METHOD OF MAKING BENT SHAPES WITH FLANGES AND WITH THICKNESS, VARIABLE ALONG DEVELOPMENT OF CROSS SECTION OF SHAPES Russian patent published in 1994 - IPC

Abstract RU 2019334 C1

FIELD: metal pressure forming. SUBSTANCE: method comprises steps of making an initial blank, having a thickness variable cross section; shaping the blank by transitions; producing the blank by welding peripheral portions of separate blanks with different thickness; deforming the built-up blank to a trough-shaped one with lateral walls, inclined relative to a central wall and to the flanges. EFFECT: increased efficiency, simplified equipment. 2 cl, 8 dwg

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RU 2 019 334 C1

Authors

Doktorov М.Е.

Рshenichnaja N.V.

Dates

1994-09-15—Published

1991-10-08—Filed