Method and apparatus for structural coloration of metallic surfaces
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United States of America Patent
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Jan 1, 2019
Grant Date -
Jan 11, 2018
app pub date -
Jul 7, 2017
filing date -
Jul 8, 2016
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Abstract
Materials for, and methods of, colorizing a metallic surface with micro-gratings using vibration cutting technologies are provided. Micro-gratings on aluminum, brass, and stainless steel surfaces can be rapidly created to effect, under illumination, at least one color observable in the visible spectrum using elliptical vibration texturing, a vibration-assisted mechanical cutting process. The modified metallic surface can display multiple visible colors, an iridescent effect caused by changes in one or more cutting parameters employed to produce the micro-gratings, the angle of illumination by an incident light, and/or the viewing angle of the surface under illumination.
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