sistema de perfuração, inserto de corte, e, método para reduzir trepidação e vibração em uma operação de perfuração

摘要

A drill system and cutting insert geometry is provided, with the system comprising a drill body having at least one cutting insert, with the at least one cutting insert is formed with at least one cutting edge, and has a first negative clearance surface and a second positive clearance surface, wherein the first negative clearance surface plastically deforms the surface of a work piece to produce a smooth surface finish and substantially reduce or eliminate chatter during a machining process.