GOST 24257-80
GOST 24257−80 replaceable cutting Inserts carbide faceted diamond shaped with an angle of 55°, with a hole and a chip breaking C-grooves on two sides. The design and dimensions (with Amendments No. 1, 2)
GOST 24257−80
Group 56
INTERSTATE STANDARD
CUTTING INSERTS, REPLACEABLE CARBIDE FACETED
RHOMBIC SHAPE WITH AN ANGLE OF 55°, WITH HOLE AND CHIP BREAKING C-GEOMETRY
GROOVES ON TWO SIDES
The design and dimensions
Rhombic throw-away (indexable) carbide cutting inserts with 55° included angle
with cylindrical holes and chip-breaking flutes on both faces.
Design and dimensions
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
3. In this standard introduced by the international standard ISO 3364−85 «Plate replaceable tungsten carbide with corner radii with cylindrical fixing hole. Dimensions» in terms of inserts DNMG
4. INTRODUCED FOR THE FIRST TIME
5. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS
The designation of the reference document referenced |
Item number |
GOST 19042−80 |
5 |
GOST 19086−80 |
6 |
6. The expiration time limit is removed by the Resolution of Gosstandart of the USSR from
7. EDITION with Amendments No. 1, 2 approved in October 1984, December 1990 (IUS 2−85, 4−91)
The requirements of this standard are mandatory.
(Added, Rev. N 2).
1. (Deleted, Rev. N 1).
2. The design and dimensions of plates shall be as specified in the drawing and in the table.
________________
* Size for reference.
mm
The marking plates of class of tolerance M |
||||||||
digital | alphanumeric | Applica- the need* |
||||||
13125−150408 |
DNMG-150408 | 15,5 | 12,700 | 5,16 | 4,76 | 0,8 | 6,478 | |
13125−150412 |
DNMG-150412 | 1,2 | 6,015 | |||||
13125−150604 |
DNMG-150604 | 6.35 mm | 0,4 | 6,939 | ||||
13125−150608 |
DNMG-150608 | 0,8 | 6,478 | |||||
13125−150612 |
DNMG-150612 | 1,2 | 6,015 | |||||
13125−150616 |
DNMG-150616 | 1,6 | 5,552 | |||||
13125−190608 |
DNMG-190608 | 19,3 | 15,875 | 6.35 mm | 0,8 | 8,327 | ||
13125−190612 |
DNMG-190612 | 1,2 | 7,865 | |||||
13125−190616 |
DNMG-190616 | 1,6 | 7,402 |
________________
* See Annex 4.
Example of designation when ordering plates of solid alloy grade VK6-OM the cutting edge length =15.5 mm, thickness =4.76 mm, radius =0,8 mm:
19 6516
0438 150408
(Changed edition, Rev. N 1, 2).
3. The shape and dimensions of a chip breaking C-grooves are provided in Annex 1.
4. Approximate weight plates are given in Appendix 2.
5. The notation of plates according to GOST 19042.
6. Technical requirements — GOST 19086.
7. Applied alloys is given in Appendix 3.
(Added, Rev. N 2).
ANNEX 1
Recommended
The shape and size of chip grooves on the front surfaces of the plates
________________
* Dimensions for reference.
ANNEX 2 (informative)
ANNEX 2
Reference
Marking plates | Approximate weight of plates, g | ||
carbide grades | hard alloy coated | ||
T15K6 |
VK6-OM | ВП1255 | |
13125−150408 |
Of 6.83 | 8,86 | 8,20 |
13125−150412 |
Of 6.70 | 8,69 | 8,05 |
13125−150608 |
9,10 | 11,80 | 10,90 |
13125−150612 |
8,90 | 11,60 | 10,68 |
13125−150616 |
8,70 | 11,20 | 10,44 |
13125−190608 |
14,30 | 18,60 | 17,15 |
13125−190616 |
13,90 | 18,00 | 16,70 |
APPENDIX 2. (Changed edition, Rev. N 2).
APPENDIX 3 (recommended). Applied grades of plates
APPENDIX 3
Recommended
Digital signage plates |
The main application |
The additional use of |
Application by special order |
13125−150408 |
- | - | N 2, N 7, N 11 |
13125−150412 |
|||
13125−150604 |
N 2, N 7, N 11 | - | |
13125−150608 |
|||
13125−150612 |
|||
13125−150616 |
N 7, N 11 | N 2 | |
13125−190608 |
- | - | N 2, N 7, N 11 |
13125−190612 |
|||
13125−190616 |
ANNEX 4 (reference). The applicability of the plates
ANNEX 4
Reference
Marking | Plate with a chip breaking C-grooves on one side | |||||
the radius | ||||||
0,4 |
0,8 | 1,2 | 1,6 | 2,4 | ||
12,7 | DNMM 1504 |
++ | ++ | ++ | ++ | +++ |
DNMM 1506 |
++ | + | + | + | +++ | |
15,875 | DNMM 1906 |
+++ | ++ | ++ | ++ | ++ |
Note. + — plates of the basic application, standardized.
++ — plates have limited use, not standardized.
+++ — plates are not recommended for use.
APPS 3, 4. (Added, Rev. N 3).