1、AECMA STANDARD prEN 4800-7 NORME AECMA Edition P 1 AECMA NORM September 2002 %dnl%?l Gulledelle 94 - 8-1200 Brussels - Tel. + 32 2 775 8110 - Fax. + 32 2 775 81 II - www.aecma-stan.org PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES - STANDARDIZATION . 30 September 2002 ICs: after the
2、date of publication to Gulledelle 94 AECMA-STAN Descriptors: ENGLISH VERSION Aerospace series Titanium and titanium alloys Tech n ical s peci f ka tio n Part 7: Remelting stock Srie arospatiale Titane et alliages de titane Spcification technique Partie 7: Produits pour refusion Luft- und Raumfahrt T
3、itan und Titanlegierungen Kneterzeugnisse Technische Lieferbedingungen Teil 7: Vormaterial This “Aerospace Series“ Presfandard has been drawn up under the responsibility of AECMA-STAN (The European Association of Aerospace Industries - Standardization). It is published on green paper for the needs o
4、f the European Aerospace industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of th!s Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or function
5、ally, without re-identification of the standard. Affer examination and review by users and formal agreement of AECMA-STAN it will be submitted as a draff European Standard to CEN (European Committee for Standardization) for formal vote. Nota - Extra copies can be supplied by B.N.A.E. - Technopolis 5
6、4 - 199, rue Jean-Jacques Rousseau - 92138 ISSY-LES-MOULINEAUX CEDEX Edition approved for publication I Comments should be sent within six months 1 Material Domain 8-1200 BRUXELLES Copyright 2002 O by AECMA-STAi Page 2 prEN 4800-7: 2002 Contents Page Introduction Scope . Normative references . 3 Def
7、initions . Wording of order . Health and safety . . 4 Technical requirements 4 Page 3 prEN 4800-7: 2002 O In trod uction 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 sta
8、ndard defines the requirements for the ordering, manufacture, testing, inspection and delivery of titanium and titanium alloy remelting stock. It shall be applied when referred to and in conjunction with the EN material standard unless otherwise specified on the drawing, order or inspection schedule
9、. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. 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 revis
10、ions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 2000 EN 2002-1 EN 2002-2 EN 2002-5 EN 2032-1 EN 2032-2 EN 2078 EN 2955 EN 3042 EN 3238 EN 3976
11、 EN 4258 EN 4259 EN 4268 TR 2410 Aerospace series - Quality assurance - EN aerospace products - Approval of the quality system of manufacturers Aerospace series - Test methods for metallic materials - Part 1 : Tensile testing at ambient tem peratu re 1) Aerospace series - Test methods for metallic m
12、aterials - Part 2: Tensile testing at elevated temperature 1) Aerospace series - Test methods for metallic materials - Part 5: Uninterrupted creep and stress-rupture testing 1) Aerospace series - Metallic materials - Part 1: Conventional designation Aerospace series - Metallic materials - Part 2: Co
13、ding of metallurgical condition in delivery condition Aerospace series - Metallic materials - Manufacturing schedule, inspection schedule, inspection and test report - Definition, general principles, preparation and approval Aerospace series - Recycling of titanium and titanium alloy scrap Aerospace
14、 series - Quality assurance - EN aerospace products - Qualification procedure Aerospace series - Metallic materials - Test method - Shear test for wires and rivets 2) Aerospace series - Titanium and titanium alloys -Test method - Chemical analysis for the determination of hydrogen content 1) Aerospa
15、ce series - Metallic materials - General organization of standardization - Links between types of EN standards and their use Aerospace series - Metallic materials - Definition of general terms 1) Aerospace series - Metallic materials - Heat treatment facilities - General requirements 2) Aerospace se
16、ries - Metallic materials - Relationship between dimensional standards and material standards 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 as AECMA Technical Report at the date of publicati
17、on of this standard Page 4 prEN 4800-7: 2002 3 Defini ti ons General definition, see EN 4259, and the following. 3.1 melt a mass of homogeneous liquid metal from a single charge 3.2 remelt solid metal resulting from a single melt 3.3 parent cast a cast of remelting stock to be used for the productio
18、n of castings 3.4 remelting stock metal supplied in cast or wrought form, the composition of which has been established by chemical analysis 4 Wording of order The order shall clearly indicate: - quantities to be supplied; - dates of delivery; - material standard number; - delivery condition and met
19、allurgical code of products; - dimensions and tolerances or reference to an appropriate dimensional standard; - product designation, when required; - forwarding address; - nature and type of packing, if required; - definition and frequency of any special tests and their retest procedures, if require
20、d. 5 Health and safety Products in the delivery condition shall fulfil the health and safety laws of the area of the country when and where it is to be delivered. A product safety data sheet shall be available. 6 Technical requirements s 6.1 General The product shall be manufactured in accordance wi
