1、 BSI BS*EN*2545-3 95 = 1624667 0514603 228 = BRITISH STANDARD AEROSPACE SERIES Titanium and titanium alloy remelting stock and castings - Technical specif icat ion Part 3. Pre-production and production castings The European Standard EN 2545-3 : 1995 has the status of a British Standard ICs : 49.040.
2、10 UDC 669.295-4 : 620.1 BS EN 2545-3 : 1995 BSI BS*EN*2545-3 95 Lb24bb9 05LLibOLi Lb4 BS EN 2545-3 : 1995 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 December 19
3、95 O BSI 1995 The following BSI references relate to the work on this standard: Committee reference ACE/61 Draft for comment 91/77417 DC ISBN O 580 24076 2 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Rchnical Committee ACE/6 1, Inspectio
4、n and testing requirements for aerospace metallic materials, upon which the following bodies were represented: Aluminium Federation British Forging Industry Association British Investment Casting Association British Iron and Steel Producers Association British Steel Industry Copper Development Assoc
5、iation Light Metal Founders Association Ministry of Defence Seamless Steel Tube Association Society of British Aerospace Companies Ltd. Amendments issued since publication =NO:- I Date I Text affected BSI BS*EN*2545-3 95 l1624669 05L4b05 OTO BS EN 2545-3 : 1996 Contents page Committees responsible I
6、nside front cover National foreword ii Foreword 2 kxt of EN 2545-3 3 i BSI BSxENx2545-3 95 m Lb24bb9 0514606 T37 m BS EN 2646-3 : 1995 National foreword This British Standard has been prepared by Technical Committee ACE/61 and is the English language version of EN 2545-3 : 1995 Aerospace series - Ti
7、tanium and titanium alloy remelting stock and castings - ahnical spect)%ation - Part 3 : Preproduction and production castings, published by the European Committee for Standardization (CEN). EN 2545-3 was produced as a result of international discussions in which the United Kingdom took an active pa
8、rt. Cross-references. The British Standards corresponding to the European Standards referred to in the text are identical in number and title to those given in clause 2, with the exception of the few Parts of EN 2002 and EN 2003. Compliance with a British Standard does not of itself confer immunity
9、from legal obligations. ii BSI BS*EN*2545-3 95 W 1624669 0514607 973 EUROPEAN STANDARD EN 2545-3 NORME EUROPENNE EUROPISCHE NORM May 1995 ICs 49.040.10 Descriptors: Aircraft industry, titanium, titanium alloy, forging, casting, melting, specification English version Aerospace series - Titanium and t
10、itanium alloy remelting stock and castings - Technical specification - Part 3: Pre-production and production castings Srie arospatiale - Produits pour refusion et pices moules en titane et alliages de titane - Spcification technique - Partie 3: Pices types et pices de srie Luft- und Raumfahrt - Vorm
11、aterial und GuBstcke aus Titan und Titanlegierungen - Technische Lieferbedingungen - Teil 3: Ausfallmuster- und SerienguBstcke This European Standard was approved by CEN on 1994-11-25. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving
12、 this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official version
13、s (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Den
14、mark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36,
15、B-1050 Brussels O 1995 Ail rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members. Ref. No. EN 2545-3 : 1995 E BSI BS*EN*2545-3 95 1624669 0534608 BOT Page 2 EN 2545-3: 1995 Foreword This European Standard has been prepared by the Europ
16、ean Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this standard has successively received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its prese
17、ntation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 1995, and conflicting national standards shail be withdrawn at the latest by November 1995. According to the Common CENKENE
18、LEC Rules, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain Sweden, Switzerland, United Kingdom. Contents 1 Scope 2 Normative references 3 Reco
19、mmendation for casting 4 Pre-production castings 5 Manufacture of production castings 6 Inspection and testing of production castings 7 Welding repair 8 Marking Annex A (normative) Annex B (normative) Annex C (normative) Annex D (normative) Annex E (normative) development hge 3 3 4 4 4 6 11 11 13 14
