Exchangeable hard metal cutting inserts in milling cutter

Details Exchangeable hard metal cutting inserts in milling cutter Exchangeable hard metal cutting inserts in milling cutter

1992-12-02

1994-07-26

Terrell, William E.

Cutters, for shaping

Rotary cutting tool

Including holder having seat for inserted tool

407113, B23C 508, B23C 520

Patent

active

053323386

ABSTRACT:
A cutting insert for a rotary milling cutter tool is described. The insert has a cutting edge defined between a cutting rake surface and a relief flank. The insert also has a base edge defined between the relief flank and a base surface. The cutting edge of the insert includes first and second successive component cutting edges which merge continuously with each other. The first and second component cutting edges have respective axial rake angles .gamma..sub.1 and .gamma..sub.2 with respect to an axis of rotation of the cutting tool, with .gamma..sub.1 being significantly greater than .gamma..sub.2. The relief flank and the component cutting edges are shaped and disposed so that the intersection of a plane passing through the rotational axis of the milling cutting tool with a surface milled by the cutting edge is substantially rectilinear.

REFERENCES:
patent: 2761196 (1956-09-01), Graves et al.
patent: 4585375 (1986-04-01), Erkfritz
patent: 4699549 (1987-10-01), Shimomura et al.
patent: 4940369 (1990-07-01), Aebi et al.
patent: 5052863 (1991-10-01), Satran
patent: 5071292 (1991-10-01), Satran
patent: 5078550 (1992-01-01), Satran et al.
patent: 5145295 (1992-09-01), Satran
Marks' Standard Handbook for Engineers, Ninth Edition, Ed. Avallone & Baumeister 1987 McGraw-Hill pp. 13-48-13-49.

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