| 发明名称 | Surface-coated cutting tool | ||
| 摘要 | A surface-coated cutting tool according to the present invention is a surface-coated cutting tool including a base material and a coating film formed on the base material, wherein the coating film includes at least a wear-resistant layer and an adhesion-resistant layer, the wear-resistant layer has a multilayer structure in which an A layer of a nitride containing Ti and Al as well as a B layer of a nitride containing Al and Cr are alternately stacked, and has a cubic crystal structure, and the adhesion-resistant layer is located at an outermost surface of the coating film, is composed of a nitride expressed by (AlaCrbTi1-a-b)N (wherein a+b<0.99, b>0.01, and 0.2b+0.7<a), and has a wurtzite-type crystal structure. | ||
| 申请公布号 | US9211588(B2) | 申请公布日期 | 2015.12.15 |
| 申请号 | US201314236885 | 申请日期 | 2013.06.24 |
| 申请人 | SUMITOMO ELECTRIC HARDMETAL CORP. | 发明人 | Setoyama Makoto;Shibata Akihiko;Xiao Yinxue;Kobayashi Akira |
| 分类号 | B23B27/14;C23C14/06;B23B51/00;B23C5/16;B23B9/00;C23C14/02;C23C28/04;C23C28/00;B32B15/01 | 主分类号 | B23B27/14 |
| 代理机构 | Venable LLP | 代理人 | Venable LLP ;Sartori Michael A.;Ostler Trent B. |
| 主权项 | 1. A surface-coated cutting tool including a base material and a coating film formed on the base material, wherein said coating film includes at least a wear-resistant layer and an adhesion-resistant layer, said wear-resistant layer has a multilayer structure in which an A layer of a nitride containing Ti and Al as well as a B layer of a nitride containing Al and Cr are alternately stacked, and has a cubic crystal structure, and said adhesion-resistant layer is located at an outermost surface of said coating film, is composed of a nitride expressed by (AlaCrbTi1-a-b)N (wherein a+b<0.99, b>0.01, and 0.2b+0.7<a), and has a wurtzite-type crystal structure. | ||
| 地址 | Itami-shi JP | ||