METHOD OF CYLINDRICAL BLANKS SURFACES PLASTIC DEFORMATION Russian patent published in 1997 - IPC

FIELD: metals cold working by plastic deformation, cold working of lengthened cylinders and rods in particular. SUBSTANCE: in process of plastic deformation deforming member is given oscillations in the form of reciprocation along axis of blank. In the case deformation is exercised during operational tool feeding under following condition: S <l . i mm/min, with S - operational feeding of tool, mm; l - value of deforming member oscillations amplitude, mm; i - number of double runs of deforming member per minute. Method allows to exercise guaranteed feeding of cutting fluid in zone of plastic deformation, that allows to avoid coalescence of control surfaces. EFFECT: method provides guaranteed feeding of cutting fluid in plastic deformation zone and prevents coalescence of control surfaces. 2 dwg