Rotatable cutting tool with cutting inserts for chip...

Details Rotatable cutting tool with cutting inserts for chip... Rotatable cutting tool with cutting inserts for chip...

2005-09-20

2005-09-20

Fridie, Jr., Willmon (Department: 3722)

Cutters, for shaping

Rotary cutting tool

Having peripherally spaced teeth

C407S042000, C407S113000

Reexamination Certificate

active

06945740

ABSTRACT:
A rotatable cutting tool for chip-removing machining includes a basic body which defines a center axis of rotation. Cutting inserts are detachably mounted in respective cutting seats that are formed in the basic body. Each insert has a square shape and includes first and second pairs of mutually parallel major cutting edges, four corners, and four wiper edges. Each wiper edge is situated between a major cutting edge and a respective corner. The wiper edges are shorter than the major cutting edges and are inclined relative thereto, wherein an imaginary extension line of the wiper edge forms a first acute angle with the respective major cutting edge as the insert is viewed in a direction perpendicular to the top surface. The cutting seats are arranged to orient the inserts wherein an axially forwardmost wiper edge of each insert lies in a plane oriented perpendicular to the axis, and wherein a radially outermost wiper edge of each insert is oriented parallel to the axis.

REFERENCES:
patent: 4090801 (1978-05-01), Faber
patent: 4475851 (1984-10-01), Hale
patent: 4558975 (1985-12-01), Hale
patent: 4681488 (1987-07-01), Markusson
patent: 4940369 (1990-07-01), Aebi et al.
patent: 5984592 (1999-11-01), Harper et al.
patent: 6413023 (2002-07-01), Nagashima
patent: 6764254 (2004-07-01), Emoto et al.

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