METHOD FOR SHAPING BENT TROUGH LIKE SECTIONS Russian patent published in 2005 - IPC

Abstract RU 2256524 C1

FIELD: plastic working of metals, possibly manufacture of merchant cold bent rolled sections.

SUBSTANCE: method comprises steps of successively bending up lateral webs of section at keeping its flanges horizontal in all passes; while bending up lateral webs in last but one pass till angle value 87 - 88°, bending downwards by 2 - 3° edge portions of horizontal web of section joined with above mentioned webs. Length of each bent portion of horizontal web consists 0.2 - 0.23 of full length of said web.

EFFECT: improved consumer's properties of bent trough like sections due to their enhanced geometry.

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RU 2 256 524 C1

Authors

Senichev G.S.

Antipanov V.G.

Belyshev A.S.

Gridnevskij V.I.

Dates

2005-07-20—Published

2004-02-19—Filed