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US 2021/0237168 A1Published application
Silicon nitride ceramic tool comprising diamond film and method of preparing the same
AssigneeGuangdong University of Technology
InventorsChengyong WANG, Yuhai ZHOU, Lijuan ZHENG
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Abstract
A cutting tool, including a silicon nitride (Si3N4) ceramic substrate, and a diamond film coated on the surface of the Si3N4 ceramic substrate. The diamond film has a thickness of 7-12 μm. The cutting tool includes a tool nose, a blade, and a handle. The blade has a rake angle γ of 5-15°, a clearance angle α of 10-14°, and a helix angle of 15-45°. The blade includes four cutting edges.
Claims10
A cutting tool, comprising:
- a silicon nitride (Si3N4) ceramic substrate;
- and
- a diamond film coated on a surface of the Si3N4 ceramic substrate, and the diamond film having a thickness of 7-12 μm.
Dependencies are inferred from the claim text.