Patent ID: 6053669
Filing Date: 2000-04-25
Classification: B23B,Y10T

Abstract:
A cutting insert having a cutting edge for chip removing machining, the cutting insert including a supporting body comprising a porous material forming a microporous structure throughout the supporting body to conduct a flow of cooling medium, the supporting body having an outer periphery including an upper surface and a side face, the supporting body being enveloped by a shell substantially impermeable to cooling medium, the shell including a wear body disposed on the upper surface of the supporting body and forming the cutting edge, the shell having at least two openings exposing the supporting body, a first of the openings disposed remotely from the cutting edge and serving as an entrance for cooling medium, and a second of the openings disposed at an upper end of the side face beneath the cutting edge and serving as an exit for cooling medium to cool the cutting edge, the outer periphery of the supporting body defining an inner volume, the microporous structure occupying the entire inner volume.