20、 15 16 17 1624669 D51YbD9 1 Scope This standard specifies the particular requirements titanium and titanium alloys. This standard shall be used in conjunction with EN conform to EN 2545-2. 74b Page 3 EN 25453 : 1996 for pre-production and production castings in 2545-1. Where remelting stock is used
21、it shall Unless otherwise required by the order, drawing or inspection schedule, the castings shall be supplied to quality level 2 (see table 3). 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references ar
22、e cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest e
23、dition of the publication referred to applies. EN 2002-1 EN 2002-2 EN 2002-5 EN 2002-16 EN 2002-21 EN 2003-1 O EN 2078 EN 2545-1 EN 2545-2 ASTM E 192-91 Aerospace series - Test methods for metallic materials - Part 1 : Tensile testing at ambient temperature Aerospace series - Test methods for metall
24、ic materials - Part 2 - Tensile testing at elevated temperature Aerospace series - Test methods for metallic materials - Part 5 : Uninterrupted creep and rupture testing Aerospace series - Test methods for metallic materials - Pan 16 : Dye penetrant testing 2) Aerospace series - Test methods for met
25、allic materials - Pan 21 : Radiographic testing on cast components 1 Aerospace series - Test methods for products in steel, titanium, titanium alloys and heat resisting alloys - Pan 10 : Sampling for determination of hydrogen content in titanium and titanium alloys Aerospace series - Manufacturing s
26、chedule - Inspection schedule - Inspection and test report - Description and rules for use Aerospace series - Titanium and titanium alloy remelting stock and castings - Technical specification - Part 1 : General requirements Aerospace series - Titanium and titanium alloy remelting stock and castings
27、 - Technical specification - Part 2 : Remelting stock Standard reference diagraphs of investment steel castings of aerospace applications 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 by: Am
28、erican Society for Testing and Materials (ASTM), 191 6 Race Street, Philadelphia, PA 19 103 Page 4 EN 2545-3 : 1996 BSI BS*EN*2545-3 95 Lb24bb 0514bLO 4bB 3 Recommendation for casting development It is strongly recommended that a technical representative of the manufacturer is given the opportunity
29、to examine the casting drawing at the initial stages of design and to advise on the optimum design which will facilitate consistent production of acceptable castings. The dimensional tolerances of the castings shall be as agreed between the purchaser and the manufacturer and indicated on the drawing
30、 or inspection schedule. 4 Pre-production castings 4.1 General 4.1.1 The following requirements shall be specified on the order, drawing and/or inspection schedule in addition to those specified in EN 2545-1 : - number of castings to be examined; - who shall perform the examination; - heat treatment
31、 condition; - type and frequency of inspection and testing necessary to evaluate and qualify the manufacturing process (dimensions, mechanical and metallurgical properties, etc.). 4.1.2 allow the definition of the optimum techniques to be used for production castings. The inspection and testing of p
32、re-production castings shall be carried out and recorded to 4.1.3 be carried out on production castings. The inspection and tests carried out on pre-production castings shall include those which will 4.2 Inspection and test report In addition to the information required by EN 2078, the inspection an
33、d test report on the pre- production castings shall provide all technical information to allow evaluation of the quality of these parts, e.g. radiographs, results of dimensional measurements. 4.3 Acceptance of pre-production castings When all inspection and test results relative to pre-production ca
34、stings have been reponed and accepted as satisfactory, the purchaser shall give his written agreement for series production. The inspection schedule and if required the manufacturing schedule shall be agreed between the manufacturer and the purchaser. 5 Manufacture of production castings 5.1 At the
35、start of production, the manufacturing schedule may be completed to allow the manufacturer to guarantee the reproducibility of the product with more certainty. All information, however minor, shall be recorded in the manufacturing schedule. BSI BS*EN*2545-3 95 1624667 05I14bLL 3T4 M Page 5 EN 2545-3
