FEDERAL AGENCY FOR TECHNICAL REGULATION AND METROLOGY
NATIONAL
STANDARD
RUSSIAN
FEDERATIONS
GOSTR
2008
(ISO 3337: 2000)
T-SLOT MILLS
Technical conditions
ISO 3337: 2000
T-slot cutters with cylindrical shanks and Morse taper shanks having tapped hole
Official edition
Stack of forms
GOST R 53004-2008
Foreword
The goals and principles of standardization in the Russian Federation are established by the Federal Law of December 27, 2002 No. 184-FZ "On technical regulation", and the rules for the application of national standards of the Russian Federation - GOST R 1.0-2004 "Standardization in the Russian Federation. Basic provisions "
Information about the standard
1 PREPARED by Open Joint Stock Company OJSC "VNIIINSTRUMENT"
2 INTRODUCED by the Technical Committee for Standardization TK 95 "Instrument"
3 APPROVED AND PUT INTO EFFECT by the Order of the Federal Agency for Technical Regulation and Metrology of November 11, 2008 No. 297 * st
4 This standard incorporates the modified basic regulations of the international standard ISO 3337: 2000, "T-slot cutters with cylindrical shanks and Morse shanks with a threaded hole for T-slots" taper shanks having tapped hole ", MOD).
See Annex A.
At the same time, additional provisions, taking into account the needs of national standardization, are given in sections 1.2.4. 5.6. in clauses 3.1.5 - 3.1.8. in subsection 3.2 and highlighted in italics.
The name of this standard has been changed relative to the name of the specified international * standard to bring it into line with GOST R 1.5-2004 (clause 3.5).
5 INTRODUCED FOR THE FIRST TIME
Information about changes to this standard is published in the annually published information index "National standards". and the text of changes and amendments - in the monthly published information indexes "National Standards". In case of revision (replacement) or cancellation of this standard, the corresponding notice will be published in the monthly published information index "National Standards". Relevant information, notice and texts are also posted in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet
© Standartinform. 2009
This standard may not be reproduced in whole or in part, replicated and distributed * as an official publication without the permission of the Federal Agency for Technical Regulation and Metrology.
GOST R 53004-2008
NATIONAL STANDARD OF THE RUSSIAN FEDERATION
T-Slot cutters Specification T-slot cutters. Specifications
Date of introduction - 2010 - 01 - 01
1 area of use
This standard applies to cutters made of high-speed steel for processing T-shaped grooves in accordance with GOST 1574.
2 Normative references
8 of this standard, normative references to the following standards are used:
GOST R 52965-2008 Cylindrical shanks for cutters. Basic dimensions GOST 8.051-81 State system for ensuring the uniformity of measurements. Errors allowed when measuring linear dimensions up to 500 mm
GOST 1050-88 Rolled stock, calibrated with a special surface finish from high-quality carbon structural steel. General specifications GOST 1412-85 Lamellar graphite iron for castings. Grades GOST 1574-91 T-shaped grooves processed. Dimensions GOST 2789-73 Surface roughness. Parameters and characteristics GOST 2848-75 Tool cones. Tolerances. Methods and means of control GOST 4543-71 Alloy structural steel rolled products. Specifications GOST 9013-59 Metals. Methods for measuring hardness against Rockwell GOST 9378-93 Surface roughness samples (comparison). General specifications
GOST 18088-83 Metal-cutting, diamond, wood-cutting, fitting-assembly and auxiliary tools. Packaging, labeling, transportation and storage
GOST 19265-73 Bars and strips from high-speed steel. Specifications GOST 23726- 79 Metal-cutting and wood-cutting tools. Acceptance of GOST 25706-83 Magnifiers. Types, basic parameters. General technical requirements
Application - When using this standard, it is advisable to check the operation of the reference standards in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet or on the annually published information index "National Standards *, which was published as of January 1 of the current year , and according to the relevant monthly information signs published in the current year. If the reference standard is replaced (changed), then when using this standard, the replacing (modified) standard should be followed. If the reference standard is canceled without replacement. The provision in which a link to it is made applies to the extent that this link is not affected.
Official edition
GOST R 53004-2008
3 Technical requirements
3.1 Types and basic dimensions
3.1.1 Cutters should be made of types:
1 - with normal teeth:
2 - with coarse teeth.
3.1.2 Type 1 cutters are manufactured in the following versions:
1 - with a smooth cylindrical shank;
2 - with a cylindrical shank with a hatch:
3 - with a cylindrical threaded shank;
4 - with a Morse taper shank.
Type 2 cutters are manufactured only in version 4 - with a Morse taper shank.
3.1.3 The main dimensions of cutters of versions 1.2.3 must correspond to those indicated in Figure 1 and Table 1.
Picture 1
GOST R 53004-2008
Table 1
Dimensions in millimeters
|
Nominal T-shaped | ||||||||
3.1.4 The main dimensions of cutters of version 4 must correspond to those indicated in Figure 2 and in Table 2.
table 2
Dimensions in millimeters
GOST R 53004-2008
End of table 2
Dimensions in millimeters
|
Nominal T-shaped |
Number of teeth for type cutters |
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An example of a conventional designation of a cutter of type 1. version 1.with a nominal groove size of 6 mm:
Milling cutter 1 - 1 - 6 GOST R 53004-2006
Also. version 2:
Milling cutter 1-2-6 GOSTR53004-2008
Also. version 3:
Milling cutter 1-3-6 GOSTR53004-2008
Also. version 4:
Milling cutter 1 - 4 - 6 GOST R 53004-2008
Also. cutters of type 2. execution 4.with a nominal groove size of 12 mm:
Milling cutter 2 - 4-12 GOSTR53004-2008
3.1.5 Shanks of cutters of versions 1.2.3 - in accordance with GOST R 52965.
3.1.6 Dimensions of Morse tapers - according to GOST 25557.
3.1.7 Center holes - in accordance with GOST 14034.
3.1.8 Type 1 cutters are made with a flute angle of c = 10 *: type 2 cutters with a flute angle to - 15 .. .25 *.
3.2 Features
3.2.1 Cutters should be made of high-speed steel in accordance with GOST 19265.
3.2.2 Cutters should be welded. No sinks or lack of penetration are allowed in the welding place. arson and burnout of metal, ring cracks and fistulas.
Cutters of versions 1. 2.3 for grooves with a nominal size of up to 12 mm inclusive, it is allowed to be made in one piece.
3.2.3 Shanks of welded cutters should be made of steel grade 40X in accordance with GOST 4543 or from steel grade 45 in accordance with GOST 1050.
3.2.4 The hardness of the working part of the cutters must be 63 .. .66 HRC.
The hardness of the working part of cutters made of high-speed steel with a vanadium content of at least 3% and cobalt at least 5% should be higher by 1 - 2 HRC units.
