Patent ID: 6742971
Filing Date: 2004-06-01
Classification: B23B,Y10T

Abstract:
A metal cutting insert having a forward face and spaced apart side faces, an upper boundary of said forward face joining a forward cutting surface, the juncture of the forward cutting surface and said forward face defining a forward cutting edge, each of said side faces having an upper boundary joining a side cutting surface the juncture of a side face and an associated side face upper boundary defining a side cutting edge, each side cutting edge forming part of a shelf that includes a chip controlling structure including a concave chip deflecting surface positioned immediately adjacent said cutting surface, the width of said concave chip deflecting surface increasing in a direction away from said front cutting edge and said chip controlling structure including a plurality of spaced apart, concave recesses spaced along said concave chip deflecting surface, with each recess increasing in size in a direction away from said forward cutting edge and a portion of said concave chip deflecting surface extending between each of the concave recesses.