| 摘要 |
<p>The invention relates to a face mill intended for fine milling, which comprises a rotatable basic body (1) and one or more replaceable milling inserts (2), each one of which includes a front side (7), a back side and a chip surface that transforms into the front side via a cutting edge. The active cutting edge (10a) of the milling insert is situated in a reference plane perpendicular to the centre axis (C1) of the basic body, the milling insert being tipped-in in the basic body in such a way that the front side (7) obtains a clearance from the generated surface. In addition, the milling insert is placed at a negative radial angle (´), which results in the fact that a rear end point (16) of the cutting edge will move in a circular path (S2) the radius (r 2 ) of which is greater than the radius (r 1 ) of the circular path (S1) in which a front end point (15) moves. According to the invention, the front side (7) and chip surface of the milling insert (2) form an angle of at most 83° with each other, the active cutting edge (10a) of the milling insert being straight and in the entire length thereof situated in said reference plane, besides which said negative radial angle (´) amounts to at least 70°.</p> |
