CVD and PVD coated cutting tools

Details CVD and PVD coated cutting tools CVD and PVD coated cutting tools

1994-01-14

1994-11-15

Terrell, William E.

Cutters, for shaping

Comprising tool of specific chemical composition

407113, 428698, B23B 2714, B23B 2716

Patent

active

053642090

ABSTRACT:
Provided is a coated cutting tool having a coating and a substrate. The coating includes at least one chemical vapor deposited (CVD) layer and at least one physical vapor deposited (PVD) layer. The outermost layer of the coating is a PVD layer, containing residual compressive stresses. The substrate is a composite having hard refractory grains bonded together by a binder material.

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