1、AECMA STANDARDNORME AECMAAECMA NORMprEN 3879Edition P 2April 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 8111Supersedes edition P 1January 1996ENGLISH VERSIONAerospace seriesMeta
2、llic materialsFiller metal for weldingTechnical specificationSrie arospatialeMatriaux mtalliquesMtaux dapport de soudageSpcification techniqueLuft- und RaumfahrtMetallische WerkstoffeSchweisszusatzTechnische LieferbedingungenThis “Aerospace Series“ Prestandard has been drawn up under the responsibil
3、ity of AECMA-STAN (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 thi
4、s Prestandard, the 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
5、 CEN (European Committee 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 publicatio
6、n toAECMA-STANGulledelle 94B-1200 BRUXELLESMaterial DomainMr Evetts aecma 2002Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 2prEN 3879: 2002Cont
7、entsPage0 Introduction. 31 Scope 32 Normative references. 33 Terms and definitions 44 Wording of order . 45 Health and safety 46 Technical requirements. 4Table 1 Technical requirements for lines 1 to 29, where appropriate. 7Table 2 Technical requirements for lines 30 onwards, where appropriate . 13C
8、opyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 3prEN 3879: 20020 IntroductionThis standard is part of the series of EN metallic material standards
9、 for aerospace applications. The generalorganization of this series is described in EN 4258.1 ScopeThis standard defines the requirements for the ordering, manufacture, testing, inspection and delivery of allforms of filler metal. It shall be applied when referred to and in conjunction with the EN m
10、aterial standardunless otherwise specified on the drawing, order or inspection schedule.2 Normative 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 public
11、ations are listedhereafter. For dated references, subsequent amendments to or revisions of any of 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.EN 759 Welding co
12、nsumables Technical delivery conditions for welding filler metals Type ofproduct Dimensions Tolerances and markingEN 2000 Aerospace series Quality assurance EN aerospace products Approval of the qualitysystem of manufacturersEN 2032-1 Aerospace series Metallic materials Part 1: Conventional designat
13、ionEN 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 principles, preparation and approvalEN 3042 Aerospace
14、series Quality assurance EN aerospace products Qualification procedureEN 4058 Aerospace series Filler rods and filler wires for welding in titanium and titanium alloys Diameter 0,5 mm D 5,0 mm DimensionsEN 4059 Aerospace series Filler rods and filler wires for welding in steel Diameter 0,5 mm D 5,0
15、mm DimensionsEN 4060 Aerospace series Filler rods and filler wires for welding in heat resisting alloys -Diameter 0,5 mm D 5,0 mm DimensionsEN 4258 Aerospace series Metallic materials General organization of standardization Linksbetween types of EN standards and their useEN 4259 Aerospace series Met
16、allic materials Definition of general terms 1)EN 4268 Aerospace series Metallic materials Heat treatment facilities General requirements 2)TR 4607 Aerospace series Weldability test for weld filler metal wire 3)1) Published as AECMA Prestandard at the date of publication of this standard2) In prepara
17、tion at the date of publication of this standard3) In preparation as an AECMA Technical Report at the date of this standardCopyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without l
18、icense from IHS-,-,-Page 4prEN 3879: 20023 Terms and definitionsFor the purposes of this standard, the following terms and definitions apply:Definition of general terms, see EN 4259.3.1filler metal for weldingis supplied in the form of: WireWrought product of uniform solid section supplied in coil o
19、r on spools. RodWire supplied in straight cut lengths.4 Wording of orderThe order shall clearly indicate: quantities to be supplied; dates of delivery; material standard number; marking method; delivery condition; dimensions and tolerances or reference to an appropriate dimensional standard; forward
20、ing address; nature and type of packing, if required; definition and frequency of any special tests and their retest procedures, if required.5 Health and safetyThe product in the delivery condition shall fulfil the health and safety laws of the area of the country whenand where it is to be delivered
21、A product safety data sheet shall be available.6 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
22、 accordance with EN 2078.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 withstanding previous acceptance complying with this material standard, any product that is
23、found, at alater stage, to contain such defects shall be rejected. Instructions for the use of the material standard arecontained in EN 4258.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
24、 1 to 29 (inclusive) of the material standard and table 2relates to lines 30 onwards in which the sub-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, t
25、he requirement is stated in the material standard and/or order.Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 5prEN 3879: 20026.2 Qualification r
26、equirementsQualification 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 onthe first 3 batches.6.3 Release requirements6.3.1 Release testsRelease testing
27、 shall be the responsibility of the manufacturer.The purchaser reserves the right to perform any of the inspections and/or tests required by the materialstandard and/or order.The test samples shall be representative of the product.When required the manufacturer shall inform the purchaser of the plan
