Coated tool and cutting tool including same
AssigneeKYOCERA Corporation
InventorHirotoshi Ito
Life of this patent
Estimating the term…
Abstract
A coated tool includes a base and a coating layer located on the base. The coating layer includes a first layer having a thickness of 1 μm or more located near the base, and a second layer located more away from the base than the first layer. An erosion rate A2 in the second layer is 0.4 μm/g or less which is obtained from a measurement by collision of a liquid A, in which 3 mass % of spherical Al2O3 particles having a mean particle diameter of 1.1-1.3 μm is dispersed in pure water, against the second layer. An erosion rate A1 in the first layer is 1.8 μm/g or less which is obtained from a measurement by collision of the liquid A against the first layer. A cutting tool includes a holder which includes a pocket, and the coated tool located in the pocket.
Claims6
A coated tool, comprising:
- a base;
- and
- a coating layer located on the base,
- wherein
- the coating layer comprises a first layer having a thickness of 1 μm or more located near the base, and a second layer located more away from the base than the first layer,
- an erosion rate A2 in the second layer is 0.4 μm/g or less which is obtained from a measurement by collision of a liquid A, in which 3 mass % of spherical Al2O3 particles having a mean particle diameter of 1.1-1.3 μm is dispersed in pure water, against the second layer at approximately right angles and at a speed of 98-102 m/s,
- an erosion rate A1 in the first layer is 1.8 μm/g or less which is obtained from a measurement by collision of the liquid A against the first layer at approximately right angles and at a speed of 98-102 m/s,
- the erosion rate A1 is 1.5 μm/g or less, and
- the erosion rate A2 is 0.35 μm/g or less.
Dependencies are inferred from the claim text.