GB/T 2078-2019 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 2078-2019 | English | 344 |
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Dimensions of indexable hard metal (carbide) inserts with rounded corners, with cylindrical fixing hole
| Valid |
| GB/T 2078-2007 | English | 599 |
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Indexable hardmetal (carbide) inserts with rounded corners, with cylindrical fixing hole -- Dimensions
| Obsolete |
| GB/T 2078-1987 | English | RFQ |
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Indexable hardmetal (carbide) inserts with rounded corners, with cylindrical fixing hole
| Obsolete |
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GB/T 2078-2019: Dimensions of indexable hard metal (carbide) inserts with rounded corners, with cylindrical fixing hole
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT2078-2019
(Carbide indexable insert size with rounded round holes)
ICS 77.160
H70
National Standards of People's Republic of China
Replace GB/T 2078-2007
Carbide with rounded holes
Indexable insert size
Dimensionsofindexablehardmetal(carbide)insertswithroundedcorners,
Withcylindricalfixinghole
[ISO 3364.2017, Indexablehardmetal(carbide)insertswithroundedcorners,
Withcylindricalfixinghole-Dimensions,IDT]
Published on.2019-08-30
2020-07-01 implementation
State market supervision and administration
China National Standardization Administration issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 2078-2007 "Carbide indexable insert size with rounded hole fixing", and GB/T 2078-
Compared with.2007, the main technical changes except editorial changes are as follows.
--- Added VN model blade (see Chapter 3);
--- Modified the requirements for dimensional tolerance, not limited to M (see 4.1,.2007 version 4.1);
--- Added some models of blades and their dimensions (see Chapter 7);
--- Removed Appendix A, and the remaining appendix numbers were modified accordingly (see Appendix A of the.2007 edition).
This standard uses the translation method equivalent to ISO 3364.2017 "Carbide indexable insert size fixed with rounded holes".
The documents of our country that have a consistent correspondence with the international documents referenced in this standard are as follows.
---GB/T 2075-2007 Classification and use of hard cutting materials for cutting Large group and use group classification code
(ISO 513.2004, IDT);
---GB/T 2076-2007 Index for indexable inserts for cutting tools (ISO 1832.2004, MOD).
This standard has made the following editorial changes.
--- Modified the standard name.
This standard was proposed by the China Nonferrous Metals Industry Association.
This standard is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243).
This standard was drafted. Xiamen Jinlu Special Alloy Co., Ltd., Zigong Cemented Carbide Co., Ltd., Chongyi Zhangyuan Tungsten Co., Ltd.
Limited company, Zhuzhou Cemented Carbide Group Co., Ltd.
The main drafters of this standard. Fan Zhirui, Li Dongjin, Jiang Tao, Zou Jianping, Li Juan, Li Jinzhong, Yang Jun.
The previous versions of the standards replaced by this standard are.
---GB/T 2078-1980, GB/T 2078-1987, GB/T 2078-2007.
Carbide with rounded holes
Indexable insert size
1 Scope
This standard specifies the dimensions of carbide indexable inserts with rounded corners, rounded mounting holes and a 0° relief angle.
This standard is applicable to rounding and rounding on cutting and drilling tools by means of top and hole clamping or only hole clamping.
Shaped mounting holes and carbide indexable inserts with a 0° relief angle.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
Classification and use of ISO 513 hard-cutting materials for machining Large-scale and use group classification codes (Classificationand
Applicationofhardcuttingmaterialsformetalremovalwithdefinedcuttingedges-Designationofthe
Maingroupsandgroupsofapplication)
ISO 1832 cutting tool type indexing rules for cutting tools (Indexableinsertsforcuttingtools-Designa-
Tion)
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain a terminology database for standardization at the following URL.
4 blade type
The carbide indexable inserts included in this standard are of the following types.
---TN. an equilateral triangle blade with a 0° back angle;
---SN. square blade with a 0° back angle;
---CN. a diamond-shaped blade with a 0° back angle and a 80° nose angle;
---DN. a diamond-shaped blade with a 0° back angle and a 55° nose angle;
---WN. a hexagonal blade with a 0° back angle and a 80° nose angle;
---VN. Diamond blade with 0° back angle and 35° nose angle.
