METHOD OF MAKING CUTTING TOOLS Russian patent published in 1997 - IPC

FIELD: plastic metal working, namely production of blades of cutting tools, possibly manufacture of cutting edges of blade type knives for meat industry. SUBSTANCE: method comprises steps of moving blank between rolls normally relative to rolling direction, using rolls whose deforming surfaces have restricted arc length and coordinates of arc circle center shifted relative to roll rotation axis by value proportional to final dimension of cross section of cutting tool; selecting arc length of deforming surface equal to width of cutting part of tool; at rolling changing angle between roll axes in dependance upon conicity angle of said rolls and proportionally to blade length and to thickness of cutting tool. EFFECT: enhanced efficiency. 3 dwg