GOST 19042-80

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  ГОСТ 19042-80

GOST 19042−80 (ISO 1832−85) of the Plate of the replaceable multifaceted. Classification. The notation. Forms (with Amendments No. 1, 2, 3)

GOST 19042−80
(ISO 1832−85)

Group 56

INTERSTATE STANDARD

REPLACEABLE MULTIFACETED PLATES

Classification. The notation. Form

Throw-away (indexable) inserts. Classification. Notation. Forms

ISS 25.100
77.160
OKP 19 6000

Date of introduction 1982−01−01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of nonferrous metallurgy of the USSR

2. APPROVED AND put INTO EFFECT by Decision of the USSR State Committee for standards from 19.06.80 N 2903

3. App 1−8 prepared by the method of application of the international standard ISO 1832−85 «Plate for replacement of cutting tools. Refer to the"

4. REPLACE GOST 19042−73

5. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

6. The expiration time limit is removed by the Resolution of Gosstandart of the USSR from 28.12.90 N 3442

7. EDITION with Amendments No. 1, 2, 3, approved in October 1984, April 1987, December 1990 (IUS 2−85, 8−87, 4−91)


The standard requirements in part of sec. 1, 2 and 3 are mandatory.

(Added, Rev. N 3).

1. CLASSIFICATION

1.1. The purpose of the plate is divided into cutting, supporting and struzhkolomy.

1.2. Plates are classified according to the following criteria:

inserts: form, having a rear angle, grade of tolerance, the presence of holes and a chip breaking C-grooves;

support plates: form and having a rear angle;

struzhkolomy: form.

2. THE NOTATION

2.1. Numeric and alphanumeric designations of the inserts must conform to the following diagram.

Denote by PP.1−7 are mandatory.

2.1.1. Letters (digits) indicate the form of cutting, bearing, chip breaking C-geometry inserts, shall be as specified in table.1.

Table 1

________________
* Indicates the smallest angle at the vertex.

2.1.2. Letters (digits) denoting the rear angle should conform to the table.2.

Table 2

________________
* Indicates rear corners other than those specified in table.2.

Note. At different back angles on various cutting edges the choice of letters is determined by the rear angle of the longest cutting edge.

2.1.3. Letters (digits), denoting the class of tolerances must conform to table.3, 4 and 5 hell.1−3.

Damn.1. Plate with an odd number of edges and with rounded corners

Plate with an odd number of edges and with rounded corners

Damn.1

Damn.2. Plate with an even number of edges and with rounded corners

Plate with an even number of edges and with rounded corners

Damn.2

Damn.3. Inserts with chamfer

Inserts with chamfer

Damn.3

Table 3

mm

________________
* Classes of tolerances are used the plates with the polished chamfers.

** Maximum deviation depends on the size of the plates (see table.4 and 5).


Limit deviation of the diameter of the control cylinder is ±0.002 mm.

Limit deviations of dimensions and shapes of the plates H, O, P, R, S, T, C, E, M, W should match the values specified in table.4.

Table 4

mm

Limit deviations of dimensions and shape of the plates D for tolerances of classes M and N must match the values specified in table.5.

Table 5

mm

(Changed edition, Rev. N 2).

2.1.4. Letters (digits) indicate the design features of the plates should conform to the table.6.

Table 6

2.1.5. The designation of the dimensions of plates of various shapes are given in table.6A.

Table 6A

Note. The designation of the dimensions of the round plates with the diameter of the inscribed circle in metric units specified in a mandatory application.


For equilateral-equilateral conformal and-neravnodushnyh removable multi-faceted cutting plates (tab.1) as the number selected the size of the theoretical side length in mm, and figures after comma are not taken into account.

Example: Side length of 12.7 — 12.

For round cutting plates as the numbers indicating the size of the plate, the diameter is specified in mm.

For all other removable multi-faceted cutting plates, the number is always installed in accordance with the main cutting edge or long edge. The numbers after the comma are ignored.

Upon receiving a definite number in the first place put 0 (zero).

If needed, additional sizes should be specified on the drawing or specified in the text of the letter X (see table.6).

