BS EN 586-1-1998 Aluminium and aluminium alloys - Forgings - Technical conditions for inspection and delivery《铝和铝合金 锻件 检验和交付技术状态》.pdf

1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 586-1 : 1998 The Eu

2、ropean Standard EN 586-1 : 1997 has the status of a British Standard ICS 77.150.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Aluminium and aluminium alloys Forgings Part 1. Technical conditions for inspection and deliveryThis British Standard, having been prepared under

3、the direction of the Sector Board for Engineering, was published under the authority of the Standards Board and comes into effect on 15 February 1998 BSI 1998 ISBN 0 580 28697 5 BS EN 586-1 : 1998 Amendments issued since publication Amd. No. Date Text affected National foreword This British Standard

4、 is the English language version of EN 586-1 : 1997. The UK participation in its preparation was entrusted to Technical Committee NFE/35/5, Wrought aluminium and aluminium alloys, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any

5、 enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Th

6、e British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. Compli

7、ance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This 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.CEN European Committee for Standardization Comite Europe en de

8、 Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 586-1 : 1997 E EUROPEAN STANDARD EN 586-1 NORME EUROPE ENNE EUROPA ISCH

9、E NORM August 1997 ICS 77.150.10 Descriptors: Aluminium, aluminium alloys, wrought products, forgings, delivery condition, tests, quality control, quality certificate English version Aluminium and aluminium alloys Forgings Part 1: Technical conditions for inspection and delivery Aluminium et alliage

10、s daluminium Pie ces forge es Partie 1: Conditions techniques de contro le et de livraison Aluminium und Aluminiumlegierungen Schmiedestu cke Teil 1: Technische Lieferbedingungen This European Standard was approved by CEN on 1997-07-16. CEN members are bound to comply with the CEN/CENELEC Internal R

11、egulations which stipulate the 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. Thi

12、s European Standard exists in 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 th

13、e national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 586-1 : 1997 BSI 1998 Foreword This European Standard has been prepa

14、red by Technical Committee CEN/TC 132, Aluminium and aluminium alloys, the Secretariat of which is held by AFNOR. 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 February 1998, and conflicting nat

15、ional standards shall be withdrawn at the latest by February 1998. Within its programme of work, Technical Committee CEN/TC 132 entrusted CEN/TC 132/WG 3, Forgings and cast and wrought forging stock, to prepare the following standard: EN 586-1 Aluminium and aluminium alloys Forgings Part 1: Technica

16、l conditions for inspection and delivery This standard is part of a set of three standards. The other standards deal with: EN 586-2 Aluminium and aluminium alloys Forgings Part 2: Mechanical properties and additional property requirements EN 586-3 Aluminium and aluminium alloys Forgings Part 3: Tole

17、rances on dimensions and form According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemb

18、ourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions 3 4 Orders or tenders 3 5 Requirements 3 6 Test method 4 7 Inspection documents 5 8 Marking 6 9 Packaging 6 10 Arbitration 6Page 3 EN 586-

19、1 : 1997 BSI 1998 1 Scope This part of EN 586 specifies the technical conditions for inspection and delivery of aluminium and aluminium alloy forgings for general engineering applications. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other

20、 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 revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or r

21、evision. For undated references the latest edition of the publication referred to applies. EN 515 Aluminium and aluminium alloys Wrought products Temper designations EN 573-3 Aluminium and aluminium alloys Chemical composition and form of wrought products Part 3: Chemical composition EN 586-2 Alumin

22、ium and aluminium alloys Forgings Part 2: Mechanical properties and additional property requirements prEN 586-3 Aluminium and aluminium alloys Forgings Part 3: Tolerances on dimensions and form EN 10002-1 Metallic materials Tensile testing Part 1: Method of test (at ambient temperature) EN 10204 Met

23、allic products Types of inspection documents 3 Definitions For the purposes of this European Standard, the following definitions apply. 3.1 forging Wrought products formed by hammering or pressing, usually when hot, between open dies (hand forging) or closed dies (drop or die forging). 3.2 cast Quan

24、tity of product cast simultaneously from the same melt. The different ingots of a cast may have different dimensions. NOTE. This term is not used for castings. 3.3 inspection lot Consignment, or part thereof, submitted for inspection, comprising products of the same grade or alloy, form, temper, siz

25、e, shape, thickness or cross section and processed in the same manner. 3.4 sample One or more products taken from an inspection lot. 3.5 specimen One or more pieces taken from each product in the sample for the purpose of producing test pieces. 3.6 test piece Piece taken from each specimen and suita

26、bly prepared for test. 3.7 test Operation to which the test piece is subjected in order to measure or classify a property. 4 Orders or tenders The order or tender shall define the product required and shall contain the following details: a) the form of the product (die forging, hand forging, etc.);

27、b) the type and temper condition of the material: the designation of the aluminium and aluminium alloy; the temper condition for delivery in accordance with EN 515 (as-forged or heat treated) and, if different, the temper condition for use; c) the number of this European Standard; d) the dimensions

28、and shape of the product (thickness, width, length, diameter) and/or reference to a drawing defining the product; e) quantity, and, where applicable, quantity tolerances (see 5.7); f) any requirements for inspection documents; g) any special requirements agreed between purchaser and supplier. 5 Requ

29、irements 5.1 Production and manufacturing processes The production and manufacturing processes shall be left to the discretion of the producer. Unless it is explicitly stated otherwise in the order, no obligation shall be placed on the producer to use the same processes for subsequent and similar or

