1、BRITISH STANDARD AEROSPACE SERIESBS EN 3979:2005Aluminium alloy AL-P8090-O2 Sheet for superplastic forming (SPF) 0,8 mm u a u 6 mmThe European Standard EN 3979:2005 has the status of a British StandardICS 49.025.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54
2、g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 3979:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 7 December 2005 BSI 7 December 2005ISBN 0 580 46322 2National for
3、ewordThis British Standard is the official English language version of EN 3979:2005.The UK participation in its preparation was entrusted by Technical Committee ACE/61, Metallic materials for aerospace purposes, to Subcommittee ACE/61/-/24, Light alloys, which has the responsibility to:A list of org
4、anizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Corr
5、espondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard does not o
6、f itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and
7、 promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publ
8、icationAmd. No. Date CommentsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORMEN 3979 June 2005 ICS 49.025.20English version Aerospace series - Aluminium alloy AL-P8090-O2 - Sheet for superplastic forming (SPF) - 0,8 mm a 6 mm Srie arospatiale - Alliage daluminium AL-P8090-O2 - Tles pour formage sup
9、erplastique (FSP) - 0,8 mm a 6mm Luft- und Raumfahrt - Aluminiumlegierung AL-P8090-O2 - Bleche fr superplastische Formgebung (SPF) - 0,8 mm a6 mm This European Standard was approved by CEN on 22 April 2005. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the
10、 conditions for giving 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
11、three official versions (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
12、 Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STAN
13、DARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3979:2005: EEN 3979:2005 2 Foreword This document
14、 (EN 3979:2005) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Servi
15、ces of the member countries of AECMA, prior to its presentation 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 December 2005, and conflicting national standards shall be withdrawn at the
16、latest by December 2005. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the nation
17、al standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Port
18、ugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 3979:2005 3 Introduction 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. This standard has been prepared
19、in accordance with EN 4500-2. Scope This standard specifies the requirements relating to: Aluminium alloy AL-P8090- O2 Sheet for superplastic forming (SPF) 0,8 mm a 6 mm for aerospace application. 2 Normative references The following referenced documents are indispensable for the application of this
20、 document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 4258, Aerospace series Metallic materials General organization of standardization Links between types of EN standards and thei
21、r use. EN 4400-2, Aerospace series Aluminium and aluminium alloy wrought products Technical specification Part 2: Sheet and strip. 1)EN 4500-2, Aerospace series Metallic materials Rules for drafting and presentation of material standards Part 2: Specific rules for aluminium, aluminium alloys and mag
22、nesium alloys. 1) 1) Published as AECMA Prestandard at the date of publication of this standard. EN 3979:2005 4 1 Material designation Aluminium alloy AL-P8090- Others Element Si Fe Cu Mn Mg Cr Zn Li Zr Ti Each Total Al min. 1,0 0,6 2,2 0,04 2 Chemical composition % max. 0,20 0,30 1,6 0,10 1,3 0,10
23、0,25 2,7 0,16 0,10 0,05 a0,15 Base 3 Method of melting 4.1 Form Sheet 4.2 Method of production Rolled and thermomechanically processed to enhance superplastic forming capability 4.3 Limit dimension(s) mm 0,8 a 6 5 Technical specification EN 4400-2 Delivery condition O2 6.1 Heat treatment Thermomecha
24、nically processed to enhance superplastic forming capability 6.2 Delivery condition code F Use condition O2 7 Heat treatment Delivery condition Characteristics 8.1 Test sample(s) See EN 4400-2. 8.2 Test piece(s) See EN 4400-2. 8.3 Heat treatment T62 (see line 29) 9 Dimensions concerned mm 0,8 a 6 10
25、 Thickness of cladding on each face % 11 Direction of test piece L LT 12 Temperature C Ambient Ambient 13 Proof stress Rp0,2MPa 330 b 330 b14 Strength RmMPa 410 b 410 b15 Elongation A % A50 mm 4 bA50 mm 4 b16 T Reduction of area Z % 17 Hardness 18 Shear strength RcMPa 19 Bending k 20 Impact strength
26、 21 Temperature C 22 Time h 23 Stress aMPa 24 Elongation a % 25 Rupture stress RMPa 26 C Elongation at rupture A % 27 Notes (see line 98) a, b EN 3979:2005 5 29 Reference heat treatment Delivery condition b+ 525 C 535 C / WQ 40 C + 165 C 185 C / 20 h t 40 h 30 Microstructure See EN 4400-2. 2One samp
27、le per batch unless agreement is reached between the manufacturer and purchaser that the “capability clause“ may apply. 4The sample shall be taken from a region of the tensile specimen tested at line 63 representing a level of strain to be agreed between manufacturer and purchaser. 6The sample shall
28、 be examined in the un-etched condition. 7Cavitation acceptance levels shall be agreed between manufacturer and purchaser. 34 Grain size See EN 4400-2. 2 One sample per batch unless agreement is reached between the manufacturer and purchaser that the “capability clause“ may apply. 7 G 6 44 External
29、defects See EN 4400-2. 63 Superplastic forming capability See EN 4400-2. Superplastic forming capability shall be assessed by an elevated temperature tensile test. 6 Testing temperature: 520 C 540 C Soaking time: 15 min t 45 min Constant crosshead velocity: v = & Lstart where: Lstart= Lo+ 2R and str
30、ain rate, & 6.104s17 Elongation ALo% 300 68 Density See EN 4400-2. 7 2,56 kg/dm382 Batch uniformity See EN 4400-2. 5 T6 7 Electrical conductivity See EN 4400-2. 95 Marking inspection See EN 4400-2. 96 Dimensional inspection See EN 4400-2. 98 Notes aNa 10 ppm, Ca 120 ppm. bThis heat treatment and spe
31、cified minimum mechanical properties relate to release testing by the sheet manufacturer. The minimum mechanical properties may not necessarily be achieved in all parts of all superplastically formed components. 99 Typical use Superplastically formed components EN 3979:2005 6 100 Product qualificati
32、on See EN 4400-2. Qualification programme to be agreed between manufacturer and purchaser. blankBS EN 3979:2005BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards
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