WELDED TUBE PRODUCTION METHOD Russian patent published in 1997 - IPC

Abstract RU 2100115 C1

FIELD: welded flash-free tubes. SUBSTANCE: method comprises steps of shaping tube blank, welding its edges, reducing welded tube blank at deforming seam zone by critical deformation value, locally heating seam zone up to recrystallization temperature, removing flash. EFFECT: enhanced efficiency, increased strength of tool and enhanced quality of tubes due to lowered adhesion of metal onto tool.

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RU 2 100 115 C1

Authors

Jakovlev V.V.

Kozlovskij A.M.

Fedorin V.R.

Pykhov S.I.

Dates

1997-12-27—Published

1996-04-02—Filed