Invention Grant
- Patent Title: PVD-coated cutting tools and method for making the same
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Application No.: US15487209Application Date: 2017-04-13
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Publication No.: US10253410B2Publication Date: 2019-04-09
- Inventor: Vineet Kumar , Ronald M. Penich , Peter R. Leicht , Mark S. Greenfield , Yixiong Liu
- Applicant: KENNAMETAL INC.
- Applicant Address: US PA Latrobe
- Assignee: KENNAMETAL INC.
- Current Assignee: KENNAMETAL INC.
- Current Assignee Address: US PA Latrobe
- Agent Larry R. Meenan
- Main IPC: C23C16/32
- IPC: C23C16/32 ; C23C16/34 ; C23C16/36 ; C23C28/04

Abstract:
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.
Public/Granted literature
- US20170218511A1 PVD-COATED CUTTING TOOLS AND METHOD FOR MAKING THE SAME Public/Granted day:2017-08-03
Information query
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