GOST 10285-81

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  ГОСТ 10285-81

GOST 10285−81 Insert blanks for forming tools and the plate-blanks for the cutting knives made of hard sintered alloys. Specifications (with Change No. 1)

GOST 10285−81

Group 56

INTERSTATE STANDARD

INSERT BLANK FOR FORMING TOOL
AND PLATES-BLANKS FOR CUTTING KNIVES
OF HARD SINTERED ALLOYS

Specifications

Insent blanks for upsetting tools and insert blanks for parting blades
made of cemented carbides. Specifications

OKP 19 6500

Date of introduction 1983−01−01

INFORMATION DATA

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

DEVELOPERS

N.Kudrya, PhD. tech. Sciences; V. A. Falkowski, PhD. tech. Sciences; L. S. Pavlova

2. APPROVED AND put INTO EFFECT by Decision of the USSR State Committee for standards from 06.07.81 N 3292

3. REPLACE GOST 10285−62

4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

5. Limitation of actions taken by Protocol No. 2−92 of the Interstate Council for standardization, Metrology and certification (ICS 2−93)

6. The revised (November 1998) with amendment No. 1, approved in June 1987 (IUS 10−87)

1. TECHNICAL REQUIREMENTS

1.1. Insert blanks for forming tools and the plate-blanks for the cutting knives must be manufactured in accordance with the requirements of the present standard, using technical documentation approved in the established order.

(Changed edition, Rev. N 1).

1.1.1. Insert blank for forming the tool must be manufactured from solid sintered alloys ВК10-KS, ВК20-KS, VC-20K according to GOST 3882; plate-blanks for the cutting knives shall be manufactured from solid sintered alloys ВК20-KS, ВК10-CC GOST 3882.

Note. At the request of customers plates-blanks for knives for cutting single — or double-stressed machines allowed manufacturing of solid sintered alloys ВК15, ВК20 according to GOST 3882.


(Added, Rev. N 1).

1.2. Shapes and dimensions of inserts, blanks and plates-billets, and the maximum deviations thereon shall conform to the requirements of GOST and GOST 10284 11378; OKP code in accordance with the application.

Maximum deviations in concavity and convexity of the plates-blanks types 1, 2, 3 according to GOST 11378 wide reference surfaces shall be as specified in table.1.

Table 1

mm

1.3. The density of the blanks — according to GOST 3882.

1.4. The hardness of the workpieces — according to GOST 3882.

1.5. Spalling of the working surfaces (in the opening and on the ends) of the inserts blanks according to GOST 10284 and plates-blanks for cutting knife according to GOST 11378 is not allowed.

Depth of pitting on the working edges of the inserts blanks according to GOST 10284 and plates-billets according to GOST 11378 should not exceed 0.3 mm.

1.6. Depth of pitting on a non-working edges shall not exceed: for inserts blanks according to GOST 10284 outer diameter up to 30 mm — 1.0 mm, for inserts-blanks of an external diameter exceeding 30 mm — 1.2 mm, for plates-billets according to GOST 11378 — 0.5 mm.

1.7. The surface of the inserts blanks and plates-billets should be clean from traces of technological backfill, free of cracks, rosslea, blisters.

1.8. The macrostructure of the fracture of the inserts and blanks plates blanks should be uniform, without foreign inclusions and rosslea.

2. ACCEPTANCE RULES

2.1. Insert blanks and plate blanks accept parties. The party consists of any number of panels-the-blanks or plates-blanks of the same brand alloy, manufactured in one technological mode and is decorated with a single document about quality that contains:

is the trademark or name and trademark of manufacturer;

— mark of a hard alloy;

— the batch number;

— test results;

— stamp of technical control;

— date of issue;

— the designation of this standard.

2.2. The appearance and depth of the spall test on each product batch. To determine density, geometrical dimensions and hardness take a sample of 5% of the party. Macrostructure test of three products from the party.

2.3. If unsatisfactory results for density, hardness, geometric size and macrostructure of the repeat tests are carried out at twice the sample taken from the same batch.

The results of repeated tests apply to the entire party.

2.2, 2.3. (Changed edition, Rev. N 1).

3. TEST METHODS

3.1. Determination of the density of blanks — according to GOST 20018.

3.2. Hardness — GOST 20017.

3.3. Size, concavity and convexity of the blanks, check a caliper according to GOST 166 and probe for NTD, or other measuring instruments, the measurement error which does not exceed the requirements of GOST 8.051.

3.4. Determination of the depth of spall carried out an external inspection of workpieces, if there is disagreement in assessing the quality of the magnifying glass according to GOST 25706 or other optical device with a tenfold zoom and scale interval 0.1 mm.

3.3, 3.4. (Changed edition, Rev. N 1).

3.5. Inspection of the surface of the workpiece is carried out without the use of magnifying devices.

3.6. The macrostructure of the billets in the kink test at 20−30 x magnification.

4. MARKING, PACKAGING, TRANSPORTATION AND STORAGE

4.1. Each piece should be clearly paint caused the grade according to GOST 3882.

4.2. Blanks of the same shape, size and carbide grade should be wrapped in heavy paper and stowed in boxes made of cardboard according to GOST 7933 no more than 2 kg in each.

Allowed packing of material in boxes made of polyethylene or other plastic materials according to normative-technical documentation.

(Changed edition, Rev. N 1).

4.3. On each box must be specified:

is the trademark or name and trademark of manufacturer;

— grade according to GOST 3882;

— number of pieces and their weight;

— the symbol of blanks according to GOST or GOST 10284 11378;

— the designation of this standard.

4.4. In each box put a quality document.

4.5. The box with the products to be tightly Packed in wooden boxes (type II-1) according to GOST 2991. The gross weight of the box should be no more than 50 kg.

Transport marking under GOST 14192 with the application of manipulation signs «Fragile. Care», «Protect from moisture».

4.6. Products transported by all types of transport according to the rules applicable on each type of transport.

4.7. When sea transport products transporterowych in containers or bags according to normative-technical documentation.

When sending goods to the far North and in remote areas of packaging, transportation and storage are carried out in accordance with the requirements of GOST 15846*.

_______________
* On the territory of the Russian Federation GOST 15846−2002. — Note the manufacturer’s database.

4.8. During transportation by railway transport of cargo space enlarged in the transport packets of flat wooden pallets with sizes of 800x1200 mm according to GOST 9557. The formation and fixation of packages flat pallets — NTD.

(Changed edition, Rev. N 1).

4.9. The products are stored in the manufacturer’s packaging indoor. Mechanical impact on the products and combines them with chemically active substances is unacceptable.

APPLICATION (reference).

APP
Reference

APP. (Changed edition, Rev. N 1).