TOOL MADE OF CUBIC BORON NITRIDE SINTERED BODY

摘要

A tool includes, at least on its edge, a sintered cBN compact (4) which includes cBN particles and a bonding phase, a plurality of flutes (6) is formed on a rake face (5), each of the flutes (6) having a starting end on the edge ridgeline (8) and causing the edge ridgeline (8) to be wavy, and the terminal end of the flute (6) is disposed inwardly of the edge ridgeline (8). It is preferable that the flute width of the flute (6) decreases with distance from the edge ridgeline (8), the flute depth of the flute (6) decreases with distance from the edge ridgeline (8), and the rake face (5) has a positive rake angle.