Stephen L Pritchard

US Patent:

20160052072, Feb 25, 2016

Filed:

Aug 22, 2014

Appl. No.:

14/466390

Inventors:

- Latrope PA, US
Stephen G. PRITCHARD - Bennett NC, US

International Classification:

B23C 5/10
B23P 15/34

Abstract:

In one aspect, rotationally balanced asymmetric end mills are described herein. An end mill described herein comprises a shank portion extending along a longitudinal axis of the end mill, and a cutting portion extending from the shank portion. The cutting portion comprises a plurality of unequally indexed blades separated by flutes along an axial length of cut, the blades extending onto a cutting end surface of the end mill, wherein at least one of the flutes is of unequal length and the asymmetric end mill has an imbalance of 2.0 gmm or less.