Roughing cutter

Details Roughing cutter Roughing cutter

1983-06-20

1988-09-13

Godici, Nicholas P.

Cutters, for shaping

Rotary cutting tool

Having peripherally spaced teeth

407 63, B26D 112

Patent

active

047705671

ABSTRACT:
A roughing cutter (14) has a generally cylindrical shank (16) with a plurality of lands (22) and angular flutes (20) with resharpening lips (32) separating the lands. A plurality of straight-crested cutting teeth (24) are formed on the lands with radial relief. Each tooth has a stright cutting edge (28) generally perpendicular to the radial direction. The orientation of the cutting edge permits it to be in parallel relationship to a surface of a workpiece while in cutting engagement. Each tooth has S-shaped side walls (34, 36) with rounded upper portions which are respectively tangential to the crest of the tooth. The rounded upper portions result in reduced power consumption during machining. The teeth of the roughing cutter may be formed by an axially advancing milling cutter with a sloping cutting edge segment (58) and adjoining rounded segments (60, 62).

REFERENCES:
patent: Re26544 (1969-03-01), Castor
patent: 2855657 (1958-10-01), Erhardt
patent: 3548476 (1970-12-01), Cave et al.
patent: 3775819 (1973-12-01), Ribich
patent: 4083643 (1978-04-01), Parone
patent: 4174915 (1979-11-01), Peetz et al.
patent: 4212568 (1980-07-01), Minicozzi
patent: 4285618 (1981-08-01), Shanley

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