The hardness of the cylindrical shank of solid (non-seary) cutters should be 37 ... .57 HRC.
The hardness of the cylindrical shank of welded cutters in the area of at least V 2 length from the end of the shank and the end part of the tapered shank should be 32 .. .52 HRC.
3.2.5 There should be no decarburized layer and places with low hardness on the working surface of the cutters.
GOST R 53004-2008
3.2.6 On the surface of the cutters there should be no cracks, traces of corrosion: on the ground surfaces - rough, chipped places: on the cutting edges - nicks, the clamp: on the shank and center holes - burrs.
3.2.7 The parameters of the grouting of the surfaces of the cutters in accordance with GOST 2789 should be, μm, not more than:
Rz 3.2- for front and back surfaces of teeth:
Ra 0.63 - for shank surface:
Rz 10 - for the surfaces of the backs of the teeth, neck and chip grooves:
Rz 20 - for other surfaces.
3.2.6 On the back surface of the cutter teeth along the cutting edges, a cylindrical tape with a width of not more than 0.05 mm is allowed.
3.2.9 Limit deviations of the sizes of cutters should be. mm. no more:
± JT16 / 2 - for cutter length L;
Accuracy AT8 in accordance with GOST 2848 - for Morse taper.
3.2.10 The tolerance of the radial runout of the main cutting edges of the milling cutters' teeth relative to the shank axis must be. mm. no more:
0.02 - on two adjacent teeth - for cutters with a diameter of up to 40 mm incl .:
0.04 - on the whole cutter "" "" 40 "":
0.03 - on two adjacent teeth - for cutters with a diameter of St. 40 mm:
0.05 - on the entire cutter p "p" 40 p.
3.2.11 The tolerance of the face runout of the working part of the cutters relative to the shank axis must be. mm. no more:
0.04 - for cutters with a diameter of up to 40 mm ect .:
0.05 rub. 40 mm.
3.2.12 Average 7 and the established T y the durability periods of cutters when processing cast iron grade SCH18 in accordance with GOST 1412 and steel grade 45 in accordance with GOST 1050 under the test conditions given in section 5. should be: T-60 min. T g - 25 min.
3.2.13 The criterion for bluntness of cutters is the achievement of permissible wear on the flank surface. specified in table 3.
Table 3
in millimeters
|
Cutter diameter d |
Permissible wear |
|
|
when processing cast iron |
when processing the steppe |
|
GOST R 53004-2008
3.2.14 Marking
On the neck, phrases should be clearly marked:
Manufacturer's trademark;
The nominal size of the groove;
Steel grade of the working part.
It is allowed to mark the shank, provided that its geometric shapes are preserved, as well as to make a recess on the shank for marking.
3.2.15 Transport marking and marking of consumer containers - in accordance with GOST 18088.
3.2.16 Packing - in accordance with GOST 18088.
4 Acceptance rules
4.1 Acceptance of cutters - in accordance with GOST 23726.
4.2 Periodic tests of cutters for the average durability period are carried out once every three years, for the specified durability period - once a year. The tests are carried out on at least five cutters of any standard size.
4.3 It is allowed to carry out tests at the consumer.
5 Methods of inspection and testing
5.1 The appearance of the cutters is controlled visually using a magnifying glass LP-1-4 according to GOST 25706.
5.2 The hardness of the cutters is controlled in accordance with GOST 9013.
5.3 When controlling the dimensional parameters of cutters, methods and means of measurement are used, the error of which should be no more than:
The values specified in GOST 8.051 - when measuring linear dimensions:
35% tolerance for the checked angle "p angular"
25% of the tolerance for the checked parameter - when controlling the shape and location of surfaces.
5.4 The roughness of the surfaces of the cutters is checked by comparison with reference samples in accordance with GOST 9378 or with exemplary tools having roughness parameters no more than those specified in 3.2.7.
5.5 Tests of cutters should be carried out on milling machines for general and special purposes. corresponding to the standards of accuracy and rigidity established for them.
5.6 Mills of types 1, 2, versions 1, 2, 3 should be tested on workpieces made of gray cast iron grade SCh18 in accordance with GOST 1412 with a hardness of 180 ... 220 HB: milling cutters of type 2, version 4 - on workpieces made of steel grade 45 in accordance with GOST 1050 with a hardness of 197 ... 207 HB. A rectangular groove is pre-milled in the blanks. equal in width to the diameter of the neck (d t * 2) mm with an allowance along the bottom of the groove 1 - 2 mm.
5.7 When working on steel, a 5% (by weight) solution of emulsol in water with a flow rate of 6 - 8 l / min is used as a cutting fluid: when working on cast iron, it should be cooled with an air stream that removes chips from the cutting zone.
5.8 Tests of cutters for serviceability, average and established periods of durability should be carried out in the modes specified in Table 4.
Table 4
GOST R 53004-2008
End of TWBPITS 4
5.9 The total milling length during the performance test should be at least 500 mm. _
5.10_Acceptance values of the average T and the established T f of the durability periods must be at least: T - 68 min. T g - 28 min.
5.11 After the performance tests, there should be no chips on the cutting edges of the cutters, and they should be suitable for further work.
6 Transport and storage
6.1 Transportation and storage - in accordance with GOST 18088.
GOST R 53004-2008
Appendix A (mandatory)
Information on the correspondence of the referenced national standards to the referenced
international standards
Table A.1
|
Bulk national standard designation |
Designation and name of the referenced international standard and the symbol of the degree of its conformity with the referenced national standard |
|
GOST R 52965-2008 |
ISO 3336-1: 1996, Cylindrical shanks for milling cutters. Honor 1. Dimensions of smooth cylindrical shanks "(MOO) ISO 3336-2: 2007 Cylindrical shanks for milling cutters. Honor 2. Dimensions of cylindrical shanks with flats * (MOD) ISO 3336-3: 1996, Cylindrical shanks for milling cutters. Honor 3. Dimensions of Threaded End Shanks "(MOO) |
|
GOST 1574-91 |
ISO 299: 1987 Machine tables. T-slots and matching bolts "(NEO) |
|
GOST 9378-93 |
ISO 2632-1: 1985 Samples for comparison of roughness. Part 1. Specimens turned, ground, bored, milled, profiled and planed "(MOO) ISO 2632-2: 1985 Samples for comparison of roughness. Part 2. Specimens subjected to electrospark, sandblasting, shot blasting and polishing * (MOO) |
GOST R 53004-2008
UDC 621.914.22: 006.354 OKS 25.100.20 G23 OKP 39 1828
Key words: cutters. T-slots, smooth cylindrical shanks, flat shanks, threaded shanks, Morse taper
Editor R.G. GoerDoes * hell Technical editor V.I. Prusakova Proofreader U.B. Vuchnaya Computer-aided layout by V.I. Grischenlo
Completed and set 11.12.2006. Signed and stamped 16.01.2009. Format $ 0x84 "/ |. Offset paper. Arial typeface. Offset printing. Local printing l. 1.40. Academic. -D. Item 0.90. Circulation EEC 258. Order 9.
