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SONATS is specialized in the increase of the fatigue life and the Stress Corrosion Cracking (SCC) resistance on welded structures for the oil and gas thanks to our patented Stressonic® process.

SONATS has developed an UIT solution for new building and in-service aluminum ship in support of superstructure crack repair, modernization and weld repairs on sensitized aluminum.

SONATS is specialized in the increase of the fatigue life and the Stress Corrosion Cracking (SCC) resistance on welded Pressure Vessels or Shells & Tube Heat Exchanger thanks to our patented STRESSONIC® process.

This document describes SONATS research, in-field experiences and knowledge about Ultrasonic Needle Peening (UIT/HFMI). It is dedicated to any people (engineers, welders, operators, controllers) who are interested in this process.

NOMAD, our portable ultrasonic impact treatment system is designed to treat on-site but also in manufacturing workshop.

Fatigue life improvement of welded infrastructures with ultrasonic impact treatment.

Ultrasonic Impact Treatment (UIT) or High Frequency Mechanical Impact (HFMI) is a process achievieng the same effect, but with more process control compared to conventional hammer peening.