Method of manufacturing diamond-coated cutting tool inserts

Details Method of manufacturing diamond-coated cutting tool inserts Method of manufacturing diamond-coated cutting tool inserts

1995-04-18

1997-07-01

King, Roy V.

Plastic and nonmetallic article shaping or treating: processes

Laser ablative shaping or piercing

427249, 427122, 407118, 407119, 51307, 51309, C23C 1626

Patent

active

056435231

ABSTRACT:
A method of making a diamond-coated insert includes, obtaining a substrate of durable and diamond adherent material having a substantially smooth surface on which is coated a diamond layer using any known CVD technique, and partitioning the diamond covered substrate with a laser beam into multiple inserts with desired geometries. If desired, the insert edges and corners may be thereafter machined or ablated until the desired smoothness and finish are achieved, and a fastening throughbore may be preformed or drilled in the center of each insert. The diamond-coated inserts as formed have a top surface entirely coated by a surface layer of diamond of a first thickness, and at least one rake face which is not diamond-coated beyond the surface layer of diamond.

REFERENCES:
patent: 5294381 (1994-03-01), Iguchi et al.
patent: 5326195 (1994-07-01), Brox
patent: 5366522 (1994-11-01), Nakamura et al.
patent: 5458827 (1995-10-01), Holly

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