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General specifications of sheet metal stamping parts
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Basic data
| Standard ID | GB/T 30571-2014 (GB/T30571-2014) |
| Description (Translated English) | General specifications of sheet metal stamping parts |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | J32 |
| Classification of International Standard | 25.020 |
| Word Count Estimation | 6,671 |
| Date of Issue | 5/6/2014 |
| Date of Implementation | 12/1/2014 |
| Quoted Standard | GB/T 228.1; GB/T 230.1; GB/T 710; GB/T 716; GB/T 2040; GB/T 2521; GB/T 2828.1; GB/T 3280; GB/T 6892; GB/T 15055; GB/T 16743; GB/T 30570; JB/T 4129; JB/T 4381; GB/T 15825.1; GB/T 15825.2; GB/T 15825.3; GB/T 15825.4; GB/T 15825.5; GB/T 15825.6; GB/T 15825.7 |
| Regulation (derived from) | National Standard Announcement 2014 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 requirements for cold stamping of metal parts, test items, and delivery methods and acceptance criteria. This Standard applies to the use of cold stamping process for the production of sheet metal thickness greater than 0. 1mm |
GB/T 30571-2014: General specifications of sheet metal stamping parts
---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.
General specifications of sheet metal stamping parts
ICS 25.020
J32
National Standards of People's Republic of China
Cold metal stamping parts General technical conditions
Issued on. 2014-05-06
2014-12-01 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.
Drafting of this standard. Shanghai Jiaotong University, Yangzhou Ling Electronics Co., Ltd., Beijing Institute of Electrical.
The main drafters of this standard. Zhao Zhen, Zhuang Village, Wang Chung, red and gold, to China, Wei Wei, Chen Wenjing.
Cold metal stamping parts General technical conditions
1 Scope
This standard specifies requirements for cold metal stamping parts, inspection items, inspection methods and delivery conditions.
This standard applies to cold pressing method of production of sheet metal thickness greater than 0.1mm cold stamping. Stamping profiles and pipes
Member can refer to this standard.
This standard does not apply to the use of fine blanking methods of production stampings.
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.
RT Test Method. Test Part 1 GB/T 228.1 metallic materials tensile
GB/T 230.1 metallic materials - Rockwell hardness test - Part 1. Test methods (A, B, C, D, E, F, G, H, K, N, T standard
ruler)
GB/T 710 high-quality carbon structural steel sheets and strips
GB/T 716 carbon structural steel cold-rolled steel
GB/T 2040 copper and copper alloy sheet
GB/T 2521 cold rolled grain oriented and non-oriented electrical steel (sheet)
GB/T 2828.1 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch inspection sampling plan
GB/T 3280 stainless steel cold-rolled steel sheet and strip
GB/T 6892 General Industrial aluminum and aluminum alloy extrusion profiles
GB/T 15055 stampings not note size limit deviation tolerance
And test methods GB/T 15825 (all parts) sheet metal forming
GB/T 16743 blanking clearance
30570 cold metal stamping components as GB/T
JB/T 4129 stamping burr height
JB/T material dimensions without individual tolerance limit deviations punching shear at 4381
3 Requirements
3.1 raw materials
3.1.1 stampings selected raw materials should be consistent with stamping drawings and GB/T 710, GB/T 716, GB/T 2521, GB/T 6892,
The provisions of GB/T 2040 and GB/T 3280, and we can use stamping parts manufacturers and customers agreed material.
3.1.2 The quality of raw materials should be stamping a pledge to comply with the technical requirements of the material. Stampings manufacturers may be needed
Reinspection, the reinspection and major projects include.
a) visual inspection. Test material surface defects, smudges, outline, size, shape and thickness and surface roughness.
b) chemical analysis, metallographic examination. Content of chemical elements in the material; determining the level of material grain size and uniformity; assessment material
Level feed free cementite, banded structure and non-metallic inclusions; check the material shrinkage, porosity and other defects.
...