FIELD: process engineering.
SUBSTANCE: set of inventions relates to machine building and can be used for cutting with inclination of milled parts. Claimed insert comprises two opposite end surfaces and peripheral side surface extending between two said opposite end surfaces. Peripheral side surface comprises two opposite larger side surfaces connected with two opposite smaller side surface via angular side surfaces. Peripheral edge is composed at intersection of every end surface with peripheral side surface. Every end surface has two extending angles with appropriate extending angular cutting edges and two smaller angles with appropriate smaller angular cutting edges. Every angular side surfaces comprises concaved chip groove that makes the rear surface for appropriate smaller angular cutting edge. Said concaved chip groove extends from its appropriate smaller angular cutting edge but does not crosses the extending angle coupled with opposite end surface.
EFFECT: efficient chip removal, higher machining quality.
12 cl, 17 dwg
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