Ball endmill

Details Ball endmill Ball endmill

1978-07-19

1979-11-27

Hinson, Harrison L.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having peripherally spaced cutting edges

407 40, 407 53, 408239R, B23B 5100, B23B 5114, B26D 112

Patent

active

041758960

ABSTRACT:
A ball endmill comprises a cylindrical body and a cutting element secured to one end of the cylindrical body. The face of the cutting element is convexed and forms a part of the surface of an imaginary cone, the axis of which is inclined to the axis of the cylindrical body. The cutting element is constituted by one or more parts and has at least one arcuate cutting edge. The cutting edge has its starting point located near the axis of the cylindrical edge and cuts in a workpiece a spherical concave as the cylindrical body is rotated.
To cut a deep hole with a spherically curved bottom, the ball endmill may be provided with an auxiliary cutting element. The auxiliary cutting element is secured to the periphery of the cylindrical body and has a straight cutting edge extending parallel to the axis of the cylindrical body. The straight cutting edge cuts a straight cylindrical hole in a workpiece as the cylindrical body is rotated.

REFERENCES:
patent: 271646 (1883-02-01), Martignoni
patent: 3213716 (1965-10-01), Getts
patent: 3443459 (1969-05-01), Mackey et al.
patent: 3540323 (1970-11-01), Rishel
patent: 3633258 (1972-01-01), Szabo
patent: 3670380 (1972-06-01), Moore et al.
patent: 4093392 (1978-06-01), Hopkins
patent: 4132493 (1979-01-01), Hosoi

Affiliated with

Also associated with

Rating

Ball endmill does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ball endmill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ball endmill will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-801061