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Printed by the branch of FSUE "STANDARTINFORM" - type. "Moscow printer". 105062 Moscow. Lyalin lane, b
FEDERAL AGENCY
FOR TECHNICAL REGULATION AND METROLOGY
Foreword
The goals and principles of standardization in the Russian Federation are established by the Federal Law of December 27, 2002 No. 184-FZ "On technical regulation", and the rules for the application of national standards of the Russian Federation - GOST R 1.0-2004 "Standardization in the Russian Federation. Basic provisions "
Information about the standard
1 PREPARED by Open Joint Stock Company OJSC "VNIIINSTRUMENT"
2 INTRODUCED by the Technical Committee for Standardization TK 95 "Instrument"
3 APPROVED AND PUT INTO EFFECT by Order of the Federal Agency for Technical Regulation and Metrology No. 297-st dated November 11, 2008
4 This standard incorporates a modified framework of the international standard ISO 3337: 2000, T-slot cutters with cylindrical shanks and Morse shanks with a threaded hole for T-slots. taper shanks having tapped hole ", MOD).
Information on the conformity of the referenced national standards to the referenced international standards used in this standard as normative references is given in the appendix.
At the same time, additional provisions, taking into account the needs of national standardization, are given in the sections,,,,, in paragraphs -, in the subsection and are italicized.
The name of this standard has been changed from the name of the specified international standard to bring it in line with GOST R 1.5-2004 (clause 3.5).
5 INTRODUCED FOR THE FIRST TIME
Information about changes to this standard is published in the annually published information index "National Standards", and the text of changes and amendments is published in monthly published information indexes "National Standards". In case of revision (replacement) or cancellation of this standard, the corresponding notice will be published in the monthly published information index "National Standards". Relevant information, notice and texts are also posted in the public information system- on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet
GOST R 53004-2008
NATIONAL STANDARD OF THE RUSSIAN FEDERATION
Date of introduction - 2010 - 01 - 01
1 area of use
This standard applies to cutters made of high-speed steel for processing T-shaped grooves in accordance with GOST 1574.
2 Normative references
This standard uses normative references to the following standards:
Type 2 cutters are manufactured only in version 4 - with a Morse taper shank.
3.1.3 The main dimensions of cutters of versions 1, 2, 3 must correspond to those indicated in the figure and in the table.
Picture 1
Table 1
Dimensions in millimeters
|
d |
d 1
, |
d 2 |
l |
L |
f, |
q, |
Number |
|
|
11,0 |
53,5 |
|||||||
|
12,5 |
57,0 |
|||||||
|
16,0 |
62,0 |
|||||||
|
18,0 |
70,0 |
|||||||
|
21,0 |
74,0 |
|||||||
|
25,0 |
11,0 |
82,0 |
||||||
|
32,0 |
14,0 |
90,0 |
||||||
|
40,0 |
18,0 |
108,0 |
||||||
|
50,0 |
22,0 |
124,0 |
||||||
|
60,0 |
28,0 |
139,0 |
3.1.4 The main dimensions of cutters of version 4 must correspond to those indicated in the figure and in the table.
Picture 2
Table 2
Dimensions in millimeters
|
T-slot |
d h 12 |
d 1 no more |
l |
L |
f, no more |
q, no more |
Cone Morse |
Number of teeth for milling cutters types |
|
|
12,5 |
|||||||||
|
16,0 |
|||||||||
|
18,0 |
|||||||||
|
21,0 |
|||||||||
|
25,0 |
|||||||||
|
32,0 |
|||||||||
|
40,0 |
|||||||||
|
50,0 |
|||||||||
|
60,0 |
|||||||||
|
72,0 |
|||||||||
|
85,0 |
|||||||||
|
95,0 |
|||||||||
An example of a conventional designation of a cutter of type 1, version 1, with a nominal groove size of 6 mm:
Milling cutter 1 - 1 - 6 GOST R 53004-2008
The same, version 2:
Milling cutter 1 - 2 - 6 GOST R 53004-2008
The same, version 3:
Mill 1 - 3 - 6 GOST R 53004-2008
The same, version 4:
Milling cutter 1 - 4 - 6 GOST R 53004-2008
The same, cutters of type 2, version 4, with a nominal groove size of 12 mm:
Milling cutter 2 - 4 - 12 GOST R 53004-2008
3.1.6 The dimensions of the Morse tapers are in accordance with GOST 25557.
3.1.7Center holes are in accordance with GOST 14034.
3.2.2Cutters should be welded. In the place of welding, shells, lack of penetration, arson and metal burnout, ring cracks and holes are not allowed.
Cutters of versions 1, 2, 3 for grooves with a nominal size of up to 12 mm inclusive are allowed to be made in one piece.
3.2.3The shanks of welded cutters should be made of steel grade 40Hpo in accordance with GOST 4543 or from steel grade 45 in accordance with GOST 1050.
3.2.4 The hardness of the working part of the cutters must be 63.. .66 HRC.
The hardness of the working part of cutters made of high-speed steel with a vanadium content of at least 3% and cobalt at least 5% should be higher by 1 - 2 HRC units.
The hardness of the cylindrical shank of one-piece (non-welded) cutters shall be 37 ... .57 HRC.
The hardness of the cylindrical shank of welded cutters in the area not less than 1/2 of the length from the butt end of the shank and the end part of the tapered shank should be 32.. .52 HRC.
3.2.5The working surface of the cutters should not have a decarburized layer and places with low hardness.
3.2.6There should be no cracks or traces of corrosion on the surface of the cutters; on polished surfaces - rough, chipped places; on the cutting edges - nicks, burns; on the shank and center holes - burrs.
