1、BSI Standards PublicationBS EN ISO 20482:2013Metallic materials Sheet andstrip Erichsen cupping testBS EN ISO 20482:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO20482:2013. It supersedes BS EN ISO 20482:2003 which is withdrawn.The UK participation in
2、its preparation was entrusted to TechnicalCommittee ISE/101/2, Ductility testing.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its corr
3、ectapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 82942 0ICS 77.040.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy
4、 Committee on 30 November 2013.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 20482 November 2013 ICS 77.040.10 Supersedes EN ISO 20482:2003English Version Metallic materials - Sheet and strip - Erichsen cupping test (ISO 20482:2013) Mat
5、riaux mtalliques - Tles et bandes - Essai demboutissage Erichsen (ISO 20482:2013) Metallische Werkstoffe - Bleche und Bnder - Tiefungsversuch nach Erichsen (ISO 20482:2013) This European Standard was approved by CEN on 28 October 2013. CEN members are bound to comply with the CEN/CENELEC Internal Re
6、gulations 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 CEN-CENELEC Management Centre or to any CEN me
7、mber. This 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 CEN-CENELEC Management Centre has the same status as the official versions.
8、 CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Polan
9、d, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation i
10、n any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 20482:2013 EBS EN ISO 20482:2013EN ISO 20482:2013 (E) 3 Foreword The text of ISO 20482:2013 has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals” of the International Organization fo
11、r Standardization (ISO) and has been taken over as EN ISO 20482:2013 by Technical Committee ECISS/TC 101 “Test methods for steel (other than chemical analysis)” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication o
12、f an identical text or by endorsement, at the latest by May 2014, and conflicting national standards shall be withdrawn at the latest by May 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be hel
13、d responsible for identifying any or all such patent rights. This document supersedes EN ISO 20482:2003. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croat
14、ia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and th
15、e United Kingdom. Endorsement notice The text of ISO 20482:2013 has been approved by CEN as EN ISO 20482:2013 without any modification. BS EN ISO 20482:2013ISO 20482:2013(E) ISO 2013 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Symbol
16、s and designations 15 Principle 36 Testing equipment 37 Test piece 38 Test conditions . 49 Procedure. 410 Test report . 4Annex A (informative) Recommended composition of the graphite grease 6Bibliography 7BS EN ISO 20482:2013ISO 20482:2013(E)ForewordIISO (the International Organization for Standardi
17、zation) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to b
18、e represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used t
19、o develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of t
20、he ISO/IEC Directives, Part 2. www.iso.org/directivesAttention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during t
21、he development of the document will be in the Introduction and/or on the ISO list of patent declarations received. www.iso.org/patentsAny trade name used in this document is information given for the convenience of users and does not constitute an endorsement.The committee responsible for this docum
22、ent is ISO/TC 164, Mechanical testing of metals, Subcommittee SC 2, Ductility testing.This second edition cancels and replaces the first edition (ISO 20482:2003), of which it constitutes a minor revision.iv ISO 2013 All rights reservedBS EN ISO 20482:2013INTERNATIONAL STANDARD ISO 20482:2013(E)Metal
23、lic materials Sheet and strip Erichsen cupping test1 ScopeThis International Standard specifies a standard test method for determining the ability of metallic sheets and strips having a thickness from 0,1 mm up to 2 mm and a width of 90 mm or greater to undergo plastic deformation in stretch forming
24、.For materials that are thicker and when only narrower strips are available, tools of specified dimensions are provided, in which case subscripts are used, as shown in Table 1.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indi
25、spensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 4287, Geometrical Product Specifications (GPS) Surface texture: Profile method Terms, definitions and surf
26、ace texture parameters3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1through crackcrack that goes through the full thickness of the test piece and is just sufficiently wide to allow light to pass through part of its length4 Symbols and designat
