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GB/T 21952-2023 English PDF

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Q: Should I purchase the latest version GB/T 21952-2023?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 21952-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$419.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 21952-2023: Polycristalline diamond inserts, tipped - Dimensions, types
Status: Valid

GB/T 21952: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21952-2023	419	Add to Cart	4 days	Polycristalline diamond inserts, tipped - Dimensions, types	Valid
GB/T 21952-2008	559	Add to Cart	3 days	Polycrystalline diamond inserts, tipped -- Dimensions	Obsolete

Similar standards

GB/T 33524.2 GB/T 5104 GB/T 972 GB/T 21951 GB/T 21950

Basic data

Standard ID: GB/T 21952-2023 (GB/T21952-2023)
Description (Translated English): Polycristalline diamond inserts, tipped - Dimensions, types
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J41
Classification of International Standard: 25.100.01
Word Count Estimation: 22,272
Date of Issue: 2023-09-07
Date of Implementation: 2024-04-01
Older Standard (superseded by this standard): GB/T 21952-2008
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 21952-2023: Polycristalline diamond inserts, tipped - Dimensions, types

---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.
ICS 25.100.01 CCSJ41 National Standards of People's Republic of China Replace GB/T 21952-2008 Polycrystalline diamond blade types and sizes (ISO 16463.2014,MOD) Published on 2023-09-07 2024-04-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document replaces GB/T 21952-2008 "Dimensions of polycrystalline diamond blades". Compared with GB/T 21952-2008, except for the structure In addition to adjustments and editorial changes, the main technical changes are as follows. a) Change the blade shape "hexagon" to "convex triangle" (see 4.1, 3.1 of the.2008 version); b) Change "normal relief angle" to "normal relief angle" and delete the normal relief angle 25° (F) (see 4.2, 3.2 of the.2008 version); c) Delete the tool tip arc radius 2.0mm, 2.5mm, and 3.0mm (see 3.3 of the.2008 edition); d) The rε value of code TC·W110208F is changed from 0.3 to 0.8, and the m value of code TP·W110208F is changed from 9.322 to 8.731 (see Table 1, Table 1 of the.2008 edition); e) The l value of codes SP·N090302F, SP·N090304F, SP·N090308F is changed from 9.5 to 9.525 (see Table 4, Table 4 of the.2008 edition); f) The m1 value of code CP·W09T302F was changed from 2.426 to 2.534, and the m2 value was changed from 1.333 to 1.392; code name CP· The m1 value of W120404F was changed from 3.088 to 3.308, and the m1 value of code CP·W120408F was changed from 3.308 to 3.088 (see Table 5,.2008 version of Table 5); g) The code name SE·W1204EDR is changed to SP·W1204EDR, and the code name SE·W1204EDL is changed to SP·W1204EDL (see Table 8,.2008 version of Table 8). This document has been modified to adopt ISO 16463.2014 "Dimensions and Types of Inlaid Polycrystalline Diamond Blades". A "Terms and Definitions" chapter has been added to this document. The technical differences between this document and ISO 16463.2014 and their reasons are as follows. ---The normal relief angle is increased by 15° (D) (see 4.2), which is covered in Tables 8 and 9; ---The tool tip arc radius is increased by 0.1mm (see 4.3), which is covered in Table 10; ---Replaced ISO 1832 (see 4.4~4.6, 5.1) with the normatively quoted GB/T 2076 to adapt to my country's technical conditions; ---The material code DP05 is changed to DP (see 5.2 and 5.3) to facilitate the use of this document; ---Replaced ISO 513 (see 5.2, 5.3, Chapter 8 and Chapter 10) with the normatively quoted GB/T 2075 to adapt to my country's technology technical conditions; ---Change the notes in 6.1~6.10 to requirement clauses to facilitate the use of this document; ---The m value of code TP·W110208F was changed from 9.322 to 8.731 (see Table 1), and the value is wrong; ---The l value of the codes SP·N090302F, SP·N090304F and SP·N090308F was changed from 9.5 to 9.525 (see Table 4). The value is wrong; ---The m1 value of code CP·W09T302F is changed from 2.426 to 2.534, the m2 value is changed from 1.333 to 1.392, code CP· The m1 value of W120404F was changed from 3.088 to 3.308, and the m1 value of code CP·W120408F was changed from 3.308 to 3.088 (see Table 5), the value is wrong; ---Replaced ISO 6987 and ISO 3365 (see Chapter 9) with normative references GB/T 2080 and GB/T 2081 respectively, to Adapt to my country's technical conditions. The following editorial changes have been made to this document. ---In order to coordinate with the existing standards, the name of the standard is changed to "Types and Dimensions of Inlaid Polycrystalline Diamond Blades"; ---For ease of use, ISO 883 and ISO 6987 are replaced with the informative GB/T 2079 and GB/T 2080 (see Section 1 Chapter), replacing ISO 1832 with the informative reference GB/T 2076 (see 5.2 and 5.3); ---For ease of use, change the symbols "α and α'n" in Table A.1 to "α'n", and refer to the corresponding references in this document to "Figure 6, Figure 7, Table 6, Table 7" is changed to "Figure 8, Figure 9, Table 8, Table 9"; ---Added references. Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents. This document is proposed by China Machinery Industry Federation. This document is under the jurisdiction of the National Tool Standardization Technical Committee (SAC/TC91). This document was drafted by. Chengdu Tool Research Institute Co., Ltd., Zhengzhou Diamond Precision Manufacturing Co., Ltd., Xiamen Jinlu Special Alloy Co., Ltd. Co., Ltd., Taizhou Ruian Carbide Tools Co., Ltd., Weihai Weihard Tools Co., Ltd., Shenzhen Yuhe Diamond Tools Co., Ltd. company. The main drafters of this document. Chen Wenlang, Shen Shichang, Zhang Pengfei, Jiang Tao, Song Ji, Zhang Jiying, Duan Wenhong, Chen Yun, Zou Lingli, Qiu Yi, Xie Wen. This document was first published in.2008 and this is the first revision. Polycrystalline diamond blade types and sizes

