Patent ID: 6227772
Filing Date: 2001-05-08
Classification: B23B,B23C,Y10T

Abstract:
A cutting insert comprising a substantially rectangular parallelopipedal base body formed with two mutually parallel planar large faces pierced by a fastening hole and four side faces respectively bounding same, said side faces including two mutually parallel small end faces and two large longitudinal faces, said longitudinal faces having along respective longitudinal axes, respective projecting ribs serving as a mounting surface upon clamping of the cutting insert in a tool carrier, the large faces transitioning over respective rounded edges into the small end faces so that the longitudinal faces approximately one-quarter-circular cutting edges are formed as boundary lines to the end faces in corner regions of the body, the body having long cutting edges formed as boundary lines between the respective large faces and the respective longitudinal faces bounding the large faces, said body being mirror symmetrical to a longitudinal median plane and to a transverse median plane, respective ends of the long cutting edges and the respective rounded edges between the small end faces and the large faces, form an angle 70.degree.<(90.degree.-.beta.)<90.degree., where .beta. is a lateral chip angle between a respective end of one of the long cutting edges and said longitudinal median plane.