Cutting tool and cutting insert for the same

摘要

A cutting tool includes one or more cutting portions. Each of the cutting portions has a cutting insert and an insert pocket for mounting the cutting insert. The insert pocket has a top surface with one or more projecting portions with a shape of serration, and a bottom supporting surface. The cutting insert has a top surface mating with said projecting portions of the insert pocket, and a bottom surface mating with the bottom supporting surface of the insert pocket. The top surface of the cutting insert has one or more outwardly sloped surfaces mating with the projecting portions of the insert pocket, and one or more inwardly sloped surfaces positioned off the projecting portions.

主权项

1. A rotary cutting tool having rotary axis (A), comprising:
one or more cutting portions including a cutting insert and an insert pocket formed on a body of the cutting tool for mounting the cutting insert; said insert pocket having a top surface with one or more projecting portions with a shape of serration, a bottom supporting surface opposing the top surface and a radial inner rear supporting surface connecting the top surface and the bottom supporting surface; said cutting insert having a top surface mating with said one or more projecting portions with a shape of serration of the insert pocket, a bottom surface mating with the bottom supporting surface of the insert pocket, and a radial inner side surface connecting to the cutting insert's top and bottom surfaces, wherein the radially inner side surface mates with the insert pocket's radially inner rear supporting surface; wherein the top surface of the cutting insert comprises one or more outwardly sloped surfaces mating with the one or more projecting portions on the top surface of the insert pocket and one or more inwardly sloped surfaces positioned off the one or more projecting portions of the insert pocket.