21、th the requirements of the relevant material standard and the applicable requirements of this specification. A manufacturing schedule shall be established and applied in accordance with EN 2078. Product shall satisfy the requirements of the material standard and/or order and shall be free from irreg
22、ularities prejudicial to the subsequent manufacture or use of this product. Not with standing previous acceptance complying with this material standard, any product that is found, at a later stage, to contain such defects shall be rejected. Page 5 prEN 4800-7: 2002 Unless otherwise specified, the re
23、quirements in tables 1 and 2 shall apply in conjunction with those of the relevant material standard. Table 1 relates to lines 1 to 29 (inclusive) of the material standard and table 2 relates to lines 30 onwards in which the sub-line format is also used. Lines 2 to 98 may also be opened in line 100
24、if the material standard details specific qualification requirements. If a specific line number is not shown in tables 1 and 2, the requirement is stated in the material standard and/or order. The requirements of the order andlor material standard shall over-ride the requirements of the technical sp
25、ecification. 6.2 Qualification requirements Qualification requirements when invoked by the material standard and/or order are detailed in tables 1 and 2. Unless otherwise agreed between the manufacturer and purchaser the qualification phase shall be run on the first 3 batches. 6.3 Release requiremen
26、ts 6.3.1 Release tests Release testing shall be the responsibility of the manufacturer. The purchaser reserves the right to perform any of the inspections and/or tests required by the material standard and/or order. The test samples shall be representative of the product. When required the manufactu
27、rer shall inform the purchaser of the planned dates for extraction of samples and release testing in order that these operations may be witnessed. Tables 1 and 2 detail the requirements for each line of the material standard. Unless otherwise specifically requested by the purchaser, a particular ins
28、pection and/or test for release shall be carried out if corresponding acceptance criteria and/or values are stated in the applicable material standard, but see also section 6.3.5 “Capability clause“. 6.3.2 Retests If the test procedure or test piece preparation is faulty, testing shall be re-applied
29、 at the original frequency after rectification of the original cause of failure. When failure cannot be attributed to faulty testing, or test piece preparation, further test samples shall be selected at twice the original frequency from the product, one of which shall be that on which the original r
30、esults were obtained unless already withdrawn by the manufacturer after suitable identification of the cause of failure. If all retest results are satisfactory, the batch shall be accepted. If one or more tests are unsatisfactory, the batch shall be: - rejected, or - 1 O0 % retested and the conformi
31、ng products accepted, or - partially or fully re-heat treated if heat treatment can rectify the cause of the failure and tested as a completely new batch except for chemical composition, for which redetermination of hydrogen content is required. No product or test sample shall be re-heat treated mor
32、e than twice. 6.3.3 Rejection Any failure to meet the requirements of the material standard shall be cause for rejection, 6.3.4 Special tests Special tests may be required by the purchaser. In such cases, the nature of the test, method, frequency and technical requirements shall be specified on the
33、order or inspection schedule and shall be mutually agreed by the manufacturer and purchaser. Page 6 prEN 4800-7: 2002 6.3.5 Capability clause Where capability clause is invoked and where sufficient statistical evidence exists, the test need not be carried out (unless specifically requested by the pu
34、rchaser). However, this in no way reduces the obligations of the manufacturer to fulfil the requirements. If subsequent testing indicates that the product does not comply with the requirements, the batch shall be rejected. If sufficient statistical evidence does not exist, the test shall be carried
35、out at a frequency agreed between the manufacturer and the purchaser. 6.3.6 Statistical process control Reduction in the extent of release testing, other than that defined in 6.3.5 above, may be negotiated with the purchaser on the basis of appropriate statistical process control and/or statistical
36、data. 6.3.7 Inspection and test report The manufacturer shall furnish, with each delivery, a report conforming to the requirements of EN 2078 stating the following: - manufacturers name and address and, if appropriate, identification of the plant; - order number; - material standard number; - delive
37、ry condition and metallurgical code of the product; - quantity and dimensions; - manufacturing and inspection schedule reference; - cast and batch number; - batch and/or test samples heat treatment condition; - results of the tests and retests if any. 6.4 Traceability Each product shall be traceable
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