GLASS & CERAMICS

Types of Glass and Ceramic Materials


Ceramics

  • Alumina Ceramic

  • Aluminum Silicate

  • Earthenware

  • Glazed Tile

  • Laser Tile

  • MACOR™

  • Porcelain

  • Saltillo Tile

  • Stoneware

  • Tungsten Carbide

  • Zirconia

Glass

  • Aluminosilicate Glass

    • Dragontrail Glass

    • Gorilla® Glass

    • Xensation® Glass

  • Borosilicate Glass

    • Pyrex®

  • Lead Crystal Glass

  • Quartz Glass

  • Soda Lime Glass

Laser Engraving of Glass and Ceramics
The energy of a CO2 laser beam heats glass and ceramic materials locally, causing micro-cracks to form on the surface of the material. Repeated laser processing passes cause the cracks to grow until small chips break loose. After several laser passes, a deep and well defined laser engraving is created in the material surface. The usual depth for laser engraving glass and ceramic materials is 0.012 to 0.015” (300 to 375 microns). Multiple passes are used for glass and ceramic material engraving to avoid excessive heat build-up, which can cause the material to crack. After engraving, the surface should be cleaned with a stiff brush to remove loose chips of material.

Laser Marking of Glass and Ceramics
For glass, the energy of a CO2 laser beam heats the surface locally causing micro-cracks to form. The cracks diffract light, creating a bright frosted appearance in the laser marked area. For certain ceramics, either a CO2 laser or a Fiber laser can be used to create a visible mark without removing a significant amount of material. The laser energy darkens the ceramic creating a sharp, well defined mark. Laser marking can be used to convey information such a serial number or a logo.

Combined Process
The laser engraving and marking processes described above can be combined without having to move or re-fixture the part.