1、STD-BSI BS EN bOV-Z-ENGL 1777 = 1b24bb7 Ob33177 337 BRITISH STANDARD Aluminium and aluminium alloys - Cast forging stock Part 2. Tolerances on dimensions and form The European Standard EN 604-2 : 1997 has the status of a Brihh Standard ICs 77.160.10 BS EN 604-2 : 1997 NO COPYING WITHOUT BSI PERMISSI
2、ON EXCEPT AS PERMITTED BY COPYRIGHT LAW -_ _ _ _I_ 1 STD.BSI BS EN bq-2-ENGL 1777 m 1b24bb7 Ob33198 275 m BS EN 6042 : 1997 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee NFE/35, Light metals and their alloys, upon which
3、 the following bodies were represented Aluminium Federation Aiuminium Stockholders Association Association of Light Alloy Refiners Limited Magnesium Industry Council Ministry of Defence Society of Motor Manufacturers and Mers LM. This British Standard, having been prepared under the direction of the
4、 Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 May 1997 O BSI 1997 The following bodies were also represented in the Lafting of the standard, throub subcommittees and panels: Association of British Welded Aluminium Tube Makers Institut
5、ion of Structural Engineers Metal Packaging Manufacturers Association Amendments issued since publication I Date Amd. No. I Text affected The following BSI references relate to the work on this standard Committee reference NFEY35 Draft for comment 91/49170 DC ISBN O 680 27426 8 STDSBSI BS EN bO4-2-E
6、NGL 1777 1b2LibbS Ob33177 101 W BS EN 604-2 : 1997 Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 604-2 3 O BSI 1997 i STD-BSI BS EN bO9-2-ENGL 1997 m ZbZqbb9 0b33200 753 m BS EN 604-2 : 1997 National foreword This Part of BS EN 604 has been prepar
7、ed by Technical Committee NFEB5 and is the English language version of EN 604-2 : 1997 Aluminium and aluminium allo ys - Cast forging stock - Part 2 : Tolerances on dimmswns and form published by the European Committee for Standardization (CEN). This British Standard has been prepared under the dire
8、ction of the Engineering Sector Board and is the English ianguage version of EN 604-2 : 1997, published by the European Committee for Standardjzation (CEN). Cross-references Publication referred to EN 573-3 : 1995 Corresponding British Standard BS EN 573 Aluminium and aluminium alloys - chemical com
9、position and form of wrought products Part 3 : 1995 3wmical composition BS EN 604 Aluminium and aluminium alloys - Cast forging stock Part 1 : 1997 Technical conditim for inspection and delivery EN 6041 : 1997 Compliance with a British Standard does not of itself confer immunity from legal obligatio
10、ns. Summary of pages title page, pages 2 to 4, an inside back cover and a back cover. This document comprises a front cover, an inside front cover, pages i and ii, the EN O 11 O BSI 1997 EUROPEAN STANDARD NORME EUR0PEE”E O EuROP 77.140.90 Descriptors: Aluminium products, aluminium alloys, forgings,
11、dimensional tolerances, form tolerances English version AKWIMUIII and aluminium alloys - Cast fm stock - Part 2: Tolerances on dimensions and form Aluminium et -es daluminium - Produits couls et destiys la forge - Partie 2: Iblrances sur dimensions et forme Aluminium und Aluminimdegierungen - Gegoss
12、enes Schmiedevormaterial- Teil 2: Grenzab- und FormtoleranZen 0 This European Standard was approved by CEN on 1996-1219. CEN members are bound to comply with the CEN/CENELEC Intrnai Regulations which stipulate the conditions for giving this European Standard the status of a national standard without
13、 any alteration. Up-to-date lists and bibiiographicai 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 versions (English, French, German). A version in any other language made
14、 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, ItaWiza
15、tions of the following countries are bound to implement this European Standard Austria, Belgium, Denmark, Fhland, France, Gemq, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norwax Portugal, Spain, Sweden, Switzerland and the United Kingdom. O BSI 1997 STD-BSI BS EN b04-2-ENGL 1777 Lb24b
16、b Ob33203 4b2 Page 3 EN 604-2 : 1997 1 Scope This Part of this standard specifies the tolerances on dimensions and form of cast aluminium and aluminium alloy forging stock for general engineering applications. The chemical compositions for these alloys are specified in EN 573-3. The technical condit
17、ions for inspection and delivery of these products are specified in EN 604-1. 2 Normative references This 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
18、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 edition of the publication referred to applies. EN 573-3 Aluminium a
19、nd aluminium alloys - %ernkd composition and form of Part 3: %ernkal composition EN 604-1 Aluminium and aluminium - -: mm for ingot diameters greater than 200 mm and not greater than 400 mm; - -4 mm for ingot diameters greater than 400 mm; - -2 mm for all ingot diameters. b) scalped: O BSI 1997 3.2.
20、1.2 Length The measurement shall be taken overall. The limit deviations on the nominal length shall be: - f 3 mm for ingot lengths not greater than i200 mm; - f 15 mm for ingot lengths greater than 1200 mm. 3.2.2 Rectangular ingots (scalped) 3.2.2.1 Width The measurement shaU be taken overail. The l
21、imit deviations on the nominal width shall be: - +o0 mm for all ingots widths. 3.2.2.2 Thkkmss The measurement shall be taken at the two sawn ends on both sides of the ingot. The limit deviations on the nominal thickness shall be: - 5 mm for all ingot thicknesses. 3.2.2.3 Length The measurement shal
22、l be taken overall. The limit deviations on nominal length shall be: 3.3 Tolerances on form 3.3.1 Round ingots (as cast or scalped) 3.3.1.1 PerpendicuEarity Sawn ends of ingots shali be perpendicular to the longitudinal axis to (90 f i)“. 3.3.1.2 Straightness (as cast ingot onLy) The deflection meas
23、ured on any generating line of the ingot shall be less than 3 mm per metre. The total deviation over the full length of the ingot shall not exceed 15 mm. 3.3.2 Rectangular ingots (scalped) 3.3.2 .1 Perpendicularity Sawn faces of ingots shall be perpendicular to the longitudinal or transverse axis, a
24、s applicable, 3.3.2.2 Flatness The deflection measured in any direction on any face of the ingot shall be less than 2 mm per metre. - f 25 mm for all ingot lengths. to (90 f i)“. List of references See national foreword. O BSI 1997 BS EN 604-2 : 1997 BSI 389 Chiswick High Road London w4 4AL BSI - Br
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