Aerospace Ceramic Matrix Composites

Aerospace Ceramic Matrix Composites

If you haven’t considered ultrasonic machining for your ceramic matrix composite (CMC) designs, you may be missing out on an opportunity to:

  • Reduce your total solution cost
  • Improve your production yields
  • Eliminate post-processing steps
  • Increase the reliability of your designs.

Bullen machines CMCs for defense and aerospace clients involved in high-reliability applications. For this and other critical applications, customers count on Bullen Ultrasonics for precision-machined CMCs.

Ultrasonic machining offers many advantages over conventional laser and EDM machining of ceramic matrix composites.


  • Lower Total Cost/Higher Yield
  • Non-thermal, process creates no HAZ, and little or no subsurface damage. As a result of these superior surface finishes, no post-machining polishing is required to relieve residual stress and slag caused by laser machining or EDM
  • With Bullen’s unique ultrasonic machining technology, the chemical and physical properties of your substrate material remain unchanged, increasing reliability
  • Features sizes not possible with laser machining on thicker substrates are possible with precision CMC machining from Bullen


SEM of a ultrasonically machined hole

SEM of a ultrasonically machined hole in an ceramic matrix composite


  • Machined slots
  • Round, square, and odd-shaped thru-holes and cavities