发明名称 |
PVD-COATED CUTTING TOOLS AND METHOD FOR MAKING THE SAME |
摘要 |
A coated cutting insert includes a substrate that is either a ceramic substrate or polycrystalline cubic boron nitride-containing substrate and has a substrate surface. A base coating scheme is applied by chemical vapor deposition to the substrate surface wherein the base coating scheme includes the following coating layers: an inner coating layer adjacent to the substrate surface wherein the inner coating layer is a nitride selected from the group consisting of titanium nitride, zirconium nitride and hafnium nitride; an inner mediate coating layer deposited to the inner coating layer wherein the inner mediate coating layer is a carbonitride selected from the group consisting of titanium carbonitride, zirconium carbonitride and hafnium carbonitride; an outer mediate coating layer deposited to the inner mediate coating layer and wherein the outer mediate coating layer is a carbonitride selected from the group consisting of titanium carbonitride, zirconium carbonitride and hafnium carbonitride; and an outer coating layer deposited on the outer mediate coating layer wherein the outer coating layer is a carbide selected from the group consisting of titanium carbide, zirconium carbide and hafnium carbide. An exterior coating scheme is deposited on the base coating scheme by physical vapor deposition. |
申请公布号 |
US2016265106(A1) |
申请公布日期 |
2016.09.15 |
申请号 |
US201514645554 |
申请日期 |
2015.03.12 |
申请人 |
Kennametal Inc. |
发明人 |
Kumar Vineet;Penich Ronald M.;Leicht Peter R.;Greenfield Mark S.;Liu Yixiong |
分类号 |
C23C16/34;C23C16/44;C23C16/32;C23C14/22 |
主分类号 |
C23C16/34 |
代理机构 |
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代理人 |
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主权项 |
1. A coated cutting insert comprising:
a substrate wherein the substrate is either a ceramic substrate or polycrystalline cubic boron nitride-containing substrate, and the substrate having a substrate surface; a base coating scheme applied by chemical vapor deposition to the substrate surface; the base coating scheme comprising an inner coating layer adjacent to the substrate surface, and the inner coating layer comprising a nitride selected from the group consisting of titanium nitride, zirconium nitride and hafnium nitride, an inner mediate coating layer deposited to the inner coating layer comprising a carbonitride selected from the group consisting of titanium carbonitride, zirconium carbonitride and hafnium carbonitride, and an outer mediate coating layer comprising a carbonitride selected from the group consisting of titanium carbonitride, zirconium carbonitride and hafnium carbonitride, and an outer coating layer comprising a carbide selected from the group consisting of titanium carbide, zirconium carbide and hafnium carbide; and an exterior coating scheme deposited on the base coating scheme by physical vapor deposition. |
地址 |
Latrobe PA US |