 1 -I- . I Cha racte- ristics Requirements Inspection and test methods - ._ The manufacturers test and acceptance certificates for semi-finished products may be used for this inspection. Mat
16、er i al s Conformi ng with the product standards. Suitable measuring instruments; for the the. threads a “go/no go“ thread gauge. Conforming kith the product standards. Dimensions tolerances and masses Surface roughness Conforming with the product standards. Suitable instruments or visual-tactile s
17、amp1 es Suitable inspection methods . Look for seams and cracks by dye penetrant process according to EN 2002-16 or magnetic process. According to EN 2133. - Surface -appearance No surface discontinuities except those admitted in 4.7. Conforming with the product standards. Surface treatment Marking
18、- Conforming rri th the. product standards. Shall not affect the material or prejudice the endurance of the rod ends I Vi sua1 . - Thread I Rolled and free from burrs. Visual. . . Microscopic section : - on complete parts; - during manufacturing I See .figures 1 and 2. Longi tu- dinal and circumf e-
19、 renti al grooves Shall not adversely affect the operatioi of the thread. Visual and thread gauge. Tensi 1 e u1 ti ma te static 1 oads After completion of Che test opposite : There shall be no -failure at the ultima, static loads given in the product standards. . Mount the rod end on a tensile devic
20、e as far as the circular safety groove. . Apply a basic load equal to 10 O of the ultimate static load. . Increase the load progressively 10 MPa per second) up to the ultimate. static load. . Check the rod ends visually. - 1) Q = Qualification, 2) A = Acceptance. _ AECMA PREN2bOL 90 e LOL231L 0003b7
21、2 9 I prEN 2601 Page 6 vpec of inspections 5 Qualitv assurance 5.1 Approval- of manufacturer See -EN 2000. 5.2 Product qualiflcation Defined in : Special number of inspected See tables 2 and 3 : The order of the inspections and tests 3,s left to the initiative of the qual. if ica t: ion au thor it y
22、. ualificatlon of the code diameter 08 of a rod end will be deemed to be acquired if the qualificatlon has been granted prev-tous1.y to the code diameter O6 and 10. and tests Materials Dtmensions, tolerances and masses Surface roughness Surface appearance Surface treatment Marking samples 3 45 1) ?
23、1 4.1 X X X X X 4.2 x X x 4.3 x X 4.4 X X 4.5 X X 4.6 X x X X X 4.5 1) Sampie without surface treatment Table 3 : Destructive inspectlons and tests I s amD le s 1) Sample with or without surface treatment 6 Acceptance 6.1 Manufacturers responsahility See EN 2000, Tvpes of inspections arid tests Thre
24、ad Tensile ultimate load 6.3. Procedure See table 4. The order of the inspections is left to the initiative of the acceptance authority. 6.3 Customers qualitv control Special. number of inspected samp les 1 2 3 .4 5 Defined in : 4.7 X X x 4.9 X X The customer mav, upon receiving a dellvery batch, ca
25、rrv out an7 Cnspections or tests from in table 4 to ensure that the delfvered items are of the required standard of quality, and to determine whether the consignment is acceptable. AECMA PREN260L 90 111 LOL23Ll 0003b73 O U i I _- i prEN 2601 Page 7 Table 4 4.7 4,8 .- . . er- Inspections 1 % ou 1 par
26、t mini. 3) 100 % - *- Materials t- Dimensions? tolerances and masses - - Surface roughness 1) I Surface appearance 1) Surface treatment Marking - .- .LThread I Longitudinal or cfrcumf erential groov - I Iefined in : Sampling 2) 4.1 4.2 - 4.3 4.4 Certificate of material manufacturer. Tolerances 0,2 m
27、m : 10 Z or 8 parts mini. 3) Tolerances 0,2 mm : 100 % 5 2 or 4 parts mini. - 3) 100 % 4.5 4.6 5 2 ou 4 parts mini. 3) 100 % 1) Inspection to be carried out before surface treatment. 2) When inspection is not carried out on 100 % of the delivery batch, any defect found on one sample shall be searche
28、d on the whole batch; 3) Sampling when the production batch comprises less than 100 parts. 9 Packaging The packaging shall protect the parts against humidity, corrosion, dirt and mechanical deteriorations, The packaging shall be indjvidual or collective. It shall be identified as follows : Individua
29、l packaging : - Manufacturers name ; - Identity block according to the product standard ; - Packaging date. Collective packaging : - Manufacturers name ; - Quantity? i.e. number of items contained in the collective packaging ; - Identity block according to the product standard ; - Number of contract or order ; - Part designation. 10 Certificate of conformity All single or double fork rod ends supplied in accordance with this standard shall be accompanied by a certificate of conformity from the manufacturer.
