Coated Tool
First Claim
1. A coated tool comprising a substrate and a coating layer disposed on a surface of the substrate, the coating layer including a first stack structure and a second stack structure,the first stack structure having a structure in which two or more kinds of layers with different compositions are periodically stacked wherein the average layer thickness of each of the layers is 60 nm to 500 nm,the second stack structure having a structure in which two or more kinds of layers with different compositions are periodically stacked wherein the average layer thickness of each of the layers is 2 nm to less than 60 nm,the layers constituting the first stack structure and the layers constituting the second stack structure including at least one selected from the group consisting of a metal including at least one metal element selected from Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Al, Si, Sr, Y, Sn and Bi;
- and compounds including at least one of these metal elements and at least one non-metal element selected from carbon, nitrogen, oxygen and boron.
1 Assignment
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Accused Products
Abstract
A coated tool includes a substrate and a coating layer disposed on a surface of the substrate. The coating layer includes a first stack structure (3) and a second stack structure (4). The first stack structure has two or more kinds of layers with different compositions periodically stacked with an average layer thickness of 60-500 nm. The second stack structure has two or more kinds of layers with different compositions periodically stacked with an average layer thickness of 2 nm to less than 60 nm. The layers in each stack structure include at least one selected from the group consisting of metal elements Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Al, Si, Sr, Y, Sn and Bi; and compounds including at least one of these metal elements and at least one non-metal element selected from carbon, nitrogen, oxygen and boron.
15 Citations
20 Claims
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1. A coated tool comprising a substrate and a coating layer disposed on a surface of the substrate, the coating layer including a first stack structure and a second stack structure,
the first stack structure having a structure in which two or more kinds of layers with different compositions are periodically stacked wherein the average layer thickness of each of the layers is 60 nm to 500 nm, the second stack structure having a structure in which two or more kinds of layers with different compositions are periodically stacked wherein the average layer thickness of each of the layers is 2 nm to less than 60 nm, the layers constituting the first stack structure and the layers constituting the second stack structure including at least one selected from the group consisting of a metal including at least one metal element selected from Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Al, Si, Sr, Y, Sn and Bi; - and compounds including at least one of these metal elements and at least one non-metal element selected from carbon, nitrogen, oxygen and boron.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
Specification