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GB/T 21020-2007: Metal cutting tools -- Terms in circular screwing dies
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21020-2007 | English | 319 |
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Metal cutting tools -- Terms in circular screwing dies
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GB/T 21020-2007
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Basic data | Standard ID | GB/T 21020-2007 (GB/T21020-2007) | | Description (Translated English) | Metal cutting tools -- Terms in circular screwing dies | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J41 | | Classification of International Standard | 25.100.50 | | Word Count Estimation | 12,127 | | Date of Issue | 2007-07-26 | | Date of Implementation | 2007-12-01 | | Adopted Standard | ISO 5968-1981, MOD | | Regulation (derived from) | China National Standard Announcement 2007 No.7 (Total No.107) - National-Standard-Commission | | 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 terms of metal cutting circular die with, definition. Also lists the corresponding English words and terminology index. This standard applies to metal cutting circular die. The purpose of this standard, as is a common reference for users and manufacturers of round die, only schematic diagram given. | GB/T 21020-2007: Metal cutting tools -- Terms in circular screwing dies---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.
Metal cutting tools. Terms in circular screwing dies
ICS 25.100.50
J41
National Standards of People's Republic of China
Metal cutting tools round die term
(ISO 5968. 1981, Circularscrewingdies-Terminology, MOD)
Posted 2007-07-26
2007-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This revised standard adopts ISO 5968. 1981 "round die term" (in English).
This standard and ISO 5968. 1981 with the following differences.
--- Delete ISO introduction, increasing the foreword;
--- Increasing the normative references;
--- "This International Standard" by "this standard";
--- Chapter 1 of the ISO made the necessary modifications, apply standard object is to use metal cutting circular die, delete the note on language;
--- Chapter 2 of the ISO , Chapter 3 made editorial and technical corrections.
ISO standard terminology that is classified as.
Chapter 2, "the shape of round die," Chapter 3, "part of the name of each round die";
The standard terms classified as.
Chapter 3, "terms and definitions related to the structural parameters", including ISO standard Chapter 3, delete the die body, inclined front
Rake angle, the front part of the calibration corner, Cone radial clearance angle, tilt angle in front of the adjusting screw slots, adjusting screws and other terms;
Chapter 4, "round die main types of definitions and terminology," Chapter 2 contains the ISO standard content, increasing the screw tip round die, slant-hole
Round Banya, hand circular die, die machine with a round, cylindrical pipe thread round die, tapered pipe thread round die, unified thread round die, etc.
the term;
--- Increase the index.
The standard proposed by China Machinery Industry Federation.
This standard tool by the National Standardization Technical Committee (SAC/TC91) centralized.
This standard was drafted. Chengdu Tool Institute.
The main drafters of this standard. Xu Gang, Chen Shichang.
Metal cutting tools round die term
1 Scope
This standard specifies the use of metal-cutting circular dies of terms and definitions, and lists the terms of the corresponding English words and index.
This standard applies to metal cutting with a round die.
This standard is intended as a common reference circle Dies users and manufacturers, given only schematic diagram.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 970.1 round die type and size (GB/T 970.1-1994, eqv ISO 2568. 1988)
GB/T 1008 basic terminology machining technology and equipment
GB/T 12204 metal cutting basic terms
GB/T 14791 threads term
3 Terms and definitions related to the structural parameters
Note. The figure with the number of this standard chapter entry number.
Figure 1
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