Chinese Standards Shop Partner of Google-Books Database: 169759 (Nov 10, 2019)
 HOME   Quotation   Tax   Examples Standard-List   Contact-Us   View-Cart
  

JB/T 4129-1999

Chinese Standard: 'JB/T 4129-1999'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusRelated Standard
JB/T 4129-1999English70 Add to Cart 0--15 minutes. Auto immediate delivery. Burr height standard for stampings Valid JB/T 4129-1999

 JB/T 4129-1999 -- Click to view a PDF In 0~10 minutes time, full copy of this English-PDF will be auto-immediately delivered to your email by our cloud-server.  
Detail Information of JB/T 4129-1999; JB/T4129-1999; JBT 4129-1999; JBT4129-1999
Description (Translated English): Burr height standard for stampings
Sector / Industry: Mechanical & Machinery Industry Standard (Recommended)
Classification of Chinese Standard: J32
Classification of International Standard: 25.020
Word Count Estimation: 5,000
Date of Issue: 1999-06-24
Date of Implementation: 2000-01-01
Older Standard (superseded by this standard): JB 4129-1985
Drafting Organization: Fourth State Administration of Machinery Industry Design and Research Institute
Administrative Organization: Forging the National Standardization Technical Committee
Summary: This standard applies: there are certain requirements for burr height metal stamping products. This standard does not apply to the special requirements for the glitch finished parts and precision stamping parts. The criteria listed stamping tolerance values ??- the concept is not allowed -. However, generally come with varying degrees of stampings burr, burr height exceeds a certain limit, would affect the product quality and performance.

JB/T 4129-1999
ICS 25.020
J 32
INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
Burr height standard for stampings
冲压件毛刺高度
ISSUED ON. JUNE 24, 1999
IMPLEMENTED ON. JANUARY 1, 2000
Issued by. State Bureau of Machinery Industry, PRC
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Definitions ... 4
3 Limits of burr’s height ... 4
4 Testing ... 5
Foreword
This Standard is equivalent to DIN 9830 "Burr height standard for stampings".
This Standard is the revised standard of JB 4129-85 " Burr height standard for
stampings". After discussion and comments, according to the representatives’ views,
the limits of burr height standard for stampings of sheet thickness ≤ 0.1 mm and > 0.1
~ 0.2 mm - have been modified appropriately. And it also makes editorial changes to
the previous standard.
This Standard replaces JB 4129-85 from the date of implementation.
This Standard was proposed and administered by the National Forging
Standardization Technical Committee.
This Standard was drafted by organization. The 4th Design Institute, State Bureau of
Machinery Industry.
Drafter of this Standard. Chen Hongfang.
Burr height standard for stampings
1 Scope
The value listed in this Standard are conceptually not allowed in the stamping
tolerance. However, general stamping parts come with varying degrees of burrs.
When the burr’s height exceeds a certain limit, it will affect the product quality and
usage performance.
This Standard applies to the finished metal stamping parts which have certain
requirements for burr’s height. It does not apply to the finished parts and precision
stamping parts which have special requirements for burrs.
2 Definitions
This Standard adopts the following definitions.
2.1 Burr’s height for stamping
Burr height for stamping refers to those left-over burrs on the section openings of the
finished stamping parts, when the material is stamped. It is shown in Figure 1.
Blanking stampi......
Related standard:   JB/T 4120-2017  JB/T 4136.1-2017
   
 
Privacy   ···   Product Quality   ···   About Us   ···   Refund Policy   ···   Fair Trading   ···   Quick Response
Field Test Asia Limited | Taxed in Singapore: 201302277C | Copyright 2012-2019