1、BRITISH STANDARDBS EN 683-3:2006Aluminium and aluminium alloys Finstock Part 3: Tolerances on dimensions and formThe European Standard EN 683-3:2006 has the status of a British StandardICS 77.150.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g5
2、9g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 683-3:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2007 BSI 2007ISBN 978 0 580 50130 2National forewordThis British Sta
3、ndard was published by BSI. It is the UK implementation of EN 683-3:2006. It supersedes BS EN 683-3:1997 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee NFE/35, Light metals and their alloys.A list of organizations represented on NFE/35 can be obtained
4、 on request to its secretary.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 cannot confer immunity from legal obligations. Amendments issued since publicationAmd. No. Date C
5、ommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 683-3December 2006ICS 77.150.10 Supersedes EN 683-3:1996 English VersionAluminium and aluminium alloys - Finstock - Part 3: Toleranceson dimensions and formAluminium et alliages daluminium - Bandes pourchangeurs thermiques - Partie 3 : Tolranc
6、es surdimensions et formeAluminium und Aluminiumlegierungen - Vormaterial frWrmeaustauscher (Finstock) - Teil 3: Grenzabmae undFormtoleranzenThis European Standard was approved by CEN on 25 November 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the co
7、nditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three
8、official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria,
9、 Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDAR
10、DIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 683-3:2006: EEN 683-3:2006 (E) 2 Contents Page Foreword3
11、1 Scope 4 2 Normative references 4 3 Tolerances on dimensions and form.4 3.1 Gauge4 3.2 Width .5 3.3 Lateral bow .6 Tables Table 1 Tolerances on average gauge for finstock 5 Table 2 Density.5 Table 3 Tolerance on width for finstock 6 Table 4 Maximum value of lateral bow.7 Figures Figure 1 Measuremen
12、t of lateral bow: method a) .6 Figure 2 Measurement of lateral bow: method b).7 EN 683-3:2006 (E) 3 Foreword This document (EN 683-3:2006) has been prepared by Technical Committee CEN/TC 132 “Aluminium and aluminium alloys”, the secretariat of which is held by AFNOR. This European Standard shall be
13、given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2007, and conflicting national standards shall be withdrawn at the latest by June 2007. This document supersedes EN 683-3:1996. Within its program of work, Technical Committee
14、 CEN/TC 132 entrusted CEN/TC 132/WG 6 “Foil and finstock“ to revise EN 683-3:1996. The following modifications have been made: subclause 3.1.1: the text has been amended; subclause 3.1.2: title is changed alloys EN AW-6060 and EN AW-6951 have been deleted in Table 2; subclause 3.3: lateral bow is ap
15、plicable to thickness greater than 130 m. Test procedures have been amended and acceptance criteria have been edited. EN 683 comprises the following parts under the general title “Aluminium and aluminium alloys Finstock“: Part 1: Technical conditions for inspection and delivery Part 2: Mechanical pr
16、operties Part 3: Tolerances on dimensions and form Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. CEN/TC 132 affirms it is its policy that in the ca
17、se when a patentee refuses to grant licences on standardised standard products under reasonable and not discriminatory conditions, then this product shall be removed from the corresponding standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the follow
18、ing 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, Portugal, Romania, Slovakia, Slovenia, Spain
19、, Sweden, Switzerland and United Kingdom. EN 683-3:2006 (E) 4 1 Scope This document specifies the tolerances on dimensions and form for wrought aluminium and wrought aluminium alloy finstock supplied in accordance with EN 683-1. 2 Normative references The following referenced documents are indispens