Table 3
In millimeters
4 Acceptance rules5.5 Tests of cutters should be carried out on milling machines for general and special purposes, corresponding to the standards of accuracy and rigidity established for them. 5.6 Mills of types 1, 2, versions 1, 2, 3 should be tested on workpieces made of gray cast iron grade SCH 18 in accordance with GOST 1412 with a hardness of 180 ... 220 HB; cutters type 2 version 4- on workpieces made of steel grade 45 in accordance with GOST 1050 with a hardness of 197 ... 207 HB. In the workpieces, a rectangular groove is pre-milled, equal in width to the diameter of the neck(d 1 + 2) mm with an allowance along the bottom of the groove 1- 2 mm. 5.7 A 5% (by mass) solution of emulsol in water with a flow rate of 6 is used as a cutting fluid when working on steel.- 8 l / min; when working on cast iron, cool with an air jet that removes chips from the cutting zone. 5.8 Tests of cutters for operability, average and established periods of durability should be carried out in the modes indicated in the table. Table a 4
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STATE STANDARD
UNION SSR
T-SLOT MILLS
By the decree of the State Committee of Standards of the Council of Ministers of the USSR dated August 21, 1972 No. 1637, the date of introduction is set
Resolution of the State Standard of 04.06.85 No. 1574
validity period extended until 01/01/87
Failure to comply with the standard is punishable by law
This standard applies to cutters made of high-speed steel for processing T-shaped grooves in accordance with GOST 1574-75.
The standard is fully consistent with ST SEV 115-79 and ST SEV 4632-84 in terms of cutters for processing T-shaped grooves, (Modified edition, Amendments No. 3, 4).
1. TYPES, DESIGN AND DIMENSIONS
1.1. Cutters must be made of two types:
1 - cutters with a cylindrical shank for grooves with dimensions a from 5 to 36 mm with an angle of inclination of the chip groove a) = 10 °;
2 - cutters with a tapered shank for grooves with dimensions a from 6 to 54 mm in two versions:
1 - with normal teeth with an angle of inclination of the chip groove (o = 10 °;
2 - with large teeth with an angle of inclination of the chip groove (o = 15 ... 25 °.
Official edition
b) Type 2, version 2 (drawing 2, table 2)
■ c-B A-A 3
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table 2 Dimensions in mm |
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APPENDIX 2 Mandatory
Basic dimensions of type 1 cutters, manufactured according to the customer's request
|
APPENDIX 3 Mandatory
Operating conditions for T-slot cutters
1. Mills are designed for processing T-shaped grooves on machines that meet the established standards of accuracy and rigidity.
2. The accessory tool must meet the specified accuracy standards.
3. Processed material:
for cutters of types 1 and 2 of version 1 - gray cast iron СЧ 18 in accordance with GOST 1412 -79 with hardness HB 170 ... 200;
for cutters of type 2, version 2 - steel 45 in accordance with GOST 1050-74 with a hardness not exceeding HB 197.
4. Cutting conditions must correspond to those specified in clause 4.4 and in table. 3 of this standard.
5. A 5% solution of emulsol in water (by weight) with a flow rate of 6-8 l / min is used as a lubricating-cooling liquid.
For cutters of version 1, cooling is carried out with an air jet.
6. In the workpieces, a rectangular groove is pre-milled, equal in width to the neck diameter di + 2 mm, leaving a 1-2 mm allowance along the bottom of the groove.
7. The specified operating conditions are designed for a guaranteed durability between regrinds - 60 minutes.
(Introduced additionally, Amendment No. 3).
Editor M. A. Glazunova Technical editor E. V. Mityai Proofreader S. I. Kovaleva
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Clause 2.13. State the first paragraph in a new edition ^ "The tolerance of the radial runout of the main cutting edges of the cutters teeth relative to the shank axis should be:"
Clause 2K4. The first paragraph shall be stated in the nbwey edition: "The tolerance of the face runout of the working part of the cutters relative to the shank axis should be:"
Clause 2.15 shall be reworded: “2L5. Average and established periods of service life for all diameters of cutters type 1 and type 2 when machining OCH SH cast iron and St45 steel under the test conditions specified in Sec. 4, should be: Г av * = 60 min, Tu = 25 min ":
Section 2 shall be supplemented with clause - 2.16: “2.16. The criterion for bluntness of cutters is the achievement of permissible wear on the flank surface, equal to that indicated in table. 3.
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Table 3 |
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Sections 3, 4 shall be reworded:
"3. Acceptance rules -
3.2. Tests of cutters to determine reliability indicators are carried out on at least 5 cutters.
To control the average durability period, tests are carried out once every three years, for the established durability period, twice a year.
The tests shall be carried out on milling cutters with a diameter of 18, 25 and 50 mm.
It is allowed to additionally test cutters of other diameters.
4. CONTROL METHODS
4.1. Tests of cutters should be carried out on milling machines for general and special purposes, corresponding to the standards of accuracy and rigidity established for them.
4.2. Cutters of types 1 and 2 of version 1 should be tested on billets of kz gray cast iron grade SCh 18 according to GOST 1412! -85 with a hardness of 180 ... 220 HB, cutters of type 2 of execution 2 - on blanks of steel grade 45 according to GOST 1050 "-74 with hardness 197 ... 207 HB.
In the workpieces, a rectangular groove is pre-milled, equal in width to the diameter of the neck (rfi + 2) mm, leaving a 1-2 mm allowance along the bottom of the groove.
4.3. Tests of cutters for operability, average and established periods of durability should be carried out on (modes specified in table. 4.
The permissible deviation of the value of the cutting speed from that indicated in the table. 4 should be within TO% when the V * S value changes within 10%.
4.4. The total milling length during the performance test must be at least 500 mm.
4.5. After the performance tests, there should be no chipping and other defects on the cutting edges of the cutters. After testing, the cutters must be suitable for further work.
4.6. Acceptance values of the average and established periods of durability no should be less: Ger -68 min, Tu -28 min.
4.7. When working on steel as a lubricant coolant
a 5% solution of emulsol in water (by weight) should be used with a flow rate of 6-8 l / min; when working on cast iron - cool with an air stream that removes chips from the cutting zone. ,
(To be continued, see p. 132)
|
(Continuation of changes to Г01рТ 7063-72) Table 4 |
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4.9. The appearance control is carried out visually.
4.10. The parameters of the roughness of the surfaces of the cutters should be checked by Comparison with the samples of the surface roughness according to GOST 9378-75 or with exemplary tools having the values of the parameters of the surface roughness not more than those indicated in l. 2.10.
The comparison is carried out visually using a 2 x magnifier according to GOST 2 & 7 | 0v-vE.
4JM 1. The error in measuring the geometric parameters of cutters should be no more than:
when measuring the linear dimensions of the quantities specified in GOST 8.051-81;
when measuring angles - 35% of the tolerance value for the checked angle;
when controlling the shape and location of surfaces - 25% of the tolerance value for the checked parameter ”.
Exclude Appendix 3.
(IUS No. 2 1987)
Clause 2.15. Replace designation: SCH18 with "SCH 18 in accordance with GOST 1412-85",
Section 3 (name), clause 3.1. Replace the words: “Acceptance rules” with “Acceptance”.
