| 摘要 |
PROBLEM TO BE SOLVED: To provide a device having the high shape precision of a formed cutter device including a complicated form, easily retaining the device shape precision after the regrinding, and reducing the manufacturing cost and to provide its manufacturing method. SOLUTION: This formed cutter device used by using a machine tool in a machining center, etc., and its machining method are characterized in that the surface property of a flank of the formed cutter device has multiple projecting thread traces formed by pitch feeding of a grinding wheel and extending approximately in parallel to a cutting blade ridge from the cutting blade ridge part to a device rotation rearward direction, and has a multistage shape with the multiple projecting traces parts, which have approximately projecting circular shape in the rotation cross sectional view, set to respective vertices. |