30、ders. 5.2 Quality control The supplier shall be responsible for the performance of all inspection and tests required by the relevant European Standard or specification, prior to shipment of the product. If the purchaser wishes to inspect the product at the suppliers works, he shall notify the suppli

31、er at the time of placing the order. 5.3 Chemical composition The chemical composition shall comply with the requirements given in EN 573-3. If the purchaser requires content limits for elements not specified in the above standard, these limits shall be stated on the order, after agreement between p

32、urchaser and supplier.Page 4 EN 586-1 : 1997 BSI 1998 5.4 Mechanical properties The mechanical properties shall comply with those given in EN 586-2. 5.5 Surface finish Unless otherwise agreed at the time of ordering, forgings shall be cleaned by pickling in an aqueous solution of NaOH prior to surfa

33、ce inspection. The product shall be free from defects detrimental to its use. Whilst an operation designed to mask a defect shall not be permitted, the elimination of a superficial surface defect shall be permissible, provided that the dimensional tolerances continue to be observed. 5.6 Tolerances o

34、n dimensions and form Tolerances on dimensions and form shall comply with prEN 586-3. NOTE. The purchaser can only reject those products having dimensions not complying with the specified tolerances. 5.7 Quantity tolerance The quantity tolerance shall be 10 % unless otherwise agreed between purchase

35、r and supplier. 5.8 Internal quality The forgings shall be free from internal defects which may be detrimental to their use. If special inspections or tests are required, these shall be agreed between purchaser and supplier. 5.9 Special properties Additional property requirements in respect of hardn

36、ess and electrical conductivity tests shall be met in accordance with EN 586-2 when agreed between purchaser and supplier. 6 Test method 6.1 Sampling 6.1.1 Specimens for chemical analysis The specimens for chemical analysis shall be taken at the time of casting. Their shape and condition of producti

37、on (mould design, cooling rate, mass, etc.) shall be so designed that their composition is homogeneous and be suitable for the method of analysis. At least one specimen shall be taken to represent each cast. An overcheck on chemical analysis can be undertaken at the discretion of the forging manufac

38、turer on a sample selected to represent the inspection lot. 6.1.2 Specimens for mechanical testing 6.1.2.1 Location and size Specimens shall be taken from samples in such a way that it is possible to orientate the test pieces in relation to the product, as specified in 6.1.2.2. The specimens shall b

39、e sufficiently large to allow manufacture of the test pieces necessary to carry out the required tests, and shall include sufficient metal to allow manufacture of test pieces for any retests. 6.1.2.2 Orientation of specimens Specimens shall be taken in the longitudinal direction. If the dimension is

40、 insufficient to obtain a longitudinal specimen, the specimens shall be taken in the transverse direction. 6.1.2.3 Identification of specimens Each specimen shall be marked in such a manner that, after removal, it is still possible to identify the product from which it was taken, and, if required, i

41、ts location and orientation. If, during the course of subsequent operations, removal of the markings cannot be avoided, new markings shall be made before the originals are removed. 6.1.2.4 Preparation of specimens Specimens shall be taken from the sample after completion of all the mechanical and he

42、at treatments that the product has to undergo before delivery and which may influence the mechanical properties of the metal. In cases where this is not possible, the sample or specimens may be taken at an earlier stage, but they shall be submitted to the same treatment as that to which it is intend

43、ed to submit the product concerned. Specimens of heat treatable material ordered for supply in an alternative temper condition shall be heat treated in accordance with the recommended heat treatment practice for the temper condition of final use. Specimens of heat treatable material supplied in the

44、heat treated condition shall be heat treated with the material they represent. Cutting shall be carried out in such a manner that it does not change the characteristics of the part of the specimen from which the test pieces are to be prepared. Thus, the dimensions of the specimens shall provide an a

45、dequate machining allowance to permit removal of the zone affected by cutting. Specimens shall not be further heat treated or mechanically worked (except for machining) before being tested. 6.1.2.5 Number of specimens The minimum rate of sampling shall be as follows: a) for forgings weighing up to 2

46、 kg, one specimen shall be taken for each inspection lot of 1000 kg or part thereof; b) for forgings weighing greater that 2 kg up to and including 10 kg, one specimen shall be taken for each inspection lot of 2000 kg or part thereof; c) for forgings weighing greater than 10 kg, one specimen shall b

47、e taken for each inspection lot of 3000 kg or part thereof. 6.1.3 Test pieces for mechanical testing 6.1.3.1 Selection Test pieces shall be selected from one of the following specimen types: a) unforged wrought forging stock from which the forgings were produced; b) a prolongation of the forging tak

48、en to represent the inspection lot; c) an actual forging taken from the inspection lot.Page 5 EN 586-1 : 1997 BSI 1998 6.1.3.2 Type and location Where section thicknesses permit, a round or flat test piece shall be prepared. The longitudinal axis of the test piece shall be located at mid-section thi

49、ckness. 6.1.3.3 Identification of test pieces Each test piece shall be marked in such a manner that it is possible to identify the inspection lot from which it was taken, and, if required, its location and orientation in the product. If a test piece is marked by stamping, this shall not be in a place or manner which may interfere with subsequent testing. Where it is not convenient to mark a test piece, an identification tag may be attached. 6.1.3.4 Machining Any machining necessary shall be carried