(Changed edition, Rev. N 3).

2.1.6. The numbers indicate the working width of the plate

The working thickness of the plate (Fig.3A) is the distance from the reference surface to the top of the cutting edge.

Damn.3A

Damn.3A

The number is determined by the size of the working thickness in mm. of the Digits after the decimal point are ignored.

If the number is unambiguous in the first place put 0 (zero).

Example: plate Thickness 4.76 mm — number 04.

For plates with a thickness of =of 1.98 and 3.97 mm in the first place is put the letter T

Example: plate Thickness of 3.97 mm — designation T3

Marking plates should match the table.6b.

Table 6b

(Changed edition, Rev. N 1, 2, 3).

2.1.7. Numbers and letters form the vertices of the cutting edge

2.1.7.1. Removable multi-faceted cutting plates without radii at the vertices are denoted by 00 (zero-zero).

(Changed edition, Rev. N 1, 3).

2.1.7.2. Removable multi-faceted cutting plates with a radius at the vertices are indicated by the radius size in tenths of a millimeter.

In the first place put 0 (zero) if the number is less than 10.

Example: a nose Radius of 0.8 mm — the number 08.

2.1.7.3. Letters (digits) indicate the main angle and the rake angle at the chamfer (Fig.4) removable multi-faceted cutting inserts with a corner chamfer must correspond to the table.7 and 8.

Damn.4

1, the main cutting edge; 2 — zachistka cutting chamfer; 3 — transitional chamfer

Damn.4

Table 7

Table 8

(Changed edition, Rev. N 2).

2.1.7.4. Multifaceted plates with a special performance of the node, which may not be marked according to the PP.2.1.7.2.1.7.3 2 and is assigned the symbol ZZ indicates the need for a more accurate explanation.

2.1.7.5. For round inserts instead of the designation of the peaks of the cutting edge lead to the following designation of the diameters of the inscribed circles:

00, if the diameter of the inscribed circle obtained by the conversion Imperial units to metric;

M0 if the inscribed circle diameter is measured in metric units.

(Changed edition, Rev. N 2, 3).

2.1.8. Letters (digits), denoting the performance of the cutting edge, should correspond to the table.9.

Table 9

Note. In the marking of the plates with additional treatment on the cutting edges after the letter (digits), denoting the performance of the cutting edge, to indicate the designation of the radius of rounding of the cutting edge or the reinforcing chamfer, or both according to GOST 19086.

For example:

cutting triangular plate TNUN-160408

— with a radius of rounding of cutting edges is 0,02−0,03 mm

TNUN-160408 E-02

The same digital: 01111−160408 1−02

— with a reinforcing chamfer =0.1−0.2 mm with the angle =15°:

TNUN-160408 T-13

The same digital: 01111−160408−2-13

— with a reinforcing chamfer =0.1−0.2 mm with an angle of 15° and a radius of 0.2−0.03 mm:

TNUN-160408−13−02

The same digital: 01111−160408 3−13−02.


(Changed edition, Rev. N 3).

2.1.9. Letters (numbers), characterizing the direction of cut should correspond to the table.10

Table 10

2.2. Numeric and alphanumeric designations of base plates must comply with the following scheme:

2.3. Numeric and alphanumeric designations chip breakers must match the following pattern:

________________
* A number indicating the size of the nut chipbreaker, is determined by the size in tenths of mm.

For example: size =1.0 mm — 10.

2.4. The symbol plates when ordering with the all-Union classifier of products (OKP).

The complete code of OKP legend plates consists of 16 characters, the first six of which designate the grade, the next four characters — the shape of a plate, the last six digits of the size of the plate. Code VCG (the highest classification group) OKP brands for hard alloy specified in table.11.

Table 11

Code batch-sequence number of ECVs for plates specified in the table.12−14.

The last six digits of the legend refer to the relevant standards for the design and size of plates.

Example of designation when ordering, insert a triangular shape, with the length of the cutting edge =of 11.0 mm, radius =0.4 mm, class U tolerance of hard alloy VK6 brand;

19 6524

0352 110304.

