• 3M Reclosable Fasteners

  • Bonding Tapes

    • Adhesive Tapes

    • Extreme Sealing Tapes

    • Membrane Switch Spacers

    • VHB Tapes

  • Brick

  • Carbon Fiber

  • Ceramic Matrix Composite

  • Corian®

  • Fiberglass Sheet

  • Foam Core Board

  • FR4/G10

  • Graphic Overlay Materials

    • Dupont™ Teijin Films

    • SABIC Films

    • Tekra Films

  • Grip Tapes

  • Kapton® Tapes

  • Label Materials

  • Laser Tapes

  • Metal Matrix Composite

  • Optical Films

    • Vikuiti™

  • Protective Films

  • Pyralux®

  • Velcro®

Laser Cutting of Composites
Because composites are comprised of two or more different materials, choosing the proper laser wavelength(s) is critical. If all components of the composite are organic, they will all absorb the energy of a CO2 laser beam. The laser beam will heat the material directly in its path, causing it to vaporize. If the laser power is sufficiently high, the laser beam will cut completely through the material leaving a clean, smooth edge. If the components of the composite are metallic, the laser cutting process can be achieved with a Fiber laser. In many cases, the components of the composite will each require a different laser wavelength.

Laser Engraving of Composites
The power of the CO2 laser beam can be limited so that it removes (engraves) material to a specified depth. The laser engraving process can be used to create patterns and designs in the composite surface. Laser engraving can also be used to convey information.

Laser Marking of Composites
Many composites can be laser marked using a CO2 or Fiber laser beam. A CO2 laser should be used if the surface material is mostly organic. A Fiber laser should be used if the surface material is mostly metallic. In either case, the energy of the laser beam is absorbed by the surface of the composite causing its appearance to change. This creates a visible mark, without substantial material removal. Laser marking can be used to create designs or to convey information.

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