SHEET PART SHAPING METHOD Russian patent published in 2005 - IPC

FIELD: plastic working of metals.

SUBSTANCE: method is realized due to applying successive local bending efforts during one or several transitions along bending lines and performing rotary local deforming between engaging deforming members. At least one pressure member is in the form of roller with curvature radius in cross direction less than curvature radius of part in the same direction. Axis for applying bending efforts is directed along lines normal relative to bending lines in plane and to plane of bent blank. Bending efforts are applied beginning from shortest butt cross edge of blank. Above mentioned bending lines divide cross section of blank by even number of pieces whose length is equal to bending pitch or proportional to it. Lengthwise edges of grooves are selected as near as possible to curvature lines of part surface with maximum and minimum curvature radius in each point.

EFFECT: lowered labor consumption of process for shaping sheet parts.

3 cl, 3 dwg