Cutting tool of polycrystalline diamond and method of manufactur

Details Cutting tool of polycrystalline diamond and method of manufactur Cutting tool of polycrystalline diamond and method of manufactur

1991-10-07

1993-01-12

Group, Karl

Abrasive tool making process, material, or composition

Miscellaneous

51295, 51307, 51309, B24D 300

Patent

active

051786451

ABSTRACT:
A polycrystalline diamond cutting tool is prepared by employing polycrystalline diamond which is synthesized on a mirror-finished surface of a base material by a low-pressure vapor phase method, as a tool material. A surface, which has been in contact with the base material, of the polycrystalline diamond layer is utilized as a tool rake face. A flank of the tool is formed by laser processing. The flank is covered with a graphite coating layer in one embodiment, while such a graphite coating layer is removed by acid treatment or the like in another embodiment. In still another embodiment, a flank is formed by grinding, and a cutting edge portion is honed by laser processing.

REFERENCES:
patent: 4157897 (1979-06-01), Keaf
patent: 4162899 (1979-07-01), Molnar et al.
patent: 4690691 (1987-09-01), Komanduri
patent: 4832707 (1989-05-01), Kamohara et al.
patent: 5075181 (1991-12-01), Quinto et al.

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