1、AECMA STANDARDNORME AECMAAECMA NORMprEN 4800-4Edition P 1April 2002PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES - STANDARDIZATION (AECMA-STAN)Gulledelle 94 B-1200 BRUXELLES Tel. (+32) 2 775 8110 Fax. (+32) 2 775 8111ENGLISH VERSIONAerospace seriesTitanium and titanium alloysTechnica
2、l specificationPart 4: WireSrie arospatialeTitane et alliages de titaneSpcification techniquePartie 4: FilsLuft- und RaumfahrtTitan und Titanlegierungen KneterzeugnisseTechnische LieferbedingungenTeil 4: DrhteThis “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA-STA
3、N (TheEuropean Association of Aerospace Industries - Standardization). It is published on green paper for theneeds of the European Aerospace Industry. It has been technically approved by the experts of theconcerned Domain following member comments.Subsequent to the publication of this Prestandard, t
4、he technical content shall not be changed to anextent that interchangeability is affected, physically or functionally, without re-identification of thestandard.After examination and review by users and formal agreement of AECMA-STAN it will be submitted as adraft European Standard to CEN (European C
5、ommittee for Standardization) for formal vote.Nota - Extra copies can be supplied by B.N.A.E. Technopolis 54 - 199, rue Jean-Jacques Rousseau 92138 ISSY-LES-MOULINEAUX CEDEXEdition approved for publication2002-04-30Comments should be sent within six monthsafter the date of publication toAECMA-STANGu
6、lledelle 94B-1200 BRUXELLESMaterial DomainMr Evetts aecma 2002Page 2prEN 4800-4: 2002ContentsPage0 Introduction. 31 Scope 32 Normative references. 33 Definitions. 44 Wording of order . 45 Health and safety 46 Technical requirements. 5Table 1 Technical requirements for lines 1 to 29, where appropriat
7、e. 7Table 2 Technical requirements for lines 30 onwards, where appropriate . 16Page 3prEN 4800-4: 20020 IntroductionThis standard is part of the series of EN metallic material standards for aerospace applications. The generalorganization of this series is described in EN 4258.1 ScopeThis standard de
8、fines the requirements for the ordering, manufacture, testing, inspection and delivery oftitanium and titanium alloy bar and section. It shall be applied when referred to and in conjunction with theEN material standard unless otherwise specified on the drawing, order or inspection schedule.2 Normati
9、ve referencesThis 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 listedhereafter. For dated references, subsequent amendments to or revisions of any of
10、 these publications applyto this European Standard only when incorporated in it by amendment or revision. For undated referencesthe latest edition of the publication referred to applies.ISO 7800 Metallic materials Wire Simple torsion testISO 7801 Metallic materials Wire Reverse bend testISO 7802 Met
11、allic materials Wire Wrapping testISO 9649 Metallic materials Wire Reverse torsion testEN 2000 Aerospace series Quality assurance EN aerospace products Approval of the qualitysystem of manufacturersEN 2002-1 Aerospace series Test methods for metallic materials Part 1: Tensile testing at ambienttempe
12、rature 1)EN 2002-2 Aerospace series Test methods for metallic materials Part 2: Tensile testing at elevatedtemperature 1)EN 2002-5 Aerospace series Test methods for metallic materials Part 5: Uninterrupted creep andstress-rupture testing 1)EN 2002-8 Aerospace series Metallic materials Test methods P
13、art 8: Micrographic determinationof grain size 1)EN 2002-16 Aerospace series Metallic materials Test methods Part 16: Non-destructive testing Penetrant testing 1)EN 2003-9 Aerospace series Test methods Titanium and titanium alloys Part 9 : Determination ofsurface contamination 1)EN 2032-1 Aerospace
14、series Metallic materials Part 1: Conventional designationEN 2032-2 Aerospace series Metallic materials Part 2: Coding of metallurgical condition in deliveryconditionEN 2078 Aerospace series Metallic materials Manufacturing schedule, inspection schedule,inspection and test report Definition, general
15、 principles, preparation and approvalEN 2955 Aerospace series Recycling of titanium and titanium alloy scrapEN 3042 Aerospace series Quality assurance EN aerospace products Qualification procedureEN 3238 Aerospace series Test methods for metallic materials Shear test for rivet wires andrivets in met
16、allic material except aluminium and aluminium alloys 2)Page 4prEN 4800-4: 2002EN 3114-1 Aerospace series Test method Microstructure of ( + ) titanium alloy wrought products Part 1: General requirements 1)EN 3114-2 Aerospace series Test method - Microstructure of ( + ) titanium alloy wrought products
