In laser engraving (also referred to has Laser Marking), the machine actually never touches the surface of the item as with a diamond engraver. The item is significantly affected when the laser beam passes over the surface. The energy delivered by the laser changes the surface of the material under the focal point by heating up the surface and subsequently marking the material with sort of flakes – especially on glass or crystal. On laser specified metals, the appearance is much more defined than engraving and, on brass may appear dark gray or black and on black metal the silver or gold behind the item shows through clearly. Lasering also “fills in” so if a logo has areas that are dark, they are filled in instead of outlined as with traditional engraving.

 

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