36、 : 1995 5.2 be made without the written approval of the purchaser. When a manufacturing schedule has been agreed, no change in manufacturing method shall When such changes are necessary in the case of, for example : a) alterations of pattern, mould material or position of runners and risers; b) alte
37、rations of the casting process; CI alterations of the heat treatment process; the purchaser shall decide if new pre-production castings shall be manufactured and tested. The manufacturing schedule and the inspection schedule shall be modified if necessary. 5.3 Any change in the form of the casting r
38、equiring a new or revised drawing may at the purchasers or manufacturers request result in : - manufacturing of new pre-production castings, or - modification of the manufacturing schedule and/or the inspection schedule. 5.4 Manufacturing schedules and inspection schedules, which are modified during
39、 production shall be subjected to the same approval process as the original documents. 5.5 Manufacture Castings shall be poured from a melt, made by one of the following methods : 5.5.1 VAR Vacuum arc consumable electrode melting : Castings shall be manufactured from remelting stock conforming to EN
40、 2545-2. No other material shall be introduced into the furnace during melting. 5.5.2 EBM Electron beam melting : Charges shall consist only of remelting stock conforming to EN 2545-2, approved Wrought or inhouse cast scrap and alloying elements (excluding titanium sponge). Light scrap or machining
41、chips shall not be used. All scrap shall be grouped into identified batches. The charges used for the manufacture of castings shall be constituted in accordance with one of the following methods : - defined and constant percentage of each allowed constituent (except alloying additions); - proportion
42、s of each allowed constituent at the option of the manufacturer. Unless otherwise specified on the order or manufacturing schedule this method shall be applied. Alloying elements may be added during melting to compensate for losses due to evaporation. 5.5.3 Other melting processes Requirements shall
43、 be agreed between the manufacturer and the purchaser. BSI BS*EN*2545-3 95 1624669 0514612 230 m Page 6 EN 2545-3 : 1995 5.6 Hot isostatic pressing H.I.P.1 Unless otherwise specified on the order, drawing or inspection schedule, all castings shall be subjected to hot isostatic pressing. The paramete
44、rs of this operation shall be stated on the manufacturing schedule. Mechanical test samples shall accompany the castings throughout this cycle. 5.7 Heat treatment Unless otherwise agreed, castings and their representative test samples shall be heat treated under vacuum or in inert gas. 5.8 Correctio
45、n of distortion Correction of distortion shall be carried out only after agreement between the manufacturer and the purchaser. The manufacturer shall specify the conditions under which such correction is to be carried out, subject to any provisions made by the purchaser. The method agreed shall be i
46、ncorporated in the manufacturing schedule. 6 Inspection and testing of production castings Except for chemical analyses all inspection and testing shall be performed after completion of H.I.P., heat treatment and, if appropriate, repair operations and correction of distortion. Inspection and testing
47、 shall be carried out on production castings under the same conditions as applied to pre-production castings. 6.1 Dimensions and tolerances They shall conform to the drawing or inspection schedule. The dimensions specially indicated by the purchaser shall be checked on every casting. For other dimen
48、sions the frequency of examination adopted by the manufacturer shall be sufficient to permit him to certify compliance with the requirements. 6.2 Chemical composition In addition to EN 2545-1, chemical composition shall be determined on samples cast integrally with or gated to castings and cut from
49、solidified material at a frequency of one per batch. 6.3 External defects 6.3.1 carried out in a satisfactory manner. Castings shall be suitably fettled, dressed, cleaned and etched, to enable inspection to be 6.3.2 detection to EN 2002-1 6. Each casting shall be examined for surface defects by visual inspection and penetrant flaw 6.3.3 dimensional tolerances. Dressing shall be followed by penetrant flaw detection (see table 1). Surface defects may be removed by local dressing provided the castings remain within the BSI BSaENm2.545-3 95 1624669 0514613 177 W Gr
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