Ball nose end mill and method of manufacture

Details Ball nose end mill and method of manufacture Ball nose end mill and method of manufacture

1987-09-18

1989-06-13

Schmidt, Frederick R.

Cutters, for shaping

Rotary cutting tool

Including holder having seat for inserted tool

407 54, 407 62, 407 40, B23C 502

Patent

active

048387398

ABSTRACT:
Ball nose end mill and method of manufacturing replaceable on-edge high positive single cutting edge triangular inserts each with a pair of dovetail side walls firmly secured by a central screw in a matching dovetail body pocket. Right cylindrical or conical segment convex surface terminating in arcuate cutting edge for generating hemispherical segment is pressed on powdered metal blank with positive rake angle by oblique faced punch and reaction end of uniform straight triangular wall die inherently developing the dovetail side walls.

REFERENCES:
patent: 3136030 (1964-06-01), Jarret
patent: 3696484 (1972-10-01), Spriggs
patent: 4132493 (1979-01-01), Hosoi
patent: 4252480 (1981-02-01), Mizuno
patent: 4566827 (1986-01-01), Noemueller
patent: 4618296 (1986-10-01), Allaire
patent: 4682916 (1987-07-01), Briese

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