Clause 3.2 shall be amended as follows: “3.2. Periodic tests, including tests of cutters for an average durability period, should be carried out once every three years, for a 95% durability period, once a year on at least 5 cutters.
Tests of cutters should be carried out on any standard size of cutters of the production range specified in table. 4".
Clauses 4.3, 4.6. Replace the word: "installed" with "95%".
Table 4. Column "Cutter diameter d". Replace size: 12.5 by 11.0; 12.5.
Section 5 shall be reworded:
"5. Transportation and storage
Transportation and storage - in accordance with GOST 18088-83 ".
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(IUS No. 8 1990) |
Appendix 1. Table 1 should be supplemented with the dimensions of diameters d 11.0; 50.0; 60 mm and the corresponding values: ____
1.2. The design and main dimensions of type 1 cutters must correspond to those indicated in Fig. 1 and in table. 1, type 2 cutters - indicated in fig. 2 and in table. 2.
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An example of a conventional designation of a type 1 cutter with a nominal groove size a = 14 mm:
Note. The main dimensions of type 1, manufactured at the request of the customer, are indicated in the mandatory appendix 2.
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table 2 |
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An example of a conventional designation of a type 2 cutter of execution 1 with a nominal groove size o = 6 mm;
(Modified edition, Amendments No. 2, 3).
1.2a, 1.26. (Excluded, Amendment No. 3).
1.4. Dimensions of radii of fillets and chamfers not specified in this standard are taken for technological reasons.
1.5. Structural elements and geometrical parameters of the cutters are indicated in the recommended appendix.
2. TECHNICAL REQUIREMENTS
2.1. (Deleted, Amendment No. 2).
2.2. Cutters must be made of high-speed steel in accordance with GOST 19265-73.
(Modified edition, Amendment No. 2).
2.3. Cutters must be welded. In the place of welding, shells, lack of penetration, arson and metal burnout, ring cracks are not allowed.
Type 1 cutters for grooves with a nominal size of 12 mm inclusive can be manufactured in one piece.
2.4. The shanks of cutters must be made of steel grade 45 in accordance with GOST 1050-74 or from steel grade 40X in accordance with GOST 4543-71.
2.5. The hardness of the cutters must be:
cutting parts made of high-speed steel HRC 62 ... 65;
cutting parts made of high-speed steel with a vanadium content of 3% or more and cobalt 5% or more - higher by 1-2 HRC units;
cylindrical shank;
solid cutters - HRC 35 ... 55;
welded cutters - HRC 30 ... 50 in the area of at least 1/2 of the length from the end of the shank;
the end part of the taper shank - HRC 30 ... 50.
2.6. The working surface of the cutters should not have a decarburized layer and places with low hardness.
2.7. On the surface of the cutters there should be no nicks, cracks, burrs, rough edges, chipped places, arson, as well as traces of corrosion.
2.8. Blockages at the cutting edges of the cutter teeth are not allowed.
2.9. The center holes of the cutters must be free of nicks and grooves.
2.10. According to GOST 2789-73, the parameters of the roughness of the surfaces of cutters should be, microns:
front and rear surfaces of the teeth - Rz ^ .3,2;
for cutters with a diameter of 12.5 to 40 mm:
0.02 mm - two adjacent teeth, 0.04 mm - on the entire mill; for cutters with a diameter of 50 to 95 mm:
0.03 mm - two adjacent teeth; 0.05 mm - on the entire cutter.
2.14. The face runout of the working part of the cutters should not exceed:
for cutters with a diameter of 12.5 to 40 mm - 0.04 mm; for cutters with a diameter of 50 to 95 mm - 0.05 mm.
2.15. The average service life of cutters must correspond to that specified in the mandatory appendix 3.
3. RULES OF ACCEPTANCE
(Modified edition, Amendment No. 1).
3.2. (Deleted, Amendment No. 1).
3.3. Periodic tests should be carried out at least once every three years for at least 10 cutters.
3.4-3.6. (Excluded, Amendment No. 3).
3.7. It is allowed to carry out tests for the durability of cutters at consumers in production conditions.
4. TEST METHODS
4.1. Functionality tests of cutters should be carried out on milling machines. Milling machines and auxiliary
the tools used for testing must comply with the established standards for accuracy and rigidity.
(Modified edition, Amendment No. 3).
4.2. A 5% (by weight) solution of emulsol in water with a flow rate of 6-8 l / min is used as a lubricating-cooling liquid.
(Modified edition, Amendment No. 4).
4.3. Testing of cutters of types 1 and 2 of execution 1 is carried out on blanks made of gray cast iron СЧ18 according to GOST 1412-79 with hardness HB 170-200, cutters of type 2 of execution 2 - on blanks made of steel grade 45 according to GOST 1050-74 with hardness HB 184-217.
In the workpieces, a rectangular groove is pre-milled, equal in width to the neck diameter di + 2 mm, leaving an allowance along the bottom of the groove of 1-2 mm.
4.4. Cutting conditions during testing should correspond to those indicated in table. 3.
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Table 3 |
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(Modified edition, Amendments No. 2, 3).
4.5. The total milling length during the performance test must be at least 500 mm.
4.6. After testing, the cutting edges of the cutters should be free of chipping and other defects. After testing, the cutters must be suitable for further work.
(Modified edition, Amendment No. 2).
4.7. Linear and angular dimensions, radial and face runout should be controlled by universal and special measuring instruments.
4.8. The hardness of the cutters should be checked in accordance with GOST 9013-59 or GOST 2999-75.
4.9. The roughness of the surfaces of the cutters should be checked by samples of the surface roughness in accordance with GOST 9378-75.
4.10. The appearance of the cutters is controlled visually.
5. MARKING, PACKAGING, TRANSPORTATION AND STORAGE
5.1. The neck surface of each cutter shall be clearly marked with the following markings:
a) the trademark of the manufacturer;
b) the designation of the cutter;
c) the nominal size of the groove a;
d) steel grade of the cutting part.
It is allowed to mark the last four digits of the designation on cutters up to the groove size a = 18 mm inclusive.
It is allowed to mark on the cutters on the shank, provided that its geometric shapes are preserved, and also to make a recess on the shank for marking.
5.2. The inner packing of the cutters is VU-1 in accordance with GOST 9.014-78.
(Modified edition, Amendment No. 4).
5.2a. Other requirements for marking, packaging, transportation and storage of cutters are in accordance with GOST 18088-83.
(Introduced additionally, Amendment No. 4).
5.3. (Deleted, Amendment No. 3).
5.4-5.9. (Excluded, Amendment No. 2).
Sec. 6. (Deleted, Amendment No. 4).
ELEMENTS OF CONSTRUCTION AND GEOMETRIC PARAMETERS OF MILLS
* The back surface of the cutter teeth can be made with a two-corner or curved shape.
