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2 094 173

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C1

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IPC

(21) (22)

Application

5008689/02, 1991-09-25

(22)

Actual filing date

1991-09-25

(45)

Published

1997-10-27

(72)

Inventor

Dorofeev Ju.G.Derevjannykh A.P.Jutishev A.S.

(73)

Holder

Aktsionernoe Obshchestvo Nauchno-Proizvodstvennoe Ob"Edinenie

METHOD FOR MANUFACTURE OF BIMETALLIC DISK CUTTERS Russian patent published in 1997 - IPC

Abstract RU 2094173 C1

FIELD: mechanical engineering. SUBSTANCE: method involves compacting porous annular bimetallic billets through height to obtain porosity of 1-3%; deforming pack of compacted billets by upsetting, with material flowing to central part; obtaining porous billets by placing ring made from powder high-speed steel into open annular container so that porous ring is raised above container wall or by sintering powder of high-speed steel in open annular container made from constructional steel. EFFECT: increased efficiency and improved quality of billets. 4 dwg

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RU 2 094 173 C1

Authors

Dorofeev Ju.G.

Derevjannykh A.P.

Jutishev A.S.

Dates

1997-10-27—Published

1991-09-25—Filed

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