Nanostructured Multi-Layer Coating on Carbides
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United States of America Patent
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Aug 22, 2013
app pub date -
Apr 19, 2012
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Feb 21, 2012
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Abstract
A coating for carbide substrates to produce cutting tool inserts employs a lower nanostructured layer in conjunction with a non-nanostructured layer. The nanostructured layer is produced by the addition of a refining agent flow, particular hydrogen chloride gas, during deposition. The combination of a nanostructured layer and non-nanostructured layer of coatings is believed to produce a cutting tool insert that exhibits longer life, particularly in conjunction with particularly difficult cutting applications such as the cutting of hardened steel with severe interruptions.
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