High-speed milling cutter and insert

Details High-speed milling cutter and insert High-speed milling cutter and insert

2006-02-28

2006-02-28

Fridie, Jr., Willmon (Department: 3722)

Cutters, for shaping

Rotary cutting tool

Including holder having seat for inserted tool

C407S067000, C407S033000

Reexamination Certificate

active

07004689

ABSTRACT:
A high-speed milling cutter (10) includes a shank (12), a front portion (14), and a transition surface (16) between the shank (12) and the front portion (14). The cutter (10) also includes an insert pocket (20) having a bottom surface (22) and side surfaces (24, 26). The bottom surface (22) includes a raised boss (28) for supporting a cutting insert (30). The cutting insert (30) has a top surface (32), a bottom surface (34) and side surfaces (36, 38, 40, 42). The cutting insert (30) includes a primary cutting edge (44, 46) formed at an intersection between the top surface (32) and two of the side surfaces (36, 38, 40, 42). The top surface (32) of the cutting insert (30) includes a concave or dish-shaped topography that is designed for high-speed milling operations of a metallic work piece. The cutting insert (30) also includes a bore (76) in the bottom surface (34) capable of receiving the raised boss (28) for securely retaining the cutting insert (30) within the insert pocket (20), and reducing bending moment on retaining screw64during high-speed milling operations.

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Mitsubishi Carbide Brochure LJ408A, “Shoulder type Indexable end mill for aluminum alloy, BXD Type,” Mitsubishi Materials U.S.A. Corporation, Irvine, California, Mar. 2003, 6 pages.

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