Nanostructured metallic layer on carbide for improved coating adhesion
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United States of America Patent
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Mar 5, 2024
Grant Date -
Jul 30, 2020
app pub date -
Apr 15, 2020
filing date -
Feb 26, 2016
priority date (Note) -
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Abstract
A coating for carbide substrates employs a nanostructured coating in conjunction with a non-nanostructured coating. The nanostructured coating is produced by the addition of a refining agent flow, particular hydrogen chloride gas, during deposition, and may be produced as multiple individual titanium and titanium-based nanostructured layers varying functional materials in a series. The combination of a nanostructured coating and non-nanostructured coating is believed to produce a cutting tool insert that exhibits longer life. Pre-treating the substrate with a mixture of compressed air and abrasive medium prior to coating the substrate and post-treating the coated substrate with a mixture of water and abrasive medium after the coating process is believed to further enhance the wear resistance and usage life of the cutting tool.
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