The indexable inserts included in this standard can be double-sided with chipbreakers, either with a chipbreaker on one side or without chipbreakers on both sides.
This standard does not specify the shape and size of the chip breaker. If necessary, you can attach a schematic diagram or explain it. Table B.1 gives the blade
The range of sizes.
GB/T 2078-2019
(Carbide indexable insert size with rounded round holes)
ICS 77.160
H70
National Standards of People's Republic of China
Replace GB/T 2078-2007
Carbide with rounded holes
Indexable insert size
Dimensionsofindexablehardmetal(carbide)insertswithroundedcorners,
Withcylindricalfixinghole
[ISO 3364.2017, Indexablehardmetal(carbide)insertswithroundedcorners,
Withcylindricalfixinghole-Dimensions,IDT]
Published on.2019-08-30
2020-07-01 implementation
State market supervision and administration
China National Standardization Administration issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 2078-2007 "Carbide indexable insert size with rounded hole fixing", and GB/T 2078-
Compared with.2007, the main technical changes except editorial changes are as follows.
--- Added VN model blade (see Chapter 3);
--- Modified the requirements for dimensional tolerance, not limited to M (see 4.1,.2007 version 4.1);
--- Added some models of blades and their dimensions (see Chapter 7);
--- Removed Appendix A, and the remaining appendix numbers were modified accordingly (see Appendix A of the.2007 edition).
This standard uses the translation method equivalent to ISO 3364.2017 "Carbide indexable insert size fixed with rounded holes".
The documents of our country that have a consistent correspondence with the international documents referenced in this standard are as follows.
---GB/T 2075-2007 Classification and use of hard cutting materials for cutting Large group and use group classification code
(ISO 513.2004, IDT);
---GB/T 2076-2007 Index for indexable inserts for cutting tools (ISO 1832.2004, MOD).
This standard has made the following editorial changes.
--- Modified the standard name.
This standard was proposed by the China Nonferrous Metals Industry Association.
This standard is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243).
This standard was drafted. Xiamen Jinlu Special Alloy Co., Ltd., Zigong Cemented Carbide Co., Ltd., Chongyi Zhangyuan Tungsten Co., Ltd.
Limited company, Zhuzhou Cemented Carbide Group Co., Ltd.
The main drafters of this standard. Fan Zhirui, Li Dongjin, Jiang Tao, Zou Jianping, Li Juan, Li Jinzhong, Yang Jun.
The previous versions of the standards replaced by this standard are.
---GB/T 2078-1980, GB/T 2078-1987, GB/T 2078-2007.
Carbide with rounded holes
Indexable insert size
1 Scope
This standard specifies the dimensions of carbide indexable inserts with rounded corners, rounded mounting holes and a 0° relief angle.
This standard is applicable to rounding and rounding on cutting and drilling tools by means of top and hole clamping or only hole clamping.
Shaped mounting holes and carbide indexable inserts with a 0° relief angle.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
Classification and use of ISO 513 hard-cutting materials for machining Large-scale and use group classification codes (Classificationand
Applicationofhardcuttingmaterialsformetalremovalwithdefinedcuttingedges-Designationofthe
Maingroupsandgroupsofapplication)
ISO 1832 cutting tool type indexing rules for cutting tools (Indexableinsertsforcuttingtools-Designa-
Tion)
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain a terminology database for standardization at the following URL.
4 blade type
The carbide indexable inserts included in this standard are of the following types.
---TN. an equilateral triangle blade with a 0° back angle;
---SN. square blade with a 0° back angle;
---CN. a diamond-shaped blade with a 0° back angle and a 80° nose angle;
---DN. a diamond-shaped blade with a 0° back angle and a 55° nose angle;
---WN. a hexagonal blade with a 0° back angle and a 80° nose angle;
---VN. Diamond blade with 0° back angle and 35° nose angle.
The indexable inserts included in this standard can be double-sided with chipbreakers, either with a chipbreaker on one side or without chipbreakers on both sides.
This standard does not specify the shape and size of the chip breaker. If necessary, you can attach a schematic diagram or explain it. Table B.1 gives the blade
The range of sizes.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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