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GB/T 6078-2016 English PDF

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GB/T 6078-2016: Centre drills
Status: Valid

GB/T 6078: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 6078-2016English219 Add to Cart 3 days [Need to translate] Centre drills Valid GB/T 6078-2016
GB/T 6078.1-1998English199 Add to Cart 2 days [Need to translate] Centre drills. Part 1: Centre drills for centre holes without protecting chamfers. Type A. Dimensions Obsolete GB/T 6078.1-1998
GB/T 6078-1985EnglishRFQ ASK 3 days [Need to translate] Center drills Obsolete GB/T 6078-1985

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Basic data

Standard ID GB/T 6078-2016 (GB/T6078-2016)
Description (Translated English) Centre drills
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J41
Classification of International Standard 25.100.30
Word Count Estimation 11,142
Date of Issue 2016-02-24
Date of Implementation 2016-09-01
Older Standard (superseded by this standard) GB/T 6078.1-1998; GB/T 6078.2-1998; GB/T 6078.3-1998; GB/T 6078.4-1998
Regulation (derived from) National Standard Announcement No
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

GB/T 6078-2016: Centre drills

---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.
Centre drills ICS 25.100.30 J41 National Standards of People's Republic of China Replacing GB/T 6078.1 ~ 6078.4-1998 Center drill Centredrils (ISO 866. 1975, MOD) Issued on. 2016-02-24 2016-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is GB/T 6078.1-1998 "Center drills Part 1. Centre without retaining cone drill -A type type and size", GB/T 6078.2-1998 "center drill Part 2. with care center cone -B type diamond type and size ", GB/T 6078.3-1998" center drill - part 3. arc-type center drill -R types and dimensions "and GB/T 6078.4-1998 "center drill Part 4. technology" combined with changes. This standard replaces GB/T 6078.1-1998, GB/T 6078.2-1998, GB/T 6078.3-1998 and GB/T 6078.4-1998. This standard and GB/T 6078.1-1998, GB/T 6078.2-1998, GB/T 6078.3-1998 and GB/T 6078.4-1998 compared to, the following technical differences. 4 section --- the original standards into a single standard; --- Added "can also use high speed steel (Code HSS-E) to create" (see 5.3); --- Remove the ISO foreword; --- Appendix B to increase in the test parameters of high speed steel drill center. This standard uses redrafted law revision of international standards ISO 866. 1975 "centers without retaining cone drill -A type", ISO 2540. 1973 "center with nursing cone drill -B type" and ISO 2541. 1972 "Arc -R-type center drill. " This standard and ISO 866. 1975, ISO 2540. 1973 and ISO 2541. 1972 compared to major differences are. --- Marking an increase of 4, 5 Technical requirements 6 performance tests, marking and packaging 7, Annex A, Annex B. The standard proposed by China Machinery Industry Federation. This standard tool by the National Standardization Technical Committee (SAC/TC91) centralized. This standard is mainly drafted by. Sichuan days tiger Tools Co., Ltd., Ningbo Chong Heng Tools Co., Ltd. Chengdu Tool Research Institute. The main drafters of this standard. Wang filial descent, before Liu Lun, Zhao Hongjun, Chen Shichang, Jiangwen Yun, Zhao Jun. The standard standard replaces the previous editions. --- GB/T 6078-1985; --- GB/T 6078.1-1998; --- GB/T 6078.2-1998; --- GB/T 6078.3-1998; --- GB/T 6078.4-1998. Center drill

1 Scope

This standard specifies the basic requirements for the center drill type and size, technical requirements, labeling and packaging. This standard applies to the processing GB/T 145 in A, B type, R-type center hole drilled in the center.

2 Normative references

The following documents for the application of this document is essential. For cited documents with dates, only the dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document. GB/T 145 center hole

3 type and size

3.1 A-type center drill pattern in Figure 1, in line with the size dimension series in Table 1. Figure 1 A-type center drill Table 1 A-type center drill size in millimeters Basic size limit deviation basic size limit deviation

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