| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cutting tool that prevents cracks to be generated by baking and has high chipping resistance by using a composite fiber body composed of core materials and coating layers for a cutting edge part. <P>SOLUTION: The cutting tool includes a tool body 12 and a cutting edge chip 14 provided on a mounting base of the tool body 12. The cutting edge part 18 of the cutting edge chip 14 comprises fibers of: a plurality of fiber-like core materials arranged side by side; and coating layers surrounding the outer peripheries of the core materials and having different compositions from the core materials. The fiber arrangement direction of the fibers at a flank 12 is bent relative to the ridge direction of a cutting edge 17, so as to form a larger angle than a lower face mounting base 13 side of the tool body 12 immediately below the ridge of the cutting edge 17. <P>COPYRIGHT: (C)2013,JPO&INPIT |