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Table 1 Dimensions in mm |
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Reprinting prohibited
Re-edition (August 1985) with Amendments No. 2, 3, 4, approved in June 1977, February 1981, June 1985 (IUS 7-77, 5-81, 8-85).
The back surface of the cutter teeth can be made of two-corner or curved shape.
Description:
Designation: GOST 7063-72
Status: lost force in the Russian Federation
Russian name: T-slot milling cutters. Technical conditions
English name: T-slot cutters. Specifications
Date of issue: 01.08.1985
Effective date: 21.08.1972
Expiration date: 01.01.2010
Reissue: reprint with rev. 2
Scope and conditions of use: This standard applies to HSS cutters for T-slot milling.
Instead: GOST 7063-63
List of changes: No. 0 from (reg.) "Amendment to the change"
No. 2 of (reg.) "The validity period is extended"
No. 3 of (reg.) "The validity period is extended"
No. 4 dated (reg.) "The validity period is extended"
No. 5 dated (reg.) "The validity period is extended"
No. 6 dated (reg.) "The validity period is extended"
Text of GOST 7063-72
Appendices to GOST
Designation: Amendment to GOST 7063-72. Abolished in the Russian Federation
Effective date: 01.01.2010
Change No. 2 to GOST 7063-72
Designation: Change No. 2 to GOST 7063-72
Effective date: 01.01.1978
The amendment text is integrated into the text or description of the standard.
Change No. 3 to GOST 7063-72
Designation: Change No. 3 to GOST 7063-72
Effective date: 01.01.1982
The amendment text is integrated into the text or description of the standard.
STATE STANDARD
UNION SSR
T-SLOT MILLS
TECHNICAL CONDITIONS
GOST 7063-72
| ST SEV 115-79, ST SEV 4632-84)
Official edition
USSR STATE COMMITTEE ON STANDARDS
UDC 621.914.22: 006.354 Group G23
STATE STANDARD OF THE UNION OF SSR
T-SLOT MILLERS Specifications
T-slot cutters. Specifications
(ST SEV 115-79, CT SEV 4632-84)
GOST 7063-63
By the decree of the State Committee of Standards of the Council of Ministers of the USSR dated August 21, 1972 No. 1637, the date of introduction is set
Resolution of the State Standard of 04.06.85 N9 1574
validity period extended until 01/01/87
Failure to comply with the standard is punishable by law
This standard applies to cutters made of high-speed steel for processing T-shaped grooves in accordance with GOST 1574-75.
The standard is fully consistent with ST SEV 115-79 and ST SEV 4632-84 in terms of cutters for processing T-shaped grooves, (Modified edition, Amendments No. 3, 4).
1. TYPES, DESIGN AND DIMENSIONS
1.1. Cutters must be made of two types:
1 - cutters with a cylindrical shank for grooves with dimensions a from 5 to 36 mm with an angle of inclination of the flute &) = 10 °;
2 - cutters with a tapered shank for grooves with dimensions a from 6 to 54 mm in two versions:
1 - with normal teeth with an angle of inclination of the chip groove ω = 10 °;
2 - with large teeth with an angle of inclination of the chip groove (o = 15 ... 25 °.
Official edition
Reprinting prohibited
* Re-edition (August 1985) with Amendments No. 2, 3, 4, approved in June 1977, February 1981, June 1985 (I U S 7-77, 5-81, 8-85).
1.2. The design and main dimensions of type 1 cutters must correspond to those indicated in Fig. 1 and in table. 1, type 2 cutters - indicated in fig. 2 and in table. 2.
|
Designation |
babysitting |
Nominal size of T-slot a |
f, no more |
g, no more | |||||||
An example of a conventional designation of a type 1 cutter with a nominal groove size a = 14 mm:
Milling cutter 2252-0305 GOST 7063-72
Note. The main dimensions of type 1, manufactured at the request of the customer, are indicated in the mandatory appendix 2.
table 2
|
execution 1 |
execution 2 |
1 Nominal size of T-slot a |
f, no more |
g, no more |
Morse taper |
Number of teeth g version |
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|
Designation |
Designation | ||||||||||||
|
LLGL A< ЛЛ | |||||||||||||
An example of a conventional designation of a type 2 cutter of execution 1 with a nominal groove size a == 6 mm;
Mill 2252-0151 GOST 7063-72 The same, version 2 with a nominal groove size a = 14 mm: Mill 2252-0158 GOST 7063-72.
(Modified edition, Amendments No. 2, 3).
1.2a, 1.26. (Excluded, Amendment No. 3).
1.3. Center holes are in accordance with GOST 14034-74.
1.4. Dimensions of radii of fillets and chamfers not specified in this standard are taken for technological reasons.
1.5. Structural elements and geometrical parameters of the cutters are indicated in the recommended appendix.
2. TECHNICAL REQUIREMENTS
2.1. (Deleted, Amendment No. 2).
2.2. Cutters must be made of high-speed steel in accordance with GOST 19265-73.
2.3. Cutters must be welded. In the place of welding, shells, lack of penetration, arson and metal burnout, ring cracks are not allowed.
Type 1 cutters for grooves with a nominal size of 12 mm inclusive can be manufactured in one piece.
2.4. The shanks of cutters must be made of steel grade 45 in accordance with GOST 1050-74 or from steel grade 40X in accordance with GOST 4543-71.
2.5. The hardness of the cutters must be:
cutting parts made of high-speed steel HRC 62 ... 65;
cutting parts made of high-speed steel with a vanadium content of 3% or more and cobalt 5% or more - higher by 1-2 HRC units;
cylindrical shank;
solid cutters - HRC 35 ... 55;
welded cutters - HRC 30 ... 50 in the area of at least 1/2 of the length from the end of the shank;
the end part of the taper shank - HRC 30 ... 50.
2.6. The working surface of the cutters should not have a decarburized layer and places with low hardness.
2.7. On the surface of the cutters there should be no nicks, cracks, burrs, rough edges, chipped places, arson, as well as traces of corrosion.
2.8. Blockages at the cutting edges of the cutter teeth are not allowed.
2.9. The center holes of the cutters must be free of nicks and grooves.
2.10. According to GOST 2789-73, the parameters of the roughness of the surfaces of cutters should be, microns:
front and rear surfaces of the teeth - Rz ^ .3,2;
shank - Ra ^. 0.63;
the backs of the teeth, the neck of the cutter and the chip grooves - Rz ^ 10; the rest - Rz ^. twenty.
(Modified edition, Amendment No. 2).
