Ball end mill

Details Ball end mill Ball end mill

2007-10-16

2007-10-16

Fridie, Jr., Willmon (Department: 3722)

Cutters, for shaping

Rotary cutting tool

Face or end mill

C407S042000, C407S034000

Reexamination Certificate

active

10690654

ABSTRACT:
In a ball end mill, cutting can be carried out with high precision, and abrasion or breakage of the cutting blade can be reduced. The ball end mill is provided with a cutting blade section having a cutting blade, which is U-shaped in front view, at the end section of a shank. The cutting blade is provided on a flat surface deviated by a predetermined distance from the shank axis, and comprises blade faces having rake faces, which become negative angles at the time of cutting. In cross-section intersecting the cutting blade, all the blade faces have the same shape.

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Japanese Office Action for JP2002-311218 dated Sep. 13, 2005 with English translation.
European Search Report for EP03256706, Feb. 2, 2004.

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