Cutting tool with stress splitter

Details Cutting tool with stress splitter Cutting tool with stress splitter

2007-04-17

2007-04-17

Fridie, Jr., Willmon (Department: 3722)

Cutters, for shaping

Rotary cutting tool

Including holder having seat for inserted tool

C407S067000, C407S103000

Reexamination Certificate

active

11281275

ABSTRACT:
A cutting tool includes a tool body having a plurality of insert receiving pockets and at least one cutting insert mounted in each pocket. Each pocket includes a pocket base wall, a side wall and a stress relief groove. The tool body also includes a top surface including a first portion and a second portion, and a stress splitter that extends from the stress relief groove and intersects the first and second portions. The stress splitter may be in the form of a sharp peak or ridge, a radiused peak, rounded mass or protuberance, and the like. The stress splitter reduces a maximum amount of stress in an area of the stress relief groove during a machining operation.

REFERENCES:
patent: 5451128 (1995-09-01), Hattersley
patent: 5542795 (1996-08-01), Mitchell
patent: 5685670 (1997-11-01), Satran
patent: 6203251 (2001-03-01), Oppelt et al.
patent: 6536996 (2003-03-01), Satran et al.
patent: 6974280 (2005-12-01), Satran et al.

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