Coated cutting tools

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428457, 428469, 428472, 428697, 428699, 428701, 428702, 428704, 428698, B24B 100

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053956800

ABSTRACT:
Provided is a coated cutting tool having a coating and a substrate. The coating includes at least one CVD layer which may have a residual tensile stress and at least one layer having a high residual compressive stress. The outermost layer of the coating is preferably the one containing residual compressive stresses. The substrate is a composite having hard refractory grains.

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