Cutting insert having dual cutting edges on one surface and holding body for insert
AssigneeDuramet Corporation
InventorAlbert A. Drescher
Life of this patent
Estimating the term…
Abstract
A cutting tool insert to fit in a holding body for mounting to a rotating machine spindle. The cutting tool insert has multiple faces with one face having several in line cutting edges, one behind the other. A vertical V-groove divides the second cutting edge. The cutting tool insert is symmetrical and is removable, turnable about 180.degree. and replaceable to the holding body.
Claims20
A cutting tool insert comprising:
- a body having a top surface and a bottom surface;
- and four edge faces disposed between said top and said bottom surfaces;
- at least two of said edge faces being opposite to each other and equally spaced from a centerline of said body;
- each of said at least two opposite edge faces having at least a first and a second cutting projection;
- a groove in said second cutting projection.
A holder for a cutting tool insert, said insert having a body, said body having a predetermined shape, said body comprising a top surface, a parallel bottom surface, and four faces normal to said top and bottom surfaces, at least two of said four faces, being opposite of each other, said at least two faces each having at least two cutting projections, said holder comprising:
- a holder body mountable to a machine, said holder body having a periphery;
- at least one pocket for holding at least said insert near said periphery of said holder body with said two cutting projections of said cutting tool insert extending outwardly from said holder body beyond said periphery;
- and
- said at least one pocket for holding said insert being configured to said predetermined shape of said body.
A cutting tool insert comprising:
- a top first surface, a bottom first surface, four face surfaces generally normal to said top first surface and said bottom first surface;
- two of said four face surfaces being opposite each other and being side face surfaces;
- another of said four face surfaces being a back face surface, and another of said four face surfaces opposite to said back face surface being a front face surface;
- a mounting bore extending through said cutting tool insert from said top first surface to said bottom first surface;
- a top second surface lower than said top first surface;
- a tapered surface from said top first surface to said top second surface;
- a bottom second surface lower than said bottom first surface;
- a flat surface normal to said bottom first surface between said bottom first surface and said bottom second surface;
- and
- a face surface on said front face surface between said top second surface and said bottom second surface, said tapered surface from said top first surface to said top second surface angling from one of said two side face surfaces of said four face surfaces to another one of said two side face surfaces.
A cutting tool insert for use with a cutting tool holder comprising:
- a top first surface, a bottom first surface, four face surfaces generally normal to said top first surface and said bottom first surface;
- two of said four face surfaces being opposite each other and being side face surfaces;
- another of said four face surfaces being a back face surface, and another of said four face surfaces opposite to said back face surface being a front face surface;
- means for mounting said cutting tool insert to said cutting tool holder;
- a top surface lower than said top first surface;
- a tapered surface from said top first surface to said top second surface;
- a bottom second surface lower than said bottom first surface;
- a flat surface normal to said bottom first surface between said bottom first surface and said bottom second surface;
- and
- a face surface on said front face surface between said top second surface and said bottom second surface, said tapered surface from said top first surface to said top second surface angling from one of said two side face surfaces of said four face surfaces to another one of said two side face surfaces.
Dependencies are inferred from the claim text.