Chip cutting tool

Details Chip cutting tool Chip cutting tool

1996-11-08

1998-06-30

Pitts, A. L.

Cutters, for shaping

Rotary cutting tool

Including holder having seat for inserted tool

407 54, 407113, B23C 522

Patent

active

057723648

ABSTRACT:
A chip cutting tool for rotary machining operations comprising a tool holder formed with an insert retaining pocket adjacent a leading end thereof and a cutting insert clampingly and releaseably retained therein. The cutting insert has top and base surfaces, two pairs of opposite major and minor side surfaces and at least one cutting edge defined at an intersection between an upper, relief flank surface of a first major side surface and the top surface of the insert. The cutting edge has first and second cutting edge portions, the relief flank surface of the cutting edge at least adjacent the second portion thereof being directed at an internal acute angle to the insert base surface. At least a portion of the second major side surface of the insert is substantially co-directional with the second portion of the cutting edge. When the cutting edge is in its operative position, the first portion of the cutting edge is disposed substantially radially and the second portion of the cutting edge is substantially co-directional with an axis of rotation of the tool and located above the reference plane. The second major side surface and the associated minor side surface of the insert are disposed within the pocket, converge in the direction away from the cutting edge and abut, with their abutting portions, respective side walls of the pocket, an abutting portion of the second major side surface being disposed at the portion thereof co-directional with the cutting edge.

REFERENCES:
patent: D309317 (1990-07-01), Tsujimura et al.
patent: 4525110 (1985-06-01), Stojanovski
patent: 4527930 (1985-07-01), Harroun
patent: 4844643 (1989-07-01), Icks
patent: 5294219 (1994-03-01), Shiratori et al.
patent: 5447396 (1995-09-01), Pantzar et al.
patent: 5622460 (1997-04-01), Satran et al.

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