20、able for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Not applicable 3 Tolerances on dimensions and form 3.1 Gauge 3.1.1 Single gauge measurement The t
21、olerance on gauge for a single measurement for finstock shall be 6 %. Gauge can be measured with any of the usual precision instruments capable of assessing finstock thickness but, in the event of a dispute, the weighing method shall be used as a referee procedure. Description of the weighing method
22、: From the test sample, cut an area (A) of approximately 1 dm2either square or circular. Degrease the sample if necessary in a suitable solvent and weigh on a laboratory balance with an accuracy of equal to or better than 1 mg. The dimensions of the sample (sides of square or diameter of circle) sha
23、ll be measured to an accuracy of equal or better than 0,1 mm. Gauge shall be calculated by use of the formula: DAME=10where: E is the gauge in micrometres; M is the mass in milligrams; D is the density as defined in Table 2, in grams per cubic centimetre; A is the area in square decimetres. 3.1.2 Av
24、erage gauge evaluation The tolerance on average gauge is specified in Table 1. EN 683-3:2006 (E) 5 Table 1 Tolerances on average gauge for finstock Lot size kg Tolerance % 3 000 5 3 000 to 10 000 4 10 000 3 Average gauge may be obtained by either: a) Calculation Calculation of average gauge by this
25、method requires an accurate knowledge of length and net weight of the reels. The mean gauge shall be calculated by the formula: DWLPEm=610where: Emis the average gauge in micrometres; P is the net mass in kilograms; L is the length in metres; W is the width in millimetres; D is the density as define
26、d in Table 2, in grams per cubic centimetres. Table 2 Density Density Material g/cm3EN AW-1050A 2,70 EN AW-1100 2,71 EN AW-1200 2,71 EN AW-3003 2,73 EN AW-3103 2,73 EN AW-5005 2,69 EN AW-6063 2,70 EN AW-8006 2,74 EN AW-8011A 2,71 EN AW-8079 2,71 b) Averaging spot measurements The method shall be agr
27、eed between purchaser and supplier. 3.2 Width The tolerance on width is specified in Table 3. EN 683-3:2006 (E) 6 Table 3 Tolerance on width for finstock Dimensions in millimetres Width Toleranceover up to Symmetrical Only plus Only minus - 100 0,2 4,0 0 +0 4,0 - 100 350 0,3 6,0 0 +0 6,0 - 350 1 000
28、 0,5 0,1 0 +0 ,01 - 1 000 - 1,0 0,2 0 +0 ,02 - Unless otherwise specified in the order, the type of tolerance is at the discretion of the supplier. 3.3 Lateral bow 3.3.1 Test procedure Lateral bow shall be measured on finstock with a width greater than 100 mm and a thickness greater than 130 m; on n
29、arrow width finstock (width up to 100 mm), this measurement shall be carried out only if required by the purchaser. One of the following test procedures shall be used. a) Take a sample from the first set of slit reels produced from the parent coil. Cut one 2 000 mm length from that sample. Measure t
30、he lateral bow called a against a straight edge as shown on Figure 1 on length of 2 000 mm. Dimensions in millimetres Figure 1 Measurement of lateral bow: method a) b) Take a sample from the first set of slit reels produced from the parent coil. Cut two 1 000 mm lengths from that sample. Place the t
31、wo lengths back to back on a flat surface. Measure the maximum distance called b between the two lengths as shown in Figure 2. EN 683-3:2006 (E) 7 Dimensions in millimetres Key 1 Side edges Figure 2 Measurement of lateral bow: method b) 3.3.2 Test results The lateral bow is defined as the distance a
32、 according to method a. The lateral bow is defined as the distance b according to method b 3.3.3 Acceptance criteria The maximal lateral bow shall not exceed a certain value as given in Table 4. Table 4 Maximum value of lateral bow Dimensions in millimetres Method a Method b Width a for 2 000 b for
33、1 000 over up to max. max. 100 300 8 16 300 500 6 12 500 1 000 5 10 1 000 - 4 8 EN 683-3:2006 (E) 8 Bibliography 1 EN 683-1, Aluminium and aluminium alloys - Finstock - Part 1: Technical conditions for inspection and delivery blankBS EN 683-3:2006BSI389 Chiswick High RoadLondonW4 4ALBSI British Stan
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