17、 Part 2: Microstructure of bars, sections, forging stock and forgings 1)EN 3683 Aerospace series Test methods Titanium alloy wrought products Determination ofprimary content Point count method and line intercept method 1)EN 3684 Aerospace series Test methods Titanium alloy wrought products Determina
18、tion of transus temperature Metallographic method 1)EN 3976 Aerospace series Titanium and titanium alloys Test method Chemical analysis for thedetermination of hydrogen content 1)EN 4258 Aerospace series Metallic materials General organization of standardization Linksbetween types of EN standards an
19、d their useEN 4259 Aerospace series Metallic materials Definition of general terms 1)EN 4268 Aerospace series Metallic materials Heat treatment facilities General requirements 2)TR 2410 Aerospace series Metallic materials Relationship between dimensional standards andmaterial standards 3)3 Definitio
20、nsGeneral definition, see EN 4259.4 Wording of orderThe order shall clearly indicate: quantities to be supplied; dates of delivery; material standard number; delivery condition and metallurgical code of products; dimensions and tolerances or reference to an appropriate dimensional standard; product
21、designation, when required; forwarding address; nature and type of packing, if required; definition and frequency of any special tests and their retest procedures, if required.5 Health and safetyProducts in the delivery condition shall fulfil the health and safety laws of the area of the country whe
22、n andwhere it is to be delivered.A product safety data sheet shall be available.1) Published as AECMA Prestandard at the date of publication of this standard2) In preparation at the date of publication of this standard3) Published as AECMA Technical Report at the date of publication of this standard
23、Page 5prEN 4800-4: 20026 Technical requirements6.1 GeneralThe product shall be manufactured in accordance with the requirements of the relevant material standardand the applicable requirements of this specification. A manufacturing schedule shall be established andapplied in accordance with EN 2078.
24、Product shall satisfy the requirements of the material standard and/or order and shall be free fromirregularities 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 alater stage,
25、to contain such defects shall be rejected.Unless otherwise specified, the requirements in tables 1 and 2 shall apply in conjunction with those of therelevant material standard. Table 1 relates to lines 1 to 29 (inclusive) of the material standard and table 2relates to lines 30 onwards in which the s
26、ub-line format is also used. Lines 2 to 98 may also be opened inline 100 if the material standard details specific qualification requirements. If a specific line number is notshown in tables 1 and 2, the requirement is stated in the material standard and/or order.The requirements of the order and/or
27、 material standard shall over-ride the requirements of the technicalspecification.6.2 Qualification requirementsQualification 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 qualificatio
28、n phase shall be run onthe first three batches, coming from three different ingots.6.3 Release requirements6.3.1 Release testsRelease 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 materialstanda
29、rd and/or order.The test samples shall be representative of the product.When required the manufacturer shall inform the purchaser of the planned dates for extraction of samplesand release testing in order that these operations may be witnessed.Tables 1 and 2 detail the requirements for each line of
30、the material standard. Unless otherwise specificallyrequested by the purchaser, a particular inspection and/or test for release shall be carried out ifcorresponding acceptance criteria and/or values are stated in the applicable material standard, but see also6.3.5 “Capability clause“.6.3.2 RetestsIf
31、 the test procedure or test piece preparation is faulty, testing shall be re-applied at the original frequencyafter rectification of the original cause of failure.When failure cannot be attributed to faulty testing, or test piece preparation, further test samples shall beselected at twice the origin
32、al frequency from the product, one of which shall be that on which the originalresults were obtained unless already withdrawn by the manufacturer after suitable identification of the causeof failure. If all retest results are satisfactory, the batch shall be accepted. If one or more tests areunsatis
33、factory, the batch shall be: rejected, or 100 % retested and the conforming products accepted, or partially or fully re-heat treated if heat treatment can rectify the cause of the failure and tested as acompletely new batch except for chemical composition, for which redetermination of hydrogen conte
