HOLLOW SHAPED BILLETS PIECE PRODUCTION METHOD Russian patent published in 1995 - IPC

Abstract RU 2039622 C1

FIELD: metals working. SUBSTANCE: rod is heated, pierced into hollow billet with length, that is multiple of 7 10 lengths of a piece billet, rolled in three-roller helical rolling mill on free rotating mandrel. Rollers have ring-type passes on their barrels and in process of deformation are turned by an angle of feeding. Shaping of side surface is exercised and separation of shaped billets. Billets separation is exercised in interval of temperatures of 1150 800 C. Separation of shaped billets is exercised by mutual approach of rollers with application of stretch efforts. EFFECT: method is used in metals working. 2 cl, 3 dwg, 1 tbl

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RU 2 039 622 C1

Authors

Romantsev B.A.

Potapov I.N.

Kalagin S.D.

Popov V.A.

Goncharuk A.V.

Dates

1995-07-20—Published

1990-11-30—Filed