28、ned 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 the material standard. Unless otherwise specificallyrequested by the purchaser, a particular inspection and/or test for release shall be carr
29、ied 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 the test procedure or test piece preparation is faulty, testing shall be re-applied at the original frequencyafter rectification of the orig
30、inal cause of failure.When failure cannot be attributed to faulty testing, or test piece preparation, further test samples shall beselected at twice the original frequency from the product, one of which shall be that on which the originalresults were obtained unless already withdrawn by the manufact
31、urer after suitable identification of the causeof failure. If all retest results are satisfactory, the batch shall be accepted. If one or more tests areunsatisfactory, the batch shall be: rejected, or 100 % retested and the conforming lengths accepted, or partially or fully re-heat treated if heat t
32、reatment can rectify the cause of the failure and tested as acompletely new batch except for chemical composition. No product or test sample shall be re-heattreated more than twice.6.3.3 RejectionAny failure to meet the requirements of the material standard shall be cause for rejection.6.3.4 Special
33、 testsSpecial tests may be required by the purchaser. In such cases, the nature of the test, method, frequency andtechnical requirements shall be specified on the order or inspection schedule and shall be mutually agreedby the manufacturer and the purchaser.6.3.5 Capability clauseWhere the capabilit
34、y clause is invoked and where sufficient statistical evidence exists, the test need 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
35、 notcomply with the requirements, the batch shall be rejected.If sufficient statistical evidence does not exist, the test shall be carried out at a frequency agreed betweenthe manufacturer and purchaser.Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under l
36、icense with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 6prEN 3879: 20026.3.6 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 appropriate
37、 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; order num
38、ber; material standard number; delivery condition and metallurgical code of the product; description of supplies; quantity and dimensions; cast and batch number; results of the mandatory tests, re-tests and chemical analysis; inspection stamp.6.4 TraceabilityEach product shall be traceable to the ca
39、st production batch and/or heat treatment batch at all stages ofmanufacture and delivery.Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 7prEN 387
40、9: 2002Table 1 Technical requirements for lines 1 to 29, where appropriateFrequency of testingMaterial standard linereferenceNo TitleRequirementsQualification Release1 Material designation See EN 2032-1. 2 Chemical composition The chemical composition shall comply with the requirements of the releva
41、nt material standard.The chemical composition of each cast shall be determined.Additionally for titanium and titanium alloy filler metal the hydrogen (H2) content shall be determined.Samples for analytical purposes shall be representative of the cast.The method of analysis shall be at the option of
42、the manufacturer. In cases of dispute the method set out inthe relevant ISO standard shall be used. If no ISO standard exists, an analytical method, that can becalibrated to an agreed reference standard, shall be used.Elements that are not specified in the material standards shall not be intentional
43、ly added to the alloy.2 per cast 1 per cast3 Method of melting As stated in the material standard. 4.1 Form Wire and rod 4.2 Method of production Drawing, extrusionIf required by the material standard, filler metal in ferritic steel shall be provided with a copper coating,uniformly and evenly deposi
44、ted. The surface shall be cleaned before coating to obtain a good bond.Wire shall be wound on spools in individual layers in such a way that kinks, waves and sharp bends areavoided. The start and end of a wire shall be secured in place. Wire should readily unwind withoutoverlapping or wedging. Wire
45、on each spool shall be of continuous length and from the same cast. 4.3 Limit dimension(s) Minimum and/or maximum size of the product expressed as a nominal diameter, D, of wire or rod. 5 Technical specification Reference to this technical specification EN 3879. In cases of conflict, the requirement
46、s of the materialstandard shall take precedence over those of this technical specification. continuedCopyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Pa
47、ge 8prEN 3879: 2002Table 1 Technical requirements for lines 1 to 29, where appropriate (continued)Frequency of testingMaterial standard linereferenceNo TitleRequirementsQualification Release6.1 Delivery condition The product shall be supplied in the delivery condition specified in this line in the m
48、aterial standard and/oras stated on the order.Marking:The marking shall be durable under the normal conditions of use, storage, handling and shipment.Each rod package shall bear an adhesive label, bearing the following identification marking: material standard number; delivery condition code; batch number; manufacturers name and, when appropriate, identification of the plant; diameter of the wire rod; weight; inspectors stamp; marking of rods.Rods shall be individually marked with the material standard number by one of the following methods asdescribed below:a) adhesive labels
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