Dove-tail end mill having replaceable cutter inserts

Details Dove-tail end mill having replaceable cutter inserts Dove-tail end mill having replaceable cutter inserts

1995-06-08

1998-01-06

Howell, Daniel W.

Cutters, for shaping

Rotary cutting tool

Including holder having seat for inserted tool

407 43, 407 48, 407103, B23C 520

Patent

active

057047367

ABSTRACT:
A dove-tail end mill having a cutter shank with a milling head supporting a plurality of replaceable standard 60.degree. triangular cutter inserts. The cutter inserts are designed and oriented with respect to the cutter head to position cutter edges for generating the inclined undercut surface of a dove-tail slot. Simultaneously, the cutter configuration is designed to establish a clearance angle between the lower cutting edge of each of the cutters and the planar surface being generated by the cutter inserts. The milling head defines a plurality of cutter stations each having planar support surfaces for stabilization of the respective cutter inserts and cutter orientation shoulders for accurate positioning of each of the cutter inserts with respect to the cutting head. The cutting head supports each of the cutter inserts to define a cutting rake of about plus 15.degree. and axial rake of about plus 10.degree. and a radial rake of about minus 14.degree..

REFERENCES:
patent: 3393435 (1968-07-01), Viellet
patent: 3488822 (1970-01-01), Jones
patent: 3708843 (1973-01-01), Erkfritz
patent: 4105357 (1978-08-01), Kehl
patent: 4334446 (1982-06-01), Field
patent: 4397592 (1983-08-01), Erickson
patent: 4645383 (1987-02-01), Lindsay

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