GOST 28281-89 Disc cutters for cutting sprocket teeth for drive roller and bushing chains. Specifications

GOST 28281-89

INTERSTATE STANDARD

DISC CUTTERS FOR CUTTING SPROCKET TEETH FOR DRIVE ROLLER AND BUSH CHAINS

TECHNICAL CONDITIONS

Moscow

Standardinform

2006

INTERSTATE STANDARD

Date of introduction 07/01/90

This standard applies to disc cutters for cutting sprocket teeth in accordance with GOST 591 for single-row and multi-row drive roller and bushing chains in accordance with GOST 13568 and GOST 21834.

CONTROL AND TEST METHODS

4.1. The appearance of the cutters is controlled using a magnifying glass LP-1-4´ in accordance with GOST 25706.

4.2. The parameters of cutters must be controlled by measuring instruments that have an error of no more than:

when measuring linear dimensions - the values ​​​​established by GOST 8.051;

when monitoring parameters 2 - 7 clause 2.7 - values ​​​​established by GOST 17336.

4.3. The roughness parameters of cutter surfaces must be controlled: Rz - on PSS type devices in accordance with GOST 9847, R

a - on profilometers according to GOST 19300.

It is allowed to check the roughness parameters by comparison with control samples that have the values ​​of the roughness parameters specified in clause 2.5, or with surface roughness samples in accordance with GOST 9378. The comparison is carried out using a magnifying glass LP-1-4´ in accordance with GOST 25706.

4.4. Tests of cutters must be carried out on milling machines that meet the standards of accuracy and rigidity established for them.

4.5. The hardness of cutters is controlled according to GOST 9013 using TR type devices according to GOST 23677.

4.6. Milling cutters should be tested on workpieces made of steel grade 45 according to GOST 1050, hardness 170 ... 197 HB.

4.7. Milling cutters are tested to full depth:

in one pass at t

£25.4mm;

in two passes at 25.4 < t

£50.8mm;

in three passes at t

> 50.8 mm.

4.8. Industrial oil 20 A according to GOST 20799 with a flow rate of at least 40 l/min should be used as a cutting fluid.

4.9. Performance tests should be carried out in the modes indicated in table. 4.

Table 4

4.10. Tests of cutters for performance should be carried out within 10 minutes for a pitch of up to 50.8 mm and 15 minutes for a pitch of more than 50.8 mm.

After testing, the cutter should not have chipped or crumpled cutting edges and should be suitable for further work.

Disc cutters

• Home /
• Directory /
• Disc cutters

Three-sided disk cutters GOST 3755-78

Used for milling grooves and in sets of cutters.

Dimensions (mm) and designation:

Notes:

1. Example of a symbol for a cutter with a diameter of D=80mm, width B=12mm, version 1, for a groove with a maximum deviation according to P9: Mill 2240-0209-P9 GOST 3755-78

2. Keyway dimensions according to GOST 9472-83.

3. At the request of consumers, it is possible to manufacture cutters with an increased number of teeth.

4. Basic technical requirements according to GOST 1695-80.

5. At the request of consumers, it is possible to manufacture cutters with the required width tolerances.

Three-sided cutters with insert knives made of high-speed steel (GOST 1669-78)

Dimensions (mm) and designation:

Notes:

1. 1st row cutters are preferred for use.

2. An example of a symbol for a milling cutter with a diameter of D=80mm and a width of B=25mm: Milling cutter 2241-0157 GOST 1669-78.

The same, cutter body with diameter Dk = 80 mm, width Bk = 25 mm: Cutter body 2241-0157/1 GOST 1669-78

3. Dimensions of knives according to GOST 6214-78.

4. Technical requirements according to GOST 1671-77.

Double-sided disk cutters with insert knives, equipped with hard alloy GOST 6469-83

Used in sets of cutters for milling end planes.

Notes:

An example of a symbol for a right-hand cutter with D = 90 and d = 32 mm with knives equipped with hard alloy grade T15K6: Mill 90 T15K6 GOST 6469-83

the same, left-handed: Milling cutter L90 T15K6 GOST 6469-83 .

