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2 087 222

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IPC

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Application

96100154/02, 1996-01-03

(22)

Actual filing date

1996-01-03

(45)

Published

1997-08-20

(72)

Inventor

Panov V.V.Svinin V.I.Tokar' V.S.Vasilevskij P.A.Sherkunov V.G.Kozlovskikh N.F.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Zavod Po Obrabotke Tsvetnykh Metallov"

METHOD FOR PREPARING LEADING ENDS OF BLANKS FOR DRAWING AT MAKING MANIFOLD SHAPES Russian patent published in 1997 - IPC

Abstract RU 2087222 C1

FIELD: plastic metal working, namely production of high-accuracy manifold shapes of high- and low-ductile non-ferrous metals and alloys. SUBSTANCE: before deforming in finishing pass identical blanks are assembled in pairs along their similar lateral surfaces at mutually opposite motion of leading ends of said blanks along deformation axis until matching lengths of deformed portions with constant cross section. Then said blanks are subjected to deformation in pairs in common rhombic roll grooved pass. Enhanced efficiency is achieved due to elimination of straightening and cutting operations in the result of simultaneous deformation of leading ends of two blanks in finishing pass. Enhanced efficiency of process of drawing shapes of low-ductile steels and alloys is achieved due to lowered number of steps of intermediate heat treatment, etching and blank washing out in the result of elimination of stress concentrators and provision of increased accuracy of guiding end of blanks. EFFECT: enhanced efficiency. 4 dwg

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RU 2 087 222 C1

Authors

Panov V.V.

Svinin V.I.

Tokar' V.S.

Vasilevskij P.A.

Sherkunov V.G.

Kozlovskikh N.F.

Dates

1997-08-20—Published

1996-01-03—Filed

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