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GB/T 4156-2020 English PDF (GB/T 4156-2007, GB/T 4156-1984)

GB/T 4156-2020_English: PDF (GB/T4156-2020)
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 4156-2020English145 Add to Cart 0--9 seconds. Auto-delivery Metallic materials -- Sheet and strip -- Erichsen cupping test Valid GB/T 4156-2020
GB/T 4156-2007English279 Add to Cart 3 days [Need to translate] Metallic materials -- Sheet and strip -- Erichsen cupping test Obsolete GB/T 4156-2007
GB/T 4156-1984English199 Add to Cart 2 days [Need to translate] Metals--Cupping testing method (thickness 0. 2-2mm) Obsolete GB/T 4156-1984


BASIC DATA
Standard ID GB/T 4156-2020 (GB/T4156-2020)
Description (Translated English) Metallic materials -- Sheet and strip -- Erichsen cupping test
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H23
Classification of International Standard 77.040.10
Word Count Estimation 9,927
Date of Issue 2020-03-31
Date of Implementation 2020-10-01
Drafting Organization Baoshan Iron and Steel Co., Ltd., Zhejiang Special Equipment Research Institute, Shanghai Shenli Testing Machine Co., Ltd., Metallurgical Industry Information Standards Research Institute, Shenzhen Wanshi Testing Equipment Co., Ltd., Dongguan Advanced Institute of Materials Gene Science and Technology, Shanghai Customs Industrial Products and Raw material testing technology center
Administrative Organization National Steel Standardization Technical Committee (SAC/TC 183)
Proposing organization China Iron and Steel Association
Issuing agency(ies) State Administration for Market Regulation, National Standardization Administration

BASIC DATA
Standard ID GB/T 4156-2007 (GB/T4156-2007)
Description (Translated English) Metallic materials. Sheet and strip. Erichsen cupping test
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H23
Classification of International Standard 77.040.10
Word Count Estimation 7,738
Date of Issue 2007-08-14
Date of Implementation 2008-03-01
Older Standard (superseded by this standard) GB/T 4156-1984
Quoted Standard GB/T 3505
Adopted Standard ISO 20482-2003, IDT
Drafting Organization Baoshan Iron & Steel Co., Ltd.
Administrative Organization National Steel Standardization Technical Committee
Regulation (derived from) China National Standard Approval Announcement2007 No.8 (Total No.108)
Proposing organization China Iron and Steel Association
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China
Summary This standard specifies a method for determining the thickness of 0. 1 mm ~ 2. 0 mm, width equal to or greater than 90 mm metal sheet and strip in the test methods to withstand plastic deformation when drawing forming. For thicker or only take to narrow the sample sheet and strip, requires the use of specified dimensions of the mold, and the results are shown when using the subscript indicated in Table 1.

BASIC DATA
Standard ID GB/T 4156-1984 (GB/T4156-1984)
Description (Translated English) Metals--Cupping testing method (thickness 0. 2-2mm)
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H26
Classification of International Standard 77.040.10
Word Count Estimation 4,441
Date of Issue 1984/2/24
Date of Implementation 1985/1/1
Regulation (derived from) China Announcement of Newly Approved National Standards 2007 No. 8 (No. 108 overall)
Proposing organization Ministry of Metallurgical Industry of the People Republic of China
Issuing agency(ies) National Bureau of Standards


