SEPARATION METHOD OF ROD INTO LONG WORKPIECES Russian patent published in 2014 - IPC B26D3/16 B23D23/00 

FIELD: metallurgy.

SUBSTANCE: rod is supplied till a separation plane is aligned with an introduction plane of a wedge tool made in the form of a roller with a V-shaped working edge. Rotational movement is given to the wedge tool. A deforming force is applied to the wedge tool simultaneously with application of a pressure force to a cantilever end of a long workpiece. A V-shaped groove is formed in a rod separation plane. The long workpiece is separated from the rod. The pressure force to the cantilever end of the long workpiece and the deforming force to the wedge tool are applied on one side relative to the rod axis in a common longitudinal radial plane having the possibility of rotational movement about the longitudinal axis of the rod. Values of periodically alternating tensile and compressions stresses in the rod separation plane are set in the range of the value of metal limit of elasticity at implementation of the wedge tool till the value is not lower than the value of metal shear yield point by the time the long workpiece has been separated from the rod.

EFFECT: improving quality of long workpieces.

2 dwg, 1 ex