| 摘要 |
The coated tool comprises a base material and a wear-resistant coating film formed on the base material. The composition of the wear-resistant coating film is expressed as (Tix,Aly,Vz)(Cu,Nv,Ow). Relations x + y + z = 1, u + v + w = 1, 0.2 < x < 1, 0 </= y < 0.8, 0.02 </= z < 0.6, 0 </= u < 0.7, 0.3 < v </= 1 and 0 </= w < 0.5 hold between x, y, z, u, v and w. The thickness of the wear-resistant coating film is at least 0.5 mu m and not more than 15 mu m. The coated cutting tool comprises a base material consisting of cemented carbide and a wear-resistant coating film formed on the surface of the base material. The wear-resistant coating film includes a titanium nitride film which is formed to be in contact with the surface of the base material, and a composite nitride film, formed on the titanium nitride film, containing titanium, vanadium, nitrogen and an unavoidable impurity or titanium, aluminum, vanadium, nitrogen and an unavoidable impurity, or a composite carbo-nitride film, formed on the titanium nitride film, containing titanium, vanadium, carbon, nitrogen and an unavoidable impurity or titanium, aluminum, vanadium, carbon, nitrogen and an unavoidable impurity. The outermost surface of the wear-resistant coating film is coated with a low melting point oxide, containing vanadium oxide, having a melting point of not more than 1000 DEG C. <IMAGE> |
| 申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
OHARA, HISANORI;ARIMOTO, HIROSHI;MURAKAMI, REIZO;KITAGAWA, NOBUYUKI;NOGUCHI, KAZUO;OKADA, YASUTAKA |
