1、AECMA STANDARD NORME AECMA AECMA NORM prEN 2345 Edition 2 February 1996 ICs : PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Guiiedeiie 94 - B-I 200 BRUXELLES - Tel. (32) 2 775 81 1 O - Fax. (32) 2 775 81 11 Descriptors : ENGLISH VERSION Aerospace series Aluminium and aluminiu
2、m alloy rivets Technical specification Srie arospatiale Rivets en aluminium et alliages daluminium Spcification technique Supersedes Edition 1 June 1982 Luft- und Raumfahrt Niete aus Aluminium und Aluminiumlegierungen Technische Spezifikation This “Aerospace series“ Standard has been It is published
3、 on yell0 w paper in three European Association of Aerospace Industries). for formal vote. Replace page 1 of the previous edition by this page Withdrawal I The eouivalent versions in French and German lanquages I I - ., A I can be SUDDlied bv B.N.A.E. - OppIuVGu 1996-02-29 I Technopolis 54 - 199, ru
4、e Jean-Jacques Rousseau 92138 ISSY - LES - MOULINEAUX CEDEX - FRANCE 1 SOMMAIRE ANNEX SCOPE AND FIELD OF APPLICATION REFERENCES MATERIALS REQIJIRED CHARACTERISTICS METHODS OF INSPECTION AND TESTS AC CE P T A N CE R EQ IJ I RE MEN TS MARKING - PACKING AND CERTIFICATE OF CONFORMITY O t i. 2 3 4 4.1 pr
5、EN2345 Page 3 A. E.C.M. A. STANDARD prEN2345 ALUMINIUM AND ALUMINIUM ALLOY RIVETS TECHNICAL SPECIFICATION SCOPE AND FIELD OF APPLICATION This standard specifies the conditions to which aluminium and aluminium alloy solid rivets shall comply when intended for aerospace applications. REFERENCES EN2002
6、-1 , Test methods for metallic materials - Part 1, Room Temperature EN2002-7 , Test methods for metallic materials - Part 7, Hardness testingl) EN2002-8 , Test methods for metallic materials - Part 8, Determination of EN2002-11, Test methods for metallic materials - Part 11, Shear testing for EN2114
7、 tensile test 1) grain size 1) rivet wire and rivet , Aluminium 1050A-H14 - Wire for rivets - D L 10 mm i) EN2115 , Aluminium alloy 2117-Hl4 or T4 - Wire for rivets - DLlO mm 1) EN2116 EN2117 , Aluminium alloy 2017A-H14 - Wire for rivets - D 4 10 mm i) , Aluminium alloy 5056A-0 or H32 - Wire for riv
8、ets - D 410 mm 1) MATERIALS The material shall conform to the requirements of the wire standard as called for on the relevant rivet standard. REQUIRED CHARACTERISTICS General Rivets, as delivered to the user shall meet all the requirements defined on the rivet standard and conform to the following c
9、haracteristics, In preparation. I, AECMA PREN2345 A2 LOL23LL 0002778 L mt prEN2345 Page 4 4.7 Physical characteristics 4.2.1 Surface condition appearance Rivets shall be of uniform appearance free from seams, laps, cracks, pits, scale, tool marks, shuts and any other defect detrimental to the use of
10、 the rivet. (See clause 5.1.1). I 4.2.2 Surface treatment Surface treatment shall be as defined on the appropriate rivet standard. (See clause 5.1.2). 4.2.3 Heat treatment Heat treatment delivery state shall be as defined on the appropriate rivet standard. (See clause 5.1.3). 4.2.4 Grain flow The gr
11、ain flow shall be continuous and follow the contour of the part O (See clause 5.1.4). 4.2,5 Grain size Grain size shall be smaller than No. 3,5 in accordance with EN2002-8 (See clause 5.1.5) 4.2.6 Eutectic Melting (Liquation) I Rivets shall be free of eutectic melting (liquation) when examined at a
12、magnification of at least 400. (See clause 5.1.6). 4.2.7 Marking and colour identification The identification marking symbol shall be as defined by the rivet standard. The marking position shall be at the manufacturers option as indicated by the rivet standard, unless otherwise instructed by the use
13、r. (See clause 5.1.7). The marking shall not contain any sharp edges or have generated any other defects adversely affecting proper setting of the rivets. If colour identification is required, the colour shall be as specified in the rivets standard, and shall be uniform. O 4.3 Geometric and dimensio
14、nal characteristics The geometrical and dimensional characteristics shall conform to the requirements of the rivet standard. 4.4 Mechanical characteristics I The mechanical properties shall be checked either by a double shear test or by a terisile test supplemented by a hardness test. 4.4.1 hub1 t.
