TECHNOLOGIES DEPARTMENT - EUROPE TECHNOLOGIES STRESSONIC(r) Ultrasonic Peening solutions provider to the Aerospace, Power Generation, Heavy Industries, Oil & Gas, Offshore and others. Mastering the Ultrasonic Shot Peening technique since 25 years, for fatigue life improvement of metal components and structures. In addition, SONATS is also proposing portable solutions such as Needle Peening for treatment of the welded assets, and Peen Forming and Straightening for easy-access and precise treatment of Aerostructure materials.