| 摘要 |
<p>A cutting plate (4) comprising: a working end (20) for engaging a workpiece, an axis (8) of rotation, a pair of oppositely arranged first faces (34) inclined axially rearward from the working end (20) in an axial plane intersecting said first faces (34), a pair of second faces (30) alternately arranged between the first faces (34), wherein the second faces (30) are inclined axially rearward from the working end (20) in an axial plane (37) intersecting said second faces (30), and a pair of axis parallel front faces (24). Each of the front faces (24) is bounded on three sides thereof by a respective first face (34) and the pair of second faces (30). Each second face (30) is inclined radially inward from a transitional edge with a respective rotationally leading first face (34) in a plane normal to the axis (8) intersecting said transitional edge with a respective rotationally leading first face (34). Each first face (34) is inclined radially inward from a transitional edge (36) with a respective rotationally leading second face (30) in a plane normal to the axis (8) intersecting said transitional edge (36) with a respective rotationally leading second face (30), as the cutting plate (4) rotates.</p> |
