Metal-cutting insert having a round cutting edge

Details Metal-cutting insert having a round cutting edge Metal-cutting insert having a round cutting edge

1992-11-04

1994-09-13

Terrell, William E.

Cutters, for shaping

Including holder having seat for inserted tool

With separate means to fasten tool to holder

407 64, 407113, B23B 2708, B23B 2706

Patent

active

053463366

ABSTRACT:
A metal cutting insert comprises a top surface which is intersected by a frusto-conical edge surface to form therewith a round cutting edge. Five equidistantly spaced flat facets are formed in the edge surface. Upper ends of the facets are spaced below the cutting edge. A fixing screw secures the insert to the seat of a holder, such that two of the facets are pressed against respective flat contact areas formed on a locating surface of the holder. Each facet forms an acute angle relative to a central axis of the insert.

REFERENCES:
patent: 1542007 (1925-06-01), Schroeder
patent: 1838520 (1931-12-01), Archer
patent: 4273479 (1981-06-01), Raupp, Jr. et al.
patent: 4294565 (1981-10-01), Erkfritz
patent: 4552491 (1985-11-01), Parker
patent: 4632593 (1986-12-01), Stashko
patent: 4812087 (1989-03-01), Stashko
patent: 5076738 (1991-12-01), Pano et al.
patent: 5145294 (1992-09-01), Flueckiger

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