| 摘要 |
PROBLEM TO BE SOLVED: To provide a reaming tool which improves a dynamic balance and rigidity of a tool body, simply and precisely makes a position adjustment of an insert, and forms a reamed hole having a high roundness with a precise dimension. SOLUTION: A recess and a mounting seat 31 are formed at the front end part of a tool body 21, a wall surface 31B of the mounting seat 31 outward in the radial direction of the tool body 21 is inclined so as to gradually retreat inward in the radial direction of the tool body 21 as it goes toward the rear side of the tool body 22. The flat shape insert 50 is mounted in the mounting seat 31 by directing in the thickness direction toward the radial direction of the tool body 21, the surface toward the rear end side of the tool body 21 of the insert 50 is made to be a pressed surface 61, an outer peripheral cutting blade 56 is formed at a ridge line part of the outside in the radial direction of the tool body 21 of a cutting face, the outer peripheral cutting blade 56 has a back taper, and a pressing member 40 for pressing the pressed surface 61 is disposed at the rear end side of the tool body 21 of the mounting seat 31. COPYRIGHT: (C)2008,JPO&INPIT
|
