| 摘要 |
<p>An improved end milling tool effective to reduce forces produced in ramp cutting comprises a plurality of end cutting edges (20, 22, 24), and a plurality of side cutting eddges (32, 34, 36), each end cutting edge lying parallel to a radius of the tool tip (18) and intersecting a side cutting edge at the periphery of the tool tip, and each end cutting edge comprising a peripheral end edge portion and an interior edge portion (70), the peripheral end edge portion sloping relatively shallowly from the tip periphery towards the shank portion (14) of the tool, and the interior edge (72) portion sloping relatively steeply from the peripheral edge portion towards the shank portion.</p> |
