1、March 2014Translation by DIN-Sprachendienst.English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 77
2、.040.10!%,k“2097299www.din.deDDIN EN ISO 20482Metallic materials Sheet and strip Erichsen cupping test (ISO 20482:2013);English version EN ISO 20482:2013,English translation of DIN EN ISO 20482:2014-03Metallische Werkstoffe Bleche und Bnder Tiefungsversuch nach Erichsen (ISO 20482:2013);Englische Fa
3、ssung EN ISO 20482:2013,Englische bersetzung von DIN EN ISO 20482:2014-03Matriaux mtalliques Tles et bandes Essai demboutissage Erichsen (ISO 20482:2013);Version anglaise EN ISO 20482:2013,Traduction anglaise de DIN EN ISO 20482:2014-03SupersedesDIN EN ISO 20482:2003-12www.beuth.deIn case of doubt,
4、the German-language original shall be considered authoritative.Document comprises 11 pages02.14 DIN EN ISO 20482:2014-03 2A comma is used as the decimal marker. National foreword This document (EN ISO 20482:2013) has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals”, Sub
5、committee SC 2 “Ductility testing” (Secretariat: JISC, Japan) in collaboration with Technical Committee ECISS/TC 101 “Test methods for steel (other than chemical analysis)” (Secretariat: AFNOR, France) in accordance with the agreement on technical cooperation between ISO and CEN (Vienna Agreement).
6、The responsible German body involved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee), Working Committee NA 062-01-42 AA Zug- und Duktilittsprfung fr Metalle. It should be noted that the English original text uses the term “material”, which in this ca
7、se refers to the product/semi-finished product itself. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 1302 DIN EN ISO 1302 ISO 4287 DIN EN ISO 4287 Amendments This standard differs from DIN EN ISO 20482:2003-12 as follows: a) the stand
8、ard has been editorially revised. Previous editions DIN DVM A 101: 1933-02 DIN 50101: 1947-01 DIN 50101-1: 1961-08, 1979-09 DIN 50101-2: 1961-08, 1979-09 DIN 50102: 1963-01, 1979-09 DIN EN ISO 20482: 2003-12 National Annex NA (informative) Bibliography DIN EN ISO 1302, Geometrical Product Specificat
9、ions (GPS) Indication of surface texture in technical product documentation DIN EN ISO 4287, Geometrical Product Specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM November 2013 ICS 77.040.10 Supers
10、edes EN ISO 20482:2003English Version Metallic materials - Sheet and strip - Erichsen cupping test (ISO 20482:2013) Matriaux mtalliques - Tles et bandes - Essai demboutissage Erichsen (ISO 20482:2013) Metallische Werkstoffe - Bleche und Bnder - Tiefungsversuch nach Erichsen (ISO 20482:2013) This Eur
11、opean Standard was approved by CEN on 28 October 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations 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
12、concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. 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 membe
13、r into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, Fran
14、ce, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KO
15、MITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 20482:2013 EEN ISO 20482Contents Page Foreword . 3 1 Scope . 4 2 Normative references. 4 3 T
16、erms and definitions 4 4 Symbols and designations 4 5 Principle 6 6 Testing equipment . 6 7 Test piece 6 8 Test conditions . 7 9 Procedure 7 10 Test report . 7 Annex A (informative) Recommended composition of the graphite grease 8 Bibliography 9 2DIN EN ISO 20482:2014-03EN ISO 20482:2013 (E)The text
17、 of ISO 20482:2013 has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals” of the International Organization for 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)” t
18、he 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 May 2014, and conflicting national standards shall be withdrawn at the latest by May 2014. Attention is dr
19、awn 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 held responsible for identifying any or all such patent rights. This document supersedes EN ISO 20482:2003. According to the CEN-CENELEC Internal Regulations, the na
20、tional standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, L
21、ithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 20482:2013 has been approved by CEN as EN ISO 20482:2013 without any modification. Foreword3DIN EN ISO 20482:
22、2014-03EN ISO 20482:2013 (E)1 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.For materials that are
23、 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 indispensable for its appli
24、cation. 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 surface texture parameters3
25、 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 designationsSymbols and designa
26、tions used in this International Standard are illustrated by Figure 1 and given in Table 1.4DIN EN ISO 20482:2014-03EN ISO 20482:2013 (E)bd4d2d3d1d5R1R2h1ahIER1Figure 1 Schematic representation Erichsen cupping indexTable 1 Symbols and designationsDimensions in millimetresSymbol DesignationTest piec
27、e 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 90 mm from the centre of the adjacent indenta
28、tion. 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 burr or distortion which would prevent it being
29、 placed in the machine and which could interfere with the performance of the test.7.3 Before testing, the test piece shall not be submitted to any hammering or hot or cold working.6DIN EN ISO 20482:2014-03EN ISO 20482:2013 (E)8 Test conditionsIn general, the test shall be carried out at a temperatur
30、e 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 the machine, lightly grease the surfaces of the test piece which w
31、ill 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 and the die. The blank holder force shall be approximately 10 kN.9
32、.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 the blank holder (test point of the calibration).9.5 Proceed with for
33、ming 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 of the operation, reduce the rate to near the lower limit in order t
34、o 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 the force/punch displacement diagram.9.6 Stop the movement of the pun
35、ch 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 otherwise specified in product standards. The value of Erichsen cupping in
36、dex 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 20482;b) identity of the test piece (test piece orientation);c) thi
37、ckness of the test piece;d) type of lubricant used;e) appearance of test piece after rupture, if required;f) value of the Erichsen cupping index, IE, single values if required.7DIN EN ISO 20482:2014-03EN ISO 20482:2013 (E)Annex A (informative) Recommended composition of the graphite greaseIt is know
38、n that the test results depend on the type of grease used. One representative grease that is known to be suitable has the following characteristics as determined by the relevant material specifications.The grease consists of calcium soap, refined mineral oil and flake graphite.It should be free from
39、 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 Recommended characteristics of the graphite greaseComponent Characteristic Recommended valueGreaseWorked penetration of cone of 150 g at a temperature of 25 CF
40、ree acidityFree alkalinityWater contentGraphite content250 to 2800,2 % max. aoleic acid0,3 % max. aCa(OH)20,5 % to 1,2 %23 % to 28 % aFlake graphiteMaximum 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.8DIN EN ISO 20482:2014-03EN ISO 20482:2013 (E)Bibliography1 ISO 1302:2002, Geometrical Product Specifications (GPS) Indication of surface texture in technical product documentation9DIN EN ISO 20482:2014-03EN ISO 20482:2013 (E)
