| 摘要 |
<p>A spherical cutter (34) includes a spherically shaped body (42) having open and closed ends (44, 46) defining a central cavity (54), multipoint cutting edges (71) disposed along a circular rim (58) at the open end (44), and the spherically shaped body (42) generally defined by a radius (R) and an origin (O). The cutting edges (71) may be provided on cutting inserts (60) removably attached to support teeth (62) circumferentially disposed along the rim (58). The spherical cutter (34) may be mounted to a rotatable spindle (32) of a multi-axis computer numerically controlled machine (31) with the radius (R) and the origin (O) located along a rotational axis (48) of the spindle (32). The machine (31) may be used for machining a cylindrical blank (12) to form a plurality of circumferentially spaced apart integral rotor blades (18) extending radially outwardly from a hub (14) by machining each of the slots (37) along a spherical surface (S) defined by the radius (R) and the origin (O).</p> |
