GB/T 30570-2014 English PDF

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GB/T 30570-2014: Structural main factors of sheet metal stamping parts
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 30570-2014	189	Add to Cart	3 days	Structural main factors of sheet metal stamping parts	Valid

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Basic data

Standard ID: GB/T 30570-2014 (GB/T30570-2014)
Description (Translated English): Structural main factors of sheet metal stamping parts
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J32
Classification of International Standard: 25.020
Word Count Estimation: 8,891
Date of Issue: 5/6/2014
Date of Implementation: 12/1/2014
Quoted Standard: JB/T 5109-2001
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 cold metal punching, bending, drawing and structural elements of turn-hole parts and common process data limitations. This Standard applies to the general structure of cold stamping. This Standard does not apply to cold stampin

GB/T 30570-2014: Structural main factors 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.
Structural main factors of sheet metal stamping parts ICS 25.020 J32 National Standards of People's Republic of China Cold metal stamping structural elements 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. Zhuang Village, Zhao Zhen, Wang Yong, Xie talk to China, Zhou Lin, Chen Wenjing. Cold metal stamping structural elements

1 Scope

This standard specifies the cold metal punching, bending, deep drawing and structural elements turn fitting process limitations and common data. This standard applies to the general structure of cold stamping. This standard does not apply to cold stamping and fine blanking member special structure.

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. JB/T 5109-2001 Sheet Metal Bending Process Design Specification

3 cold metal stamping structural elements

3.1 General principles 3.1.1 Cold stamping design should be reasonable shape to be as simple as possible, the rules of symmetry and to save raw materials and reduce the manufacturing process, improve the mold life Life, reduce job cost. 3.1.2 cold stamping of complex shapes can be considered divided into several simple stamping and then made the connection method. 3.1.3 The structure size limits given are determined according to the workpiece quality and economic efficiency. 3.2 blanking part structural elements 3.2.1 radius Using a punching mold punching finished, its shape and the hole should avoid sharp corners clear, there should be an appropriate fillet. Usually fillet half Radius R greater than or equal 0.5 times the thickness t, i.e. R≥0.5t (see Figure 1). figure 1 3.2.2 punching size Preferred circular. The minimum size and shape punching holes, the mechanical properties of the material and material thickness t about, no protective sleeve punch punching The diameter d or a rim width specified in Table 1. ......

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