Method of manufacturing diamond-coated cutting tool inserts and

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

1997-05-22

1998-12-29

Pitts, Andrea L.

Cutters, for shaping

Comprising tool of specific chemical composition

407118, 408145, 51309, 427249, B23B 2722

Patent

active

058532684

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.

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