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ROTARY CUTTING TOOL WITH HONE EDGES

  • US 20150367427A1
  • Filed: 06/17/2015
  • Published: 12/24/2015
  • Est. Priority Date: 06/18/2014
  • Status: Active Grant
First Claim
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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.

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