GB/T 4156-2020 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.040.10 H 23 GB/T 4156-2020 / ISO 20482:2013 Replacing GB/T 4156-2007 Metallic Materials - Sheet and Strip - Erichsen Cupping Test (ISO 20482:2013, IDT) ISSUED ON: MARCH 31, 2020 IMPLEMENTED ON: OCTOBER 01, 2020 Issued by: State Administration for Market Regulation; Standardization Administration of PRC. Table of Contents Foreword ... 3 1 Scope ... 5 2 Normative References ... 5 3 Terms and Definitions ... 5 4 Symbols and Instructions ... 5 5 Test Principle ... 7 6 Test Equipment ... 7 7 Specimen ... 8 8 Test Conditions ... 8 9 Test Procedures ... 8 10 Test Report ... 9 Appendix A (Informative) Recommended Composition of Graphite Grease .. 10 Bibliography ... 11 Metallic Materials - Sheet and Strip - Erichsen Cupping Test 1 Scope This Standard specifies the method for determining the ability of metal sheets and strips to withstand plastic deformation during drawing forming by the Erichsen Cupping Test. This Standard is applicable to the determination of metal sheets and strips with a thickness of 0.1mm~2.0mm and a width of no less than 90mm. For thicker sheets and strips or those that only the narrower specimen may be taken, then use the mold with specified size; and the subscript shall be used when indicating the results. See Table 1. 2 Normative References The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document. ISO 4287 Geometrical Product Specifications (GPS) - Surface Texture: Profile Method - Terms, Definitions and Surface Texture Parameters 3 Terms and Definitions For the purpose of this document, the following terms and definitions apply. 3.1 Through crack The crack penetrates the entire thickness of the sample, and the width of the crack is just enough to allow light to pass through the crack. 4 Symbols and Instructions The symbols, instructions and units used in this Standard are given in Figure 1 and 5 Test Principle A punch with a spherical end is pressed against a specimen clamped between the die mold and the die cushion to form a dent until a through crack appears. The depth of the dent measured based on the displacement of the punch is the test result. 6 Test Equipment 6.1 The test shall be carried out on a device equipped with a die mold, punch and die cushion. The dimensions and tolerances of the die mold, punch and die cushion are shown in Table 1. 6.2 The structure of the test equipment shall ensure that the outer surface of the specimen may be observed during the test, and may determine the instant when the through crack occurs. NOTE: Usually when the crack occurs, the specimen’s ability to withstand the force decreases, and sometimes it also emits a noticeable sound. 6.3 The equipment shall be equipped with a measuring tool for measuring the movement of the punch with a resolution of at least 0.1mm. 6.4 The die mold, die cushion and punch shall have sufficient rigidity and shall not deform during the test. The Vickers hardness of the working surface of the die mold, die cushion and punch is at least 750HV30. And shall meet the following requirements: a) The punch shall not rotate during the test; b) The working surface of the punch shall be spherical and polished; and the average roughness Ra defined by ISO 4287 shall be no greater than 0.4µm. 6.5 The distance of the die mold axis relative to the spherical center of the punch shall be less than 0.1mm within the range of stamping stroke. 6.6 The contact surface BETWEEN the die cushion, die mold AND the specimen shall be flat and perpendicular to the movement axis of the punch. The forming die mold shall be able to self-adjust with respect to the die cushion (fixed). 6.7 The test equipment shall have a constant clamping force of about 10kN to ensure that the specimen is clamped. 6.8 The test equipment shall be able to measure the displacement of the punch from the beginning of contact with the surface of the specimen. 6.9 Hardened steel balls may also be used to replace the punches specified in 6.1, 6.4, 9.5 Pressing-in and molding smoothly. For standard tests, the rate shall be controlled between 5mm/min~20mm/min. For specimens with width or diameter b< 90mm, the rate shall be controlled between 5mm/min~10mm/min. NOTE 1: For manually-operated test equipment, when the operation is near the end, the rate shall be reduced to close to the lower limit; so as to be able to accurately determine the instant of the occurrence of trough cracks. NOTE 2: When using computer-controlled test equipment, because the test results are directly given by the force-punch displacement diagram, so there is no need to reduce the rate later in the test. 9.6 When a through crack occurs, the movement of the punch shall be stopped immediately. NOTE: Generally, when a through crack occurs, there will be a force attenuation in the force- punch displacement diagram. This force attenuation may be used as a basis for determining the stop of the punch movement. 9.7 Measure the indentation depth of the punch, as shown, h, in Figure 1; accurate to 0.1mm. 9.8 Unless otherwise specified in the product standard, at least three tests shall be carried out; the Erichsen Cupping value IE shall be the average of all measured values of h readings, in millimeters (mm). 10 Test Report The test report shall include at least the following: a) Number of this standard; b) Identification of the specimen (sampling position); c) The thickness of the specimen; d) The type of used lubricant; e) If required, provide the specimen morphology after rupture; f) Erichsen Cupping Value IE (if required, provide a single measurement value). ......


GB/T 4156-2007 Metallic materials. Sheet and strip. Erichsen cupping test ICS 77.040.10 H23 National Standards of People's Republic of China GB/T 4156-2007/ISO 20482.2003 Replacing GB/T 4156-1984 Metallic materials - Sheet and strip - Erichsen cupping test (ISO 20482.2003, IDT) Posted 2007-08-14 2008-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Foreword This standard is equivalent to international standard ISO 20482.2003 "Metallic materials - Sheet and strip - Erichsen cupping test" (in English). For ease of use, this standard made the following editorial changes. a) "this International Standard" be replaced by "this standard"; b) use a decimal point instead of a decimal comma ",". ","; c) Remove the preface to the international standards; d) a reference to the file by pressing the corresponding national standards were changed. / T 4156-1984 "Metal Cupping test methods" This standard replaces GB The revision of this standard GB/T 4156-1984 following major technical content has been modified. --- Standard name in accordance with international standards do change; --- Chapters were rearranged; --- Increased thicker or narrower sheet test; --- Die, die pad thickness and surface roughness are no longer prescribed; --- Before the test, punch longer apply graphite grease; --- Introduce the concept of computer-controlled test equipment. Appendix A of this standard is an informative annex. The standard proposed by China Iron and Steel Association. This standard is under the jurisdiction of the National Steel Standardization Technical Committee. This standard was drafted. Baoshan Iron & Steel Co., Wuhan Iron and Steel (Group) Corporation, Metallurgical Industry Information Standards Institute. The main drafters of this standard. Xu Weicheng, Li Heping, Zhou Xing, IRON Dong Li. This standard replaces the standards previously issued as follows. GB/T 4156-1984. GB/T 4156-2007/ISO 20482.2003 Metallic materials - Sheet and strip - Erichsen cupping test 1 Scope This standard specifies the method of determining the thickness of 0.1mm ~ 2.0mm, width equal to or greater than 90mm of metal sheet and strip in La Test methods for plastic deformation capacity to withstand delay forming. For thicker or narrower to only take a sample sheet and strip, requires the use of the specified size of the mold, and the subscript is represented in results Noted in Table 1. 2 Normative references The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 3505 product terms, definitions and surface texture parameters geometry specification structure surface contour method (GB/T 3505-2000, eqv ISO 4287.1997) 3 Terms and Definitions The following terms and definitions apply to this standard. 3.1 Through crack refers to the entire thickness of the sample through the crack, and the width of the crack is just make light in part through the cracks. 4 Symbols and The standard symbols used, description, and units are given in Figure 1 and Table 1 below. 1 Erichsen cupping values schematic diagram GB/T 4156-2007/ISO 20482.2003 ......

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