15、shear The rivets shall be tested in accordance with 5.3.1 and the results shaL1 conform to the values (of table 1 of Annex. O i) Ir1 preparation. AECMA PREN2345 82 I l10123Ll 0002 3 M prEN2345 Page 5 4.4.2 Tensile strength Rivet wire shall be tested in accordance with 5.3.2 and the results shall con
16、form to the values of table 2 of Annex. 4.4.3 Hardness Rivets and rivet wire from the same batch shall be tested in accordance with 5.3.3. The hardness values o the rivet wire shall conform to the requirements of the relevant material standard. The hardness values of the rivets shall correspond to t
17、he hardness values of the rivet wire with a tolerance of 2 5 %. 5 METHODS OP INSPECTION AND TESTS 5.1 Physical characteristics 5.1.1 Surface condition - appearances Rivets shall be visually examined with or without the aid of an enlarging apparatus but, the enlargement ratio is limited to 6. 5.1.2 S
18、urface treatment Unless otherwise specified, methods are left to the discretion of the manufacturer. 5.1.3 Heat treatment Heat treatment condition is verified by clause 5.3. 5.1.4 Grain flow Rivets sampled from the batch as per 6.5 shall be cut longitudinally along a plane of symmetry and subjected
19、to macroscopic examination using the appropriate reagents. 5.1.5 Grain size Rivets sampled from the batch as per 6.5, shall be cut through the shank diameter normal to the rivet centre line and subjected to macroscopic examination using the appropriate reagents. 5.1.6 Eutectic melting (Liquation) Ri
20、vets produced from solution treated materials sampled from the batch as per 6.5, shall be cut through the shank diameter normal to the rivet centre line and after polishing and mildly etching subjected to microscopic examination. 5.1.7 Marking , and identification of colours Verification by visual i
21、nspection. 5.2 Dimensions Methods are left to the discretion of the manufacturer. In cace of dispute, the projection method, at a magnification of 25 for diameters up to 6 mm and 10 for diameters above, shall be used as the referee method. The check shall be made at three equidistant points around t
22、he rivet, AECMA PREN23Li5 82 LOL23LL 0003000 4 = prICN2345 Page 6 5,3 Mechanical properties 5.3.1 Shear Rivets sampled from the batch as per 6.5 shall be tested in accordance with EN2002-11 I). Hivets are to remain undriven for this test. If the rivets are not long enough to protrude through the out
23、er flanges of the test apparatus, tests can be carried out on two rivets placed so that their shank ends butt at the centre tongue of the apparatus. 5.3.2 Tension Rivet wire samples as defined in 6.4.shall be tested in accordance with EN2002-1. 5.3.3 Hardness e Rivet wire samples as defined in 6.4 a
24、nd rivets sampled from the batch as per 6.8.2, in the delivery heat treatment condition shall be tested in accordance with EN2002-7. 6 ACCEPTANCE REQUIREMENTS 6.1 Responsibility Sufficient inspection and testing shall be done by the rivet manufacturer to assure that the product conforms to all requi
25、rements of this Technical Specification, see 7.3. 6.2 Qualification Qualification is the recognition of the capability of a manufacturer to manufacture a product in accordance with this technical specification and to guarantee its production at an acceptable quality level. 6.3 Batching For the purpo
26、se of all tests, inspection and supply a batch of rivets shall be defined as : Finished rivets of the same form, diameter and length made by the same process from one material batch subsequently heat treated and surface treated under identical conditions at the same time in the same equipment and pr
27、oduced as one run, without machine reset. The maximum mass of any batch shall be limited to 25 kg. 6.4 Samples of rivet wire Sainples of rivet wire, intended for tests shall be taken to mean wire coming from the same coils as the rivets of the batch that it represents. The wire shall have been heat
28、treated identically with the rivets of the batch. I ) Iri prepara tiori. i I AECMA PREN2345 82 1012311 0003001 b -. prEN2345 Page 7 6.5 Rivet samples The rivet samples intended for testing shall be taken at random from each batch. 6.6 Records The rivet manufacturer shall keep records for each rivet
29、batch indicating as a minimum. Relationship of rivet material wire batch to rivet batch. Copy of rivet material wire batch records and test data. Rivet batch heat treatment records. Rivet batch inspection and test records. Final inspection clearance. These records and all associated data shall be ke
