ROTARY CUTTING TOOL WITH HONE EDGES

摘要

A rotary cutting tool includes a shaft having and outer surface and having a longitudinal axis, a plurality of helical flutes formed in the shaft about the longitudinal axis, a plurality of helical cutting edges formed at an interface with the outer surface and a respective helical flute about the longitudinal axis, and a plurality of end cutting edges located on an axial distal end of a cutting portion of the shaft, the end cutting edges being contiguous with a corresponding one of the plurality of helical cutting edges and forming a corner in the transition between each of the end cutting edges and the corresponding one of the plurality of helical cutting edges. A hone edge extends along a portion of each of the end cutting edges, the associated corner and a portion of the corresponding one of the plurality of helical cutting edges.

主权项

1. An end mill rotary cutting tool comprising:
a shaft having and outer surface and having a longitudinal axis, the shaft including a shank portion and cutting portion; a plurality of helical flutes formed in the shaft in the cutting portion about the longitudinal axis; and a plurality of helical cutting edges formed at an interface with the outer surface and a respective helical flute about the longitudinal axis; a plurality of end cutting edges located on an axial distal end of cutting portion of the shaft, the end cutting edges being contiguous with a corresponding one of the plurality of helical cutting edges and forming a corner in the transition between each of the end cutting edges and the corresponding one of the plurality of helical cutting edges; and a hone edge extending along a portion of each of the end cutting edges, the associated corner and a portion of the corresponding one of the plurality of helical cutting edges.