METHOD OF VIBRATIONAL RECONSTRUCTION OF DEFORMED METAL STRUCTURES Russian patent published in 2017 - IPC B21D3/12 

FIELD: machine building.

SUBSTANCE: invention relates to the manufacture of welded metal structures with long welds receiving residual bending or twisting due to the formation of residual welding deformation. first nodes and sections and hulls of ships. The ends of the structure are rigidly fixed on a stand or table mounted through a support structure so as to obtain a reverse bump structure. For this pre-measured geometric design deviations from permitted values, ie, amount of deformation obtained. Identify these deviations and set on their support to create the reverse deformation, the dimensions and arrangement of the supports is selected so as to provide the feedback from the deformation of the structure, of the same magnitude but opposite in sign. Vibratory editing is performed on a resonant frequency of the structure. Thus exciter installed in the central part of the structure.

EFFECT: increased form accuracy by reducing welding deformation.

2 cl, 4 dwg