CUTTING TOOL AND ROUNDED TWO-SIDED CUTTING PLATE FOR IT Russian patent published in 2014 - IPC B23C5/20 B23C5/22 

FIELD: metallurgy.

SUBSTANCE: cutting plate is designed for fixation in rotating cutting tool and it has two opposite end butts and peripheral side surface in between. Each butt end has the first common axis of symmetry around which each butt end has N-fold symmetry of rotation, where N is chosen from group 2, 3 and 4, curvilinear cutting edges of two butt ends don't overlap, from the view point of the butt end of the cutting plate along the first axis of symmetry each curvilinear cutting edge rests on tore. Cutting tool has rotation axis and a housing with at least one seat for cutting plate formed in its front end and provided with tangential supporting surface, threaded through hole and side walls. Two spaced side walls form an acute angle with tangential supporting surface of the seat for the cutting plate.

EFFECT: improving operating reliability.

14 cl, 22 dwg