Rotary cutting tools

Details Rotary cutting tools Rotary cutting tools

1996-12-19

1999-11-16

Howell, Daniel W.

Cutters, for shaping

Rotary cutting tool

Including holder having seat for inserted tool

407 34, 407 61, B23B 5104

Patent

active

059845929

ABSTRACT:
A routing cutter has a tool body carrying replaceable cutting inserts which include side inserts with cutting edges projecting radially from the periphery of the body and end inserts with cutting edges projecting forwards from the body. The cutting edges of the side inserts have inward extensions to define a cutting envelope that intersects or overlaps the cutting envelope of the end inserts. Each side insert is secured by clamping screws extending substantially radially into the tool body, rearwards of the insert cutting edge. This arrangement of the clamping screws allows the body to be formed with relatively shallow seating recesses for the side inserts with substantially tangential locating faces against which the inserts are clamped for precise radial location. Also, the side inserts can be relatively deep in the direction of rotation to improve support for cutting edge regions that project from the tool body.

REFERENCES:
patent: 3733665 (1973-05-01), Spriggs
patent: 4789273 (1988-12-01), Wiacek et al.
patent: 4993891 (1991-02-01), Kaminiski et al.
patent: 4995767 (1991-02-01), Segal
GB Search Report dated Feb. 20, 1996.

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