(Changed edition, Rev. N 1, 3).

2.5. The symbol plates in the technical documentation consists of notations size plates, of alloy grades with the indication of the state standard.

Example of designation insert triangular shape, with a cutting edge length =11.0 mm radius =0.4 mm, class U tolerance of hard alloy VK6 brand:

01111−110304 VK6 GOST 19043−80.

The same alphanumeric designation:

TNUN-110304 VK6 GOST 19043−80.

(Changed edition, Rev. N 2).

2.6. Limit deviation of the insert sizes for inch system of measures specified in the annexes 1−3.

2.7. Symbols and designations of dimensions of the plates for the Imperial system of measures are specified in appendices 4−8.

2.6, 2.7. (Added, Rev. N 3).

3. TYPES OF PLATES

3.1. Inserts should be made of the types listed in table.12.

Table 12

(Changed edition, Rev. N 1, 2).

3.2. The base plate shall be made of the types listed in table.13.

Table 13

3.3. Struzhkolomy should be made of the types listed in table.14.

Table 14

(Changed edition, Rev. N 3).

ANNEX 1 (reference). Limit deviations dimensions in inches (ISO 1832)

ANNEX 1
Reference

________________
* Tolerances usually used to refer to inserts with wiper edges.

** Tolerances depending on the size of the plates and used for each plate in accordance with the standard on this size plate.

ANNEX 2 (informative). Limit deviations for plates with an angle of 60° or more for forms O, H, E, M, R, S, C, T, W, R for accuracy classes M, N and U of the size m; accuracy classes M, J, N, K, L and U for a d size in inches (ISO 1832)

ANNEX 2
Reference

Limit deviations for plates with an angle of 60° or more for forms
O, H, E, M, R, S, C, T, W, R for accuracy classes M, N and U in size ;
for accuracy classes M, J, N, K, L and U the size in inches (ISO 1832)

APPENDIX 3 (reference). Limit deviations for rhombic plates with internal acute angle 55° (form D) class of accuracy M, N the dimensions of m and d in inches (ISO 1832)

APPENDIX 3
Reference

Limit deviations for rhombic inserts
internal acute angle 55° (form D) class
precision M, N dimensions and in inches (ISO 1832)

ANNEX 4 (reference). Symbols to denote sizes of inserts (ISO 1832)

ANNEX 4
Reference

ANNEX 5 (reference). Symbols to indicate the thickness of the inserts (ISO 1832)

ANNEX 5
Reference

In countries with Imperial system as a symbol is used to denote the numerator of the fraction:

a) in 1/32 fractions of an inch for plates with the inscribed circle diameter less than 2/4 inches (6.35 mm);

b) in 1/16 — for plates with a diameter of ¼ inch or more.

Note. As a symbol for the rectangular plates and platters in the shape of a parallelogram instead of the inscribed circle is used the width of the plates.

APPENDIX 6 (reference). Symbols to denote the configuration angle of the plates in countries with Imperial system of calculation (ISO 1832)

APPENDIX 6
Reference

0 — sharp, chamfered corner;

1 — corner radii 1/64 inch;

2 — the radius of the top 1/32 inch;

3 — the radius of the top 3/64 of an inch;

4 — corner radii of 1/16 inch

6 is the radius of the top of 3/32 inch;

8 — the radius of the top 1/8 inch.

APPENDIX 7 (reference). The size of the plates in accordance with standardized diameters of the inscribed circles for equilateral and round inserts (ISO 1832)

ANNEX 7
Reference

Equilateral plate

Note. The edge length can be calculated according to the formula for the conformal plates (plate H, O, P, S, T)

,

where is the number of sides of the polygon; for rhombic plates (forms C, D, E, M, V)

for plates of the form W

,

where ,  — the angles at the vertex of the acute and obtuse angles.

ANNEX 8 (informative). Designation standard thicknesses of inserts (ISO 1832)

ANNEX 8
Reference

ANNEX 9 (required). The designation of the dimensions of the round plates

ANNEX 9
Mandatory

APP 1−9. (Added, Rev. N 3).