2.11. On the back surface, along the cutting edges, a cylindrical tape with a width of not more than 0.05 mm is allowed.
2.12. Limit deviations of the sizes of cutters should not exceed:
outer diameter d-L12 in accordance with GOST 25347-82; diameter of the cylindrical shank dz-L8 GOST 25347-82; widths I-hi2 in accordance with GOST 25347-82; neck diameter di-hi4 in accordance with GOST 25347-82;
cutter length L- ~ / T1 9 in accordance with GOST 25346-82;
tolerances of Morse tapers - according to the degree of accuracy AT8 in accordance with GOST 2848-75.
(Modified edition, Amendment No. 2).
2.13. The radial runout of the main cutting edges of the cutter teeth relative to the shank axis should not exceed:
for cutters with a diameter of 12.5 to 40 mm:
0.02 mm - two adjacent teeth, 0.04 mm - on the entire mill; for cutters with a diameter of 50 to 95 mm:
0.03 mm - two adjacent teeth; 0.05 mm - on the entire cutter.
2.14. The face runout of the working part of the cutters should not exceed:
for cutters with a diameter of 12.5 to 40 mm - 0.04 mm; for cutters with a diameter of 50 to 95 mm - 0.05 mm.
2.15. The average service life of cutters must correspond to that specified in the mandatory appendix 3.
3. RULES OF ACCEPTANCE
3.1. Acceptance rules - in accordance with GOST 23726-79.
(Modified edition, Amendment No. 1).
3.2. (Deleted, Amendment No. 1).
3.3. Periodic tests should be carried out at least once every three years for at least 10 cutters.
3.4-3.6. (Excluded, Amendment No. 3).
3.7. It is allowed to carry out tests for the durability of cutters at consumers in production conditions.
4. TEST METHODS
4.1. Functionality tests of cutters should be carried out on milling machines. Milling machines and auxiliary
the tools used for testing must comply with the established standards for accuracy and rigidity.
(Modified edition, Amendment No. 3).
4.2. A 5% (by weight) solution of emulsol in water with a flow rate of 6-8 l / min is used as a lubricating-cooling liquid.
4.3. Testing of cutters of types 1 and 2 of execution 1 is carried out on blanks made of gray cast iron СЧ18 according to GOST 1412-79 with hardness HB 170-200, cutters of type 2 of execution 2 - on blanks made of steel grade 45 according to GOST 1050-74 with hardness HB 184-217.
In the workpieces, a rectangular groove is pre-milled, equal in width to the neck diameter di + 2 mm, leaving an allowance along the bottom of the groove of 1-2 mm.
4.4. Cutting conditions during testing should correspond to those indicated in table. 3.
Table 3
(Modified edition, Amendments No. 2, 3).
4.5. The total milling length during the performance test must be at least 500 mm.
4.6. After testing, the cutting edges of the cutters should be free of chipping and other defects. After testing, the cutters must be suitable for further work.
(Modified edition, Amendment No. 2).
4.7. Linear and angular dimensions, radial and face runout should be controlled by universal and special measuring instruments.
4.8. The hardness of the cutters should be checked in accordance with GOST 9013-59 or GOST 2999-75.
4.9. The roughness of the surfaces of the cutters should be checked by samples of the surface roughness in accordance with GOST 9378-75.
4.10. The appearance of the cutters is controlled visually.
5. MARKING, PACKAGING, TRANSPORTATION AND STORAGE
5.1. The neck surface of each cutter shall be clearly marked with the following markings:
a) the trademark of the manufacturer;
b) the designation of the cutter;
c) the nominal size of the groove a;
d) steel grade of the cutting part.
It is allowed to mark the last four digits of the designation on cutters up to the groove size a = 18 mm inclusive.
5.2. The inner packing of the cutters is VU-1 in accordance with GOST 9.014-78.
(Modified edition, Amendment No. 4).
5.2a. Other requirements for marking, packaging, transportation and storage of cutters are in accordance with GOST 18088-83.
(Introduced additionally, Amendment No. 4).
5.3. (Deleted, Amendment No. 3).
5.4-5.9. (Excluded, Amendment No. 2).
Sec. 6. (Deleted, Amendment No. 4).
ELEMENTS OF CONSTRUCTION AND GEOMETRIC PARAMETERS OF MILLS
a) Types 1 and 2, version 1 (Fig. 1, Table 1)
Table 1
Dimensions in mm
b) Type 2, version 2 (drawing 2, table 2)
* The back surface of the cutter teeth can be made with a two-corner or curved shape.
table 2
Dimensions in mm
(Modified edition, Amendment No. 2).
APPENDIX 2 Mandatory
Basic dimensions of type 1 cutters, manufactured according to the customer's request
APPENDIX 3 Mandatory
Operating conditions for T-slot cutters
1. Mills are designed for processing T-shaped grooves on machines that meet the established standards of accuracy and rigidity.
2. The accessory tool must meet the specified accuracy standards.
3. Processed material:
for cutters of types 1 and 2 of version 1 - gray cast iron СЧ 18 in accordance with GOST 1412-79 with hardness HB 170 ... 200;
for cutters of type 2, version 2 - steel 45 in accordance with GOST 1050-74 with a hardness not exceeding HB 197.
4. Cutting conditions must correspond to those specified in clause 4.4 and in table. 3 of this standard.
5. A 5% solution of emulsol in water (by weight) with a flow rate of 6-8 l / min is used as a lubricating-cooling liquid.
For cutters of version 1, cooling is carried out with an air jet.
(Modified edition, Amendment No. 4).
6. In the workpieces, a rectangular groove is pre-milled, equal in width to the neck diameter di + 2 mm, leaving a 1-2 mm allowance along the bottom of the groove.
7. The specified operating conditions are designed for a guaranteed durability between regrinds - 60 minutes.
(Introduced additionally, Amendment No. 3).
Editor M. A. Glazunova Technical editor E. V. Mityai Proofreader S. I. Kovaleva
Rented at nab. 13.11.85 Sign. in print. 01/08/86 1.0 uel. n. l. 1.0 uel cr.-Ott. 0.46 sch.-ed. l ^
Circulation 8000 Price 3 kopecks.
Order "Badge of Honor" Standards Publishing House, 123840, Moscow, GSP,
Novopresnensky per., 3.
Vilnius Printing House of Standards Publishing House, st. Mindaugo, 12/14. Zach, 4926.
Group G23
Change No. 5 GOST 7063-72 Milling cutters for processing T-shaped grooves. Technical conditions
By the decree of the USSR State Committee for Standards dated 02.12.86 3666, the introduction period was established
Put the code under the name of the standard: OKP 39 ^ 1828.
Clause 1.2, Table 2. Column "Morse taper". Replace the value: 3 with 4. Delete item LL.
