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2 006 327

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IPC

(21) (22)

Application

5044381/27, 1992-05-27

(22)

Actual filing date

1992-05-27

(45)

Published

1994-01-30

(72)

Inventor

Potapov A.I.Bochkarev V.I.Kharitonov L.V.Katkov I.S.Fedorov E.A.Maslov V.V.Godov V.G.

(73)

Holder

Aktsionernoe Obshchestvo Zavod Tjazhelogo Mashinostroenija"

METHOD OF FORGING-GRADE INGOTS FORGING Russian patent published in 1994 - IPC

Abstract RU 2006327 C1

FIELD: metal pressure working. SUBSTANCE: method of forging-grade ingots forging includes roll-on of the stem, preparation of billet, preliminary drawing to produce a four-ray cross section profile, and final forging. The ingot is forged by means of simultaneous pressing- in of four strikers from four directions aiming towards the billet axis and inclined to each another at an angle of 90 deg. The preliminary drawing is effected at the deformation ratio laying in the range 20-50% , with strikers having convex working surfaces and the working section width ranging from 0.4 to 0.6 of ingot diameter. Billet preparation and the final forgery is performed by strikers having concave working surface. EFFECT: improved forging technology. 3 cl

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RU 2 006 327 C1

Authors

Potapov A.I.

Bochkarev V.I.

Kharitonov L.V.

Katkov I.S.

Fedorov E.A.

Maslov V.V.

Godov V.G.

Dates

1994-01-30—Published

1992-05-27—Filed