GB/T 14300-2007Straight flute drill with indexable inserts (English PDF)

Foreword

This standard replaces GB/T 14300-1993 "indexable drill with straight grooves." This standard and GB/T 14300-1993 compared to the main changes are as follows:

--- Added "foreword";

--- Modify the "normative references";

--- Added "Weldon shank drill with the types and basic dimensions";

--- Increased "TMG21 shank drill with the types and basic dimensions";

--- Expanding the basic size specifications;

--- Original standard "technical requirements" of the content of the words "appearance and surface roughness," "material and hardness";

--- Abolition of the "performance test requirements";

--- Modify the "logo and packaging" requirements;

--- Added "tag example";

--- Added "Appendix C", "Appendix D", "Appendix E", "Appendix F". The Standard Appendix A, Appendix C, Appendix E is normative appendix, Appendix B, Appendix D, Annex F is informative appendix. The standard proposed by China Machinery Industry Federation. This standard tool by the National Standardization Technical Committee (SAC/TC91) centralized. This standard was drafted. Taiyuan Tools Factory. The main drafters. Zhang Jinfeng, any spring. This standard replaces the standards previously issued as follows:

--- GB/T 14300-1993. Indexable drill with straight grooves

1 Scope

GB/T 14300-2007 is the Chinese national standard on straight flute drill with indexable inserts, in the field of manufacturing engineering. The /T suffix marks it as a recommended standard: it is not compulsory by itself, but it becomes binding as soon as a contract, a tender or a customer specification calls it up - which in practice is how most foreign buyers meet it. It was issued on 26 July 2007 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China, and has been in force since 1 December 2007. Classification: ICS 25.100.30, CCS J41. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.

This standard specifies the 2 ° beveled flat shank, Weldon shank, Morse taper shank and TMG21 indexable drill with straight grooves (hereinafter referred to as Shallow holes drilled) the type size, appearance, and surface roughness, and material hardness, marking and basic requirements for packaging. This standard applies to a diameter of 16mm ~ 82mm, drilling depth is not greater than twice the diameter of the drill, cooling liquid injected by the blade mounted sink Hole carbide indexable insert drill with.

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 1443 from machine tools and tool handles with clip cone ( GB/T 1443-1996, eqv ISO 296.1991)

GB/T 2075 Classification and use of cutting large groups and groups of application of hard cutting materials classification code ( GB/T 2075- 2007, ISO 513.2004, IDT)

GB/T 2080 counterbore carbide indexable inserts ( GB/T 2080-1987, eqv ISO 6987-1. 1983)

3 Type and size

3.1 2 ° beveled flat shank drill with

3.1.1 Basic dimensions in Figure 1 and Table 1.

3.1.2 Type size shank in accordance with Appendix A, with the shank portion mating hole type size See Appendix B. Figure 1