GB/T 6117.3-2010End mills -- Part 3: Milling cutters with 7: 24 taper shanks (English PDF)

Foreword

GB/T 6117 "end mill" consists of three parts.

--- Part 1. straight shank end mills;

--- Part 2. Morse taper shank end mills;

--- Part 3. 7.24 shank cutter.

This part of GB/T 36117 Part of.

The partial modification of international standards ISO 1641-3:2003 "and end mills Slot drills - Part 3. 7.24 shank cutter." this section according to ISO 1641-3:2003 redrafted.

This part of ISO 1641-3:2003 has compared the following editorial changes and technical differences.

--- Remove the foreword to international standards;

--- Used instead of using decimal comma ",". ",";

--- Normative documents column items, ISO 297 with the standard of GB/T 3837 in place;

--- Increase the marked sample;

--- Increased coarse teeth, tooth, Teeth fine teeth;

--- Remove the ISO 1641-3:2003 in ball mills and keyway cutters legend;

--- Remove the ISO 1641-3:2003 Table 1 keyway cutters, short size, made a few adjustments in the diameter range 1;

--- Remove the ISO 1641-3:2003 in Table 2;

--- Remove the ISO 1641-3:2003 in 3.2 ATC 7/24 taper shank end mills.

This Part replaces GB/T 6117.3-1996 "mills - Part 3. 7.24 taper shank end mill type and size." this portion of the GB/T 6117.3-1996 have compared the following changes.

--- Added "foreword";

--- Canceled Chapter 3, "symbol" of the content;

--- Remove the tag example b) content;

--- According to GB/T 1.1 format requirements for the preparation of editorial changes were made.

This part is proposed by China Machinery Industry Federation.

This part of the tool by the National Standardization Technical Committee (SAC/TC91) centralized.

This part mainly drafted by. Chengdu into a tool Group Co., Ltd., Chengdu Tool Research Institute, Shanghai Tool Works Co., Ltd.

1 Scope

GB/T 6117 provisions of this part of the manual tool change 7.24 taper shank end mill of the basic requirements of the type, size and marking like.

This section applies to a larger diameter than 23.6mm ~ 95mm of 7.24 taper shank end mills.

2 Normative references

The following documents contain provisions which, through reference in this part of the GB/T 6117, constitute provisions of this part. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

GB/T 3837 7.24 taper shank tool manually (GB/T 3837-2001, eqv ISO 297. 1988)

3 Type and size

3.1 7.24 shank cutter type shown in Figure 1, the size shown in Table 1.

7.24 taper shank end mill according blade length is divided into different standard series and long series.

7.24 taper shank end mill dimensions and tolerances according to GB/T 3837.

figure 1

Table 1 millimeters

Diameter range

Recommended diameter l L Standard series standard series long series long series 7.24 Tapered No.

Teeth

Coarse teeth tooth serrations 23.6 30 37.5 30 37.5 47.5