FIELD: mechanics.
SUBSTANCE: invention refers to metal deformation process, namely to manufacture of bent section bars. Upward bending of edge elements of flat bar is performed one by one to the specified angles in each passage so that flanges of profiles are formed. At that, appropriate bending angles are taken in each passage.
EFFECT: decreasing consumption of rolls and labour input owing to reducing the number of passages during the forming process.
1 ex
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