30、pt on file for a minimum period of three years and be available for submission to a customer, on request, within that period. 6.7 Nature and Number of Inspections and Tests per batch Non Destructive Tests Destructive Tests Type of Inspection or Test Surface Condition - Appearance Surface Treatment M
31、arking and Colour Identification Geometric and dimensional Characteristics Grain Flow Grain Size Eutectic Melting Shear Tension Hardness Defined in 4.2.1 4.2.2 4.2.7 4.3 4.2.4 4.2.5 4.2.6 4.4.1 4.4.2 4.4.3 Number As per sampling plan defined in 6.8.1 At Manufacturers discretion to satisfy requiremen
32、ts of 6.1 As per sampling plan defined in 6.8.1 As per sampling plan defined in 6.8.2 A sample of rivet wire from each end of each coil used to make the rivet batch As per sampling plan defined in 6.8.2 I AECMA PREN23i.15 82 B 1012311 0003002 8 CI_ prEN2345 Page 8 6.8 6.8.1 Non Destructive Tests Sam
33、pling Plan and Acceptance/Rejection levels Number of rivets Maximum number from batch allowing acceptance to be sampled of defective rivets in sample of batch 1 32 3 50 5 80 7 125 10 2QO 14 315 21 500 21 _-_ Number of rivets in batch 281 to 501 to 1200 1201 to 3200 3201 to 10000 10001 to 35000 35001
34、 to 150000 6.8.2 Destructive Tests 7 Number of defective rivets resulting in rejection of batch 2) Number of rivets to be sampled from batch 5 5 5 Number of rivets in batch 1 151 to 280 281 to 500 1 1 501 to 1200 1201 to 3200 1 I 3201 to 10000 8 1 I 10001 to 35000 8 1 1 35001 to 150000 13 Defective
35、rivets shall not be returned to the batch. , e 211f the cause of rejection is due to method of operation of test equipment or a heat treatment fault that can be rectified satisfactorily, the tests shall be started again after climination of the cause, provided any surface treatment has been removed
36、prior to reheat treatment. A note to this effect shall be shown on the relevant inspection records, AECMA PREN2345 82 1012311 OU03003 T - -_- i l prEN2345 Page 9 7 MARKING - PACKING AND CERTIFICATION OF CONFORMITY 7.1. Packaging Rivets shall be supplied in strong durable containers capable of protec
37、ting the product from physical damage and corrosion. Any additional special packaging requirements shall be specified on the purchase order. If the rivets supplied belong to different batches they shall be separately packed and identified. Failing special specifications stated in the order, the numb
38、er of rivets in one package is left to the manufacturers discretion. maximum mass is however 25 kg. A copy of the Manufacturers release note related to the rivet batch shall be included in the package and may additionally be despatched under separate cover ifdesired. The 7.2 Marking 7.2.1 following
39、information: Durable external labels on the package shall contain the - Full rivet standard part number - Quantity in package (mass or number of rivets) - Customers Order number - Manufacturers identification, name and address - Manufacturers release note number - Manufacturers Batch Number - Manufa
40、cturers Inspection Stamp - Note for rivets in material EN 2116 (see also 7.2.3). - 7.2.2 following information: Labels on secondary packaging shall contain as a minimum the - Full rivet reference - Quantity in package - Batch number - Inspection Stamp - Note for rivets in material EN 2116 (see also
41、7.2.3). - 7,2.3 reference: For rivets in material EN 2116 the labels shall have the following “WARNING. These rivets require solution treating before setting.“ 7.3 Certificate of Conformity The rivet manufacturer shall, at the latest on delivery of the product, supply the purchaser with certificatic
42、n carrying final inspection approval to certify that the product meets all the requirements of the standard. rnm) 1.6 2,4 32 4.0 4,8 - -_ Rc 2 60 MPa Rc 2 196 MPe Rc 260 MPa 225 735 980 520 1690 2255 935 3035 4050 1460 4755 6340 2105 6850 9135 9,6 8505 27640 36855 Rm 2 100 MPa 185 430 775 1215 Rm 2
43、290 NIPS 546 1255 2260 3535 4,8 5,6 6,4 I_ -I_. 1755 5095 2400 6965 3145 9125 W” . AECMA PREN2345 82 I LOL23LL 0003004 L I prEN2345 Page 10 ANNEX STRENGTH TABLES FOR RIVET MATERIALS TABLE 1 Minimum Double Shear Strength (Load) (N) 1 Nominal Rivet diameters -I_ - - _ _- EN2117 Rc 170 MPa 640 1475 265
44、0 4145 5970 8165 10700 2880 I 9365 I 12485 5,6 I 12270 I 16360 6,4 I 3775 I 5880 I 19115 1 25485 8,O I 16665 I 24100 I TABLE 2 Minimum Tensile Strength (Load) (NI 1 ) Nominal I I EN2114 I EN2116 Rivet diameters EN21 16 Rm 400 MPa 755 1735 EN21 17 Rm = 280 MPa 525 1210 31 15 2180 3410 4920 6725 8810 13725 19845 _- 4,o 4875 7025 9605 12585 19605 28350 All values calculated on minimum rivet shank diameters and with undrivan rivets. i
