For the end mill(ing) cutter of orbital drilling

For the end mill(ing) cutter of orbital drilling

  • CN 102,292,183 B
  • Filed: 01/04/2010
  • Issued: 11/25/2015
  • Est. Priority Date: 01/21/2009
  • Status: Active Grant
First Claim
Patent Images

1. the end mill(ing) cutter (10 for orbital drilling, 10 '"'"', 10 "), comprise:

  • a shank (12) with a shank diameter (20), there is a neck (14) of a neck diameter (22), there is a cutting head (16) of a cutting diameter (24), a radius of corner (30), a re-entrant angle (28), and a longitudinal axis (18), this cutting head comprises a front cutting end (26), this front cutting end has the convexly curved section (29) of between this longitudinal axis and this radius of corner one, wherein this convexly curved section causes the material removed from workpiece to flow towards this radius of corner radially outwardly from an initial contact area (31), the material build in a middle body (26a) of this front cutting end is made to minimize thus, wherein, the radius of curvature of described radius of corner (30) is three to percent eight percent of cutting diameter, and the radius of described convexly curved section (29) is greater than cutting diameter (24), wherein this initial contact area be positioned in distance between this longitudinal axis and this radius of corner 2/1 to three/3rds between.

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