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Metal spinning formability and test methods - Formability, formability indexes and general test code of practice
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Basic data
| Standard ID | GB/T 43479-2023 (GB/T43479-2023) |
| Description (Translated English) | Metal spinning formability and test methods - Formability, formability indexes and general test code of practice |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | J32 |
| Classification of International Standard | 25.020 |
| Word Count Estimation | 22,248 |
| Date of Issue | 2023-12-28 |
| Date of Implementation | 2024-07-01 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 43479-2023: Metal spinning formability and test methods - Formability, formability indexes and general test code of practice
---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.
ICS 25:020
CCSJ32
National Standards of People's Republic of China
Metal spinning forming properties and test methods
Forming performance, forming indicators and general test procedures
Published on 2023-12-28
2024-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Metal spinning performance indicators 2
5 General operating steps for metal spin forming performance testing 3
6 Sample preparation 3
7 Test wheel, mandrel and tail top 4
8 Test auxiliary devices and machine tools 6
9 Specimen lubrication and cooling 7
10 Pre-test 7
11 Formal test 8
12 Data collection and calculation 8
13 Test report 8
Appendix A (informative) Classification of spin forming technology 10
Appendix B (informative) The relationship between metal spinning forming properties and material mechanical properties 13
Appendix C (informative) Spin force estimation formula 14
Appendix D (informative) Defect status judgment method for metal spinning forming performance test 16
Foreword
This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents"
Drafting:
Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:
This document is proposed and coordinated by the National Forging Standardization Technical Committee (SAC/TC74):
This document was drafted by: South China University of Technology, Inner Mongolia Aerospace Honggang Machinery Co:, Ltd:, China Machinery General Institute Group Beijing Mechanical and Electrical Research
Co:, Ltd:, Baoshan Iron and Steel Co:, Ltd:, Guangzhou Civil Aviation Vocational and Technical College, Guangzhou Guanglei Mechanical and Electrical Equipment Technology Co:, Ltd:
The main drafters of this document: Xia Qinxiang, Xiao Gangfeng, Yang Ruizhi, Zhou Lin, Xiao Hua, Cheng Xiuquan, Zhang Junhao, Chen Can, Xu Chunlei, Qin Sixiao,
Shi Lei, Bian Xuyang, Cheng Sizhu, Zhou Haoyang, Wang Ding, Ma Qianqian, Xu Dongkai, Guo Mingming, Liu Xiuping:
Metal spinning forming properties and test methods
Forming performance, forming indicators and general test procedures
1 Scope
This document stipulates the forming performance and forming indicators of room temperature spin forming of metal materials, and describes the general operating steps for performance testing:
Steps include sample preparation, test wheel, mandrel and tail top preparation, test auxiliary device and machine tool preparation, sample lubrication and cooling, pre-test, normal test
Type test, data collection and calculation, and test report:
This document is suitable for testing the spinning forming properties of metal drawing spinning, reducing diameter spinning, shear spinning and flow spinning: It is also applicable to metal spinning:
It is a test for the testing of special spinning forming properties such as reducing diameter spinning of non-axisymmetric parts and spinning of non-circular cross-section parts:
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document:
GB/T 228:1 Tensile testing of metallic materials Part 1: Room temperature test method
GB/T 8541 Forging Terminology
GB/T 38959 Specification for powerful spinning process of high-strength steel
3 Terms and definitions
The following terms and definitions as defined in GB/T 228:1, GB/T 8541 and GB/T 38959 apply to this document:
3:1
The deformation ability that a metal material can achieve without damage (defects such as wrinkling, cracking, peeling or bulging) during single-pass spinning forming, that is,
The ability of materials to be smoothly formed and meet quality requirements during spin forming:
3:2
When deep drawing spinning is formed, the minimum diameter of the spinning part that can be formed in a single pass of spinning without wrinkling or cracking is the same as the blank:
diameter ratio:
3:3
limit halfconeangle limithalfconeangle
During shear spinning forming, the bus bar and workpiece of the spinning part can be formed in a single pass of spinning without wrinkling, peeling or cracking:
The minimum angle between the axis of the piece:
3:4
limitthinningratio limitthinningratio
It can be formed without wrinkling, peeling or cracking during shear spinning: It can be formed without peeling, cracking or bulging during flow spinning:
In the case of , the ratio of the difference between the original thickness of the blank and the minimum wall thickness of the spinning part that can be formed by a single pass of spinning to the original thickness of the blank:
...
