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GB/T 29536-2013: Testing method for the forming limit diagram (FLD) of metal tube
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 29536-2013 | English | 229 |
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Testing method for the forming limit diagram (FLD) of metal tube
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GB/T 29536-2013
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Basic data | Standard ID | GB/T 29536-2013 (GB/T29536-2013) | | Description (Translated English) | Testing method for the forming limit diagram (FLD) of metal tube | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J32 | | Classification of International Standard | 77.040.10 | | Word Count Estimation | 10,125 | | Quoted Standard | GB/T 15825.2; GB/T 24171.2-2009; GB/T 25134 | | Regulation (derived from) | National Standards Bulletin 2013 No. 9 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the metal tube forming limit diagram (Forming Limit Diagram, abbreviations FLD) test methods. This standard applies to cross-sectional thickness of 0. 20 mm ~ 4. 00 mm, diameter 20 mm ~ 120 mm ring-shaped metal pipe (including seam | GB/T 29536-2013: Testing method for the forming limit diagram (FLD) of metal tube---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Testing method for the forming limit diagram (FLD) of metal tube
ICS 77.040.10
J32
National Standards of People's Republic of China
Limit Diagram (FLD) Test Method for forming metal pipe
theforminglimitdiagram (FLD) ofmetaltube
Issued on. 2013-06-09
2014-03-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard by the National Standardization Technical Committee Forging (SAC/TC74) and focal points.
This standard is mainly drafted by. Baoshan Iron & Steel Co., Ltd., Shanghai Jiaotong University.
The main drafters of this standard. Jianghao Min, Chen Xinping, Li Shuhui, in Zhong Qi.
Limit Diagram (FLD) Test Method for forming metal pipe
1 Scope
This standard specifies the test methods for metal tube forming limit diagram (FormingLimitDiagram, Acronym FLD) of.
This standard applies to the cross-sectional wall thickness of 0.20mm ~ 4.00mm, outer diameter 20mm ~ 120mm round metal pipe (including seamless
And welded pipe).
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 15825.2 sheet metal formability and test methods - Part 2. General test procedures
Determination of GB/T 24171.2-2009 Sheet and strip metal material forming limit curves - Part 2. Laboratory shaped pole
Determination limit curve
GB/T 25134 and die forging parts three-dimensional geometrical optics standardized testing
3 Test principle
3.1 Test Forming Limit Diagram of metal pipe usually used internally pressurized tube loading manner.
3.2 The outer surface of the printed mesh tube placed inside the lower mold, the lower mold to complete the mold; filling the low-pressure pipe to the inside of the medium (liquid
Or gas), and using a seal end portion of the punch; to seal the interior of the pipe filled with pressure medium (liquid or gas), so that the pipe in the mold
Cavity deformation; at the same time, through the end of the punch displacement control to achieve different strain paths (see Figure 1); when the pipe local necking
Or rupture, the test was stopped.
Figure 1 Schematic test tube forming limit
3.3 Measuring surface sample produced a mesh size after deformation, calculated major and minor strain, draw forming limit diagram.
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