1、PREN2070-Ob 87 3032333 0007b33 4 A.E.C.M.A, STANDARD prEN 2070 NORME A.E.C.M.A. A.E.C.M.A. NORM Part 6 Edition 1 February 1987 ENGLISH VERSION Aerospace series Aluminium and aluminium alloy wrought products - Technical specification - Part 6 - Rivet wire Srie arospatiale Demi-produits corroys en alu
2、minium et alliages daluminium - Spcification technique - Partie 6 - Fils rivets Luft- und Raumfahrt Halbzeug aus Aluminium und Aluminiurn-Knetlegierungen - Technische Lieferbedingungen - Teil 6 - Nietdrhte This industrial standard for the aerospace sector has been drawn up under the responsibility o
3、f AECMA (Association Europenne des Constructeurs de Matriel Arospatial). it is published on yell0 w paper in three equivalent versions (English, French, German), it will be submitted to CEN (European Committee for Standardization) as a draft European Standard. Approved by The equivalent versions in
4、French arid German languages - COMITE DE NORMALISATION can be supplied by B.N.A.E., 8, rue Moreau-Vauthier of A.E.C.M.A. 1987-02-01 92100 BOULOGNE-BILLANCOURT - FRANCE. .EN 20 7 0-6 Page 2 AECIA PREN2070-Ob 87 1012311 0007b32 b mi 9 Contents Scope and field of application References Batch size D ime
5、ns ions External defects Mechanical testing Suitability for cold heading Special tests Marking O e O .o rr- . AECMA PREN2070-Ob 87 LOL23LL 0007633 8 W 1 Scope and field The present standard prEN2070-6 Page 3 E application specifies the particular requirements for aluminium and aluminium alloy wire i
6、ntended for rivet manufacture. This standard shall be used in conjunction with EN2070-1. 2 References IS0 R 2101-1971, Aluminium and aluminium alloys - Shear test for rivet wire and rivets. EN2002-1, Aerospace series - Test methods for tallic materials - Part 1 - Tensile test at ambient temperature
7、EN2070-1, Aerospace series - Aluminium and aluminium alloy wrought products - Technical specification - Part 1 - General requirements 3 Batch size . The maximum weight of the batch shall be 500 kg. 4 Dimensions Dimensions and tolerances shall conform to the relevant sem-finished product standard. Th
8、e frequency of examination adopted by the manufacturer shall be sufficient to permit him to certify compliance with the requirements. 1) In preparation AECMA PREN2070-Ob 7 m LOL23LL 0007b34 T m prER2070-6 Page 4 5 Ext rnal defects Visual surface inspection shall be carried out at a frequency suffici
9、ent to permit the manufacturer to certify compliance with the requirements of this clause. The wire shall be clean and smooth and free from defects such as drawing scores, die pick-up, indentations, cracks or corrosion considered harmful to its use. 6 Mechanical testing Wire shall be submitted to ei
10、ther the tensile test (in accordance with EN2002-1) or the shear test (in accordance with IS0 R 2101) at the option of the manufacturer in the condition of siipply and/or use as required by the material, standard. The frequency of testing is given in- table 1. The values obtained shall meet the requ
11、irements of the material standard. Regardless of the type of test carried out, the wire shall be capable of meeting the tensile test and shear test values required by the material standard. Re-testing procedure for shear testing shall be as EN2070-1 “Tensile re-tests“. 7 Suitability for cold heading
12、 The quality of the wire shall be such that cold headed rivet shapes can be produced without developing cracks, or general or localized excessive grain growth after heat treatment. Evaluation of forming capability shall be accomplished, for example, by some type of torsion test or a cold heading tes
13、t or such other tests as nay be agreed between the manufacturer and purchaser. The frequency of examination adopted by the manufacturer shall be sufficient to pemit him to certify compliance with the requirements. AECMA PREN2070-Ob 87 m LOL23LL O007635 L m prEN2070-6 Page 5 8 Special tests Special t
14、ests and inspections may be required by the purchaser. In such cases, after agreement between purchaser and manufacturer, nature of the tests, methods, number and acceptance standards shall be specified on the order or in the inspection schedule. 9 Marking A durable label attached to each coil or bu
15、ndle shall bear the information required by EN2070-1 (Clause 10.1) in addition to the following : - wire diameter, - weight of coil or bundle in kg. If special test in accordance with clause 8 are required-the marking shall be defined and shall reflect these extra requirements. The frequency of examination adopted by the manufacturer shall be sufficient to permit him to certify compliance with the requirements. AECIA PREN2070-Ob 7 I10123Ll 0007b3b 3 prEN2070-6 Page 6 I - I t - - lu a v) s I - lu 3 u) 5 8 + h *. L* f 00 *. i- I, 3 L o. o e (o Y