2 Normative references

This standard uses normative references to the following interstate standards:

GOST 8.051 State system for ensuring the uniformity of measurements. Errors allowed when measuring linear dimensions up to 500 mm

GOST 2789 Surface roughness. Parameters and characteristics

GOST 1050 Metal products from non-alloyed high-quality structural and special steels. General technical conditions

GOST 4047 Segment circular saws for metal. Technical requirements

GOST 9013 (ISO 6508-86) Metals. Rockwell hardness test method

GOST 9378 (ISO 2632-1-85, ISO 2632-2-85) Surface roughness samples (comparison). General technical conditions

GOST 9472 (ISO 240-75) Fastening tools on mandrels. Types and sizes

GOST 10657 Round nuts with a slot at the end. Specifications

GOST 18088 Metal-cutting, diamond, wood-cutting, plumbing and auxiliary tools. Packaging, labeling, transportation and storage

GOST 19265 High-speed steel rods and strips. Specifications

GOST 23726 Metal-cutting and wood-cutting tools. Acceptance

GOST 24669 Straight splines for screws and screws. Dimensions

GOST 25706 Magnifying glasses. Types, basic parameters. General technical requirements

Note - When using this standard, it is advisable to check the validity of reference standards and classifiers on the official website of the Interstate Council for Standardization, Metrology and Certification (www.easc.by) or according to the indexes of national standards published in the states specified in the preface, or on official websites of the relevant national standardization bodies. If an undated reference is given to a document, then the current document should be used, taking into account all changes made to it. If a referenced document to which a dated reference is given is replaced, the specified version of that document should be used. If, after the adoption of this standard, a change is made to the referenced document to which a dated reference is made that affects the referenced provision, that provision shall apply without regard to that change. If the reference document is canceled without replacement, then the provision in which a reference to it is given applies to the part that does not affect this reference.

Preface

The goals, basic principles and general rules for carrying out work on interstate standardization are established by GOST 1.0 “Interstate standardization system. Basic provisions" and GOST 1.2 "Interstate standardization system. Interstate standards, rules and recommendations for interstate standardization. Rules for the development, adoption, updating and oVNIIINSTRUMENT" (JSC "VNIIINSTRUMENT") based on its own translation into Russian of the English version of the standard specified in paragraph 5

2 INTRODUCED by the Interstate Technical Committee for Standardization MTK 95 “Tool”

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (protocol dated June 25, 2014 N 45)

The following voted for the adoption of the standard:

4 By Order of the Federal Agency for Technical Regulation and Metrology dated June 3, 2015 N 535-st, the interstate standard GOST 2679-2014 (ISO 2296:2011) was put into effect as a national standard of the Russian Federation on January 1, 2016.

5 This standard is modified from the international standard ISO 2296:2011* “Fine-tooth and coarse-tooth metal circular saws. Metric series ("Metal slitting saws with fine and coarse teeth - Metric series", MOD) by introducing additional provisions.

________________

* Access to international and foreign documents mentioned in the text can be obtained by contacting the User Support Service. — Note from the database manufacturer.

The international standard was developed by technical committee for standardization ISO/TS 29 "Tools", subcommittee SC 2 "High-speed cutting steel tools and accessories" of the International Organization for Standardization (ISO).

Additional provisions are given in sections 4-6, subsection 3.2, paragraphs 3.1.1, 3.1.2, 3.1.4, Appendix A and are framed by thin lines or highlighted in bold italics*. Additional requirements have been introduced for the possibility of manufacturing milling cutters at enterprises.

________________

* In the original, the designations and numbers of standards and regulatory documents in the text are given in regular font; referenced documents, shown in the original in bold italics, have been appended with appropriate notes. — Note from the database manufacturer.

References to international standards that have been adopted as interstate standards have been replaced in the “Normative References” section and the text of the standard with references to the corresponding modified interstate standards.

References to international standards that are not accepted as interstate standards are replaced in the section “Normative references” and the text of the standard with references to the corresponding interstate standards.

A list of technical deviations with explanations of the reasons for their introduction is given in Appendix DA. The name of this standard has been changed relative to the name of the specified international standard to bring it into compliance with GOST 1.5 (subsection 3.6)

6 INSTEAD GOST 2679-93

7 REPUBLICATION. July 2022

Information on the entry into force (termination) of this standard and amendments to it on the territory of the above states is published in the indexes of national standards published in these states, as well as on the Internet on the websites of the relevant national standardization bodies.

In case of revision, modification or cancellation of this standard, the relevant information will be published on the official website of the Interstate Council for Standardization, Metrology and Certification in the catalog “Interstate Standards”