1 Scope

This document specifies the requirements for blades whose cutting parts are inlaid with polycrystalline diamond (DP) whose blade shape complies with GB/T 2079 and GB/T 2080. Types and sizes. This document applies to the manufacture of polycrystalline diamond inserts.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document. GB/T 2075 Classification and usage of hard cutting materials for cutting processing Classification codes of large groups and usage groups (GB/T 2075- 2007,ISO 513.2004,IDT) GB/T 2076 Rules for model representation of indexable inserts for cutting tools (GB/T 2076-2021, ISO 1832.2017, MOD) GB/T 2080 Dimensions of indexable carbide inserts with rounded corners and countersunk holes (GB/T 2080-2007, ISO 6987.1998, IDT) GB/T 2081 Dimensions of carbide indexable milling inserts with wiper edges and no fixed holes (GB/T 2081-2018, ISO 3365. 2016,IDT)

3 Terms and definitions

There are no terms or definitions to be defined in this document.

4 Blade shape and structure

4.1 Blade shape The shapes of the blades are. triangle (T), square (S), rhombus 80° (C), rhombus 55° (D), rhombus 35° (V), and convex triangle (W). 4.2 Normal relief angle αn The normal relief angles αn are. 5° (B), 7° (C), 11° (P), 15° (D) and 20° (E). 4.3 Cutting edge tip Turning inserts. with tip radius rε. 0.1mm, 0.2mm, 0.4mm, 0.8mm, 1.2mm and 1.6mm. Milling insert. with wiper edge. Note. The tool tip structure that does not participate in cutting is optional. 4.4 Tolerance classes The tolerance level should be in accordance with GB/T 2076.In Tables 1 to 10, the tolerance grade codes are represented by black dots (·). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 21952-2023_English be delivered?

Answer: Upon your order, we will start to translate GB/T 21952-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 21952-2023_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 21952-2023_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 21952-2023?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 21952-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.