Invention Grant
- Patent Title: Coated cutting insert and method for making the same
- Patent Title (中): 涂层切削刀片及其制造方法
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Application No.: US13300268Application Date: 2011-11-18
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Publication No.: US08668982B2Publication Date: 2014-03-11
- Inventor: Peter Leicht , Mark Greenfield , Volkmar Sottke , Zhigang Ban , Hartmut Westphal , Yixiong Liu , Michael Frank Beblo
- Applicant: Peter Leicht , Mark Greenfield , Volkmar Sottke , Zhigang Ban , Hartmut Westphal , Yixiong Liu , Michael Frank Beblo
- Applicant Address: US PA Latrobe
- Assignee: Kennametal Inc.
- Current Assignee: Kennametal Inc.
- Current Assignee Address: US PA Latrobe
- Agent Matthew W. Gordon, Esq.
- Main IPC: B32B9/00
- IPC: B32B9/00

Abstract:
A coated cutting insert for removing material from a workpiece that includes a substrate is disclosed. A wear-resistant coating on the substrate that includes an alumina layer and a Zr- or Hf-carbonitride outer layer deposited on the alumina layer. The Zr- or Hf-carbonitride outer layer is subjected to a post-coat wet blasting treatment. The wet blasting changes the stress condition of the exposed alumina coating layer from an initial tensile stress condition to a compressive stress condition.
Public/Granted literature
- US20120128955A1 COATED CUTTING INSERT AND METHOD FOR MAKING THE SAME Public/Granted day:2012-05-24
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