FIELD: material processing.
SUBSTANCE: group of inventions relates to material processing by cutting; it can be used in milling operations with high supply. A unilateral three-way indexable cutting plate contains the main form with a positive front angle, a front surface, a peripheral surface containing side stop surfaces, the main bearing surface, and a hole for a screw connecting front and main bearing surfaces. The plate has a cutting edge containing three main sub-edges and three additional sub-edges. Material volume VF of the cutting plate and void volume VS of the plate satisfy the condition VS/VF ≥ 0.30, and a circumscribed diameter of the edge DE satisfies the condition DE < 6 mm.
EFFECT: structural strength of a milling tool of a small diameter is provided.
22 cl, 9 dwg
