Ornamental color laser marking of metals

Gabzdyl, Jack
March 2008
Industrial Laser Solutions;Mar2008, Vol. 23 Issue 3, p20
The article offers information on laser marking of metals in Great Britain. It states the concept of using lasers to produce color marks on metals is not a new one. The generation of colored layers on metals was previously achieved using anodization, where the formation of carefully controlled, chemically produced oxide layers gives rise to a range of colors. The careful application of localized laser energy generates controlled oxide growth, and color marks on the same principle as anodizing.


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