Clause 2.5 Replace the hardness designation: HRC 62 ... 66 to 63 ... 66 HRCa, HRC at HRC 3, HRC 35 ... 55 at 37 .. 57 HRC e, HRC 30.<50 на 32 -.. 52 НКС Э.
Item 2LZ. State the first paragraph in a new edition ^ "The tolerance of the radial runout of the main cutting edges of the cutters teeth relative to the shank axis should be:"
Clause 2K4. The first paragraph shall be stated in a new edition: "The tolerance of the face runout of the working part of the cutters relative to the axis of the tool should be:"
Clause 2.15 shall be reworded: “2L5. Average and established periods of service life for all diameters of cutters type 1 and type 2 when machining SCh 18 cast iron and St45 steel under the test conditions specified in Sec. 4 "should be: 7 Wed = 60 min, Tu = 25 min":
Section 2 shall be supplemented with clause 2.16: “2L6. The criterion for bluntness of cutters is the achievement of permissible wear on the flank surface, equal to that indicated in table. 3.
Sections 3, 4 shall be reworded:
"3. Acceptance rules -
3.1. Acceptance rules - in accordance with GOST 23726-79 1.
3.2. Tests of cutters to determine reliability indicators are carried out on at least 5 cutters.
To control the average durability period, tests are carried out once every three years, for the established durability period, twice a year.
The tests shall be carried out on milling cutters with a diameter of 18, 25 and 50 mm.
It is allowed to additionally test cutters of other diameters.
4. CONTROL METHODS
4.1. Tests of cutters should be carried out on milling machines for general and special purposes, corresponding to the standards of accuracy and rigidity established for them.
4.2. Milling cutters of types 1 and 2 of version 1 should be tested on workpieces made of gray cast iron grade SCh 18 in accordance with GOST 1412! -85 with a hardness of 180 ... 220 HB, milling cutters of type 2 of version 2 - on workpieces made of steel grade 415 in accordance with GOST 1050-74 with a hardness of 197 ... 207 HB.
In the workpieces, a rectangular groove is pre-milled, equal in width to the diameter of the neck (dj + 2) mm, leaving an allowance along the bottom of the groove of 1-2 mm.
4.3. Tests of cutters for operability, average in the established periods of durability should be carried out on (modes specified in table. 4.
The permissible deviation of the value of the cutting speed from that indicated in the table. 4 should be within TO% when the V * S value changes within 10%.
4.4. The total milling length n, when tested for performance, should be at least 500 mm.
4.5. After the performance tests on the cutting edges of the cutters, there should be no cutouts and other defects. After testing, the cutters must be suitable for further work.
4.6. Acceptance values of the average and established periods of its durability should be less: T cf -68 min, T y -28 min.
4.7. When working on steel, a 5% solution of emulsol in water (by weight) with a flow rate of 6-8 l / min should be used as a lubricant - cooling liquid; when working on cast iron - cool with an air stream that removes chips from the cutting zone.
(To be continued, see p. 132)
4.8. The hardness of the cutters is in accordance with GOST 9013-59.
4.9. The appearance control is carried out visually.
4.10. The parameters of the roughness of the surfaces of the cutters should be checked by comparison with samples of the surface roughness in accordance with GOST 9378-75 or with exemplary tools having surface roughness parameters no more than those specified in and. 2.10.
The comparison is carried out visually using a magnifying glass 2 x according to GOST 2 * 57106-83.
4L * K The error in measuring the geometric parameters of cutters should be no more than:
when measuring the linear dimensions of the quantities specified in GOST 8.051-81;
ory measuring angles - 35% of the tolerance value for the checked angle;
when controlling the shape and location of surfaces - 25% of the value before * start-up per checked parameter ”.
Exclude Appendix 3.
(IUS No. 2 1987)
Change No. 6 GOST 7063-72 Milling cutters for processing T-shaped grooves. Technical conditions
Approved and put into effect by the Decree of the USSR State Committee for Product Quality Management and Standards dated 05.21.90 М 1218
Date of introduction 12/01/96
Section 1. The name shall be stated in a new edition: “1. Types and sizes ". Clause 1.2. Replace the words: "Design and main dimensions" with "Dimensions";
Table 1 shall be stated in a new edition (the note shall be excluded):
Table 1
|
Designation |
Apply |
Nominal size of T-groove a |
f, no more |
g, no more |
Number of teeth 2xz |
||||||
Tables 1 and 2 should be supplemented with a note: "Note to tables 1 and 2. It is allowed to replace chamfers q and f with radii R = g and /? - f".
Table 2. In the column “Number of teeth r> replace the values: z by 2Xz; 6 by 2x3; 8 by 2X4; 4 by 2X2.
Clause 2.7 shall be reworded: “21.7. On the surface of the cutters there should be no cracks, traces of corrosion, on the ground surfaces - a rough copy, chipped places, on the cutting edges - nicks, burns, on the shank and center holes - burrs. "
Clauses 2.8, 2.9 shall be excluded.
Clause 2K5. Replace designation; SCh18 to “SCh 18 in accordance with GOST 1412-85”, St45 to “St 45 in accordance with GOST 1050-88”; "Set" to "95%".
Supplement Table 3 with the diameter; 11.0 and wear values: 0.40 (when machining cast iron); "-" (when processing steel).
Section 2 shall be supplemented with clauses 2.17-2.19: “2.17. On the surface of the neck of each cutter must be clearly marked:
manufacturer's trademark;
cutter designation;
nominal groove size a;
steel grade of the cutting part;
the image of the State Quality Mark when it is awarded in the manner established by the USSR State Standard.
It is allowed to apply the State Quality Mark only on labels.
It is allowed to mark only the last four digits of the designation on cutters for groove processing of no more than a = 18 mm.
It is allowed to mark on the cutters on the shank, provided that its geometric shapes are preserved, and also to make a recess on the shank for marking.
2.18. Transport marking and marking of consumer containers - in accordance with GOST 18088-83.
2.19. Packing - in accordance with GOST 18088-83i ".
Section 3 (title), clause 3.L Replace the words: “Acceptance rules” with “Acceptance”.
Clause 3.2 shall be amended as follows: “3.2. Periodic tests, including tests of cutters for an average durability period, should be carried out once every three years, for a 95% durability period, once a year on at least 5 cutters.
Tests of cutters should be carried out on any standard size of cutters of the production range specified in table. 4".
Clauses 4.3, 4.6. Replace the word: "installed" with "95%".
Table 4. Column "Cutter diameter d". Replace size: 12.5 by 11.0; 12.5.
Section 5 shall be reworded:
"5. Transportation and storage
Transportation and storage - in accordance with GOST 18088-83 ".
Appendix 1. Table 1 should be supplemented with the dimensions of diameters d 11.0; 50.0; 60 mm and the corresponding values: ____
