METHOD OF MAKING ARTICLES WITH CURVED SECTIONS FROM SHAPED TUBES AND DEVICE TO THIS END Russian patent published in 2014 - IPC B21D7/02

Abstract RU 2528286 C2

FIELD: process engineering.

SUBSTANCE: invention relates to machine building, particularly to metal forming, and can be used for making decorative articles, say, volutes and monograms for arches, etc., from shaped tubes. Prior to bending, the workpiece cross-section is changed to make stiffness ribs by rolling tube wall part inwards at tube sides. At least two rolling shaping discs with pressure device are used. Note here that transverse section of at least one disc is shaped to ensure preset height of the rib.

EFFECT: enhanced performances.

8 cl, 4 dwg

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RU 2 528 286 C2

Authors

Rubtsov Vladimir Ivanovich

Dates

2014-09-10—Published

2012-07-16—Filed