title>JB/T 9179.6-1999 Machining allowance and tolerance module for free forgings on hydraulic press - JB/T 9179.6-1999 - Chinese standardNet - bzxz.net
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JB/T 9179.6-1999 Machining allowance and tolerance module for free forgings on hydraulic press

Basic Information

Standard ID: JB/T 9179.6-1999

Standard Name: Machining allowance and tolerance module for free forgings on hydraulic press

Chinese Name: 水压机上自由锻件机械加工余量与公差 模块类

Standard category:Machinery Industry Standard (JB)

state:in force

Date of Release1999-06-24

Date of Implementation:2000-06-24

standard classification number

Standard ICS number:Mechanical Manufacturing >> 25.020 Manufacturing Process

Standard Classification Number:Machinery>>Processing Technology>>J32 Forging

associated standards

alternative situation:ZB J32003.6-1988

Publication information

other information

Focal point unit:National Forging Standardization Technical Committee

Introduction to standards:

JB/T 9179.6-1999 JB/T 9179.6-1999 Machining allowances and tolerances for free forgings on hydraulic presses Module JB/T9179.6-1999 Standard download decompression password: www.bzxz.net

Some standard content:

JB/T9179.6—1999
This standard is a revision of ZBJ32003.6--88 "Machining allowances and tolerances of free forgings on hydraulic presses". The original text has been edited and the main technical contents have been modified as follows: - Cancel the original Table 1 and adopt Table 1 in JB/T 9179.2--1999. This standard replaces ZBJ32003.688 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Forging Standardization. The responsible drafting unit of this standard: Shanghai Heavy Machinery Plant. The main drafters of this standard: Wang Qianhe and Xie Peide. Module Class". In revision
1 Scope
Machinery Industry Standard of the People's Republic of China
Machining allowances and tolerances of open die forgings on hydraulic press-Dieblock
Machining allowances and tolerances of open die forgings on hydraulic press-Dieblock
This standard specifies the allowances and tolerances of open die forgings on hydraulic press-Dieblock. JB/T 9179.6--1999bzxZ.net
ZI3 J32003.6--88
This standard is applicable to module forgings with part dimensions of A≤B≤L, L≤1.5B, L≤2.5A and flat end faces. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard by reference in this standard. When this standard was published, the versions shown were all valid. All standards will be revised. All parties using this standard should explore the possibility of using the latest version of the following standards JB/T9179.2--1999 Machining allowances and tolerances for free forgings on hydraulic presses Machining allowances and tolerances for cylindrical, square shaft and rectangular cross-section types 3
Machining allowances and tolerances for free forgings of modular type shall comply with Figure 1 and Table 1 of JB/T9179.2-1999. p90
Approved by the State Machinery Industry Bureau on June 24, 1999 376
Implemented on January 1, 2000
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