During RAPID + TCT, I had the opportunity to catch up with Fabrisonic to talk sound wave-based metal 3D printing. Fabrisonic brings sound into the world of manufacturing, harnessing sound waves for its Ultrasonic Additive Manufacturing (UAM) process, which received another patent early this year. President and CEO Mark Norfolk took the time to tell me more about the process and its applications, noting that UAM is a low-temperature solid-state process that welds together thin strips of metal ultrasonically.