27、ionsSymbols and designations used in this International Standard are illustrated by Figure 1 and given in Table 1. ISO 2013 All rights reserved 1BS EN ISO 20482:2013ISO 20482:2013(E)bd4d2d3d1d5R1R2h1ahIER1Figure 1 Schematic representation Erichsen cupping indexTable 1 Symbols and designationsDimensi
28、ons in millimetresSymbol DesignationTest piece and tool dimensions, and Erichsen cupping indicesStandard testTests with thicker or more narrow sheetsa Thickness of the test piece 0,1 a 2 2 90 mm, the centre of any indentation is not less than 45 mm from any edge of the test piece, and not less than
29、90 mm from the centre of the adjacent indentation. For narrow test pieces the centres of the indentations shall be in the centre of the test piece width and at least one strip width from the centre of an adjacent indentation.7.2 The preparation of the test piece shall not produce on the edges any bu
30、rr or distortion which would prevent it being placed in the machine and which could interfere with the performance of the test. ISO 2013 All rights reserved 3BS EN ISO 20482:2013ISO 20482:2013(E)7.3 Before testing, the test piece shall not be submitted to any hammering or hot or cold working.8 Test
31、conditionsIn general, the test shall be carried out at a temperature between 10 C and 35 C. The test carried out under controlled conditions, where required, shall be made at a temperature of (23 5)C.9 Procedure9.1 Determine the thickness of the test piece to the nearest 0,01 mm.9.2 Before operating
32、 the machine, lightly grease the surfaces of the test piece which will be in contact with the punch and die using graphite grease. For the recommended composition of the graphite grease, see Annex A.By agreement, another type of lubricant may be used.9.3 Clamp the test piece between the blank holder
33、 and the die. The blank holder force shall be approximately 10 kN.9.4 Bring the punch, without causing shock, into contact with the test piece. Take the measurement of penetration from this point.NOTE Before the test starts, the top of the punch should be on the same level as the upper surface of th
34、e blank holder (test point of the calibration).9.5 Proceed with forming the indentation smoothly, at a rate between 5 mm/min and 20 mm/min for the standard test. For the test pieces with b 90 mm, the rate shall be between 5 mm/min and 10 mm/min.NOTE 1 For manually operated machines, toward the end o
35、f the operation, reduce the rate to near the lower limit in order to determine accurately the moment when a through crack appears.NOTE 2 When using computer-controlled testing machines, the reduction of the rate at the end of the test is not necessary, because the test result is directly given by th
36、e force/punch displacement diagram.9.6 Stop the movement of the punch the instant a crack appears through the full thickness of the test piece.9.7 Measure the depth of penetration to the nearest 0,1 mm designated h as shown in Figure 1.9.8 A minimum of three tests shall be carried out unless otherwi
37、se specified in product standards. The value of Erichsen cupping index IE shall be the average of a minimum of three individual h readings, expressed in millimetres.10 Test reportThe test report shall include at least the following information:a) a reference to this International Standard, i.e. ISO
38、20482;b) identity of the test piece (test piece orientation);c) thickness of the test piece;d) type of lubricant used;e) appearance of test piece after rupture, if required;4 ISO 2013 All rights reservedBS EN ISO 20482:2013ISO 20482:2013(E)f) value of the Erichsen cupping index, IE, single values if
39、 required. ISO 2013 All rights reserved 5BS EN ISO 20482:2013ISO 20482:2013(E)Annex A (informative) Recommended composition of the graphite greaseIt is known that the test results depend on the type of grease used. One representative grease that is known to be suitable has the following characterist
40、ics as determined by the relevant material specifications.The grease consists of calcium soap, refined mineral oil and flake graphite.It should be free from corrosive matter, grit resin, wax and fillers.The grease and its components should conform to the requirements shown in Table A.1.Table A.1 Rec
41、ommended characteristics of the graphite greaseComponent Characteristic Recommended valueGreaseWorked penetration of cone of 150 g at a temperature of 25 CFree acidityFree alkalinityWater contentGraphite content250 to 2800,2 % max. aoleic acid0,3 % max. aCa(OH)20,5 % to 1,2 %23 % to 28 % aFlake grap
42、hiteMaximum particle sizeAsh0,3 mm4,5 % max. aMineral oilViscosity at 37,8 CClosed flash pointAshNeutralization value100 cS to 120 cS177 C min.0,01 % max. a0,1 mg of KOH/g max.aMass fraction.6 ISO 2013 All rights reservedBS EN ISO 20482:2013ISO 20482:2013(E)Bibliography1 ISO 1302:2002, Geometrical P
43、roduct Specifications (GPS) Indication of surface texture in technical product documentation ISO 2013 All rights reserved 7This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications,
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