34、ntis required . No product or test sample shall be re-heat treated more than twice.Page 6prEN 4800-4: 20026.3.3 RejectionAny failure to meet the requirements of the material standard shall be cause for rejection.6.3.4 Special testsSpecial tests may be required by the purchaser. In such cases, the na
35、ture of the test, method, frequency andtechnical requirements shall be specified on the order or inspection schedule and shall be mutually agreedby the manufacturer and purchaser.6.3.5 Capability clauseWhere capability clause is invoked and where sufficient statistical evidence exists, the test shal
36、l not becarried out (unless specifically requested by the purchaser). However, this in no way reduces the obligationsof the manufacturer to fulfil the requirements. If subsequent testing indicates that the product does notcomply with the requirements, the batch shall be rejected.If sufficient statis
37、tical evidence does not exist, the test shall be carried out at a frequency agreed betweenthe manufacturer and the purchaser.6.3.6 Statistical process controlReduction in the extent of release testing, other than that defined in 6.3.5 above, may be negotiated with thepurchaser on the basis of approp
38、riate statistical process control and/or statistical data.6.3.7 Inspection and test reportThe manufacturer shall furnish, with each delivery, a report conforming to the requirements of EN 2078stating the following: manufacturers name and address and, if appropriate, identification of the plant; orde
39、r number; material standard number; delivery 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 TraceabilityE
40、ach product shall be traceable to the cast, production batch and/or heat treatment batch at all stages ofmanufacture, testing and delivery.Page 7prEN 4800-4: 2002Table 1 Technical requirements for lines 1 to 29, where appropriateFrequency of testingMaterial standard linereferenceNo TitleRequirements
41、Qualification Release1 Material designation See EN 2032-1. The test samples used for chemical analysis shall be representative of the product and shall be taken fromlocation corresponding to top and bottom of each ingot produced after the final melting stage. The methodof chemical analysis shall be
42、at the discretion of the manufacturer unless otherwise stated in the materialstandard or order. In cases of dispute, the method of chemical analysis shall be agreed between themanufacturer and purchaser preferably using existing chemical analysis standards. The measuredchemical composition shall be
43、stated on the certificate of conformance.2 per cast 2 per cast2 Chemical compositionSpecific requirements for hydrogen content:The hydrogen content shall be determined on each batch in the delivery condition in accordance withEN 3976.1 per batch 1 per batch3 Method of melting Method of melting consi
44、sts of multiple melt using combination of non-consumable electrode, consumableelectrode and cold hearth (electron beam or plasma arc) melting practices. Some of the followingrequirements are dependent on the actual melting route.NOTE Non-consumable electrode melting should be used for consolidation
45、purpose only.1 Raw material:Raw materials shall be purchased only from suppliers approved by the manufacturer and registered inhis list of approved suppliers.Approval of suppliers shall be made in accordance with written procedures contained within the qualityassurance system of the manufacturer.Tit
46、anium sponge and alloying elements:The requirements shall be specified by the manufacturer who shall also establish the followingprocedures for the evaluation and acceptance testing of each batch. titanium sponge: manufacturing method, level of impurities, particle size, freedom from surfacecontamin
47、ation ; alloying elements: chemical composition including level of impurities, particle size, freedom fromforeign particles.Recycling of scrap:See EN 2955.The categories and sub-categories of scrap which may be used by the manufacturer are given in thefollowing table. continuedPage 8prEN 4800-4: 200
48、2Table 1 Technical requirements for lines 1 to 29, where appropriate (continued)Frequency of testingMaterial standard linereferenceNo TitleRequirementsQualification Release Scrap categories andsub-categories (see EN 2955)Melting methodwhich includes cold hearth VAR-only melt method1 allowed allowed2
49、 allowed allowed3 allowed allowed4.1 allowed a allowed a4.2.1 allowed a b allowed a4.2.2 allowed a b not allowed a4.3.1 allowed a b allowed a4.3.2 allowed a b not allowed a5.1 allowed allowed5.2 not allowed not allowed6 not allowed not alloweda Only turnings produced by the melter shall be used, unless otherwise agreed by the purchaser.b X-ray inspection not required.3 Method of melting(continued)F
