Coating layer with microstructure serrated edge
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United States of America Patent
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May 16, 2017
Grant Date -
Jul 31, 2014
app pub date -
May 29, 2012
filing date -
May 27, 2011
priority date (Note) -
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Abstract
A cutting tool formed by a coating layer on a substrate has cutting edges that feature serrations. The linear dimensions of the serrations may vary from a few nanometers up to 10 microns. The serrations result in a smoother cut edge on the workpiece, particularly when the workpiece is formed of certain materials that are seen as particularly difficult to cut, such as hardened steels.
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