| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cutting insert and a cutting tool that reduce wear resistance of chips and exhibit excellent chip discharging property, and to provide a work cutting method using the same. <P>SOLUTION: A cutting insert includes a cutting edge; a rake face region formed continuously from the cutting edge; and a clamp face region located more inward and higher than the rake face region. The cutting insert also includes, on the rake face region, a first rake face formed continuously from the cutting edge; a second rake face formed in an inclined surface shape from the first rake face toward the clamp face region; a projection formed so that at least a part of the projection is located on the first rake face, and including a top portion disposed at a position corresponding to a middle region of the cutting edge when viewed from above; and a convex part formed so that at least a part thereof is located on the second rake face, and located more inward than the projection when viewed from above. A cutting tool mounting the cutting insert, and a method of cutting a work material using the cutting tool are also provided. <P>COPYRIGHT: (C)2012,JPO&INPIT |
