METHOD FOR BENDING CHANNEL BAR Russian patent published in 2004 - IPC

Abstract RU 2232658 C1

FIELD: plastic metal working, namely production of bent rolled shapes.

SUBSTANCE: method for bending channel bar in plane of its web comprises steps of reducing one of its flanges in two-roll grooved pass and simultaneously inclining said flange by angle relative to horizon and releasing reduction (in rolls) of other flange and web; setting value of above mentioned angle depending upon parameters of bar. Touching point of upper roll and inner surface of web coincides with origin of rounding.

EFFECT: enhanced quality of bent channel bars, simplified bending process.

2 cl, 2 dwg, 1 ex

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RU 2 232 658 C1

Authors

Nosov V.L.

Semenov V.E.

Antipanov V.G.

Kornilov V.L.

Spirin S.Ju.

Dates

2004-07-20—Published

2002-11-18—Filed